All categories

3 years ago

PLSS HELP PLSSSSSSSssssssssssss

Mathematics

1 answer:

max2010maxim [7]3 years ago

8 0

Answer:

24% voted for candidate C.

Step-by-step explanation:

36/150 = 0.24 = 24%

You might be interested in

Which ordered pair in the form (a, b) is a solution of this equation?

Evgen [1.6K]

3a - 4b = 21

check (-2 , -3)

3(-2) -4(-3) =21

-6 +12 = 21

6 does not = 21 so NO

check (0 , 7)

3(0) -4(7) =21

0-28=21

-28 does not equal 21 so NO

check (-3 , -2)

3(-3) -4(-2) =21

-9 +8 = 21

1 does not = 21 so NO

check (7 , 0)

3(7) -4(0) =21

21 = 21

Choice D

5 0

4 years ago

The radius of a right circular cone is increasing at a rate of 1.4 in/s while its height is decreasing at a rate of 2.1 in/s. At

kow [346]

Given:

$\dfrac{dr}{dt}=1.4\text{ in/s}$

$\dfrac{dh}{dt}=-2.1\text{ in/s}$

To find:

The rate of change in volume at $r=120\text{ in. and }175\text{ in.}$

Solution:

We know that, volume of a cone is

$V=\dfrac{1}{3}\pi r^2h$

Differentiate with respect to t.

$\dfrac{dV}{dt}=\dfrac{1}{3}\pi\times \left[(r^2\dfrac{dh}{dt}) + h(2r\dfrac{dr}{dt})\right]$

Substitute the given values.

$\dfrac{dV}{dt}=\dfrac{1}{3}\times \dfrac{22}{7}\times \left[(120)^2(-2.1) +175(2)(120)(1.4)\right]$

$\dfrac{dV}{dt}=\dfrac{22}{21}\times \left[-30240+58800\right]$

$\dfrac{dV}{dt}=\dfrac{22}{21}\times 28560$

$\dfrac{dV}{dt}=29920$

Therefore, the volume of decreased by 29920 cubic inches per second.

6 0

3 years ago

PLEASE HELP! 25 POINTS!

Marizza181 [45]

Step-by-step explanation:

Step 1: Convert the mixed number into an improper fraction

$1 \frac{5}{7}$

$\frac{7}{7}+ \frac{5}{7}$

$\frac{12}{7}$

Step 2: Multiply to find the area

$\frac{5}{6}*\frac{12}{7}$

$\frac{60}{42}$

Step 3: Convert into a mixed number

$\frac{60}{42}$

$\frac{42}{42} + \frac{18}{42}$

$1 \frac{18}{42}$

$1\frac{3}{7}$

Answer: $1\frac{3}{7}$

6 0

3 years ago

Read 2 more answers

How do you find the whole number from the percentage increase? (Give an example)

hjlf

Say the percentage increase is 25%. If you have the whole number of 30 then you would multiply 30 by .25. You should therefore get 7.5 once both are multiplied. That means you should add 7.5 to 30, and your final answer will be 37.5.

4 0

3 years ago

Find the circumference in inches

Alborosie

Answer:

Step-by-step explanation:

2×radius with pi, 28*pi=28 pi or 87.92

3 0

3 years ago

Read 2 more answers