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iragen [17]
3 years ago
14

ALGEBRA 1:

Mathematics
2 answers:
krok68 [10]3 years ago
8 0
The answer is

: 4x^2-36

I AM IN ALGEBRA 1 , I HAVE A 104% !! I CAN HELP YOU !!!
inna [77]3 years ago
7 0
Distribution method
(2x+6)(2x-6)
=4x^2-12x+12x-36
=4x^2-36
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What is the slope and y-intercept of the graph? (write your answer in simplest form)
Romashka-Z-Leto [24]

Answer:

Slope: 1/1.5

Y-intercept: -1

Step-by-step explanation:

7 0
3 years ago
Please help me with this math problem. I have to Use the quadratic formula to solve each equation.
Ierofanga [76]

You have to solve the given expression for q:

2q^2-8=3q

This expression has a quadratic term, which means that it is a quadratic equation. To find the value or values of q, you have to use the quadratic equation, using "q" as the variable instead of "x"

q=\frac{-b\pm\sqrt{b^2-4ac}}{2a}

Where

a is the coefficient of the quadratic term

b is the coefficient of the q term

c is the constant

- First, zero the equation by passing 3q to the left side of the equal sign:

\begin{gathered} 2q^2-8=3q \\ 2q^2-8-3q=3q-3q \\ 2q^2-3q-8=0 \end{gathered}

For this equation the coefficients are:

a= 2

b= -3

c= -8

Replace them in the formula and solve:

\begin{gathered} q=\frac{-b\pm\sqrt{b^2-4ac}}{2a} \\ q=\frac{-(-3)\pm\sqrt{(-3)^2-4*2*(-8)}}{2*2} \\ q=\frac{3\pm\sqrt{9+64}}{4} \\ q=\frac{3\pm\sqrt{73}}{4} \end{gathered}

Next, to determine each possible value of q, you have to solve the sum and difference separately:

Sum

\begin{gathered} q=\frac{3+\sqrt{73}}{4} \\ q=2.886\cong2.9 \end{gathered}

Difference

\begin{gathered} q=\frac{3-\sqrt{73}}{4} \\ q=-1.386\cong-1.4 \end{gathered}

The possible solutions for the given equation are q=2.9 and q=-1.4

4 0
1 year ago
Lucille has a collection of more than 500 songs on her phone that have a mean duration of 215 seconds
Elena-2011 [213]

Answer:

5

Step-by-step explanation:

The sample mean is given by dividing the standard deviation by the squareroot of SRS

Given standard deviation of 35 and SRS of 49, we know that the squareroot of 49 is 7 ie √49=7

By substituting the given values we can obtain the sample mean as follows.

sample mean=35/√49=35/7=5

The sample mean for the given question is hence 5

8 0
3 years ago
You are assigned 32 math questions for homework. You complete 87.5% of these before dinner. How many questions do you have left
Alexxx [7]

Answer:

4 questions

Step-by-step explanation:

To find a percentage of a number, you move the decimal mark all the way to the left.

87.5% becomes 0.875

Next you multiply 32 by 0.875 to find the percentage of questions that are completed

32 x 0.875 = 28

28 out of 32 questions have been solved, so now you subtract 28 from 32

32 - 28= 4

There are 4 questions to complete

7 0
3 years ago
Read 2 more answers
To find the value of the expression x + 0.07 when x has the value of 0.0002
Dvinal [7]

Answer:

0.07

<u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u>+</u><u> </u><u> </u><u> </u><u>0.0002</u>

<u> = 0.0702</u>

Step-by-step explanation:

hope it helped u buddy

4 0
3 years ago
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