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2 years ago

This is the hardest one yet! Please help!!

Mathematics

2 answers:

OlgaM077 [116]2 years ago

5 0

Answer:

whats the question?

Step-by-step explanation:

sattari [20]2 years ago

3 0

Answer:

Write your question.

Step-by-step explanation:

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A triangle has 2 sides of lengths 7 and 12 what value could the length of the third side be

yawa3891 [41]

Answer:

Step-by-step explanation:

a^2+b^2=c^2

7^2+12^2=c^2

=193^2

find the square root of 193

13.9ish

8 0

3 years ago

HELP please.

Scorpion4ik [409]

Answer:

Step-by-step explanation:

Here, originally, we are told that the point Q has coordinates (-2,1)

Now, its dilated point has the coordinates (-8,4)

what we can observe here is the the shape original polygon was dilated by a factor of 4 to give the image

Now the point R’ is (0,8)

To get the point R , we simply divide each coordinate by 4

Thus, we have (0/4 , 8/4)

This is same as option C

4 0

3 years ago

Which of the following are the appropriate LaTeX: f\left(x\right)f ( x ) and LaTeX: g\left(x\right)g ( x ), for LaTeX: H\left(x\

katen-ka-za [31]

Answer:

$f\left(x\right)=\cos\left(x\right)\: and\:\: g\left(x\right)=\left(2x^2-1\right)$

Step-by-step explanation:

We have, $H\left(x\right)=\cos\left(2x^2-1\right)H ( x )$

$=\cos\left(2x^2-1\right)$

And $H\left(x\right)=\left(f\:\circ\:g\right)\left(x\right)H ( x ) = \left(f\:\circ\:g\right)( x )$

$\Rightarrow \left(f\:\circ\:g\right)(x)=\cos\left(2x^2-1\right)$

Now, $f\left(x\right)=\cos\left(x\right)$ and $g\left(x\right)=\left(2x^2-1\right)$

5 0

3 years ago

Question 3<br> Which verbal expression shows 4+ n?

Natalka [10]

Answer:

- N more than 4.

- 4 plus n.

-4 added with n.

Are some types of verbal expression for this expression.

8 0

3 years ago

A stone is dropped into a lake, creating a circular ripple that travels outward at a speed of 70 cm/s. Find the rate at which th

jeyben [28]

Answer:

(A) 30772cm^2/s

(B) 153860cm^2/s

Step-by-step explanation:

We are given

speed of the ripple = 70cm/s

this speed is increasing the radius which means speed = radius /time

radius = speed*time

r= 70t

Now we know the area of the circle

A = π $r^2$

this area will be increasing as ripples in water will spread out

upon differentiating

dA/dt = 2πr * $\frac{dr}{dt}$

dA/dt = 2π*70t*70 ( r= 70t , dr/dt = speed = 70)

dA/dt = 9800π*t

(A) after 1 second

dA/dt = 9800π*1=9800π = 30772cm^2/s

(B) after 5 seconds

dA/dt = 9800π*5 = 153860cm^2/s

(C) after 6 seconds

dA/dt = 9800π*6 = 184632 cm^2/s

4 0

3 years ago