Find two numbers a and b whose sum a+b is −3, and whose difference a−b is −7.Your answer is
Answers
Answer:
a = -5
b = 2
Step-by-step explanation:
a+b=-3
a-b= -7 +
2a = -10
a = -10/2
a = -5
a + b = -3
-5 + b = -3
b = -3 + 5
b = 2
Related Questions
You pick a card at random. 6 7 8 9 What is P(divisor of 70)? Write your answer as a percentage. %
Answers
Answer:
Step-by-step explanation:
Help I will give brainliest
Answers
the answer would be 56.52 inches
explanation:
2(3.14)9
18(3.14)
= 56.52
please simplify the expression i need help
Answers
Answer:
5a+2b+9
Step-by-step explanation:
The equation given to us is
3a+4+b+2a+5+b
Let's organize this a bit better.
3a+2a+b+b+4+5
Now, add.
5a+2b+9
Answer:
5a+2b=9
Step-by-step explanation:
pls put brainliest
ANSWER WITH WORK ! Plz
Perform the indicated operations using order of operations rules.
Answers
Answer:
1. (-20/3)+[(2×3+2)/3]=-12/3=4
2. (-5/3)-(2/3)-3= -5-2-6=-3
2. (10)+10/(-10+50)
3. 20/40
4. 2
The temperature in Alaska is 17 degrees below zero. What numerical value (how would you write this in number form) represents the temperature in Alaska?
Answers
(im not so sure its probably correct if you want it numerical.)
HEEEELLLLLLLLPPPPPPPPPP!!!!!!!!
NO SCAMS!!
Answers
Answer:
..........???
Step-by-step explanation:
I'm confused...... sorry for taking your points
question;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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angle x= 120
if you draw a straight line passing through x and parallel to the 2 straight lines that are up and down you will get the Z symbol then the angle will be the sum of the other 2 angles
Answer:
x = 120 degrees
Step-by-step explanation:
you would do 70+50 = 120
360 - 120 = 240
240 / 2 = 120
I got the 360 degrees because I thought of the it as a circle instead of triangles.
Hope this helps!
Mrs. Delles spent 120$ on a bag that was discounted 25%, what was the original price?
Will give brainiest for right answer.
Answers
original is $160.00
discounted price= $40.00
Answer:
You will pay $90 for an item with the original price of $120 when discounted 25%.
Step-by-step explanation:
If you buy an item at $120 with a 25% discount, you will pay 120 - 30 = 90 dollars.
help pls im confused and i will give you brainliest
A line passes through (3, 7) and (6, 9). Which equation best represents the line?
y = 3 over 2x + 5
y = 2 over 3x + 5
y = 3x + 2
y = 2 over 3x + 2
Answers
Madison created the two functions below. In comparing the rates of change which statement Function A and Function B is true?
A. Function A Function B have the same rate of change.
B. Function A has a greater rate of change than Function B has.
C. Function A and Function B both have negative rates of change.
D. Function A has a negative rate of change and Function B both have positive rate of change.
Answers
Answer:
b
Step-by-step explanation:
Expand the expression -12(4c - 3d) using the Distributive Property
Answers
Answer:
-48c - 37d
Step-by-step explanation:
Multiply both numbers by -12.
The expanded form of the expression is -48c+36d
What is Distributive Property?According to this property, multiplying the sum of two or more addends by a number will give the same result as multiplying each addend individually by the number and then adding the products together.
Given that, we have to expand the expression -12(4c - 3d) using the Distributive Property,
We know that the rule for distributive property is :
a(b+c) = ab+ac
Therefore,
-12(4c - 3d)
= -12(4c)+12(3c)
= -48c+36d
Hence, the expanded form of the expression is -48c+36d
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Correct answers only!
After conducting a survey of all her classmates Midge discovers that the amount of money everyone spends buying books each month has a mean of $30. What does the mean say about the amount of classmates spend on books?
Half of her classmates spent exactly $30 per month buying books.
Half of your classmates spent more than $30 per month buying books.
The majority of her classmates spent $30 per month buying books.
If the amount spent on books per month by all her the classmates is leveled, the amount will be $30.
Answers
Answer:
C: The majority of her classmates spent $30 per month buying books.
Step-by-step explanation:
The mean is the average of the numbers -> its C
Answer:
C
Step-by-step explanation:
Find the perimeter of this shape.
Answers
Answer:
draw a line that makes a triangle and rectangle.
hypotenuse= 30
3k-4k-5k triangle
18-24-30
so the short part of triangle is 18 cm
10+10+18+24+30 equals 92
sorry for language I am not familiar with English
the perimeter of this shape is
24+10+10+30+\(\sqrt{30^{2} -24^{2} }\) = 92 cm
A coordinate plane is shown.
Which of the four triangles was formed by a translation of Triangle ABC?
