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masha68 [24]
2 years ago
14

Lauren ran the 400-meter dash in fifty-three and ten hundredths seconds. How

Mathematics
1 answer:
astra-53 [7]2 years ago
8 0

Answer:

B

Step-by-step explanation:

Im not quite sure but i think it is b i hopeitcan help you!

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Find (f+g)(x) if f(x)=3x+10x and g(x)=5x-3
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3 years ago
Im not sure how to find the missing angle
LuckyWell [14K]

Answer:

Step-by-step explanation:

the question is asking for the length of the side labeled x

use Pythagoras'  theorem to find that side

where c = x   because c represents the hypotenuse in the theorem and x is on the hypotenuse in this problem

c = \sqrt{a^{2} + b^{2} }

sooo  plug in a = 14 and b = 10

c = \sqrt{14^{2} + 10^{2} }

c = \sqrt{196+100}

c = \sqrt{296}

c= 17.20465.....  ( that's the approx. length of side x in the problem )

since this is a right triangle we could use trigonometry to find the two angles use SOH CAH TOA  to remember how those functions fit on the triangle.

Sin(Ф)=Opp/Hyp  Cos(Ф)=Adj/Hyp  Tan(Ф)=Opp/Adj

since we know the Hyp (hypotenuse) and the side adjacent will be the side with the 10 soooo...

Cos(Ф)=10/17.20465

Ф = arcCos(10/17.20465)

Ф = 54.4623°  is the angle on the side with 10

the side with 14 then has an angle of 35.5376°

:)

5 0
3 years ago
5/9 = ?/54 whats the answer​
Shkiper50 [21]

Answer:

30/54

Step-by-step explanation:

1st make and equation so 5/9=x/54

now cross-multiply.

5/9=x/54

(5)*(54)=x*(9)

270=9x

you can flip the equation.

9x=270 (next divide both sides by 9)

x=30

so 30/54=5/9

hope this helps :)

5 0
3 years ago
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You have to multiply 12 by -16 =-192. When you subtract-200 with -192 you get -8
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3 years ago
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crimeas [40]
The answer  would be (it would stay the same)
5 0
3 years ago
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