Let b = 8.What is the value of 28 – b · 2?

A.
10

B.
12

C.
24

D.
40

Answers

Answer 1
Answer:

the answer is B.12 because 8*2=16 and 28-16=12


hope i helped


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Tina wants to save money for school. tina invests $400 in an account that pay an interest rate of 7.5%. How many years will it take for the account to reach $8500? Round your answer to the nearest hundredth.

Answers

Here's the given:
P=$400
i=7.5%
A=$8500

The formula used for this problem is:
A = P(1+i)^t

Manipulating the equation to arrive at t, we have:
t = ln(A/P) / ln(1+i)

Plugging in values:
t = ln($8500/$400) / ln(1+0.075)
t = 42.26 years

What is the quotient of 2,173 ÷ 53

Answers

Answer:

41

Step-by-step explanation:

Simplify (7-5i)(-3+9i)-(5+6i)^2

Answers

(-21 + 63i + 15i - 45i^2) - (25 + 60i + 36i^2) =

(-21 + 78i + 45) - (-11 + 60i) =

24 + 78i - 60i + 11 =

35 + 18i

All of the following numbers are composite numbers except:

15
17
18
14

Answers

15, 18 and 14 are composite except 17 which is prime

your answer is B=17

hope I helped you

don't pay attention to my work right there because I'm not sure if it's right, the correct answer is c because the teacher say it was c but I don't know how he got that please help and explain pls

Answers

exponential in form. y=AB^x
put data into calc should get
A = 1000 and B = 1.06
y=1000(1.06^x)

x=30 years, y=1000(1.06^30)=5743

A=1000 is the principal (initial deposit)
B=1.06 mean compound interest 6%

Given right triangle DEF, what is the value of tan(F)?

Answers

we know that

In the right triangle DEF

the tangent of the angle F is equal to

tan(F)=(opposite\ side\ angle\ F)/(adjacent\ side\ angle\ F)=(DE)/(EF)

substitute the values

tan(F)=(40)/(9)

therefore

the answer is the option

(40)/(9)

Answer: (40)/(9)

Step-by-step explanation:

We know that for any angle x in a triangle ,

\tan x=\frac{\text{side opposite to x}}{\text{side adjacent to x}}

Now, for the given triangle DEF, the value of tan(F) is given by :-

\tan F=\frac{\text{side opposite to F}}{\text{side adjacent to F}}\n\n\Rightarrow\ \tan F=(40)/(9)

Hence, the value of tan(F) = =(40)/(9)