1
2
3
4
Answers
PLEASE IS MATH 8th GRADE IS FOR TODAY
Answers
Answer: The height would be 6 feet
Step-by-step explanation: If you want you can get the answer expert verified because I don't know how to show the work I did on a computer.
happy to help
Im really need help don't ask why 4 questions but I will give 15 to the most genius pls pls help me
Answers
Answer:
1.) KL/KN = WX/WZ
2.) Their angles must be the same.
3.) True, side lengths are proportional, angles are the same.
4.)
Statement 1.) F
Statement 2.) T
Statement 3.) T
Statement 4.) You could argue this is true since congruent angles are proportional, but the question said to find the two rules so they're likely looking for an answer of False on this one.
Step-by-step explanation:
Congruent means they're the same.
Similar means their side lengths are proportional and their angles are identical.
Multiply 11.9 × 22.1. 2.6299 2,629.9 262.99 26.299
Answers
Step-by-step explanation:
11.9 * 22.1
= (12 - 0.1) * (22 + 0.1)
= 264 - 0.1 * 10 - 0.1
= 262.99.
Answer:
262.99
Step-by-step explanation:
I took the practice exam
100 Points: Please answer all questions correctly.
Mathematics middle school Analyze And Graph Relationships assignments
Final Assignment
Answers
Answer:
2
Step-by-step explanation:
3*0=0$
3*1=3$
3*2=6$
3*3=9$
3*4=12$
6*0=0
6*1=6
ect.
The relationship is 2 because 6/3=2
pls help this is urgent
Answers
Answer:
\(\frac{196}{800}\) converted to decimal is 0.245
Step-by-step explanation:
Help please on this photo below
Answers
Answer:
12. The quotient of a number and ten = n/6
13. The sum of a number and six = x + 6
14. The product of nine and five less than a number = n = 9*5
15. Four times a number, reduced by one = 4*n - 1
I may have some wrong answers so please check them. :l
13- n + 6
14- 9(n-5) this is nine times n-5, n-5 HAS to be in parentheses!
15- (4 * N) -1
Last year, the school basketball team won 75% of their 32 games. How many games did the school basketball team win last year?show work pls
Answers
Answer:
24 games won
Step-by-step explanation:
Last year, the school basketball team won 75% of their 32 games. How many games did the school basketball team win last year?
75% = 0.75
32 * 0.75 = 24 games won
Answer:
24 games
Step-by-step explanation:
(75/100)*32
= (75*32)/100
= 2400/100
=24
hope this helps!
Which expression is equivalent to 4x2−(8x−4x2)+5+(4x−10)?
−4x−5
12x + 15
8x² + 12x + 15
8x2−4x−5
Answers
None of the above
(4)(2)−(8x−(4)(2))+5+4x−10
=8+−8x+8+5+4x+−10
Combine Like Terms:
=8+−8x+8+5+4x+−10
=(−8x+4x)+(8+8+5+−10)
=−4x+11
The answer is -4x+11
If you wrote something wrong, then the answer might be the first option
PLSS HELP ASAP Only 2, 3 AT THE BOTTOM
Answers
Answer:
2 is 30
Step-by-step explanation:
Solve and explain each step
Answers
3marbles in total(1red ,1blue,1green)
If two are chosen:(possible chosen-Red and green or blue and green or blue and red)
So possible chosen with replacement with the options given =
Pr(Green and blue)+Pr(blue and green)
(1/3 x 1/3) + (1/3 x 1/3)
1/9 + 1/9
2/9
Without replacement
Pr(green and blue) + Pr(blue and green)
(1/3 x 1/2) + ( 1/3 x 1/2)
1/6 + 1/6
2/6
1/3
Without replacement = 1/3
3marbles in total (1red , 1blue, 1green)
If two are chosen: (possible chosen-Red and green or blue and green or blue and red)
So possible chosen with replacement with the options given =
Pr(Green and blue)+Pr (blue and green)
(1/3 × 1/3) + (1/3 × 1/3)
1/9 + 1/9
2/9
Without replacement
Pr(green and blue) + Pr(blue and green)
(1/3 × 1/2) + (1/3 × 1/2)
1/6 + 1/6
2/6
1/3
Without replacement = 1/3
please help me i will give brainliest to first person to anwser.
Answers
First we start with the formula for cylinders v=(pi)r(squared)h filled in Thats v=(3.14)(8 squared) (8) which brings us to the answer 1607.68 but you must round to the nearest tenth aka 1607.7
Answer:
The first option, V ≈ 1607.7 in²
Step-by-step explanation:
Find the volume of the given cylinder.
