Mathematics College

help i cant do fractions

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Answer 1

I’m pretty sure the answer is x= -48

Related Questions

Need Help Geometry Question I will give brainliest

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I wanna point sifr soc

can someone please help find the value of x? i didn’t do it right :(

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Answer:

Step-by-step explanation:

cos(20°) = (14/2)/x

x = 7/cos(20°) ≈ 7.45

Let's assume our class is truly representative of the population at large. (a) Calculate the probability of having three right handed people in a sample of 10. Do this using R. (b) repeat, but this time calculate the probability of 3 or less right handed people in a sample of 10.n=17 right handed= 15 left handed=2

Answers

Answer:

0.1171875;

0.171875

Step-by-step explanation:

It is either a person is right handed or left handed

P(right handed) = 1/2

Probability of having 3 right handed people in a sample of 10 ;

P(x =x) = nCx * p^x * (1 - p)^(n - x)

P(x = 3) = 10C3 * 0.5^3 * 0.5^7

P(x = 3) = 120 * 0.125 * 0.0078125

P(x = 3) = 0.1171875

Using R ;

P(x ≤ 3)

We can obtain these from R using ;

pbinom( r, n, p)

pbinom(3, 10, 0.5) = 0.171875

Which statement about the area of a right triangle is true?
F :The area formula for a right triangle is the base times the height because a rectangle can be
divided into two right triangles.
G: The area formula for a right triangle is the base times the height because a right triangle
can be divided into two rectangles.
H: The area formula for a right triangle is one-half of the base times the height because a
rectangle can be divided into two right triangles.
J: The area formula for a right triangle is one-half of the base times the height because a right
triangle can be divided into two rectangles.

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Answer:

Step-by-step explanation:

This is because a rectangle can be divided into two triangles.

45 is what percentage of 150? A. 0.3% B. 3% C. 30% D. 35%

Answers

Answer:

C. 30%

Have a great day! Good luck.

Answer:

C. 30%

Step-by-step explanation:

All you have to do is 45/150 to get the answer. Simplify that and get 3/10 which is also equal to 30%.

Hope this helps you

Is this a rectangular prism or a triangular prism

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Answer:

I think it may be a rectangular prism

Step-by-step explanation:

it looks like one

hope it helped

The school park has a circular pond with a radius of 4 yards. What is the pond's diameter?

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Answer:

The diameter of the pond is 8.

Step-by-step explanation:

Diameter formula d = 2r

So d = [tex]2*4[/tex]

d = 8

Answer:

the answer is 8

Step-by-step explanation:

so 4r x 2=8d

2(4r)=8d

PLEASE HELP!!! use the pic to understand the question

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Answer:

this is confusing. I'll try my best to sort it out for you. I'll tap in once I figure it out

Match each fraction on the left with the corresponding percent on the right. Some options on the right will be used more than
once.

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Answer:

no picture

Step-by-step explanation:

What is the value of x
15x + 1=46
Help plz
I will give brainliest

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Answer:

Step-by-step explanation:

Answer:

The answer to this question is X=3

Step-by-step explanation:

15x3=45

45+1=46

Hope my answer helps you!!!

Maria tests the effectiveness of an anti-depression drug by recruiting 500 participants and randomly assigning half e participants to take Drug A for 1 month and the other half to take a placebo for 1 month. At the end of the month, depression levels are recorded. Overall, participants who received Drug A had depression scores of M-32.12, SD- 10.58 and those you received the placebo had depression scores of M- 34.29. SD 11.10, t(498) 2.17,p .01 (one tailed], d19. Faced with these data, Maria needs to write a report in which she interprets the data. Which of the following is the best summary of these data?
A. The p value is very small, showing that there is only a 1% chance of a Type l error. we can be 99% confident that the drug significantly reduces depression.
B. The results of the t-test are significant, but the effect size is small. This study should be replicated with a larger sample size to increase statistical power.
C. The results of the t-test are significant, but the effect size is small. The drug does lower depression, but it is not clear if the reduction is enough to warrant use of the drug.
D. The small p value and the small effect size suggest that the observed difference between the drug adplacebo groups are likely to be due to sampling error. This study should be replicated with a larger sample size.

Answers

Answer:

D. The small p value and the small effect size suggest that the observed difference between the drug placebo groups are likely to be due to sampling error. This study should be replicated with a larger sample size.

Step-by-step explanation:

The p value is determined for any test before making a conclusion. If the p-value is smaller than critical value then we reject the null hypothesis which means that drug is not effective for the reducing depression. A very small p-value usually lesser than 0.05 indicates strong evidence against the null hypothesis.

I’m so stuck please help smart people ahahah

Answers

Answer:

Merit.

Step-by-step explanation:

To find the percentage that Sasha got, you can find the score out of the total score and multiply that by 100%.

Percentage = [tex]\frac{62}{80}[/tex] × 100%

= 77.5%

Since 77.5% falls in the Merit zone, Sasha got a merit in her music exam.

