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WARRIOR [948]
2 years ago
12

What is | -7.9 ? help

Mathematics
1 answer:
Tamiku [17]2 years ago
3 0
I think you mean |-7.9| which is the absolute value of 7.9
Absolute value just means how far away it is from zero on a number line.
So the value is always positive. So the positive of -7.9 is 7.9
|-7.9|= 7.9
Good luck!
Please brainliest
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Find f(-3) if f(x) = x 2.
vlabodo [156]

Answer:

f(-3) = 9

Step-by-step explanation:

Lets define f(a) first where a is any integer,

f(a) is found out by putting the integer in the function in place of the variable

So for the given question

f(x) = x^{2}

In order to find f(-3) we will put -3 in place of x

So putting -3,

f(-3) = (-3)^{2}

f(-3) = 9

So, the value of function at -3 is 9 ..

5 0
3 years ago
Read 2 more answers
Triangle ABC had a perimeter 18 cm
Anna007 [38]

Answer:

Use pythagoreum theorem to determine whether it is or isn't since I'm not really sure myself but here's my calculations.

Step-by-step explanation:

We need to find AC.

Picture a triangle called ABC. AB is one side and BC the other while AC is the hypotenuse.

AC=

ac =  \sqrt{ab ^{2}  +  {bc}^{2} } \\ ac = \sqrt{ {7}^{2} }  +  {3}^{2}  \\ ac =  \sqrt{49 + 9}  \\ ac =  \sqrt{58 }  \\ ac = 7.6

Round up the 7.6 to a whole number and you get AC=8. To get perimeter of a triangle simply add the sides together to get 18.

Not really sure about my answer but hope this helped.

5 0
2 years ago
Triangle JKY is the image of triangle GBP after it has been rotated 180° about the origin.
sashaice [31]
∠G would be congruent to ∠J
∠B would be congruent to ∠K 
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Hope this helps :)
5 0
3 years ago
Y’all. I need you to help me
Sergio039 [100]

Answer:

10

Step-by-step explanation:

PQ/QR = ST/TR

17.5/QR = 7/4

QR = (17.5 x 4)/7

QR = 70/7

QR = 10

3 0
3 years ago
How do you invert and multiply to divide 2/3÷4
Ira Lisetskai [31]
2/3  ÷  4

2/3 ÷ 4/1

We invert the 4/1 to 1/4 and multiply out.

2/3  ×  1/4

= 1/3 × 1/2                              2 into 4 is 2.

= 1/(3 × 2)

= 1/6

Hope this helps.
4 0
3 years ago
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