Answer:
The probability that the event 'E'
P(E) = 0.2
Step-by-step explanation:
Explanation:-
Given that the sample space
S = { 1,2,3,4,5,6,7,8,9,10}
Total number of exhaustive events n(S) = 10
Given that the outcomes are equally likely
Let 'E' be the event { 5,8}
Favourable events n(E) = 2
The probability that the event 'E'
\(P(E) = \frac{n(E)}{n(S)}\)
\(P(E) = \frac{2}{10} = \frac{1}{5} = 0.2\)
FIND THE MEASURE OF MKH
(02.07)A student writes an incorrect step while checking if the sum of the measures of the two remote interior angles of triangle ABC below is equal to the measure of the exterior angle.
A triangle ABC is shown. The base of the triangle extends into a straight line. The angle formed between this straight line and the edge of the triangle is marked as p. The angle adjacent to p is marked as o, and the other two angles inside the triangle are marked as m and n.
Step 1: m∠m + m∠n + m∠o = 180 degrees (sum of angles of a triangle)
Step 2: m∠p − m∠o = 90 degrees (alternate interior angles)
Step 3: Therefore, m∠m + m∠n + m∠o = m∠o + m∠p
Step 4: So, m∠m + m∠n = m∠p
In which step did the student first make a mistake and how can it be corrected?
Step 1; it should be m∠m + m∠n + m∠o = 90 degrees (corresponding angles)
Step 1; it should be m∠m + m∠n + m∠o = 90 degrees (adjacent angles)
Step 2; it should be m∠o + m∠p = 180 degrees (alternate exterior angles)
Step 2; it should be m∠o + m∠p = 180 degrees (supplementary angles)
Answer:
I'm pretty sure it's the last option. Step 2; it should be m<o+m<p=180 degrees (supplementary angles)
Step-by-step explanation:
I think it's the last one since m<o and m<p are supplementary.
Bag A contains one red ball and one blue ball, whereas bag B contains two whiteballs and three black balls. One ball is drawn, and with probability 0.2 it comes from bag Aand with probability 0.8 it comes from bag B. Use a tree diagram to calculate the probabilityof each of the four possible outcomes.
A tree diagram to calculate the probability of each of the four possible outcomes are 0.8, 0.8, 0.1, 0.06.
Bag A contains one red ball and one blue ball, whereas bag B contains two white balls and three black balls.
P(A) = 0.2
P(B) = 0.8
Probability of getting one red is 1/1 = 1
Probability of getting one blue is 1/1 = 1
Probability of getting one white ball is 1/2
Probability of getting 1 black ball is 1/3
Therefore, by tree diagram we get four possible probability that is
0.8, 0.8, 0.1, 0.06.
A probability tree illustration is used to represent the probability of circumstance of events without using complicated formulas. It displays all the possible issues of an event. The purpose of a probability tree is that it shows all the possible issues of an event and calculates the probability of these issues. A probability tree illustration can either represent a series of independent events or it can be used to denote tentative chances.
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For a science experiment, Jack adds 1 tsp of salt to 3 tsp of water. Mika adds 4 tsp
of salt to 9 tsp of water. Whose water is saltier?
Answer:
Mikas is Saltier
Step-by-step explanation:
Brainliest please.
Jack used 1 tsp to 3 tsp of water Thats a fraction of 1/3
Mika Used 4 tsp to 9 tsp of water which its 4/9
4/9 is greater than 1/3
Triangle JKL has vertices at J(−1, −5), K(−2, −2), and L(2, −4). Determine the translation direction and number of units of the image of triangle JKL if vertex J′ is at (−3, −5).
4 units down
4 units up
2 units to the right
2 units to the left
A triangle JKL has vertices at J(−1, −5), K(−2, −2), and L(2, −4) and J′ at (−3, −5). The translation direction is 2 units to the left. The number of units of the image of triangle JKL is 2 units to the left only.
Given that a triangle JKL has vertices at J(−1, −5), K(−2, −2), and L(2, −4) and J′ at (−3, −5). We have to determine the translation direction and the number of units of the image of triangle JKL. Let's first find the translation direction to determine the image of triangle JKL.
Seeing the position of J and J', we can determine that the translation was made in the left direction because J has moved from the point (-1,-5) to (-3,-5). Thus, the translation direction is 2 units to the left. Now, let's calculate the number of units of the image of triangle JKL.
Let's draw a rough sketch of the triangle JKL and locate its vertices J(-1,-5), K(-2,-2), and L(2,-4).To find the number of units of the image of triangle JKL, we need to find the horizontal and vertical distances between the vertices of the original triangle and its image.
