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Kipish [7]
2 years ago
10

Will mark brainliest, 60 points

Mathematics
1 answer:
il63 [147K]2 years ago
8 0

Answer:

21 C

22 B

23 169

Step-by-step explanation:

21 3m mean 3 times a certain number

22 the negative make the 4 go negative and the -5 positive

23 i did 5^2-4^2= 9

then 6^2 divided by 9+9= 13 i took the 9 from the 5^2 problem then divided it by 6^2

then 13 x 13 = 169

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3. Which side in ΔFED does AC in ΔABC correspond to?
Dahasolnce [82]

Answer:

step by step below

Step-by-step explanation:

3. AB --> EF  (53°)

   BC --> DE  (37°)

   AC --> DF (90°)

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5. DE = 2 x CB = 6

6. FD = √6²+8² = √100 = 10

8 0
2 years ago
Select the GCF of these numbers.<br><br> 48 and 60
LekaFEV [45]

Using Euclid's algorithm, the first number you check is their difference:

60 - 48 = 12

Since 12 divides both numbers evenly, that is your GCF.

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If the difference does not divide both numbers evenly, you can repeat the procedure with the difference and the remainder from dividing the smallest of the other numbers by the difference. For example, ...

GCF(60, 44) = GCF(44 mod 16, 16) = GCF(12, 16) = 4

4 0
3 years ago
Nathena needs to buy a fence to put around her rectangular yard for her dog. Nathena forgot the width of his yard, but knows the
BabaBlast [244]

Answer:

The real answer is 6

Step-by-step explanation:

Fairly simple. You know the length and the area, but you don't know the width. So your equation looks like this: 30 x ? = 180. But to figure out the width, you change the position of the numbers in the equation like this:

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Hope this helps!

7 0
3 years ago
Read 2 more answers
PLEASE HELP!!! 50 POINTS!!! BRAINLIEST FOR FASTEST!!!
IRISSAK [1]
-20- -10=-10
l10l
I hope it’s correct
6 0
3 years ago
Read 2 more answers
5.) - 7(-2x - 9) = 133<br> how do you solve this
Ray Of Light [21]

Answer: x= 5

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4 0
3 years ago
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