Evaluate 9÷3[(20-7) -\(2^{2}\)
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PLEASE HELP
Consider the expressions (3m+2n−6) and (−4−6m+7n).
Part A
What is the sum of the expressions for n=−2 and m=5?
The sum is
Answers
Answer:
5, -20
Step-by-step explanation:
Given the equation (3m+2n−6) and (−4−6m+7n).
Also, given that we're told that
n = -2 and
m = 5, if we take a rather direct approach by substituting like for like, we have
(3m+2n−6) = (3 * 5 + 2 * -2 - 6)
(3m+2n−6) = 15 - 4 - 6
(3m+2n−6) = 15 - 10
(3m+2n−6) = 5
(−4−6m+7n) = (-4 - 6 * 5 + 7 * 2)
(−4−6m+7n) = -4 - 30 + 14
(−4−6m+7n) = -34 + 14
(−4−6m+7n) = -20
Therefore, we proceed to conclude that the answers are 5 and -20 respectively
Very sleepy plz help, been doing these all day... question in photo
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Answer:
20 40 and 90 are correct
Step-by-step explanation:
A rectangle length is 5 more than its width. If the premiditer of the rectangle is 66 inches, what is the length of the rectangle
Answers
Answer:
\( \boxed{ \bold{ \huge{ \boxed{ \sf{19 \: inches}}}}}\)
Step-by-step explanation:
Let the width be 'w'.
Length of a rectangle ( l ) = 5 + w
Perimeter of a rectangle = 66 inches
First, finding the width of a rectangle
\( \boxed{ \sf{perimeter \: of \: rectangle = 2(l + w)}}\)
\( \dashrightarrow{ \sf{66 = 2(5 + w + w)}}\)
\( \dashrightarrow{ \sf{66 = 2(5 + 2w)}}\)
\( \dashrightarrow{ \sf{66 = 10 + 4w}}\)
\( \dashrightarrow{ \sf{10 + 4w = 66}}\)
\( \dashrightarrow{ \sf{4w = 66 - 10}}\)
\( \dashrightarrow{ \sf{4w = 56}}\)
\( \dashrightarrow{ \sf{ \frac{4w}{4} = \frac{56}{4} }}\)
\( \dashrightarrow{ \sf{w = 14 \: inches}}\)
Width of a rectangle ( w ) = 14 inches
Now, Substituting / Replacing the value of w in order to find the length of rectangle
\( \sf{length = 5 + w}\)
\( \dashrightarrow{ \sf{length = 5 + 14}}\)
\( \dashrightarrow{ \sf{19 \: inches}}\)
Length of a rectangle = 19 inches
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Number graph ranging from negative four to four on the x and y axes. A line with a positive slope is drawn on the graph, passing through the labeled point A at (zero, two) and the labeled point B at three, three). What is the slope of the line passing through points A and B? Responses −3 − 3 , −15 − 1 5 14 1 4 13
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The slope of the line passing through points A and B is 1/3.
The formula for the slope of a line to find the slope passing through points A and B. The formula is:
slope = (change in y) / (change in x)
Let's label the coordinates of point A as (x₁, y₁) and the coordinates of point B as (x₂, y₂).
Then, substitute the values and calculate the slope:
slope = (y₂ - y₁) / (x₂ - x₁)
slope = (3 - 2) / (3 - 0)
slope = 1 / 3
Therefore, the slope of the line passing through points A and B is 1/3.
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50 divided by 0 divided by 100
brainliest if answerd first
Answers
Answer:
0.1 i thougt was 100
Step-by-step explanation:
Answer: 0
Step-by-step explanation: If you divide 50 by 0 you get 0. If you divided 0 by 100, it would be 0. Have a nice day!
4x - 2 - 8x = 22
help
Answers
Answer:
x = -6
Step-by-step explanation:
4x - 2 - 8x = 22
-4x - 2 = 22
-4x = 24
4x = -24
x = -6
Steps:
4x-2-8x=22
4x-8x-2=22. (Combine like terms)
-4x-2(+2)=22 (+2). (Subtract 4x and 8 then add 2 on both sides which will cancel the negative 2)
-4x/-4=24/-4(divide -4 on both sides which leaves x)
X=-6 (answer)
Does anyone know the answers to the graded activities on plato?
Answers
Answer:
Explanation
There are some activities in Courseware content that report scores and some that just report mastery and/or completion status.
