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4 years ago

PLS ANSWER IM GIVING 25 POINTS + Brainliest

Mathematics

2 answers:

Nataly_w [17]4 years ago

6 0

Answer:

he correct answer is 4.

Step-by-step explanation:

Mars2501 [29]4 years ago

6 0

Answer:

The correct answer is 20.

Step-by-step explanation:

Can I get brainliest?

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Help please !!!!!!!!!

Lady_Fox [76]

I gave u the answer I’m a math kid

7 0

3 years ago

How do you find the <br> y-intercept and the slope for number 11

Pavel [41]

slope = y2-y1 / x2-x1=

-1 -5 / 2 - -1 = -6/3 = -2

slope = -2

y intercept = y =mx +b

y = -2x +b

y=-2*-1 +b

5 = -2 +b

b = 5-2

b =3

y intercept = 3

7 0

4 years ago

The equation of a straight line is y+10=5x

MariettaO [177]

Answer:

y=5x-10

Step-by-step explanation:

y+10=5x

y=5x-10

4 0

4 years ago

The radius of a right circular cone is increasing at a rate of 1.9 in/s while its height is decreasing at a rate of 2.2 in/s. At

musickatia [10]

Answer:

Volume of the cone is increasing at the rate $9916\pi \frac{in^3}{s}$ .

Step-by-step explanation:

Given: The radius of a right circular cone is increasing at a rate of $1.9$ in/s while its height is decreasing at a rate of $2.2$ in/s.

To find: The rate at which volume of the cone changing when the radius is $134$ in. and the height is $136$ in.

Solution:

We have,

$\frac{dr}{dt} =1.9 \:\text{in/s}$ , $\frac{dh}{dt}=-2.2\:\text{in/s}$ , $r=134 \:\text{in}$ , $h=136\:\text{in}$

Now, let $V$ be the volume of the cone.

So, $V=\frac{1}{3}\pi r^{2}h$

Differentiate with respect to $t$ .

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

Now, on substituting the values, we get

$\frac{dv}{dt} =\frac{1}{3}\pi\left [ \left ( 134 \right )^2\left ( -2.2 \right )+\left ( 136\right )\left ( 2 \right )\left ( 134 \right )\left ( 1.9 \right ) \right ]$

$\frac{dv}{dt} =\frac{1}{3}\pi\left [ -39503.2+69251.2 \right ]$

$\frac{dv}{dt} =\frac{1}{3}\pi\left [ 29748 \right ]$

$\frac{dv}{dt} =9916\pi \frac{in^3}{s}$

Hence, the volume of the cone is increasing at the rate $9916\pi \frac{in^3}{s}$ .

6 0

3 years ago

Sally is analyzing wheat production. She sampled 700 wheat farmers from across the state. She found a sample mean of

IrinaK [193]

Answer:

The yield per acre of wheat farms in the state ranges from 38.67 to 39.33 bushels.

Step-by-step explanation:

4 0

4 years ago