3 years ago

For the right triangle with side of lengths 5 12 and 13, find the length of the radius of the inscribed circle

Mathematics

1 answer:

I am Lyosha [343]3 years ago

3 0

Hi,
$r*(5+12+13)=5*12\\\\

r= \dfrac{60}{30} \\

\boxed{r=2}$

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Bobby wants to go on a school trip that will cost him $250. He comes up with an equation that represents how much he needs to sa

monitta

Yes, Bobby will have enough money if he saves for 9 weeks. You can find this through either substituting w for 9 in the equation, or solving the equation itself.

Substituting:

$25(9)+30$
Substitute w for 9.

$225+30$
Simplify.

$225+30=255$
Solve.

255 is greater than 250, so yes, he will have enough money saved.

Solving the equation:

$25w+30=250$
Original Equation

$25w=220$
Subtract 30 from both sides.

$w=8.8$
Divide both sides by 25.

The number of weeks he needs is 8.8. When rounding it up, you get 9.

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3 years ago

A boat is heading towards a lighthouse,

larisa86 [58]

Answer: 920.3 ft

Step-by-step explanation:

$\tan 7^{\circ}=\frac{113}{x} \\ \\ x(\tan 7^{\circ})=113 \\ \\ x=\frac{113}{\tan 7^{\circ}} \approx \boxed{920.3 \text{ ft}}$

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1 year ago

Danielle earns a 7.75% commission on everything she sells at the electronics store where she works. She also earns a base salary

kaheart [24]

Answer:

ok so this can be represented as

7.75x+675=1062.50

-675

7.75x=387.5

divide by 7.75

x=50

Hope This Helps!!!

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2 years ago

Factor 200t+83 - 80t2.<br> A. 8t(t - 5)(t + 5)<br> B. 8t(t - 5)2<br> C. -8t(t - 5)(t + 5)

Mashutka [201]

Step-by-step explanation:

8t³-80t²+200t

= 8(t³-10t+25)

= 8t(t²-10t+25)

= 8t(t-5)(t-5)

= 8t(t-5)²

the answer is B.

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3 years ago

PLEASE ANSWER ASAP PLEAS

garik1379 [7]

Answer:

d only.

Step-by-step explanation:

lol i know ur map testing, i had the same question yesterday

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3 years ago