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3 years ago

Answer the below please

Mathematics

1 answer:

Slav-nsk [51]3 years ago

3 0

A) 0 < x < 10

-Domain is the X values
-Since the line is shown to cross to the negative side of the graph, I believe A is the correct answer

that or all whole numbers (C)

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Given a rectangle with side lengths of and , what is its area?

maw [93]

B = 2x+4
H = 3x-5

A = bh
= (2x+4)(3x-5)
= (2x)(3x)+(2x)(-5)+(4)(3x)+(4)(-5)
= 6x^2 - 10x + 12x - 20
= 6x^2 + 2x - 20

So the answer is A (6x^2 + 2x - 20) (i think)

8 0

3 years ago

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PLZ HELP! Need this FAST! Plz SHOW YOUR WORK! Thx so much!

Ugo [173]

Let's take this step by step. First, let's find the area of the triangle:
$A_t = \frac{1}{2}bh = \frac{1}{2}(13-7)(4+4)= \frac{1}{2}(6)(8) = 24cm^2$

Small rectangle:
$A = lw = 7*4 = 28cm^2$

Big rectangle:
$A = lw = 10*4 = 40 cm^2$

Let's add all the areas up:
$A_T = 24+28+40 = 92cm^2$

So, your answer is: The area of this figure is 92 cm².

3 0

3 years ago

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Solve the equation. then check your solution. startfraction x over 90 endfraction = startfraction 7 over 9 endfraction a. 35 c.

8090 [49]

We get that the value of x is option (b) 70.

We are given an equation:

x / 90 = 7 /9.

An equation is an expression that has an equality sign in between.

For example: 2 x + 4 y = 6 or 4 x + 8 y = 9

We have to solve the equation to find the value of x.

First, cross multiplying the numbers, we get that:

x × 9 = 7 × 90.

Now simplifying the expression, we get that:

9 x = 630

Solving the expression to get the value of x:

x = 630 / 9

x = 70.

Therefore, we get that the value of x is option (b) 70.

Learn more about equation here:

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2 years ago

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Factor this polynomial.

Inessa05 [86]

Answer: D. -1(3x+2)(x+1)

Step-by-step explanation: First, use the F.O.I.L. method (First, Outer, Inner, Last). Then combine all your like terms. After, multiply the whole outcome by negative one. So, 3 $x^{2}$ turns into -3 $x^{2}$ ; 5x turns into -5x; and 2 is -2. BOOM! you got the exact right answer.

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2 years ago

If the edge length of a cube is 11 feet, what is the correct way to write the expression to represent the volume of the cube in

satela [25.4K]

Answer:

(11 ft)³

Step-by-step explanation:

Given the shape is a cube, all of its sides are the same.

The formula for the volume of a cube is V = s³ where "s" represents the edge length.

Substitute "s" for 11 ft.

V = s³

V = (11 ft)³

In exponential form, do not solve for the volume. Leave the expression as

(11 ft)³

Without the units, the answer is 11³

3 0

3 years ago