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3 years ago

Evaluate the expression when n=-5. n^2+6n+7

Mathematics

2 answers:

mr Goodwill [35]3 years ago

8 0

The answer is precisely -33

Phoenix [80]3 years ago

4 0

It is 2)n6+ 47(58) that the answer

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Pls help me whats 45x57

Morgarella [4.7K]

Answer:

2565

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Simplify the expression. -2^4 A. 16 B. -16 C. -8 D. 8

konstantin123 [22]

Hi there! :)

Answer:

=-16

*The answer must have a negative sign.*

Step-by-step explanation:

<h2>Lesson: Zero and Negative Exponents</h2><h2>Zero exponent rule: $a^0=1$ </h2>

First, you multiply by exponents.

$2^4=2*2*2*2=16$

It change positive to negative sign.

Final answer is B. -16

Hope this helps!

Have a nice day! :)

-Charlie

7 0

3 years ago

If Jimmy has 530 pieces of paper and Kit comes along and gives him 18 times as much, how many pieces of paper Jimmy have? And if

loris [4]

Answer:

10,070 and 10,047 pieces respectively

Step-by-step explanation:

In this question, we have 2 questions to answer.

Firstly, we are told that Jimmy has 530 pieces of paper and kit comes along to give him 18 times as much, we need to know how much he has now.

Since he was given 18 times as much, the amount given would be 18 * 530 = 9,540

The amount he has now would be 9,540 + 530 = 10,070 paper pieces

Secondly, Kim comes along to take 23 pieces away, we need to know how much pieces he has now. What to do is simply to

Subtract 23 from the previous pieces = 10,070 - 23 = 10,047 pieces of paper

4 0

3 years ago

What is 4.345 × 10^5 in standard form?

alexandr1967 [171]

<h3>Answer: 434,500</h3>

You may need to erase the comma

To get this answer, move the decimal point to the right 5 spaces to go from 4.345 to 434,500

If the exponent was -5, then you would move five spaces to the left.

8 0

3 years ago

I am in need for help please

kondaur [170]

Answer:

x = 12

Step-by-step explanation:

Exterior angles thm:

8x - 10 + 5x - 12 = 134

13x - 22 = 134

13x = 134 + 22

13x = 156

x = 12

6 0

3 years ago