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Wittaler [7]
3 years ago
6

PLS HELP I DO NOT UNDERSTAND THIS I WILL MARK YOU BRANLIY What is the value of (3 × 10^-2)?

Mathematics
2 answers:
drek231 [11]3 years ago
5 0

Answer:

0.03

Step-by-step explanation:

3 * 10^-2

= 3 * 0.01

= 0.03

So, the answer you get would be 0.03.

Hope this helps!

Margaret [11]3 years ago
3 0

Answer: 300

Step-by-step explanation:

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4 men can finish a job in 7 days how many more people are needed to finish the job in 4 days?
Luden [163]

Answer:

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Step-by-step explanation:

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3 years ago
What are the solutions to the equation (x + 2)^2 = 49?
Mekhanik [1.2K]

Answer:

X= 5, -9

Step-by-step explanation:

(X+2)² =49

Expand the bracket,


(X+2) (X+2)= 49

Apply the distributive property;

X(X+2) +2 (X+2) =49

X²+2X+2X+4=49

X²+4X+4=49

Move 49 to the left side of the equation;

X²+4X+4-49=0

X²+4X-45=0

Apply Factorisation method;

Consider the form

a²+bx+c=0  

Find two numbers whose sum is equal to b and whose product is equal to c.
Comparing with our equation;

B =4 and C =45

We can use 9 and -5, this is because ;

9+(-5)=4 and 9*(-5)= 45.

Replace X +4X-45=0 with (X-5) (X+9)=0

Therefore;

X-5=0

X+9=0

Moving to the left side of the equation;

Therefore X= 5 and -9

8 0
3 years ago
Read 2 more answers
Mr. Perkins wants to rent a car for a day. It will cost the daily fee of $75 plus $0.55 per mile driven, which expression shows
Alla [95]

Answer:

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Step-by-step explanation:

We know that the constant is $75. You only pay this once.

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This means that the equation will look like:

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Hope this helps! :)

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3 years ago
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Contact [7]

Answer:

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Step-by-step explanation:

4 0
3 years ago
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