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Over [174]
1 year ago
12

Evaluate. (-5)² A. -52 B. -25 C. -10 D. 10 E. 25​

Mathematics
2 answers:
storchak [24]1 year ago
7 0

Answer:

E. 25

Step-by-step explanation:

A negative times a negative equals a positive. And a squared number is the number inside the parentheses time that number.

Example:

-5×-5=25

blagie [28]1 year ago
5 0

(-5)²

= (-5)×(-5)

= 25

-> E

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Very large or very small numbers are best input with exponential notation. For instance, the number 8,000,000 (eight million) is
Lerok [7]

Answer:

9*10^{12}km

Step-by-step explanation:

9,460,730,472,580.8 km

First, we can work out 5% of our number, by multiplying it by 0.05

9,460,730,472,580.8 * 0.05 = 473,036,523,629

Now, if we add and subtract our 5% calculated from our original number, we can work out the minimum and maximum value that our final answer can be in the range of.

9,460,730,472,580.8 + 473,036,523,629 = 9.933767*10^{12}\\9,460,730,472,580.8 - 473,036,523,629 =8.98769395*10^{12}

We can see that 9*10^{12} is in the range of valid answers, as:

8.9*10^{12} \leq 9*10^{12} \leq 9.9 * 10^{12}

So, our final answer is:

9*10^{12}km

5 0
3 years ago
Read 2 more answers
Multiply 6 and 7. Then, divide by 3.
posledela

6 * 7 = 42 so then you take and divide

42/3 =  14

7 0
3 years ago
Read 2 more answers
Find the slope of the line through the given points.<br> (8,0) and (10, 10)
postnew [5]
Slope (y2-y1)/(x2-x1)
(10-0)/(10-8) = 10/2 = 5
The slope is 5
6 0
2 years ago
Frank is having the car pets in his house cleaned. The cost of the cleaning is calculated from the area of the carpets. C= the c
asambeis [7]

Answer:

Cost of the cleaning, C is the dependent variable

Area of the carpet, a is the independent variable

Step-by-step explanation:

cost of the cleaning is calculated from the area of the carpets

C= the cost of the cleaning a= the area of the carpets.

Cost of the cleaning, C is the dependent variable

Area of the carpet, a is the independent variable

A dependent variable is a variable which depends on other factors to exist. They take their values based on other factors. Their value is changed as a result of a change in independent variable

An independent variable is a variable which does not change as a result of the change in other factors. They take their values irrespective of external factors around them.

5 0
3 years ago
Write an equation of the line passing through each of the following pairs of points. c (4, 0), (−2, 8)'
Tomtit [17]

Answer:

Step-by-step explanation:

First, you must find the slope of the line using the formula (y2-y1/x2-x1). For your problem that would be (8-0/-2-4)= -4/3.

Then, you would plug in the slope and the y-intercept into the slope-intercept formula (y=mx+b), where m is the slope and b is the y intercept (4).

Your answer would be y=-4/3x+4

6 0
3 years ago
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