All categories

3 years ago

Using number lines 80 is 25% of what number

1 answer:

3 0

25% can be made in to 100% by multiplying it by 4.

Therefore, we can find the answer by multiplying 80 by 4.

80 * 4 = 320

You might be interested in

Find the value of sinY

Tatiana [17]

Answer:

$\frac{63}{65}$

Step-by-step explanation:

Please see the attached picture.

Let's find the value of the opposite side, XZ.

Applying Pythagoras' Theorem,

(XZ)² +(XY)²= (ZY)²

(XZ)² +16²= 65²

(XZ)²= 4225 -256 (bring constant to 1 side)

(XZ)²= 3969 (simplify)

Square root both sides,

XZ= $\sqrt{3969}$

XZ= 63 (simplify)

sinY

= XZ/ ZY

$= \frac{63}{65}$

8 0

3 years ago

The height, h, in feet of a golf ball above the ground after being hit into the air is given by the equation, h = -16t 2 + 64t,

leva [86]

Answer:

4 seconds.

Step-by-step explanation:

The given equation is

$h=-16t^2+64t$

where, h is height in feet of a golf ball above the ground after being hit into the air and t is the number of seconds elapsed since the ball was hit.

We need to find the time for the ball to hit the ground.

At ground level the height of ball is 0, i.e., h=0.

$-16t^2+64t=0$

$-16t(t-4)=0$

Using zero product property, we get

$-16t=0\Rightarrow t=0$

$t-4=0\Rightarrow t=4$

Therefore, it will take 4 seconds for the ball to hit the ground.

5 0

3 years ago

The derivative of a function f(x)=2-7sinx is--------

Setler [38]

Answer: -7cos(x)

Step-by-step explanation:

d/dx (f(x))= -7cos(x)

7 0

2 years ago

Suns the value of m, rounded to the nearest tenth

german

Answer: I think is B or A

Step-by-step explanation:

7 0

3 years ago

WILL GIVE BRAINLIEST

user100 [1]

I'm pretty sure the answer is SAS because it gives you one angle and the rest are sides

4 0

3 years ago

Read 2 more answers