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IgorLugansk [536]
3 years ago
8

The question that is asked

Mathematics
1 answer:
antoniya [11.8K]3 years ago
7 0
The answer is A because 157 is to wide because it’s smaller then 23.
You might be interested in
4) A garden is in the shape of a square with a perimeter of
Leni [432]

Answer:

It costs $154.88 to build the fences.

Step-by-step explanation:

Perimeter of square = 4 \times Side

We are given that A garden is in the shape of a square with a perimeter of  56 feet.

So,4 \times side = 56

Side =\frac{56}{4}=14 feet

So, Side of square park = 14 feet

One fence is around the perimeter of the garden, whereas the second fence is 2 feet from the first fence on the outside.

Outer length = 14+2+2=18 feet

So, Perimeter of outer fence = 4 \times side = 4 \times 18 = 72 feet

Cost of fencing 1 foot = $1.21

Cost of fencing 56 feet =56 \times 1.21=67.76

Cost of fencing 72 feet = 72 \times 1.21=87.12

Total cost = 67.76+87.12=154.88

Hence It costs $154.88 to build the fences.

7 0
2 years ago
What are the two solutions of 2x2 = –x2 – 5x – 1?
77julia77 [94]

Answer:

The answer is

<h3>x =  \frac{ - 5 +  \sqrt{13} }{6}  \:  \:  \:  \: or \:  \:  \: x  =  \frac{ - 5 -  \sqrt{13} }{6}</h3>

Step-by-step explanation:

2x² = - x² - 5x - 1

<u>Rearrange the terms and simplify</u>

That's

2x² + x² + 5x + 1 = 0

3x² + 5x + 1 = 0

Using the quadratic formula solve the equation

That's

<h3>x =  \frac{ - b\pm \sqrt{ {b}^{2}  - 4ac} }{2a}</h3>

From the question

a = 3 , b = 5 , c = 1

So we have

<h3>x =  \frac{ - 5\pm \sqrt{ {5}^{2} - 4(3)(1) }}{2(3)}  \\  =  \frac{ - 5\pm \sqrt{25 - 12} }{6}  \\   = \frac{  - 5\pm \sqrt{13} }{6}</h3>

We have the final answer as

<h3>x =  \frac{ - 5 +  \sqrt{13} }{6}  \:  \:  \:  \: or \:  \:  \: x  =  \frac{ - 5 -  \sqrt{13} }{6}</h3>

Hope this helps you

4 0
3 years ago
12 points!
givi [52]
Monday he sends it to 3 friends. Those three friends send it each three times. Friend 1 =3 F2=3 F3=3. So, on Tuesday a total of 3 people received it. By Wednesday a total of 12 people received it. for the Thursday each of them had sent 3 more which totals out to 39 people that had received the email from him. 

The answer should be 39
5 0
3 years ago
Ms.Friedman and Mrs.Elliot both teach sixth grade math. They share a storage closet. What is the total area of both rooms and th
Citrus2011 [14]
Answer:
Total area of both rooms and the storage = 2844 ft^2

Explanation:
Total area would initially be the summation of the area of Ms. Friedman's room and storage added to Mrs. Elliot's room and storage.
However, we are given that the storage is shared.
So now, the total area would be equal to Ms. Friedman's room and storage + Mrs. Elliot's room and storage - area of closet

Now, we can notice that:
Ms. Friedman's room and storage = Mrs. Elliot's room and storage

Therefore:
Total area = 2*Ms. Friedman's room and storage - area of storage

1- getting area of Ms. Friedman's room and storage:
length = 36 ft 
width = 40 ft
area of Ms. Friedman's room and storage = length * width
area of Ms. Friedman's room and storage = 36 * 40
area of Ms. Friedman's room and storage = 1440 ft^2

2- getting area of closet:
length = 36 - 30 = 6 ft
width = 40 - 34 = 6 ft
area of closet = length * width
area of closet = 6 * 6 = 36 ft^2

3- total area of both rooms and the storage:
Total area = 2*Ms. Friedman's room and storage - area of storage
Total area = 2*1440 - 36 
Total area = 2844 ft^2

Hope this helps :)

8 0
3 years ago
Luciana is adding water to a pool at a constant rate. Before she added any water
DENIUS [597]

Answer:

The rate of change would be zero?

Step-by-step explanation:

7 0
3 years ago
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