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Deffense [45]
2 years ago
11

Evaluate the expression. Write your answer in scientific notation. (7 x 10^-3) + 0.32 – (6 x 10^-2) ​

Mathematics
1 answer:
alukav5142 [94]2 years ago
3 0

Answer:

2.67*10^-1

Step-by-step explanation:

(7 x 10^-3) + 0.32 – (6 x 10^-2) ​

= -.053+.32

= .267

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The vertex of the graph of a quadratic function is (3, 1) and the y-intercept is (0, 10). Which of the following is the
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brainly.com/question/3584775#citedsource

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The length of one base of a trapezoid is 19 less than five times the length of the other base. If the trapezoid has a height of
ycow [4]

The length of the longer base is 41 ft.

<u><em>Explanation</em></u>

Lets assume, length of one base is x ft.

As, another base is 19 less than five times the length of this base, so the length of another base = (5x- 19) ft.

The trapezoid has a height of 18 ft and area of 477 ft²

Formula for Area of trapezoid, A=\frac{1}{2} (a+b)*h , where a, b = Two bases of trapezoid and h = height of the trapezoid.

Given in the question: A= 477 and h= 18

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So, according to the above formula...

A= \frac{1}{2}(a+b)h\\\\ 477=\frac{1}{2}(x+5x-19)*18\\\\ 477=9(6x-19)\\\\477= 54x-171\\\\477+171=54x\\\\648=54x\\\\x=\frac{648}{54} = 12

So, length of one base is 12 ft  and another base =(5*12-19)ft =(60-19)ft = 41 ft

That means, the length of the longer base is 41 ft.



8 0
3 years ago
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