We can use the horizontal distance between J and J′ as a reference to calculate the remaining distances. J has moved 2 units to the left, so the horizontal distance between J and J′ is 2. Now, let's calculate the vertical distance between J and J′. The coordinates of J and J′ are (-1,-5) and (-3,-5), respectively.
The difference between the y-coordinates of J and J′ is 0, which means that J and J′ are on the same horizontal line. Therefore, the vertical distance between J and J′ is 0. Hence, the image of the triangle JKL has moved 2 units to the left and 0 units vertically. Thus, the number of units of the image of triangle JKL is 2 units to the left only.
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What translation would map C onto A?
A. (x – 7, y + 3)
B. (x + 3, y – 7)
C. (x – 3, y + 7)
D. (x + 7, y – 3)
Answer:
A
Step-by-step explanation:
consider the coordinates of points C and A
C (4, - 1 ) and A (- 3, 2 )
4 → - 3 in the x- direction is - 7
- 1 → 2 in the y- direction is + 3
then the translation rule is
(x, y ) → (x - 7, y + 3 )
For a standard normal distribution, find: P(Z > -1.56) Express the probability as a decimal rounded to 4 decimal places. For a standard normal distribution, find: P(Z < 0.26) Express the probability as a decimal rounded to 4 decimal places.
the value of P(Z>-1.56) is 0.9406
The value of P(Z<0.26) is 0.6026
For a standard normal distribution,
the standard normal distribution is also known as the Z - distribution
it is a very special type of distribution in which the value of mean is zero and the value of standard deviation is one.
the formula of standard normal distribution is
\(f(x)=\frac{1}{\sigma\sqrt{2\pi } } e^{\frac{-1}{2}(\frac{x-\mu}{\sigma})^2 }\)
(OR)
Z=\(\frac{x-\mu}{\sigma}\)
where
\(\mu\) is the value of mean
\(\sigma\) is the value of standard deviation
f(x) is the probability density function
now,
the value of P(Z>-1.56) is
P(Z> -1.56) = 1 - P(Z< -1.56)
=> 1 - 0.05938
=> 0.94062 (By rounding to 4 decimal places we get)
=> 0.9406
P(Z<0.26) = 1 - P(Z<0.26)
=> 0.60257 (By rounding to 4 decimal places we get )
=> 0.6026
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Yasmin is participating in a 5-day cross-country biking challenge. She biked for 45,60,68 and 52 kilometers on the first four days. How many kilometers does she need to bike on the last day so that her average (mean) is 58 kilometers per day?
Step-by-step explanation:
The total distance biked by Yasmin on the first four days can be calculated as follows:
45 + 60 + 68 + 52 = 225 km
To find out how many kilometers she needs to bike on the last day to achieve an average of 58 km per day over the 5 days, we can set up an equation based on the formula for the mean:
(45 + 60 + 68 + 52 + x) / 5 = 58
Where x is the number of kilometers Yasmin needs to bike on the last day. Expanding the equation:
225 + x = 5 * 58
225 + x = 290
Subtracting 225 from both sides:
x = 65
So Yasmin needs to bike 65 kilometers on the last day to achieve an average of 58 kilometers per day over the 5 days
carys had some money. She brought a dirnk for £1.55 and a piece of cake for £1.30 she now has three-quarters of her money left. how much money did she have to start with?
Answer:
£11.40
Step-by-step explanation:
She spent £1.55 + £1.30 = £2.85.
Now she has 3/4 of the original amount.
That means she spent 1/4 of the original amount.
£2.85 is 1/4 of the original amount.
The original amount is 4 × £2.85.
She started with £11.40.
You can solve it by writing an equation.
She started with x.
x - 2.85 = 3x/4
x/4 = 2.85
x = 11.40
What is the place value of the 8 in 45.1386? a. Tenths
b. Tens
c. Thousands d. Thousandths
2. What is the place value of 1 in 0.5431? a. Thousands
b. Thousandths
c. Tenthousandths d. Ten thousands
3. What is the place value of 9 in 5.9105 a. Tenths
b. Tens
c. Hundredths d. hundreds
4. Whichdigithastheleastvaluein5.1896 a. 1
b. 8 c. 9 d. 6
5. Which decimal place value has the greatest value? a. Tenths
b. Hundredths
c. Thousandths
d. Ten thousandths
6. How to read and write 5.04? a. Fiveandfourtenths
b. Five and four hundredths
c. Fiveandfourthousandths
d. Five and four ten
Answer:
1. d thousandths
2. c ten thousandths
3. a tenths
4. d 6
5. a tenths
6. b five and four hundredths
Step-by-step explanation:
Which expression is equivalent to 7/32 + 2/32
Answer:
36 square root 2 also known as C
Step-by-step explanation:
Question 1
A number, w, is located to the left of 5 on the number line.
