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Elena L [17]
3 years ago
12

Help please I need help

Mathematics
1 answer:
xz_007 [3.2K]3 years ago
6 0

Answer:

21/29

Step-by-step explanation:

adjacent/hypotenuse

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Estimated the sum. 523+295
Ghella [55]
The answer is 820 (520+300)
5 0
3 years ago
Read 2 more answers
-4(a+3)+8-3(2a-8)=30
USPshnik [31]
If you’re solving for a... subtract the 8 to the other side so...
-4(a+3)- 3(2a-8) = 22.
Distribute the -4 and -3 into the parentheses (two negatives multiplied together is a positive)...
-4a-12-6a+24 = 22.
Add the constants and a’s together.
-10a + 12 = 22
Subtract 12 to the other side.
-10a = 10
Divide both sides by -10.
a = -1
Check and make sure that this answer works with the problem.
-4(-1+3)-3(-2-8)=22
-4(-2)-3(-10)=22.
-8+30=22.
22=22, the answer checks out
8 0
3 years ago
PLZ Answer I will mark brainiest
IRISSAK [1]
The correct answer would be B
5 0
3 years ago
Read 2 more answers
Janae was vacuuming the narrow hallway in her house. She went 5 feet forwards in the first 4 seconds, then went 3 feet backwards
Ganezh [65]

Answer:

60 seconds

Step-by-step explanation:

Hi!

After she goes forward 5 feet (4 seconds), and the backwards 3 feet (another 4 seconds), the total distance forward she travelled is 2 feet. Then, she moved forward 2 feet in 8 seconds.

Then, as this is repeated, she moves forward 2 feet every 8 seconds. After 7 repetitions she travelled 14 feet, and 56 seconds elapsed. Then she goes forward 5 feet in 4 seconds, and she finaly reaches  the end of the hallway

(14 +5 > 15)

So, in 60 seconds she reached the end of the hallway.

4 0
3 years ago
CAN SOMEONE PLEASE HELP ME WITH MY MATH !!!​ ​
ZanzabumX [31]

Step-by-step explanation:

We can calculate the value of y by using the Euclidean theorem

y^2 = 20 × 4

y^2 = 80

y = 4√5

6 0
3 years ago
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