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3 years ago

Simplify the following expression: 9^−53 ⋅ 9^37 Please also explain your answer. Thanks!

Mathematics

1 answer:

Alexus [3.1K]3 years ago

8 0

Answer: 9^-16

Step-by-step explanation:

a^b*a^c= a^b+c

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In-s [12.5K]

41 feet is the correct answer !!!!!!

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3 years ago

A polygon has its vertices at the following points.

seropon [69]

Answer:

isosceles trapezoid

Step-by-step explanation:

1) find the distance of the points

$\sqrt{(x2-x1)^2 + (y2 -y1)^2}$

AB = $\sqrt{(4-2)^2 + (7-5)^2} = \sqrt{4 + 4} = \sqrt{8} = 2 \sqrt{2}$

BC = |7-4| = 3

CD = $\sqrt{(9-7)^2 + (5-7)^2}= \sqrt{4+4} = \sqrt{8} = 2 \sqrt{2}$

AD = |9-2| = 7

2) equation of the line that passes threw BC

y = 7

3) equation of the line that passes threw AD

y = 5

conclusion

the quadrilateral has two parallel sides and two congruent sides, so it is a isosceles trapezoid

3 0

3 years ago

How many trolley cars are needed to hold all the passengers? Write as a mixed number

Oksanka [162]

Answer:

$46\frac{1}{8}$

Step-by-step explanation:

Formulate

$1845\div40$

Calculate

$\frac{1845}{40}$

Cross out the common factor

$\frac{369}{8}$

Write $\frac{369}{8}$ as a mixed fraction

$46\frac{1}{8}$

I hope this helps you

:)

7 0

3 years ago

What is the value of 6/x + 2x2, when x = 3?

aliina [53]

Replace x = 3 into 6/x + 2x^2

6/x + 2x^2

=6/3 + 2 (3)^2
= 2 + 2(9)
= 2 + 18
= 20

3 0

3 years ago

You drop a ball from a height of 98 feet. At the same time, your friend throws a ball upward. The polynomials represent the heig

Lynna [10]

Answer: The polynomial is 92 - 46t

92,92,-46,46

Step-by-step explanation:

5 0

3 years ago