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pentagon [3]
3 years ago
14

Item 15

Mathematics
1 answer:
Shtirlitz [24]3 years ago
8 0

Answer:

28

Step-by-step explanation:

4*7= 28

when there is a variable (letter next to the number) next to the number like 4a it means 4 multiplied by a. since a is 7, 4 multiplied by 7 is 28.

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Corey wants to estimate the height of the statue of Stephen F. Austin in Angleton, Texas. He stands approximately 19.3 feet away
aniked [119]

The statute is about 80 feet tall

<h3>Similar triangles;</h3>

In order to get the height of the statute, we will need to get the base of the bigger triangle using the similarity theorem of triangles as shown:

B/19.3 = 19.3/5

5B = 372.49

B = 372.49/5

B = 74.498

<h3>Get the height of the status</h3>

The height of teh status = B + 5

Height of the status = 74.498 + 5

Height of the status = 79.498

Hence the statute is about 80 feet tall

Learn more on similar triangles here: brainly.com/question/2644832

7 0
3 years ago
recipe for sparkling grape juice calls for 5/8 quarts of sparkling water and 1/5 quarts of grape juice how much sparkling water
ohaa [14]

You would need 18 3/4 quarts of sparkling water.

3 0
3 years ago
Solve the following quadratic equation for all values of x in simplest form. 7+2x^2=11​
ollegr [7]

Answer:

x=-\sqrt2\text{ or } x=\sqrt2

Step-by-step explanation:

We have:

7+2x^2=11

To solve, we will isolate the x variable. Therefore, subtract 7 from both sides:

2x^2=4\\

Divide both sides by 2:

x^2=2

Take the square root of both sides. Since we’re taking an event root, we will need plus/minus. Therefore:

x=\pm\sqrt2

Therefore, our solutions are:

x=-\sqrt2\text{ or } x=\sqrt2

6 0
3 years ago
In the paper drive, 4 boys brought old papers to school as follows: Fred, 30 pounds; Albert, 40 pounds; Henry, 10 pounds; and Pe
seraphim [82]
B: 30 pounds is the correct answer
5 0
3 years ago
Read 2 more answers
3/5 divide by 5/9 please help
klemol [59]
First of all you flip around the last fraction:
5/9 to 9/5

Then you multiply the top and the bottom number:
3*9/5*5 = 27/25 = 1.08

Hope this helps! :)
3 0
3 years ago
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