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Oksi-84 [34.3K]
3 years ago
13

(: IF U HELP ME U WILL GET POINTS, A STAR AND A THANK YOU AND U WILL ALSO GET BRAINLIST! (MATH) :)

Mathematics
2 answers:
kumpel [21]3 years ago
6 0

Answer:    

Step-by-step explanation:

Tems11 [23]3 years ago
5 0
Answer: B. 14^2
.............
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HEEELP MEEEE FIND THE CIRCUMFERENCE
Alex Ar [27]

Answer: 56.52

Step-by-step explanation:

4 0
3 years ago
What is step 2 in the problem-solving process?
s344n2d4d5 [400]
Read the problem.
Write down the facts and figures.
Find a relationship between what is given and what must be found.
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6 0
3 years ago
Read 2 more answers
A triangular pyramid and its net are shown. Rain uses Calculations below to conclude that the surface area of a triangular pyram
Harman [31]

Answer:

Rain is correct, calculates correctly, 238.5 square inches

Step-by-step explanation:

The given triangular pyramid is shown with the dimensions.

The surface area of the triangular pyramid is given by :

$A=\frac{1}{2}\left(a \times b\right) + 3\left(\frac{1}{2}\times b\times s\right)$

$A=\frac{1}{2}\left(10 \times 8.7\right) + 3\left(\frac{1}{2}\times 10\times 13\right)$

$A=43.5+(3\times 65)$

$A=43.5+195$

$A=238.5 \ \text{inche}^2$

Therefore, the surface area of the triangular pyramid is = 238.5 square inches.

5 0
3 years ago
Janelle has 4 hours to spend training for an upcoming race. She completes her training by running full speed the distance of the
natima [27]
If the amount of time taken to go said distance is x and the amount of time taken to go back said distance is y, then the amount of miles total is 7x+3y due to that for every hour, she adds 7 miles when going there and 3 miles for walking back. In addition, since the total amount of time is 4 hours, x+y=4 as the total time spent as well as 7x=3y due to that they're the same distance. 
x+y=4
7x=3y
Dividing the second equation by 7, we get x=3y/7. Plugging that into the first equation, we get 3y/7+y=4=10y/7 (since y=7y/7). Multiplying both sides by 7 and then dividing both by 10, we get 28/10=2.8=y in hours. Since 0.1 hours is 60/10=6 minutes, and 0.8/0.1=8, 6*8=48 minutes=0.8 hours, meaning that she should plan to spend 2 hours and 48 minutes walking back 

8 0
3 years ago
Answer quick plsssssssssss thx
pentagon [3]

Answer:

I think Substitution

Step-by-step explanation:

Because x is already solved for in the second equation.

6 0
2 years ago
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