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Flauer [41]
3 years ago
12

Help me please. Very much appreciated​

Mathematics
1 answer:
olya-2409 [2.1K]3 years ago
4 0

Answer:

63mm

Step-by-step explanation:

7mm+8mm=15.

15×15=225

12×12=144(area equals base times height) add 225-144=81(here we are using the Pythagoras theory) so you search for the square root of 81 which is 9 meaning the height is 9. since we say area is 1/2base times height we should take 1/2 ×9×12=63.if the answer doesn't match with the answer in your book please tell me right away so that I can try another method thank you

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48=56+8b solve for b
nata0808 [166]

Answer:

b= -1

Step-by-step explanation:

48         =.    56 +8b

-56             -56

---------------------------------

-8       =   8b

Divide 8 on both sides

-1=b

4 0
3 years ago
Read 2 more answers
I have no idea. Please I need just answers. Thank you. ​
igomit [66]

Answer:

Step-by-step explanation:

1km = 1000m

5a. 5.768km = 5768m = 57.7m

5b. 9.039km = 9039m = 90.4m

5c. 8.48km = 8480m = 84.8m

5d. 17.685km = 17685m = 17.7m

5e. 17.658km = 17658m = 17.7m

To round to the nearest 100m just divide by 100 and then round it off. like 57.68=57.7m because 8 is more than 5 so 6 becomes 7 to one decimal.

Rule is applied for all the other questions too.

3 0
3 years ago
Gabbys age is two times mikhails age.the sum of their ages is 75. What is mikhails age
Tatiana [17]

Answer:

Mikhail's age is 25 years old

Step-by-step explanation:

Let's make an equation: Say Mikhail is x, so Gabby would be 2*x=2x

If the sum of their ages equals 75, then x+2x=75, and x=2x=3x, so 3x=75.

75/3=25

6 0
3 years ago
SOMEONE PLEASE HELP ME ASAP
Alenkinab [10]
The answer to this question is C I just worked it out on paper using a calculator

5 0
3 years ago
Read 2 more answers
Helpppppppppppp please give me the answer
Romashka [77]

10/12 in simplest form is 5/6.

Equivalent ratios would be 15/18, 20/24, and 25/30.


The rest is easy, give it a try.

6 0
3 years ago
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