Which inequality represents this situation?
A
W> 5
B
w < 5
с
w > -5
D
w < -5
find the slope and y intercept, then write out the linear equation (y=mx+b) below
Answer:
y = 2x + 3
Step-by-step explanation:
You can find the slope on the graph by looking at the points. From one point to the next you go Up2Over1.
Up2Over1 is the slope and in actual algebra it is 2/1, which is just 2.
The slope is 2. Fill in 2 in place of m in
y = mx + b
y = 2x + b
Next the y-intercept which is the b, can also be seen on the graph. The y-intercept is where the graph crosses the y-axis. The line crosses the y-axis at 3. Fill in 3 in place of the b.
y = 2x + 3
Find Linear Functions using Graphs: y = 6x - 4
Answer:
\(x=\frac{y+4}{6}\)
Step-by-step explanation:
y=6x−4
Swap sides so that all variable terms are on the left hand side.
6x−4=y
Add 4 to both sides.
6x=y+4
Divide both sides by 6.
\(\frac{6x}{6}=\frac{y+4}{6}\)
Dividing by 6 undoes the multiplication by 6.
\(x=\frac{y+4}{6}\)
Divide y+4 by 6.
\(x=\frac{y}{6} +\frac{2}{3}\)
ANSWER:
x=1/6y + 2/3
y= 6x - 4
-
Angle A and B are vertical angles. If Angle A = (5x – 3)° and Angle B = (4x + 21)°,
then find the measure of Angle A.
Answer:
Angle A=87°
Step-by-step explanation:
(5x-3)°+(4x+21)°=180°
9x°+18°=180°
9x°+18°-18°=180°-18°
9x°=162°
9x°/9°=162°/9°
x=18°
Angle A=(5x18-3)°
(90-3)°
Angle A=87°
lan is 1.83m tall
Donna is 6cm shorter
What is Donna's height in metres?
Answer:
Step-by-step explanation:
lan is 1.83m tall. Donna is 6cm shorter. What is Donna's height in metres? 1.77m. Bath. √34°. 20m. 11m. 11x14. Work out the range. 3 8 4 8 3 5 9. 9-3=6.
Find the area of the rectangle ABCD
Answer:
180 inches
_________
Given the base is 15 inches and the height is 12 inches, solve.\(A = b * h = 15 * 12 = 180~inches\)
_________
Which equation has a solution of k = 3.5?
Answer:
an example of an equation?
if you want one step you can try
10k=35
if you want two step
10k-17=18
Step-by-step explanation:
Find the slope of the line that passes through the pair of points.
(9, 8), (7, -8)
Geometry Two column prove
Answer:
(see below)
Step-by-step explanation:
First, you know that the first statement given is Given.
Now that you have that, you want to concentrate on your goal, and that goal is to prove that ΔGHI is an isosceles. To do this, you need to prove that the two base angles or two adjacent sides are congruent.
To do this, you can prove ΔGHJ ≅ ΔIHJ first, then use CPCTC.
Because HJ is the perpendicular bisector of GI, GJ ≅ IJ. this will be under Definition of Perpendicular Bisectors because it's a line which cuts a line segment into two equal parts at 90°.
This also means that ∠GJI and ∠IJH are right angles under Definition of Perpendicular Bisectors. Do not combine the two statements.
To clarify everything, ∠GJI ≅ ∠IJH because "all right angles are congruent."
It's also clear that these two triangles share a side, so HJ ≅ HJ. This is the Reflexive Property of Congruence, stating that for any real number a, a ≅ a.
Now you can prove these two triangles congruent by the SAS Postulate.
Using CPCTC, corresponding parts of congruent triangles are congruent, GH ≅ HI.
Your last statement should be ΔGHI is an isosceles because of Definition of Isosceles Triangle. You also want to state the statement exactly as given as the question.
Your proof should look something like IMAGE.A.
Which expression is equivalent to (x^1/2 y ^-1/4 z)^-2
Answer:
x^-1 y^½ z^-2
the diagram shows 3/4 of a fraction strip shaded. Mary erases some of the shading to show 5/8. Explain in the steps the took to shade 5/8 of thr fraction strip.a. She divided the fraction strip into 3/4partsb. She converted 3/4 into a fraction with a numerator of .3/4= -/8c. -/8-5/8 = -/8 She erased. eight of the shaded areadraw a revised model to show the diagram after Mary erases the fraction of the area shown in the last step
We know that the diagram shows 3/4 of a fraction strip shaded.
Now, if Mary erases some of the shadings to show 5/8, that means she also added 4 more rectangles to have 8, then she shaded 5 of them.
