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pantera1 [17]
3 years ago
6

Donna has a new job. Her annual starting salary is $17,600, and she receives a raise of $850 at the end of each year. Which expr

ession models her salary at the beginning of her nth year? What will Donna's salary be at the beginning of her 5th year?
A. 17600 + 850(n - 1); $21,000
B. 17600 + 850(n + 1); $22,700
C. 17600 - 850(n - 1); $24,200
D. 17600 + 850n; $21,850
Mathematics
1 answer:
DanielleElmas [232]3 years ago
8 0
D would be the best answer in my opinion
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Someone please help me. Im giving brainliest!!
8090 [49]

Answer:

23

Step-by-step explanation:

Use the hint to solve!

New equation would be 49 = 26 + h.

49 - 26 = 23.

Holly has 23 barrettes.

5 0
2 years ago
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A triangle has sides of lengths 12, 14, and 19. Is it a right triangle? Explain.
Molodets [167]
A^2 + b^2 = c^2 
<span>C should equal to the longer side, which would be 19. </span>
<span>Plug in other two numbers for A and B. </span>
<span>12^2 + 14^2 = 19^2 </span>
<span>Now see if it's correct. If it is, then it's a right triangle, if it's not then it isn't a right triangle. </span>
<span>144 + 196 = 361 </span>
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7 0
3 years ago
Eva is 29 years old and has 2 children, ages 3 and 5. She makes 48,500 a year. Eva decides to buy a 400,000 10-year term policy
earnstyle [38]

Answer:

Eva would have been better off selecting the 20-year term policy.

Step-by-step explanation:

Base on the scenario been described in the question, Eva would have been better off selecting the 20-year term policy. This reason is because assuming Eva bought the 20-year term policy, she wont be paying the new charge of extra 40% to her premium rate, compared to when she bought the 10-year term policy then renew the policy for another ten years.

3 0
3 years ago
Franco is reading a book with 482 pages. he reads 30 pages each night. how many pages will he read in 7 nights?
Alexeev081 [22]
120 because 30 times 7 is 120
4 0
3 years ago
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Suppose a and b are both non zero real numbers. Find real numbers c and d such that 1/a+ib= c+id
Thepotemich [5.8K]

\begin{gathered} c=\frac{a}{a^2+b^2} \\ d=\frac{-b}{a^2+b^2} \end{gathered}

Explanation

\frac{1}{a+bi}=c+di

Step 1

multiplicate by the conjugate

\begin{gathered} \frac{1}{a+bi}\cdot\frac{a-bi}{a+bi}=\frac{a-bi}{(a+bi)(a-bi)}=\frac{a-bi}{a^2-(bi)^2} \\ \frac{1}{a+bi}\cdot\frac{a-bi}{a+bi}=\frac{a-bi}{(a+bi)(a-bi)}=\frac{a-bi}{a^2-(-b^2)}=\frac{a-bi}{a^2+b^2} \end{gathered}

notice that

\begin{gathered} \frac{1}{a+bi}=\frac{a-bi}{a^2+b^2}=\frac{a}{a^2+b^2}-\frac{b}{a^2+b^2}i \\ \frac{a}{a^2+b^2}-\frac{b}{a^2+b^2}i=c+di \\ so \\  \end{gathered}\begin{gathered} c=\frac{a}{a^2+b^2} \\ d=\frac{-b}{a^2+b^2} \end{gathered}

I hope this helsp you

6 0
1 year ago
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