\(\begin{center}\framebox{\parbox{4cm}{\textbf{Volume of a Cylinder:}\\[2ex]The volume of a cylinder with radius $r$ and height $h$ is given by the formula:\\[2ex]\center{$V = \pi r^2 h$} \\ \\}}\end{center}\)
Given:
r = 8 in
h = 8 in
π = 3.14
Find:
V = ?? in³
\(\hrulefill\)
Now solving,
Substitute the given values into the formula:
=> V = (3.14)(8)²(8)
Using a calculator to simplify:
=> V = 1607.68 in²
Rounded to the nearest tenth:
∴ V ≈ 1607.7 in²
Thus, the first option is correct.
Multiplication Rule: Rewrite the product as a single power.
84 · 85 =
Answers
Jordan is knitting a sweater. He keeps track of how many balls of green and yellow yarn he uses in the table below. If he uses 15 balls of yellow yarn, how many balls of green yarn will he need?
Answers
Write the equations of each line in slope-intercept form. (y=mx+b)
Answers
The slope-intercept form of the equation of a line is given by:
y = mx + b
where m is the slope of the line, and b is the y-intercept.
To find the equation of a line in slope-intercept form, we need to determine the values of m and b.
Here are two examples:
The line passes through the points (2, 4) and (4, 8).
To find the slope, we use the formula:
m = (y2 - y1)/(x2 - x1)
where (x1, y1) = (2, 4) and (x2, y2) = (4, 8)
m = (8 - 4)/(4 - 2) = 2
To find the y-intercept, we can use the point-slope form of the equation of a line:
y - y1 = m(x - x1)
where (x1, y1) is one of the points on the line, for example, (2, 4).
y - 4 = 2(x - 2)
y - 4 = 2x - 4
y = 2x + 0
Therefore, the equation of the line in slope-intercept form is y = 2x.
The line passes through the point (3, 7) and has a slope of -3.
We can use the point-slope form of the equation of a line to find the equation in slope-intercept form.
y - y1 = m(x - x1)
where (x1, y1) is the given point, (3, 7), and m is the slope, which is -3.
y - 7 = -3(x - 3)
y - 7 = -3x + 9
y = -3x + 16
Therefore, the equation of the line in slope-intercept form is y = -3x + 16
Answer:
The equation would be y = -2x + 19
Step-by-step explanation:
To find this, we can use the point and the slope in point-slope form. The we solve for y.
y - y1 = m(x - x1)
y - 7 = -2(x - 6)
y - 7 = -2x + 12
y = -2x + 19
PLEASE HELP THIS IS DUE IN 30 MINUTES
Answers
Answer:
x = 20
Step-by-step explanation:
x, 7x, and x are all supplementary angles which means they all add up to 180:
x + 7x + x = 180
9x = 180
x = 20
Answer:
x° = 20°
Step-by-step explanation:
From the diagram, we see that 9x for a straight angle, therefore we know the following...
9x° = 180°
x° = 180° / 9
x° = 20°
The set of points (–3, 7), (0, –3) and (6, 1) are plotted in the coordinate plane. Which of the following statements is true about the graph of these points? A. They do not represent a linear function. B. The slopes of the lines between each pair of points are equal. C. The first coordinate of each ordered pair is always less than the second coordinate. D. The coordinates of the ordered pairs satisfy the equation .
Answers
Answer:
X coordinate
Y coordinate
rectangle
Step-by-step explanation:
The statements is true about the graph of these points is
The coordinates of the ordered pairs satisfy the equation .
What is slope?The slope of a line is the measure of the steepness and the direction of the line. The slope of a line is defined as the change in y coordinate with respect to the change in x coordinate of that line.
Slope = m = tan θ = (y2 - y1)/(x2 - x1)
where, m is the slope, and θ is the angle made by the line with the positive x-axis.
According to the question
The set of points (–3, 7), (0, –3) and (6, 1) are plotted in the coordinate plane.
Conditions which are true in options for set of points .
a> They do not represent a linear function.
A linear function is defined as a function that has either one or two variables without exponents.
This statement is false they do represent the linear function.
b>The slopes of the lines between each pair of points are equal.
slopes between (–3, 7), (0, –3)
Slope = (y2 - y1)/(x2 - x1)
Slope = (7 - (-3))/( (-3))
Slope = \(\frac{-10}{3}\)
slopes between (0, –3) and (6, 1)
Slope = (y2 - y1)/(x2 - x1)
Slope = (1 - (-3))/(6- (0))
Slope = \(\frac{2}{3}\)
Hence, this statement is false .
c>The first coordinate of each ordered pair is always less than the second coordinate.
This statement is false as in both ordered pair (0, –3) and (6, 1) first coordinate is bigger than second
d>The coordinates of the ordered pairs satisfy the equation .
This is true as ordered pairs satisfy the equation .
y = mx +c
Hence, the statements is true about the graph of these points is
The coordinates of the ordered pairs satisfy the equation .
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