3 years ago

A negative number is raised to an even exponent. The result is _____.

Mathematics

2 answers:

pogonyaev3 years ago

8 0

The answer is positive

agasfer [191]3 years ago

3 0

Positive would be the correct answer.

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A survey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand X aspirin. How many doctors use brand X aspirin

swat32

You would use cross multiplication:

X/2,000 = 3/5
Multiply: 2,000*3= 6,000
Divide: 6,000/5
Answer: 1,200 doctors use brand x

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3 years ago

(3x+2)∧2=9 how do i solve this in the square root property

Irina18 [472]

$(3x+2)^2=9 \\\\9x^2+12x+4-9=0\\\\9x^2+12x-5=0\\\\a=9,\ \ b=12, \ \ c=-5$

$x_{1}=\frac{-b-\sqrt{b^2-4ac}}{2a}=\frac{-12-\sqrt{12^2-4 \cdot9 \cdot (-5)}}{2 \cdot 9}=\frac{-12-\sqrt{144+180}}{18}=\\\\=\frac{-12-\sqrt{324}}{18}=\frac{-12-18}{18}=\frac{-30}{18}=-\frac{5}{3}\\\\x_{2}=\frac{-b+\sqrt{b^2-4ac}}{2a}=\frac{-12+\sqrt{12^2-4 \cdot9 \cdot (-5)}}{2 \cdot 9}=\frac{-12+18}{18}=\frac{6}{18}=\frac{1}{3} \\\\Answer: \ x=-\frac{5}{3}\ \ and \ \ x=\frac{1}{3}$

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3 years ago

Select all sets of lengths that would form a right triangle.

VARVARA [1.3K]

Answer:

theres no picture ill still answer if you put a picture or somthing of the triangle

Step-by-step explanation:

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3 years ago

Claudia opened a savings account with $325 she says $100 per month write an equation to determine how much money D, she has afte

ExtremeBDS [4]

Answer:

325 + 100*M = D

Step-by-step explanation:

initial amount + savings per month * months = total amount in account

325 + 100*M = D

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3 years ago

If a line contains the point (0, -1) and has a slope of 2, then which of the following points also lies on the line?

ruslelena [56]

The answer is B because y=2x-1

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3 years ago

Read 2 more answers