Resolution
Dynamic vs. Non-dynamic mastery tests
Mastery tests give mastery status if the score is 80% or higher, but not all tests report a score. There are two types of mastery tests in Courseware content:
Non-dynamic tests: Those that do report a score, such as those in the Writing Process and Practice titles, in the Grammar and Mechanics modules, give the same number of questions each time; these are non-dynamic tests. For example, Splitting Fused Run-ons: Mastery Test presents ten questions. Even if the Learner answers the first three questions incorrectly and is, at that point, no longer able to answer eight correctly to achieve mastery, the remaining seven questions are presented.
Dynamic tests: Mastery tests from some content titles, such as Essential Reading Skills, however, are dynamic, which means they adapt to the Learner's responses. These tests do not always give the maximum number of questions; instead, they will end sooner if 80% is either achieved or no longer achievable. These tests show mastery if 80% or better was achieved, but do not show a score. For example, in Essential Reading Skills, Pronouns: Mastery Test, the maximum number of questions presented is five; mastery requires four questions are answered correctly. The test will end early if the student answers the first four correctly or two incorrectly out of the first four. Mastery is still based on achieving 80% or better, but the score is not fully determined, so no score is reported, by design.
Step-by-step explanation:
A student is attempting to convert a slope-intercept equation into standard form. Which of the following statements best applies to the sample math given below? Given y=1/4x+2 I first isolate the constant. After doing so, I get the equation -1/4x+y=2 To remove the fraction, I multiply by –4, giving the equation x-4y=2 which is the final answer. A. the work shown to isolate the constant is not correct B. the work shown to remove all fractions is not correct C. the final answer is not in standard form D. the work shown is correct
Answers
The statement that applies to the sample math is:
B. the work shown to remove all fractions is not correct
How to change the subject of the formula?The given steps are:
y = ¹/₄x + 2
- I first isolate the constant.
- After doing so, I get the equation: -¹/₄x + y = 2
- To remove the fraction, I multiply by –4, giving the equation x - 4y=2, which is the final answer.
The correct steps are as follows:
y = ¹/₄x + 2
First isolate the constant to get: y - ¹/₄x = 2
To remove the fraction, Multiply the obtained equation by –4
So, Equation : x - 4y = -8
On comparing both the work we can see that in the given work the removal of fraction is done incorrectly
They didn't multiply -4 on the right hand side .
Thus, option B applies.
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How many significant figures are in the number
43.6? 43.6 has [?] significant figures.
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Answer:
43.6 has 3 significant figures.
Solve for x.
8x=4x−32
A)x = 8
B)x = 4
C) x=−4
D) x=−8
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Answer:
x=-8
Step-by-step explanation:
i took the quiz
Answerd
Step-by-step explanation:
9. What is m JKM? A 28° C 90° B 58.5° D 117°
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Step-by-step explanation:
her it Go i think it is helpful for u
Solve for x.
OA. 9
OB. 1
OC. 4
OD.7
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The value x in the secant line using the Intersecting theorem is 4.
What is the value of x?Intersecting secants theorem states that " If two secant line segments are drawn to a circle from an exterior point, then the product of the measures of one of secant line segment and its external secant line segment is the same or equal to the product of the measures of the other secant line segment and its external line secant segment.
From the figure:
First sectant line segment = ( x - 1 ) + 5
External line segment of the first secant line = 5
Second sectant line segment = ( x + 2 ) + 4
External line segment of the second secant line = 4
Using the Intersecting secants theorem:
5( ( x - 1 ) + 5 ) = 4( ( x + 2 ) + 4 )
Solve for x:
5( x - 1 + 5 ) = 4( x + 2 + 4 )
5( x + 4 ) = 4( x + 6 )
5x + 20 = 4x + 24
5x - 4x = 24 - 20
x = 4
Therefore, the value of x is 4.
Option C) 4 is the correct answer.
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Need help will give brainliest
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The equation formed after the transformations is given as follows:
\(g(x) = \frac{1}{6}\sqrt{x + 3}\)
How to obtain the function?The parent function in this problem is defined as follows:
\(f(x) = \sqrt{x}\)
For the vertical shrink by a factor of 1/6, the function is multiplied by 1/6, hence it is given as follows:
\(g(x) = \frac{1}{6}\sqrt{x}\)
For the translation left 3 units, we have that x -> x + 3, hence:
\(g(x) = \frac{1}{6}\sqrt{x + 3}\)
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Use the polling tool to respond to the question below.
