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gogolik [260]
3 years ago
11

I need help quick!

Mathematics
1 answer:
atroni [7]3 years ago
8 0
This one is tricky....but I'll go for D cause your multiplying a number towards 5



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A car is traveling 150 feet per second. Convert this to miles per hour.
Nana76 [90]

There are 3600 seconds in 1 hour.

Multiply feet per second by 3600 to get feet in 1 hour:

150 x 3600 = 540,000 feet in 1 hour.

1 mile = 5280 feet.

Divide feet per hour by 5280 to get miles per hour:

540,000 / 5280 = 102.27 miles per hour.

7 0
3 years ago
When using substitution to solve this system of equations, what is the result of the first step x=6y+3
myrzilka [38]
First step: you have to plug in 6y+3 into the equation and solve
Example: 6y+3+2y = 5
3 0
3 years ago
10.55 = as a simplest form​
Katarina [22]

Answer:

10 11/20

as a fraction.

Step-by-step explanation:

.55 is 55/100 but can be simplified. 55 and 100 can be divided by 5 so it goes to 11 and 20

5 0
3 years ago
620 prime factorization
seraphim [82]

Prime factorization of 620:

620

2 310

2 155

5 31

31 1

8 0
3 years ago
the question is in the picture below, if you could show all your work so i can see how to do it, that would be appreciated.
ki77a [65]

m∠R = 27.03°

Solution:

Given In ΔQRP, p = 28 km, q = 17 km, r = 15 km

To find the measure of angle R:

Law of cosine formula for ΔQRP:

r^{2}=p^{2}+q^{2}-2 pq \cos R

Substitute the given values in the above formula.

(15)^{2}=(28)^{2}+(17)^{2}-2 (28)(17) \cos R

225=784+289-952 \cos R

225=1073-952 \cos R

Switch the given equation.

1073-952 \cos R=225

Subtract 1073 from both side of the equation.

-952 \cos R=-848

Divide by –952 on both sides.

$ \cos R=\frac{106}{119}

$  R=\cos^{-1} \left(\frac{106}{119}\right)

R=27.03^\circ

Hence m∠R = 27.03°.

7 0
4 years ago
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