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3 years ago

How high is the stack of the two books? novel and 3/4 inches and dicitonary 41/2

1 answer:

5 0

3/4 + 4 1/2 = 5 1/4

If you mean that the dictionary is 41/2 then the answer = 3/4 + 20 1/2 = 21 1/4. That's a big diction though and not likely measured correctly.

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Determine the value of x in the diagram? A.32 B.10 C.20 D.16

Gnesinka [82]

Answer:

B. 10

Step-by-step explanation:

These are vertical angles meaning they are also equal.

$4x-12=2x+8\\2x-12=8\\2x=20\\x=10$

6 0

3 years ago

Read 2 more answers

Which of the following is a factor of f(x) = 3x3 + 8x2 − 87x + 28? (5 points)

N76 [4]

Answer

(x - 4)

Step by step explanation

To find the factors, plug in the x values in the given equation and see which value of x makes the equation equal to zero.

Here (x - 4) is a factor.

Therefore, x = 4

when we plug in x = 4 in the given expression, we get zero.

Let's check it out.

3(4)^3 + 8 (4)^2 - 87(4) + 28

192 + 128 - 348 + 28

348 - 348

The answer is (x - 4)

Thank you.

5 0

3 years ago

You get scores of 72 and 88 on 2 science tests. You have to have an average of at least 85 to not be grounded by your parents. W

svetoff [14.1K]

Answer:

Step-by-step explanation:

72+88+95=255:3= 85

7 0

3 years ago

Read 2 more answers

15 dived by 6 2/3 A) 2 3/4 B) 100 1/4 C) 2 1/4 D) 100

Lady bird [3.3K]

15 divided by 6 2/3 is 2.25. Or 2 1/4. Pick C

4 0

3 years ago

If x>2,then x2-x-6/x2-4=

statuscvo [17]

$\frac{x^2-x-6}{x^2-4}=(*)\\------------\\x^2-x-6=0\\a=1;\ b=-1;\ c=-6\\\Delta=b^2-4ac;\ \Delta=(-1)^2-4\cdot1\cdot(-6)=1+24=25\\\\x_1=\frac{-b-\sqrt\Delta}{2a};\ x_2=\frac{-b+\sqrt\Delta}{2a}\\\\x_1=\frac{1-\sqrt{25}}{2\cdot1}=\frac{1-5}{2}=\frac{-4}{2}=-2\\\\x_2=\frac{1+\sqrt{25}}{2\cdot1}=\frac{1+5}{2}=\frac{6}{2}=3\\\\x^2-x-6=(x+2)(x-3)$
$---------------------\\x^2-4=x^2-2^2=(x-2)(x+2)\\-------------------\\\\(*)=\frac{(x+2)(x-3)}{(x-2)(x+2)}=\frac{x-3}{x-2}$

6 0

3 years ago