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2 years ago

Henry takes a math test that had 20 questions.

Mathematics

1 answer:

Alex17521 [72]2 years ago

4 0

Need more information but Henry would make an 85% on his test.

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Can you please help me?!

iren2701 [21]

Answer:

43.5 miles per hour

Step-by-step explanation:

Divide 174 miles by 4 hours. Hope this helped :)

7 0

3 years ago

Using distributive property what is 3(5 +6) =

Annette [7]

Answer:

3(5 +6) = <em>33</em>

Step-by-step explanation:

3(5+6)

so first you multiply 3 by 5

which is 15

then you multiply 3 by 6

which is 18

and that remains as 15+18

which in total equals <em>33</em>

7 0

3 years ago

Read 2 more answers

Find the x-coordinates where f ' (x)=0 for f(x)=2x+sin(4x) in the interval [0, pi]

MAVERICK [17]

Answer:

The x-coordinate is \dfrac{\pi}{6}[/tex].

Step-by-step explanation:

We are given a function f(x) as:

$f(x)=2x+\sin (4x)$

Now on differentiating both side with respect to x we get that:

$f'(x)=2+4 \cos (4x)$

When $f'(x)=0$

this means that $2+4\cos (4x)=0\\\\4\cos (4x)=-2\\\\\cos(4x)=\dfrac{-1}{2}$

Hence, cosine function takes the negative value in second and third quadrant but we have to only find the value in the interval $[0,\pi]$ .

also we know that $\cos (\dfrac{2\pi}{3})=\dfrac{-1}{2}$ ----(1) (which lie in the second quadrant)

so on comparing our equation with equation (1) we obtain:

$4x=\dfrac{2\pi}{3}\\\\x=\dfrac{\pi}{6}$

Hence, the x-coordinates where $f'(x)=0$ for $f(x)=2x+\sin(4x)$ is $\dfrac{\pi}{6}$ .

5 0

3 years ago

What is 0.08 written as a percent

andrew11 [14]

0.08 can be written as 8%

3 0

3 years ago

Read 2 more answers

Help I'm really stuck!!!

faust18 [17]

399.6 square meters
7•8/2=28
28•3=84

8•6.9/2=27.6

(12•8)•3=288

84+27.6+288=399.6

5 0

3 years ago

Read 2 more answers