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2 years ago

15

the relative frequency of getting a head when tossing a coin is 3/8 how many heads would you expect if the coin is tossed 400 ti

mes

1 answer:

Olenka [21]2 years ago

5 0

Around 150 times my dude

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The perimeter of a garden is 88 feet. The length is 12 feet greater than the width. What are the dimensions of the garden

valina [46]

Answer: length = 28 feet

Width = 16 feet

Step-by-step explanation:

Let L represent the length of the rectangular garden.

Let W represent the width of the rectangular garden.

The formula for determining the perimeter of a rectangle is expressed as

Perimeter = 2(L + W)

The perimeter of a garden is 88 feet. This means that

2(L + W) = 88

Dividing through by 2, it becomes

L + W = 44 - - - - - - - - - - - -1

The length is 12 feet greater than the width. This means that

L = W + 12

Substituting L = W + 12 into equation 1, it becomes

W + 12 + W = 44

2W + 12 = 44

2W = 44 - 12

2W = 32

W = 32/2

W = 16

L = W + 12 = 16 + 12

L = 28

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3 years ago

I’m in break out rooms and it’s so awkward, and no ones talking. Can someone help me?

Rina8888 [55]

Answer:

why did you delete my answer??????

Step-by-step explanation:

6 0

3 years ago

Hey please help, thank you!!

marin [14]

Answer:

D

Step-by-step explanation:

So we have the equation:

$A=\frac{1}{2}(12)(3+7)$

And we want to find out which of the answer choices is <em>not</em> equivalent.

Thus, let's go through each of the choices.

A)

We have:

$\frac{12(3+7)}{2}$

This is correct.

Our original equation can be written as:

$A=\frac{1}{2}(\frac{12(3+7)}{1})$

And if we multiply straight across:

$A=\frac{12(3+7)}{2}$

We'll get choice A. So choice A is correct.

B)

We have:

$6(3+7)$

This is also correct.

From our original equation:

$A=\frac{1}{2}(12)\cdot(3+7)$

If we multiply the first term together:

$A=6(3+7)$

We'll get choice B. So, choice B is correct.

C)

We have:

$0.5(12)(10)$

This is correct as well.

If we reduce 1/2 to decimal form and add the operations within the parentheses in the original equation, we will get:

$A=\frac{1}{2}(12)(3+7)\\A=0.5(12)(10)$

So, C is also correct.

D)

We have:

$\frac{12}{2}\times\frac{10}{2}$

Note that this is not correct.

This attempted to use the distributive property. However, the distribute property does <em>not work</em> for multiplication. For instance:

$3(2+1)\text{ indeed equals } 3(2)+3(1)$

However:

$3(2\times1)\text{ does not equal} 3(2)\times3(1)$

So, choice D is not equivalent.

So choice D is our answer :)

If we evaluate it, we will get 30, in contrast to the 60 of the others.

5 0

3 years ago

A 45 degree sector has an area of 13.75picm2, what is the area of the circle?

Lina20 [59]

There are 360 degrees in a circle so here its

(360/45) * 13.75 pi = 110pi cm2 Answer

7 0

3 years ago

Find x and y for question 4, find x, y, and z for question 6

djyliett [7]

Start by finding x. Look at the second parallel line; you have a straight line that is made up of a 90 degree angle, 2x, and x.

Since a straight line is 180 degrees, and you know a part of it is already 90 degrees, you can make 2x and x add up to 90 degrees.

2x + x = 90, combine like terms.

3x = 90, divide both sides by 3.

x = 30

Find y next. 2y and x are on opposite sides of the transversal and make a Z shape, so they must be alternate interior angles. The alternate interior angle theorem states that these types of angles are congruent.

We know what x is, 30 degrees, so make 2y and x equal to each other.

2y = 30, divide both sides by 2.

y = 15

Find z. Same thing as the bottom parallel line; 2y and z make up the straight line so they must add up to 180 degrees. We found y was 15, so multiply y by 2. y = 30, so make 30 + z add up to 180 degrees.

30 + z = 180, subtract 30 from both sides.

x = 150

6 0

2 years ago