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dedylja [7]
3 years ago
12

A bulletin board is 23 square feet. What is the approximate perimeter of the bulletin board? And wants to have an area of 32 squ

are feet. About how many feet of fencing would he need? A window is a square and has an area of 15 square feet. About how many feet of wood is needed to frame the window? A frame is 2 inches thick. The area of the picture and frame together is 121 inches. What is the length if the picture? What is the are of the picture? 10 POINTS FOR EACH ANSWER!!
Mathematics
2 answers:
miskamm [114]3 years ago
5 0

Answer: The answer to the first question is 20

Step-by-step explanation:

Dafna11 [192]3 years ago
5 0

Answer: The answer to the first question is 20

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2 pts
DerKrebs [107]

Answer:

It's number one.

Step-by-step explanation:

This is because all the other answers are opinions, like the most attractive color one. Everyone has a different favorite color. But number one is something that can be proved. That's what you're looking for in the scientific method.

4 0
3 years ago
Math question quadratics
denpristay [2]

Answer: The length and width are 50 and 30 meters (or 30 and 50 meters).

Step-by-step explanation:

To solve this question, we can represent variables for the length and width in two equations.

2l + 2w = 160\\\\l * w= 1500

To solve for one of the variables, you'll have to substitute one of the variables, so solve for one of them:

2l = 160 - 2w\\l = 80 - w

(80-w)*w=1500\\\\-w^2 + 80w - 1500 = 0\\\\w^2 - 80w + 1500 = 0

Now, we have a standard quadratic equation that we can factor. When factoring, you'll get this:

(w-50)(w-30) = 0

This tells us that the width could be either 50 or 30.

Substitute 50 into one of the equations to find the length:

2 (l) + 100 = 160

l = 30.

The length and width are 50 and 30 meters (or 30 and 50 meters).

4 0
3 years ago
Read 2 more answers
Select the student who reads the fastest (greatest number of words per minute)
kirill115 [55]
Im pretty sure it would be Ariel.
Tamar reads 600 words in 5 minutes, so he is already out of the question since Levi reads 700 words in 5 minutes. (Levi reads 140 words in 1 minute, so add 140+560=700 because they read 560 in 4 minutes)
So I think it’s Ariel because in 4 minutes she reads 600, and where the 5 would be, if you go straight up, it’s over 700 (if i had to guess, 750 since it’s counting by 100s and it would be in the middle of 700 and 800)
7 0
2 years ago
Or what value of x does 4x=(1/8)^x+5?<br> –15<br> –3<br> 3<br> 15
liq [111]

Answer:

<h2>x = -3</h2>

Step-by-step explanation:

4^x=\left(\dfrac{1}{8}\right)^{x+5}\qquad\text{use}\ a^{-1}=\dfrac{1}{a}\\\\4^x=(8^{-1})^{x+5}\\\\(2^2)^x=\bigg((2^3)^{-1}\bigg)^{x+5}\qquad\text{use}\ (a^n)^m=a^{nm}\\\\2^{2x}=2^{-3(x+5)}\iff2x=-3(x+5)\qquad\text{use the distributive property}\\\\2x=-3x-15\qquad\text{add}\ 3x\ \text{to both sides}\\\\5x=-15\qquad\text{divide both sides by 5}\\\\x=-3

3 0
3 years ago
What do you do when a dog is ceying
Ugo [173]
You mean crying? 

Well, there's a wide range of reasons why the dog is whimpering.
I'd personally contact a vet or do some research. 
Although, it may be anxiety or somethiing.
6 0
3 years ago
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