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3 years ago

21➗7= , ✖️7=21 what is the meaning of the unknown factor and quotient?

Mathematics

1 answer:

viktelen [127]3 years ago

5 0

21 divided by 7 equals 3 and 3 x 7 is 21 the missing factor is 3 and the missing quotient is 21

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Verify that the function satisfies the three hypotheses of Rolle's Theorem on the given interval. Then find all numbers c that s

Gwar [14]

Answer:

c=2

Step-by-step explanation:

All polynomials are continuous and differentiable on the set of real numbers.

So we just need to confirm on the given interval that f(1)=f(3).

f(1)=1-12(1)+3(1)^2

f(1)=1-12+3

f(1)=-8

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f(3)=1-36+27

f(3)=-8

So this means there is c in (1,3) such that f'(c)=0.

To solve that equation we must differentiate.

f(x)=1-12x+3x^2

f'(x)=0-12+6x

f'(x)=-12+6x

Remember we need yo solve f'(c)=0 for c.

So we need to solve -12+6c=0.

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6c=12

Divide both sides by 6:

c=2

6 0

4 years ago

The mass of a piece of iron pyrite, or "fools gold", is 57.2 g. The volume is 11 cm3. What is the density of the piece of iron p

katen-ka-za [31]

Answer:

Step-by-step explanation:

The density of a substance can be found by using the formula

$density = \frac{mass}{volume} \\$

From the question we have

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We have the final answer as

Hope this helps you

3 0

3 years ago

Graph the function f(x)=−1/3x+1.<br><br> Use the line tool and select two points to graph.

EleoNora [17]

Answer:

Step-by-step explanation:

f(x) = -1/3x + 1:

7 0

3 years ago

Read 2 more answers

Help me i need a 60 or above

BARSIC [14]

Answer:

See below.

Step-by-step explanation:

12(3d+8)

36d+96

-hope it helps

6 0

2 years ago

Read 2 more answers

An inner city revitalization zone is a rectangle that is twice as long as it is wide. The width of the region is growing at a ra

Ket [755]

Answer:

The area is changing at the point of $\mathbf{61200 m^2/year}$

Step-by-step explanation:

From the given information:

Let's recall from our previous knowledge that the formula for finding the area of a rectangle = L × w

where;

L = length and w = width of the rectangle

Suppose the Length L is twice the width w

Then L = 2w --- (1)

From The area of a rectangle

A = L × w

A = 2w × w

A = 2w²

Taking the above differentiating with respect to time

$\dfrac{dA}{dt }= 4w \times \dfrac{dw}{dt} --- (2)$

At the time t

$\dfrac{dw}{dt}= 34 m \ per \ year ; w = 450 \ m$

Replacing the values back into equation 2, we get:

$\dfrac{dA}{dt }= 4 \times 450 \times 34$

$\mathbf{\dfrac{dA}{dt }= 61200 m^2/year}$

7 0

3 years ago