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2 years ago

Solve for x using the diagram of circle C. B В. (3x+49) (5x-7)

Mathematics

1 answer:

Nuetrik [128]2 years ago

4 0

Answer:

googl it

Step-by-step explanation:

its on googl and it has the anwser

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Help me with 2, 8, and 10 plz

OverLord2011 [107]

For #2:

3x^2 + 4 – 2x^2 + 6

You need to combine your like terms:
 3x^2 – 2x^2= x^2

4 + 6 = 10

This will now give you:

X^2 +10

3 0

3 years ago

The volume of a pyramid varies jointly with the base area of the pyramid and its height. The volume of one pyramid is 35 cubic i

Alla [95]

You first might want to divide 36 by 3, giving you 12. Multiply 12 by 5, which results in your answer of 60in^3. The equation for this is V = 1/3(blh)

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3 years ago

A road perpendicular to a highway leads to a farmhouse located d miles away. An automobile traveling on this highway passes thro

pshichka [43]

Answer:

$\frac{dh}{dt}=\frac{30r}{\sqrt{d^{2}+900}}$

Step-by-step explanation:

A road is perpendicular to a highway leading to a farmhouse d miles away.

An automobile passes through the point of intersection with a constant speed $\frac{dx}{dt}$ = r mph

Let x be the distance of automobile from the point of intersection and distance between the automobile and farmhouse is 'h' miles.

Then by Pythagoras theorem,

h² = d² + x²

By taking derivative on both the sides of the equation,

$(2h)\frac{dh}{dt}=(2x)\frac{dx}{dt}$

$(h)\frac{dh}{dt}=(x)\frac{dx}{dt}$

$(h)\frac{dh}{dt}=rx$

$\frac{dh}{dt}=\frac{rx}{h}$

When automobile is 30 miles past the intersection,

For x = 30

$\frac{dh}{dt}=\frac{30r}{h}$

Since $h=\sqrt{d^{2}+(30)^{2}}$

Therefore,

$\frac{dh}{dt}=\frac{30r}{\sqrt{d^{2}+(30)^{2}}}$

$\frac{dh}{dt}=\frac{30r}{\sqrt{d^{2}+900}}$

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3 years ago

It snowed from 9:43 PM to 11:37 PM. How long was it snowing?

dolphi86 [110]

Answer:

1 hour and 54 minutes and ignore this stuff sjsjsbdbsj

4 0

3 years ago

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Which expression is equivalent to 6m + (m – 2)(m + 7) + 3?

LuckyWell [14K]

Hello from MrBillDoesMath!

Answer:

m^2 + 11m - 11, which is the first choice

Discussion:

6m + (m-2)(m+7) +3 =

6m + (m^2 + 7m - 2m -14) + 3 =

(6m + 7m - 2m) + m^2 + (-14 + 3) = combine similar terms

11m + m^2 -11 =

m^2 + 11m - 11

which is the first choice

Thank you,

MrB

4 0

3 years ago

Read 2 more answers