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Nat2105 [25]
3 years ago
11

Someone pls help I don’t understand how to find this

Mathematics
1 answer:
oksano4ka [1.4K]3 years ago
8 0
The answer is D, because if you plug in (2,-1) in all of them, only the last one works.
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X squared minus 8 equals 8
Citrus2011 [14]

{x}^{2}  - 8 = 8 \\

x^2 - 8 + 8 = 8 + 8

x^2 = 16

x = √16

x = 4

5 0
3 years ago
25 POINTS!!! HELP PLEASE <3
Monica [59]

Answer:

the answer is m=4

Step-by-step explanation:

6 0
3 years ago
The ratio of two complementary angles is 17:13. What is the measure of the smaller angle?
Mariana [72]
We know by definition that complementary angles add up to 90 degrees. We can set up an equation using the ration given:

17x+13x=90, with x representing the amount you need to multiply the ratio by to get 90.

17x+13x=90
30x=90
x=3

We now know that the number we multiply the ratio by is 3. The smaller number in the ratio is 13, and so therefore we multiply it by 3.

3*13=39

The answer is 39 degrees.
8 0
3 years ago
which statement correctly compares two values? a)the value of the 7 in 37.596 is 1/10 the value of the7 in 26.74 b) the value of
Andrews [41]

The value of 7 in 26..74 is 0.7

The value of 7 in 37.596 is 7.

1/10 the value of 7 in 26.74 is 0.07 and 0.07 ≠ 7.

So, statement a) is incorrect.

1/100 the value of 7 in 26.74 is 0.007 and 0.007 ≠ 7.

So, statement c) is incorrect.

100 times the value of 7 in 26.74 is 70 and 70 ≠ 7.

So, statement d) is incorrect.

10 times the value of 7 in 26.74 is 7 and 7 = 7.

So, statement b) is correct and it correctly compares two values.

7 0
3 years ago
If four times a number plus 3 is 11, what is the number?<br> O A.5<br> O B. 16<br> OC. 2<br> O D.4
kiruha [24]

Answer:

2

Step-by-step explanation:

Let, the number be 'x'.

As per question,

4×x+3=11

subtracting 3 on both sides,

4x=8

dividing by 4 on both sides

x=2.

hence, the number is 2.

7 0
3 years ago
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