Gina typed 2,700 words. She types 45 words per minute. How long did she type for?
HELP PLZZ
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Answer:
She typed for 60 minutes (1 hour).
Step-by-step explanation:
Do 2,700 divided by 45 to get your answer.
2,700 ÷ 45 = 60
She typed for 60 minutes (1 hour).
please help meh I'm I'm slowlyy from this question TwT send help
Answers
Answer:
so what XDXD
Step-by-step explanation:
Length of the lot is 7 5/8 inches 1/2in=16ft
A.) 234ft
B.) 245 ft
C.) 244 ft
D.) 254 ft
Answers
Answer:
244 ft
Step-by-step explanation:
Scale: 1/2 in = 16 ft
Scale length = 7 5/8 inches
Real length = ?
We can use a proportion.
1/2 in : 16 ft = 7 5/8 in. : x
(1/2)/16 = (7 5/8)/x
(1/2)x = 16 × 7 5/8
(1/2)x = 122
x = 244
Answer: C. 244 ft
Find the value of 'x' if m (5x+5)° and m
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The value of x is 12
What are complementary angle?Two angles are called complementary when their measures add to 90 degrees. Two angles are called supplementary when their measures add up to 180 degrees.
Each angle In a rectangle is 90°. This means that <WRV + <WRS = 90°
therefore,
5x+5 = 7x -19
collecting like terms
5x -7x = -19-5
-2x = -24
divide both sides by -2
x = -24/-2
x = 12
therefore the value of x is 12
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grant is thinking of two numbers. He says one of the numbers is twice the other number and the sum of the numbers is 42. what are the numbers?
Answers
Answer:
Answer is in attached photo.
Step-by-step explanation:
SolutionThe solution is in the attached photo, do take note to solve this question, we can assign 2 variables to the 2 conditions stated in the question, and solve them simultaenously.
what is the maths formula for area
Answers
Answer:
Quick internet search:
For each proof, you must include (i.e., write) the premises in that proof. I do not want to see any proofs without premises. YOU CANNOT USE CONDITIONAL PROOF (CP), INDIRECT PROOF (IP), OR ASSUMED PREMISES (AP). Additionally, use only the 18 rules of inference found in the text and in the notes. If you use an inference rule such as Resolution or Contradiction, you will lose points. 1. 1. C ---> (~D ---> ~X)2. C3. X /D (Note: /D means you have to prove that D validly follows from the premises.)_________________________________________________________________2. 1. A ---> ~B2. B3. ~A ---> (C v ~ B) /C____________________________________________________________________3. 1. A ---> ~D2. ~D ---> (~B v ~~A)3. A4. B /~~A___________________________________________________________________Note:you don't need to use DN and when you have iterated negation signs, do not use parentheses.~~A does not need parentheses.
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B is true, so we can conclude ~~A by disjunctive syllogism.
This proof is based on the inference rules you provided.
D Proof: Premises:
C ---> (~D ---> ~X)
The Modus Ponens Rule was used.
Finally, X /D
Explanation: Using Modus Ponens, we can conclude that D ---> X from premises 1 and 2.
Because premise 2 is true, we can conclude X via modus tollens.
We can conclude that D must be false because X is true.
Evidence for C:
Conditions: A ---> B B
Modus Tollens is the rule that was used.
Finally, C / A
Explanation: Using Modus Tollens, we can conclude from premises 1 and 2 that A.
Because A is false in premise 1, we can conclude that B is true.
Because premise 2 is true, we can conclude C using disjunctive syllogism.
Proof for ~~A:
Premises:
A ---> ~D
~D ---> (~B v ~~A)
A
B
Rule used: Modus Ponens
Conclusion:
~~A /B
Explanation:
From premise 1 and 3, using Modus Ponens, we can conclude that ~D.
From premise 2 and ~D, using Modus Ponens, we can conclude that ~B v ~~A.
From premise 4, B is true, so we can conclude ~~A by disjunctive syllogism.
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Select all of the following tables which represent y as a function of x
.
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The ordered pairs that represents a function y in terms of x are {(-2, -3),(1, 3),(1, 6) (9, 8}, (12, 11)) and {(-3, -5), (3, 2), (6, 5), (7, 9), (10, 16)}
Linear functionsA set of ordered equation represents a linear function if the domain of the coordinates are not repeated.
