Ask question

Ask question

All categories

zloy xaker [14]

2 years ago

8

PLEASE HELP

2 answers:

s344n2d4d5 [400]2 years ago

7 0

Let the length of the diameter be d and radius be r, thus to solve for d we proceed as follows:
r²+31²=(r+15)²
solving for d we solve for r
r²+961=r²+30r+225
putting like terms together we obtain:
r²-r²+961-225=30r
736=30r
solving for r
r=24.53
thus
d=24.5333×2
d=49.067~49.1
Answer is D. 49.1

Anvisha [2.4K]2 years ago

5 0

Answer:

r=49.1

Step-by-step explanation:

You might be interested in

Why do you think people who are good at math are usually successful on their jobs?

Sergeu [11.5K]

Hi! a lot of jobs require math in the real world. for instance, a architect has to get all the math correct on a building, otherwise one wrong measurement and it could fall. a lot of jobs involve math.

hope this helps!:)

6 0

2 years ago

Write 406 in word form

Sophie [7]

Answer:

Step-by-step explanation:

Four hundred six

7 0

2 years ago

Read 2 more answers

From a deck of 52 cards, one card is drawn at random. Match the following subsets with their correct probabilities.

zhenek [66]

1.3/13(if you mean jacks queens and kings)
2.1/52
3.1/2
4.1/13
5.1/4

8 0

3 years ago

Read 2 more answers

For his birthday, Tyrone's parents gave him $7,790.00 which they put into a savings account that earns 15% interest compounded m

torisob [31]

Answer:

5 years and 5 months

Step-by-step explanation:

<u />

<u>Compound Interest Formula</u>

$\large \text{$ \sf A=P(1+\frac{r}{n})^{nt} $}$

where:

A = final amount
P = principal amount
r = interest rate (in decimal form)
n = number of times interest applied per time period
t = number of time periods elapsed

Given:

A = $17,474.00
P = $7,790.00
r = 15% = 0.15
n = 12
t = number of years

Substitute the given values into the formula and solve for t:

$\implies \sf 17474=7790\left(1+\dfrac{0.15}{12}\right)^{12t}$

$\implies \sf \dfrac{17474}{7790}=\left(1.0125}\right)^{12t}$

$\implies \sf \ln\left(\dfrac{17474}{7790}\right)=\ln \left(1.0125}\right)^{12t}$

$\implies \sf \ln\left(\dfrac{17474}{7790}\right)=12t \ln \left(1.0125}\right)$

$\implies \sf t=\dfrac{\ln\left(\frac{17474}{7790}\right)}{12 \ln \left(1.0125}\right)}$

$\implies \sf t=5.419413037...\:years$

Therefore, the money was in the account for 5 years and 5 months (to the nearest month).

3 0

1 year ago

Read 2 more answers

One thirdOne third of a number is added to 77, giving a result of at least 33.

alexgriva [62]

Answer:

in my ipinion...

Step-by-step explanation:

let a no.be x

1/3*x+77=33

1/3*x=-44

x=-44*3

x=-132

6 0

2 years ago