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stira [4]
3 years ago
10

What’s number 12 through 15 pls I need this ASAP

Mathematics
1 answer:
galben [10]3 years ago
8 0

Answer:

12. 9

Step-by-step explanation:

12. Using Pythagoras theorem

let shortest distance be = x

8 square + 5 square = x square

64 + 25 = x square

89 = x square

Therefore x = square root of 89

Thus X = 9

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A puppy store has a puppy that weighs 72 ounces how many pounds does it weigh 1 pound = 16 ounces
tresset_1 [31]

4.5 pounds

72 ounces


HOW-TO:

1. we know that 1 pound is 16 ounces.

So let's find how many of 16 are needed for 72.

72 ÷ 16 = 4.5

Use that answer and multiply it by the number of pounds per 16 ounces.

You get 4.5 pounds.

4 0
4 years ago
Natalie has 28 erasers. She divided some of her erasers equally among 3 friends. Natalie has 10 erasers left. How many erasers d
Korvikt [17]
Hey there! :D

Subtract 10 from 28. 

28-10= 18

Now, divide that by 3. (for her three friends) 

18/3= 6

Each friend got 6 erasers. 

I hope this helps!
~kaikers
8 0
4 years ago
Read 2 more answers
(sinA +cosA)2 + (sinA-cosA)2=2<br>​
cluponka [151]

Answer:

2SinA=1

Step-by-step explanation:

Distrubite the 2 in the persenthesis

simplify

factor and you get this

8 0
3 years ago
Calculate the length of the circumference of a circle with diameter of 9cm
tresset_1 [31]
Hello!

We must use a certain formula to find the circumference of a circle. The formula is:

C = 2 × pi × r

We have the diameter of the circle, so we'll be able to find its radius, since radius is always half the diameter.

r = d ÷ 2

r = 9 ÷ 2

r = 4.5

So, the radius of the circle is 4.5 centimetres. Pi equals approximately 3.14. Substitute:

C = 2 × 3.14 × 4.5

C = 6.28 × 4.5

C = 28.26

ANSWER:

The circumference of the circle is 28.26 centimetres long.


8 0
3 years ago
Find the value of in each of the following x/5+1=5
Alisiya [41]
X is 20 because 20/5 is 4 n 4+1=5
5 0
3 years ago
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