3 years ago

Solve the quadratic equation x2−5x=−20 by completing the square.

Mathematics

1 answer:

elena-14-01-66 [18.8K]3 years ago

5 0

Answer:

x = $\frac{5}{2}$ + $\sqrt[i]{55}$ /2

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The design on Santana’s wall includes 16 pink stripes and 20 green stripes. Find the ratio of pink stripes to green stripes.

tia_tia [17]

The ratio is 4:5
Divide both terms by 4
16/4 =4
20/4=5

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3 years ago

The city of Hampton received money for improvements of the towns park. the park Committee put a random sample of 75 presidents f

Natasha2012 [34]

Answer:about a third of the residents prefer a park improvement of more trees

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Solve and type in a different form by using the given theorems of logarithms

scoray [572]

$\log\left(\frac{10}{y}\right) = \log(10) - \log(y)$

The general rule is

$\log\left(\frac{A}{B}\right) = \log(A) - \log(B)$

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3 years ago

Brian has 75 pieces of candy 45 pieces of his candy or chocolate what percentage of his candy is chocolate

Alik [6]

Answer:

60%

Step-by-step explanation:

45 pieces out of 75 pieces are chocolate

45/75

Divide: 45/75 = 0.6

To get percentage from a decimal, move the decimal point to the right two place values

0.6 => 60%

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4 0

3 years ago

Read 2 more answers

-(y-7)=14 solve the following equation

enyata [817]

First, distribute the negative sign and get -y + 7 = 14

then subtract 7 from both sides and get -y = 7

Divide both sides by -1 and get y = -7

Hope this helps :)

3 0

3 years ago