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3 years ago

13

Does anyone have answers for the Unit 6-Lesson 9: Rational Expressions and Functions Unit Test? I really need them, and will giv

e a lot of points for the answers.

1 answer:

GalinKa [24]3 years ago

5 0

Answer:

on edge?

Step-by-step explanation:

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What is the simplified form of the expression 11[6^2/(5^2-4^2)+7]

earnstyle [38]

Answer:

121

Step-by-step explanation:

A calculator can answer this for you.

_____

Following the steps of the <em>order of operations</em>, you evaluate inner parentheses first. The exponents are the first to be evaluated there.

11[6^2/(5^2-4^2)+7]

= 11[6^2/(25 -16)+7]

= 11[6^2/9 +7]

Then you do the exponent ...

= 11[36/9 +7]

Now you do the division ...

= 11[4 +7]

And finally, you can finish up the outer parentheses ...

= 11·11

= 121

4 0

3 years ago

Which polynomial could have the following graph?

katrin2010 [14]

ANSWER

y=(x+3)(x-1)(x-5)

EXPLANATION

The given polynomial has x-intercepts at x=-3,x=1,x=5

These are called the zeros of this polynomial.

We can use the factor theorem to obtain the polynomial in factored form.

The polynomial in factored form is of the form

y=a(x+3)(x-1)(x-5)

The polynomial rises on the left and keep rising on the right.

This implies that, the 'a' is positive.

Therefore

y=(x+3)(x-1)(x-5)

The correct choice is the first option.

8 0

4 years ago

A group of student organized a car wash to raise money for a local charity.the student charged $5 for each car they washed. In 3

Alex Ar [27]

$5 each car 3 hours = 12 cars ÷3 ÷3 1 hours = 4 cars ×8 ×8 8 hours = 32 cars 32 cars × $5 per car = $160 They earned $160 in 8 hours, from washing 32 cars.

7 0

3 years ago

30 PT AND BRAINLIEST (pics are below)

Komok [63]

1) C 392 in2

2) 125cm³

3) D 64 in3

7 0

3 years ago

Find the value of x in the isosceles triangle shown below.

guajiro [1.7K]

Answer:

B) $x = \sqrt{60}$

Step-by-step explanation:

1. As you can see from the image, there are two right triangles in the isosceles triangle. The base of each right triangle is 2 (because 4 ÷ 2 = 2), and the hypotenuse is 8.

2. Let's use Pythagorean Theorem to find the height of each right triangle, which will also give us the height of the isosceles triangle: $a^2 + b^2 = c^2$ , where a = height, b = base, and c= hypotenuse.

$a^2 + 2^2 = 8^2$
$a^2 + (2*2) = (8*8)$
$a^2 + 4 = 64$ (Simplify both sides of the equation)
$a^2 + 4 - 4 = 64 - 4$ (Subtract 4 from both sides)
$a^2 = 60$
$\sqrt{a^2} = \sqrt{60}$ (Take square root of both sides
$a = \sqrt{60}$

3. The√(60) is the height of each right triangle, and it's also the height of the isosceles triangle. Therefore, the answer is B) x = √60.

8 0

3 years ago