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2 years ago

X2 + 6x +9 x² - 4x - 21

Mathematics

1 answer:

Jlenok [28]2 years ago

6 0

Answer:

=8×+9

=(x+3)×(x-7)

Step-by-step explanation:

i think I'm correct

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What is 8 divided by 1/2

patriot [66]

Answer:

Step-by-step explanation:

$8 \div \frac{1}{2} = 8 \times \frac{2}{1}$

Because dividing by a fraction is the same thing as multiplying by reciprocal

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2 years ago

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If x=3 and y=2 find the value of x power y + y power x

xxMikexx [17]

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Step-by-step explanation:

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3 years ago

HELP ASAPPP !<br>select the correct answer from each drop-down menu.

VARVARA [1.3K]

Answer:

3.8; 4

Step-by-step explanation:

In this exercise, you're are required to find the missing values by performing some arithmetic calculations.

<u>For the first part;</u>

Let the missing value be X

Translating the word problem into an algebraic expression, we have;

$X = 2000 * 1.9 * 10^{-6}$

$X = 3.8 * 10^{-3}$

<u>For the second part;</u>

Let the missing value be Y.

$3.8 * 10^{-3} = Y * 9.5 * 10^{-4}$

$X = \frac {3.8 * 10^{-3}}{9.5 * 10^{-4}}$

$X = 4$

Therefore, the complete sentence would be written as follows;

$3.8 * 10^{-3}$ is 2000 times greater than $1.9 * 10^{-6}$ . It is also 4 times greater than $9.5 * 10^{-4}$

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2 years ago

The measure of angle ø is 3pi/2. the measure of its reference angle is pi/ ?, and tan ø is ?

kondaur [170]

Then the vertex is at (h, k) = (2, –3) and the value of p is –3. Since y is squared and p is negative, then this is a sideways parabola that opens to the left. This puts the focus 3 units to the left of the vertex.

vertex: (2, –3); focus: (–1, –3)

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2 years ago

Y = 4x+2<br>y = -2x - 3

Dima020 [189]

Solve for x and y

y = 4x+2

y = -2x - 3

<h3><u>Answer:</u></h3>

$x = \frac{-5}{6}$ and $y = \frac{-4}{3}$

<h3><u>Solution:</u></h3>

Given equations are:

y = 4x+2 --------- eqn 1

y = -2x - 3 ---------- eqn 2

We have to solve both equations and find values of "x" and "y"

Substitute eqn 1 in eqn 2

4x + 2 = -2x - 3

Combine like terms we get,

4x + 2x = -3 - 2

On solving,

6x = -5

$x = \frac{-5}{6}$

Substitute "x" value in eqn 1

$y = 4(\frac{-5}{6}) + 2\\\\y = \frac{-20}{6} + 2\\\\y = \frac{-20 + 12}{6}\\\\y = \frac{-8}{6} = \frac{-4}{3}$

Thus $x = \frac{-5}{6}$ and $y = \frac{-4}{3}$

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3 years ago