3 years ago

(7x+3)(x-9) need help

1 answer:

8 0

7x^2-63x+3x-27=0

Simplify.

7x^2-60x-27=0

To find value of x, 7x+3=0
x-9=0

x1=-3/7
x2=9

Substitute back in equation to find the answer either x1 or x2

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1/2 log2x=3log23 rewrite with out using logarithmic

Brums [2.3K]

Answer:

729

Step-by-step explanation:

$\frac{1}{2}log_{2}x=3log_{2}3 \\$

$log_{2}\sqrt{x} =log_{2}3^{3}$

$\sqrt{x} =27 \\$

x=27²=729

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2 years ago

Find the equation of the line that has a slope of 3 and passes through (-1, 2)

Nadusha1986 [10]

Answer:

y= 3x+5

Step-by-step explanation:

start with the linear equation formula

y= mx+b

indentify what you already have.

x= -1 and y= 2 and m(slope)= 3

We are solving for b, so plug in what you have.

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3 years ago

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Mice21 [21]

Answer:

10x+8

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

The food is made up of 1 part sugar and 4 parts water. She uses 34 cup of sugar to make the hummingbird food. How much water sho

mash [69]

34*4=136 cups of water

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2 years ago

Using the two way table(in pic) what percentage of the students that do NOT like to travel out of state like camping? Round to t

kramer

Using it's concept, it is found that the percentage of the students that do NOT like to travel out of state that like camping is:

B. 34%.

<h3>What is a percentage?</h3>

The percentage of an amount a over a total amount b is given by a multiplied by 100% and divided by b, that is:

$P = \frac{a}{b} \times 100\%$

In this problem, there are 112 students that do not like traveling out of the state, and of those, 38 like camping, hence the percentage is:

$P = \frac{38}{112} \times 100\% = 34\%$

Hence option B is correct.

More can be learned about percentages at brainly.com/question/10491646

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1 year ago