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3 years ago

Rule S: Start with 21. Add 8.

2 answers:

8 0

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<h2>ITS ALL YOU FAULT SO OWN TO IT DUDE</h2>

lesya [120]3 years ago

4 0

Answer:

They both involve adding 8

Step-by-step explanation:

When you start with 21, you add 8. When you start with 15, you add 8. In both situations you add 8.

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2. Frank has been driving at a constant speed for 3 hours, during which time he traveled 195 miles. Frank would like to know how

kenny6666 [7]

Answer:

1: 195 divide by 3=65m/h

2: 455divide by 65=7hours

The remainder of Frank's trip is __7_____ hours.

8 0

3 years ago

assume x and y are both differentiable functions of t. find dx/dt given x=-1 and dy/dt=8 for the relation: 4x^2+3y^3=28

melomori [17]

Given:

x and y are both differentiable functions of t.

$4x^2+3y^3=28$

$x=-1\text{ and }\dfrac{dy}{dt}=8$

To find:

The value of $\dfrac{dx}{dt}$ .

Solution:

We have,

$4x^2+3y^3=28$ ...(i)

At x=-1,

$4(-1)^2+3y^3=28$

$4+3y^3=28$

$3y^3=28-4$

$3y^3=24$

Divide both sides by 3.

$y^3=8$

Taking cube root on both sides.

$y=2$

So, y=2 at x=-1.

Differentiate (i) with respect to t.

$4(2x\dfrac{dx}{dt})+3(3y^2\dfrac{dy}{dt})=0$

Putting x=-1, y=2 and $\dfrac{dy}{dt}=8$ , we get

$4(2(-1)\dfrac{dx}{dt})+3(3(2)^28)=0$

$-8\dfrac{dx}{dt}+9(4)(8)=0$

$-8(\dfrac{dx}{dt}-9(4))=0$

Divide both sides by -8.

$\dfrac{dx}{dt}-36=0$

$\dfrac{dx}{dt}=36$

Therefore, the value of $4x^2+3y^3=28$ is 36.

6 0

3 years ago

Help can’t seem to figure out the base number?

fredd [130]

9514 1404 393

Answer:

B = 6.65 in²

Step-by-step explanation:

The base area (B) is the area of the triangular base of the prism. You already know the sides of that triangle are 3, 5, and 7 inches. The figure shows the altitude to the side length 7 is 1.9 inches. The triangle area formula applies:

A = 1/2bh

A = 1/2(7 in)(1.9 in) = 6.65 in² . . . . area of one triangular base.

Then the area of one base is B = 6.65 in².

The lateral area is the product of the perimeter and the height:

LA = Ph = 15(12) = 180 . . . . square inches

The total surface area is the sum of the lateral area and the areas of the two bases.

SA = LA + 2B

SA = 180 in² + 2(6.65 in²) = 193.3 in²

3 0

3 years ago

What do you call any number that is expressed as an integer or as a ratio between two integers when 0 does not serve as the deno

Alchen [17]

A rational number because any number between two integers is a fraction.

5 0

3 years ago

Is the ratio 4.2:1.5 proportional to the ratio 12.6:4.5? Explain.<br> PLEASE HELP I SUCK AT MATH!!!!

Lana71 [14]

Yes, the two ratios are proportional to each other. The multiplier from the first ratio to the second ratio is 3. For example, 4.2 x 3 = 12.6 and 1.5 x 3 = 4.5. Basically, to figure out if two ratios are proportional to each other, just divide the smaller number into the bigger number for both corresponding numbers. If they're the same ---> Proportional. If they're not the same ---> Not Proportional

7 0

4 years ago

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