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alekssr [168]
2 years ago
12

Rewrite using a single positive exponent. 7^9 x 7^-2

Mathematics
1 answer:
lidiya [134]2 years ago
6 0

Answer:

7^7

Step-by-step explanation:

When you multiply exponents with the same base, you add the exponents

Hope it helped!

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Which side lengths form a right triangle?
vampirchik [111]

Answer:

A and C

Step-by-step explanation:

<h3>A</h3>

=  \sqrt{ {5}^{2} + ( \sqrt{6})^{2}  }  \\  =  \sqrt{25 + 6}  \\  =  \sqrt{31}

<h3>C</h3>

=  \sqrt{ {9}^{2} +  {12}^{2}  }  \\  =  \sqrt{81 + 144}  \\  =  \sqrt{225}  \\  = 15

5 0
2 years ago
Read 2 more answers
Give the coordinates of a point on the line whose equation in point-slope form is.
pantera1 [17]

Answer:

  (4, -2)

Step-by-step explanation:

The point-slope form of the equation for a line is ...

  y -k = m(x -h)

for a line with slope m through point (h, k).

Comparing this to the equation you're given, you can see that the point that was used is (h, k) = (4, -2).

_____

You can find other points on the line, but this one is the easiest to find, since it can be read directly from the equation.

7 0
3 years ago
Terrell loves to listen to music, so he buys a subscription to a music-streaming service. He pays $4.99 each month. How much doe
Ilya [14]

Answer:

Yearly = \$59.88

Step-by-step explanation:

Given

Monthly = \$4.99

Required

Determine the yearly cost

To do this, we multiply the monthly subscription by 12

Yearly = Monthly * 12

Yearly = \$4.99 * 12

Yearly = \$59.88

<em>Hence, the yearly servics cost is $59.88</em>

4 0
3 years ago
Work out the unknown angles. Give reasons for each answer.
zalisa [80]
A)

Because the sum of angles in a triangle must equal 180° we can say:

62+α+90=180

α+152=180

α=28°

b)

Since all sides have equal length, all angles must have equal measure.  (This is an equilateral triangle).  And again, because the sum of the angle must be 180° we can say:

b+b+b=180

3b=180

b=60°
8 0
3 years ago
Which is an equation?
liq [111]

Answer:

c

Step-by-step explanation:

because it has an equal sign

3 0
3 years ago
Read 2 more answers
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