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Viktor [21]
3 years ago
7

Do the expressions have only one term. write yes or no 1. x 2. p/4 3. 23-w

Mathematics
1 answer:
MrRa [10]3 years ago
8 0
They all only have 1 term.
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Which are solutions of x2 + 5x = 2? Check all that apply.
ANEK [815]

we have

x^{2} +5x=2

Complete the square. Remember to balance the equation by adding the same constants to each side

x^{2} +5x+2.5^{2}=2+2.5^{2}

x^{2} +5x+6.25=2+6.25

x^{2} +5x+6.25=8.25

Rewrite as perfect squares

(x+2.5)^{2}=8.25

Square Root both sides

(x+2.5)=(+/-)\sqrt{8.25}

x=(+/-)\sqrt{8.25}-2.5

\sqrt{8.25}=\frac{\sqrt{33}}{2}

substitute

x=(+/-)\frac{\sqrt{33}}{2}-2.5

therefore

<u>the answer is</u>

the solutions are

x1=-2.5+\frac{\sqrt{33}}{2} or x1=\frac{-5+\sqrt{33}}{2}

x2=-2.5-\frac{\sqrt{33}}{2} or x2=\frac{-5-\sqrt{33}}{2}

7 0
3 years ago
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andrey2020 [161]

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Step-by-step explanation:

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3 years ago
Which of the following shows the polynomial below written in descending order?
Juli2301 [7.4K]

Answer:

A

Step-by-step explanation:

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If candy canes cost .89 a dozen,how much would it cost to buy candy canes for a school with 400 students
IRINA_888 [86]
400/12 = # of dozen needed
.89 * # of dozen needed
400/12=33.33 need 34 dozen
.89*34=$30.26
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Step-by-step explanation:

3 0
4 years ago
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