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Leviafan [203]
3 years ago
7

I don't understand it​

Mathematics
2 answers:
Alenkasestr [34]3 years ago
4 0

Answer:

Understand what??

.

Lostsunrise [7]3 years ago
3 0

Answer:

i don t now the answer sorry

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Brock exercises every day. The function E = 15m + 5 represents the number of sit-ups he can do in m minutes. After drinking a ne
adoni [48]

Answer:

S=45m+15

Step-by-step explanation:

we have

E------>the number of sit-ups

m---->  the time in minutes

S----> the number of sit-ups after drinking the sports drink

E=15m+5 ----> equation A

S=3E ----> equation B

substitute the equation A in the equation B

S=3(15m+5)

S=45m+15

7 0
2 years ago
4. Determine all unknown sides and angles to 1 decimal place.
Ksju [112]

Answer:

The unknown sides are 60.81cm and 51.57cm while the unknown angle is 58degrees

Step-by-step explanation:

4a) Given the following

Opposite side = 38cm (side facing the given angle)

Required

Adjacent and hypotenuse side

According to SOH CAH TOA

tan \theta = \frac{opp}{hyp}\\tan 32=\frac{38}{hyp}\\hyp=\frac{38}{tan 32}\\hyp=\frac{38}{0.6249}\\hyp=  60.81cm

Next is to get the adjacent

Cos 32=\frac{adj}{60.81}\\adj=60.81cos32\\adj=60.81(0.8480)\\adj= 51.57cm

Next is to get the missing

Since sum of angle in the triangle is 180degrees

32 + 90 + x = 180

122 + x = 180

x = 180 - 122

x = 58degrees

7 0
3 years ago
What is the midpoint
Tamiku [17]
Midpoint formula:

x, y = (x2+x1/2), (y2+y1/2)

x, y= (3+8/2), (4-4/2)

x, y= (5.5), (0)

Therefor the midpoint is (5.5, 0)

Hope I helped :)
7 0
3 years ago
Christina biked 36 miles in 6 hours. If she biked at a constant speed, how many miles did she ride in one hour?
Ahat [919]

Answer:

6

Step-by-step explanation:

because you divided the amount of mile by the amount of time it took to get your answer

5 0
2 years ago
Read 2 more answers
The expression 2l 2w is used to find the perimeter of a rectangle with length l and width w. what is the perimeter of a rectangl
AnnyKZ [126]
Just plug the values into the equation and solve

3 0
3 years ago
Read 2 more answers
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