If the diameter
of Earth is 7918
miles, what is the
distance from its
surface to its core,
in miles?

Answer:

Step 2: 4x - 6 = 10 + 2x

Step-by-step explanation:

2 needs to be distributed to all terms inside the parentheses.

Answer:

Step 2 is wrong, and the right step 2 is 4x − 6 = 10 + 2x

Step-by-step explanation:

The student didn't multiply 2(3) in step 2

Answer:

y=-5x+6

Step-by-step explanation:

To find your slope (or m value), you must identify 2 points that your line crosses through (I used (1,1) and (0,6). You can either count up and over to the point (0,6) from (1,1), or you can use the formula y2-y1/x2-x1 (it would look like 6-1/0-1). This will give you -5 for your slope.

Your x-intercept (or b value) is 6 because you can see from the graph that that is where your line intercepts y.

I hope this helped :)

Answer:

145.83 kilómetros.

Step-by-step explanation:

Si un conductor llena su tanque con $600 y recorre 250 kilómetros, para determinar cuántos kilómetros podrá recorrer con $350 de combustible se debe realizar el siguiente cálculo:

600 = 250

350 = X

350 x 250 / 600 = X

87,500 / 600 = X

145.83 = X

Así, con $350 de combustible se podrán recorrer 145.83 kilómetros.

Answer:

y=4x+4

Step-by-step explanation:

It has the biggest slope of the equations of 4, and increases the most.

Answer:

radius:19.73521 Diamiter:39.47042 Area:1223.583

Step-by-step explanation:

Answer:

Step-by-step explanation:

15-5

a-(-5)

a-(-b)

Answer:

.4

Step-by-step explanation:

52/ /4= 10.4

60/6=10

10.4-10=.4

Michela needs to increase her speed by 0.23 miles/hour to attain her goal.

The rate of change is the change of a quantity over 1 unit of another quantity.

Most of the time the rate of change is the change with respect to time.

For example the speed 3meter/second.

As per the given,

She runs 5 miles in 52 minutes.

5 miles in (52/60) hour

In 1 hour → 5(60/52) = 300/52 = 5.769

Her goal was 6 miles in 1 hour.

5.769 + x = 6

x = 0.23 miles/hour

Hence "Michela needs to increase her speed by 0.23 miles/hour to attain her goal".

To learn more about the rate of change here,

brainly.com/question/12786410

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9514 1404 393

Answer:

  x ≈ 7.00

  y ≈ 12.21

Step-by-step explanation:

The mnemonic SOH CAH TOA is intended to remind you of the relationships ...

  Cos = Adjacent/Hypotenuse

  Tan = Opposite/Adjacent

__

Translated to the figure at hand, these are ...

  cos(35°) = 10/y   ⇒   y = 10/cos(35°) ≈ 12.21

  tan(35°) = x/10   ⇒   x = 10·tan(35°) ≈ 7.00

Answer:

16.69°

Step-by-step explanation:

Given that,

Height of the building, h = 60 foot

Distance from the base of the building, b = 60 foot

We need to find the angle of elevation must the plane takes off in order to avoid crashing into the building. So,

[tex]\tan\theta=\dfrac{60}{200}\\\\\theta=\tan^{-1}\dfrac{60}{200}\\\\=16.69^{\circ}[/tex]

So, the required angle is 16.69°.

Answer:

The regular cost of each ticket is $30

Step-by-step explanation:

Hi,

You and three friends means there was a total of 4 people. Your equation is...

4x - 20 = 100

Remember to add the -20 since there was a coupon that saved you $20.

Now solve...

4x - 20 = 100

+ 20 on both sides

4x = 120

Divide by 4 on both sides

x = 30

The regular cost of each ticket is $30

Hope this helps :)

Answer:

e it's  really first question re  want to make this

each ticket would be $25  a regular

Step-by-step explanation:

9514 1404 393

Answer:

  59°

Step-by-step explanation:

The law of cosines tells you ...

  h² = f² +g² -2fg·cos(H)

Solving for angle H gives ...

  H = arccos((f² +g² -h²)/(2fg)) = arccos(725/1400) ≈ 58.811°

  ∠H ≈ 59°

Answer:

100

Step-by-step explanation:

it just is

Answer:

(B). 319

Step-by-step explanation:

[tex]\frac{42}{60}[/tex] = [tex]\frac{x}{456}[/tex]

[tex]\frac{7}{10}[/tex] = [tex]\frac{x}{456}[/tex]

x = [tex]\frac{7*456}{10}[/tex] ≈ 319

The best estimate of the number of those parents likely to support the new proposal is 319. So the option is (B) 319.

Firstly, there is proportional relationship.

Two values x  and  y are said to be in a proportional relationship if x=ky, where x and y are variables and k is a constant.

The constant k is called constant of proportionality.

Parents of students at a middle school were randomly selected to participate in a survey.

42 out of 60 parents who were surveyed support a proposal to buy new computers.

There are a total of 456 parents with students at the middle-school.

[tex]\dfrac{42}{60} = \dfrac{x}{456} \\\\\\x = \dfrac{42}{60} \times 456\\\\x = \dfrac{7}{10} \times 456\\\\x = 319[/tex]

Therefore, the best estimate of the number of those parents likely to support the new proposal is 319.

Learn more about directly inversely proportional relationship variable here:

https://brainly.com/question/13082482

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Answer:

true

Step-by-step explanation:

Answer:

in feet its 19

In inches it would be 4

Answer:

x = 3/2

Step-by-step explanation:

Step (1) :

We should put like term togther:

3x - x = 2 +1

2x = 3

Step (2) :

Divide bothe side by 2:

2x/2 = 3/2

x = 3/2

Answer:

Instead of adding the exponents of 2 to get four you should just leave the exponent as two in the final answer.

Answer:

1/12

Step-by-step explanation:

it is correct i know  it is

Answer: 1/5 is

Step-by-step explanation:

1/5 = 0.2

1/3 = 0.333

Answer:

x = -1

x + 2 = 1

x = 1 - 2

x = -1

Hope that helps!

-Sabrina

Step-by-step explanation:

f(x) = x³ - 2x² - 24x

x³ - 2x² - 24x = 0

x(x² - 2x - 24) = 0

x = 0

x² - 2x - 24 = 0

a = 1, b = -2, c = -24

Delta = (-2)² - 4 * 1 * (-24) = 4 + 96 = 100

x = (-(-2) - 10)/(2 * 1) = -8/2 = -4

x = (-(-2) + 10)/(2 * 1) = 12/2 = 6

Answer: 2)

Answer:

5x-y=-6.............1

y=-7x+6...........2

substituting value of y in equation 1

5x-(-7x+6)=-6

5x+7x-6=-6

12x=0

x=0/12=0

substituting value of x in equation 1

5×0-y=-6

y=6

Answer:

504ft3

Step-by-step explanation:

V=Bh

V=(18x2) 14

V=36x14

V= 504

Answer:

volume = height × length ×width

volume =18×14×2

volume =504ft³

Answer:

y=9x+7

Step-by-step explanation:

the number in front of x is always the slope and the number after it is the Y intercept where the line first crosses the Y axis

Answer:

8(4k-12)

Step-by-step explanation:

you can really only check and guess here and it happens to be the second choice 8(4k-12)

8(4k-12)

32k -96

Answer:

y = 2x + 8

Hope this helps