For instance, the ordered pairs that is a function are the coordinates that do not have any repeated y-coordinates.
From the given linear functions, the ordered pairs that represents a function y in terms of x are {(-2, -3),(1, 3),(1, 6) (9, 8}, (12, 11)) and {(-3, -5), (3, 2), (6, 5), (7, 9), (10, 16)}
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Calculate the sector area: 16 in 90°
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Therefore , the solution of the given problem of area comes out to be
r = 8.
Define area.The term "area" describes the amount of space occupied by a 2D form or surface. We use cm2 or m2 as our units for measuring area. A shape's area is determined by dividing its length by its breadth.
Here,
A 90 degree sector occupies 1/4 of a circle, which has 360 degrees. Consequently, the area of the whole circle can be written as
Sector Size/Sector Area = Circle Area/360
16 ft2/90 = n/360
(360) (16 ft2)/90 = n
(4)(16 ft2) = n
The total size of the circle is n = 64 ft2.
Since Area of a Circle equals r2,
∏r2 = 64
r2 = 64/∏
r = √(64/∏)
We multiply by / to get by rationalizing the denominator.
r = √(64∏)/√(∏2) Then using the denominator's square root, we can obtain the solution of
r = √(64∏)/∏
r = 8
Therefore , the solution of the given problem of area comes out to be
r = 8.
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3) Bill is a freshman attending a 4-year college. He has been approved for a $5,000 with an APR of 6.75%.
He is not required to make any payment for 10 years since his payment will be deferred while his enroll
in school. How much interest will he pay in 10 years?
Answers
Interest will he pay in 10 years is $3375.
Given:
Bill is a freshman attending a 4-year college. He has been approved for a $5,000 with an APR of 6.75%.
He is not required to make any payment for 10 years since his payment will be deferred while his enroll in school.
1 year interest = 5000*6.75%
= 5000*6.75/100
= 50*6.75
= 50*675/100
= 1*675/2
= 337.5
10 years interest = 10 * 337.5
= 10 * 3375/10
= $3375.
Therefore Interest will he pay in 10 years is $3375.
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Work out (4 x 3)² ÷ 6
Answers
An expression is defined as a set of numbers, variables, and mathematical operations. The solution of (4 x 3)² ÷ 6 is 24.
What is an Expression?In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.
The solution of the expression (4 x 3)² ÷ 6 is,
(4 x 3)² ÷ 6
= (12)² ÷ 6
= 144 ÷ 6
= 24
Hence, the solution of (4 x 3)² ÷ 6 is 24.
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what is the domain of the given relation {(2,2),(3,2),(2,3),(1,4}
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Check the picture below.
A company in South Dakota manufactures hard hats used in the mining industry. They record measurements on all the hats they produce for quality control and planning purposes. The measurements they collect include hat size, circumference of the hat, and lengths of the major and minor axes. Meaning, the company wants to predict size of hat given the circumference. What is the response variable
Answers
Answer:
Response variable is the hats because it is the variable that is being predicted.
Step-by-step explanation:
A response variable is the subject/variable that responds to the various changes being made in an experiment. For example, if we are testing the effect of some drugs on people's emotions. The response variable here will be "emotions" because it is the subject that responds to the substance of the experiment.
Now, applying that to our question, the size of the hats will be the response variable because it is the variable in the experiment that the company is trying to predict from the circumference.
the population of idaho in 2000 was 1293 however the population of idaho in 1900 was about 162,000 and has been doubling every 10 years. if Idaho had continued to grow at that rate, what would the population have been in 2000
Answers
Answer:
160100
Step-by-step explanation:
162,000-1900=160100
If a polynomial has four terms, 3x3 + 5x + 6x2 + 10, which factoring method can be considered? perfect-square trinomial difference of squares factor by grouping sum of cubes
Answers
Answer:
c
Step-by-step explanation:
just took the quiz
Answer:
The answer is C) factor by grouping
Step-by-step explanation:
Edge 2020
Whoever answers i’ll mark brainliest
Draw out a two column proof
Answers
Show your work to get full credit. Solve the following problem with any method you want.
1.5 x 32
Answers
Answer:
48
Step-by-step explanation:
1.5
x 32
X 32
———
30
+ 450
———
48.0