Find parametric equations for the curve with the given properties.
The line with slope 1/2, passing through (1, -4)

Answers

Answer:

y = 1/2x -9/2

Step-by-step explanation:

y+4 = 1/2(x-1)

y = 1/2x -1/2 - 4

y = 1/2x + (-1-8)/2

y = 1/2x -9/2

Find the solution to the system of equations.
3x + 2y - 4z= 3
3
x - 4y + 2z= -11
2x + y - 2z = 2
A. x = 3, y = 2, z = 4
B. x = 1, y = 4, z = 2
O C. x = 6, y=-3, z = -4
O D. x= 1, y = 6, z = 2

Answers

Answer:

[tex]x = 1 \\ y = 4 \\ z = 2[/tex]

The solution to the system of equations is x-1, y = 4 and z= 2.

What is Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

We have the equation

3x + 2y - 4z = 3

x -4y +2z = -11

2x + y + 2z = -11

Solving the above equation we get

3x + 2y - 4z - 3x + 12y + 6z = 3 + 33

14y + 2z = 36

and, 2x - 8y + 4z - 2x - y - 2z = -22 + 11

-9y + 2z = -11

So, y =4 and z = 2

and, x = 1

Learn more about Equation here:

https://brainly.com/question/29657983

#SPJ5

Identifica el cuadrante en el cual se encuentra el ángulo 2.200

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Answer:your

Step-by-step explanation:

mom

Identify the quadrant in which the angle is 2,200 what

what is 1 times 89what is 1 * 17

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Answer:

1 times 89 = 89 lol 1 x 7= 7

Step-by-step explanation:

hope this helps lol

Sammy counts the number of people in one section of the school auditorium. He counts 18 female students, 16 male students, and 6 teachers. There are720 people in the auditorium. Consider the probability of selecting one person at random from the auditorium.

Which of these statements are true? Choose all that apply.

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I can't see the statements

20 PTS HELP PLEASE !!!!!!

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the answer is c i have don’t that before

A bouncy ball is dropped such that the height of its first bounce is 6.75
feet and each successive bounce is 68% of the previous bounce's
height. What would be the height of the 6th bounce of the ball? Round
to the nearest tenth (if necessary).

Answers

Step-by-step explanation:

0,4 ft

It can be convinient to let a spreedsheet compute the values for you

Here we have written an expiliclit formula for the height of the 9th bounce

H= 5.5 x 0.64'(n-1)

We have written the formuka this way beacause we are given the height of the firrrst bounce not the satrting height so as you see each bounce multiples the height by a factor of 0,64 then the 7th bounce will be

H= 5.5 x 0.64'6 = 0.378 = 0,4 feet

Hope it helps

Answer: 1

Step-by-step explanation:

Si a y b son los catetos de un triángulo y c su hipotenusa determina el lado que falta a= 16,b=34*

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Answer:

the aswer is b

Step-by-step explanation:

Is this function odd?

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Answer:

I'm afraid, we can't see the function

Step-by-step explanation:

Answer:

what function???? there's nothing there to look at

5/8(64−96) simplify

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☁️ Answer ☁️

-20

Hope it helps.

Have a nice day noona/hyung ￣▽￣

find the y - intercept of the graph

Answers

Answer:

Step-by-step explanation:

yes that is correct!-2

if f(x)=5x-7,what isf(3)?

Answers

Answer:

Explanation:

f ( − 3 ) basically means substitute − 3 for x in the function − 5 x

(

−

)

−

(

−

)

−

(

−

)

−

(

−

)

Step-by-step explanation:

Ky wants to buy three shirts, which were originally priced at $49.96 each. The store will discount the price of the 3rd shirt by 50% off and apply a %7.1 tax to the total cost of all three shirts. Including the tax, what will be the mean cost of each shirt?

Answers

9514 1404 393

Answer:

$44.49

Step-by-step explanation:

The total cost before tax will be ...

$49.96 +49.96 + 0.50(49.96) = $124.90

With tax added, the cost is ...

$124.90 × 1.071 = $133.77

Then the average cost per shirt for the 3 shirts is ...

$133.77/3 = $44.59

The mean cost of a shirt is $44.59.

Answer:

the answer is $44.49

Step-by-step explanation:

:))

If a computer were to pick a letter at random from the word MATHEMATICS, what is the probability that it would choose the letter M? Make sure your answer is in fraction form and use the (/) key to make it a fraction. Make sure there are no spaces in your answered and reduce if possible

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HOPE IT HELPS BUD

[tex]

Total \: number \: of \: letters \: M \: = \: 2 \\

\\ Total \: number \: of \: letters \: or \: outcomes \: = \: 11 \\

Probability \: of \: getting \: M \: = \: 112

[/tex]

Answer:

A letter is chosen at random from the word 'MATHEMATICS, the probability of getting the letter M is 2/m.

What is the inequality that would represent: The sum of two numbers is
less than 4?*

Answers

Answer:

x+y<4

Step-by-step explanation:

Answer:

x+y<4

Step-by-step explanation:

let the numbers be x and y

x+y<4

x-y>1

Which of the following expressions is equivalent to 3x−2x+5?

Answers

I think the answer should be the second one (b)

Answer:

Step-by-step explanation:

The graph of linear function k passes through the points (-3, 0) and (1, 8).
Which statement must be true?
what’s the answer?

Answers

Answer:

-3,0

Step-by-step explanation:

What are the solutions to (x + 7)2 = 81?
A −74 and 88
B −2 and 16
C −88 and 74
D −16 and 2

Answers

Answer:

the solutions are c because, when we say x +7=81 that will give us 74 which is there on c

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