Part A. She divided it by 3/4.
\(\frac{\frac{3}{4}}{\frac{3}{4}}=1\)So, at this point, she got the whole unit without divisions.
Part B.
Which is the solution to the inequality? y-272>-13
Answer:
y ≥ 14
Step-by-step explanation:
y - 27 ≥ -13
y ≥ -13 + 27
y ≥ 14
One positive number is 5 times another number. The difference between the two numbers is 1664,
find the numbers.
Answer:
i don't know i think its 20 in my opnian
Step-by-step explanation:
i don't know sorry
consider the expression\[x^2 \boxed{\phantom{00}}x 100.\] find all possible values for the missing number that make this expression the square of a binomial.
The missing number must make the expression a perfect square trinomial in the form \((a + b)^2\).
This means that the missing number must be equal to the product of the two factors outside the parentheses, minus the square of the number inside the parentheses.
In this case, the missing number must be equal to \(100x^2 - x^2, or 99x^2\).
Using the FOIL method (First, Outer, Inner, Last), we can expand \((x + x)^2 to get x^2 + 2x^2 + x^2\). Since the expression we are working with is \(100x^2 + 2x^2 + x^2\), the missing number is \(99x^2\).
Therefore, the missing number that makes this expression the square of a binomial is \(99x^2\).The missing number must make the expression a perfect square trinomial in the form \((a + b)^2\).
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An oblique cone has a height equal to the diameter of the base. The volume of the cone is equal to 18π cubic units. An oblique cone has a diameter of 2 x and a height of 2 x. The volume of the cone is 18 pi cubic units. What is the radius of the cone? 2 units 3 units 6 units 9 units
Answer:
3 units
Step-by-step explanation:
The formula for the volume of the cone is given by
\(V=\frac{1}{3} \pi r^{2}h\)
\(V=18\pi\ unit^{3} \\\\ r=\frac{2x}{2} =x\ units \\ \\ h=2x\ units\)
Substituting in above formula
\(18\pi=\frac{1}{3} \pi*x^{2}*2x\\ \\ 54=2x^{3} \\ \\ x^{3} =27\\ \\ x=\sqrt[3]{27} \\ \\ x=3\ units\)
Thus, the radius of the cone is 3 units.
Which of the following is another way to label Plane J?
Select one: Plane h Plane
ABD Plane EFG Plane ADF
Check
Plane ADF is another way to label Plane J.
In order to determine which of the given options is another way to label Plane J, we need to first identify the key characteristics of Plane J.
These characteristics are its points, lines, and planes that it contains. We can then use these characteristics to compare and match them with the given options.
Here are the key characteristics of Plane J: Points: J, A, D Lines: JA, JD, AD Planes: Plane J Now let's examine each option to see which one matches the characteristics of Plane J: Option A: Plane h This option is not a match since Plane h is not one of the planes that contain the points J, A, and D.
Option B: Plane ABD This option is not a match since Plane ABD contains points A, B, and D but not point J.
Option C: Plane EFG This option is not a match since Plane EFG contains points E, F, and G but not point J.
Option D: Plane ADF This option is a match since Plane ADF contains points A, D, and F which are all points that are contained in Plane J.
Therefore, Plane ADF is another way to label Plane J.
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Math triangle question
Answer:
The answer is 3.
16/4=4
8/4=2
12/4=3
2(cos^4 60 +sin^4 30) -(tan^2 60 +cot^2 45) +3*sec^2 30
The value of the expression \(2(cos^4 60 + sin^4 30) -(tan^2 60 + cot^2 45) + 3\times sec^2 30 is 33/4.\)
Let's simplify the expression step by step:
Recall the values of trigonometric functions for common angles:
cos(60°) = 1/2
sin(30°) = 1/2
tan(60°) = √(3)
cot(45°) = 1
sec(30°) = 2
Substitute the values into the expression:
\(2(cos^4 60 + sin^4 30) - (tan^2 60 + cot^2 45) + 3sec^2 30\)
= \(2((1/2)^4 + (1/2)^4) - (\sqrt{(3)^2 + 1^2} ) + 3(2^2)\)
= 2(1/16 + 1/16) - (3 + 1) + 3*4
= 2(1/8) - 4 + 12
= 1/4 - 4 + 12
= -15/4 + 12
= -15/4 + 48/4
= 33/4
Therefore, the value of the expression \(2(cos^4 60 + sin^4 30) -(tan^2 60 + cot^2 45) + 3\times sec^2 30 is 33/4.\)
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In circle C, what is mArc F H?
31°
48°
112°
121°
Answer:
B. 48
Step-by-step explanation:
just took the test <3
Answer:
mArc FH = 48
Step-by-step explanation: