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3 years ago

7

Lisa purchased a hat for $10, a purse for $20, and a book for $23. The sales tax rate was 7.2 percent. What was the total amount

she paid? A. $0.53 B. $3.82 C. $53 D. $56.82

1 answer:

barxatty [35]3 years ago

5 0

D is your answer because you add all the prices and multiply them by .072 then add that number to all the amounts added together

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Round 0.485 correct to 1 significant figure

yanalaym [24]

Answer:

0.5

Step-by-step explanation:

the first significant figure is the non zero

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2 years ago

Hi, may someone help me with this question? Thank you!:)<br><br> “If f(x) = x^2 + 7, find f(x+2)”

finlep [7]

Answer:

=x^2 +4x+11

Step-by-step explanation:

f(x) = x^2 + 7,

Replace x with x+2

f(x+2) = (x+2)^2 + 7

= (x+2)(x+2) +7

FOIL

= x^2 +2x+2x+4 +7

Combine like terms

=x^2 +4x+11

5 0

3 years ago

Read 2 more answers

Find the solutions of the quadratic equation 14x^2+9x+10=014x

Vesnalui [34]

Answer:

Option B. $x=-\frac{9}{28}(+/-)\frac{\sqrt{479}}{28}i$

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form $ax^{2} +bx+c=0$ is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$14x^{2}+9x+10=0$

so

$a=14\\b=9\\c=10$

substitute in the formula

$x=\frac{-9(+/-)\sqrt{9^{2}-4(14)(10)}} {2(14)}$

$x=\frac{-9(+/-)\sqrt{-479}} {28}$

Remember that

$i=\sqrt{-1}$

substitute

$x=\frac{-9(+/-)\sqrt{479}i} {28}$

$x=-\frac{9}{28}(+/-)\frac{\sqrt{479}}{28}i$

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3 years ago

The total cost of eight tickets to a water park is $158.80. Each ticket costs the same amount. What is the cost of one ticket?

e-lub [12.9K]

Answer:

19.85

Step-by-step explanation:

158.80 divided by 8 is 19.85

8 0

3 years ago

Struggling please help me anyone ‍♂️

asambeis [7]

Answer:

x-5

Step-by-step explanation:

So glad I could help! Here's why well we do definitely need to factor the area.

Because when factoring we have to expressions multiplying by each other.

A=LxW

Factored Expression=(x+5)(x-5)

See now it's LxW.

IF that makes sense and helped you please hit Thank button!

Also mark brainliest answer.

Glad I could help!

8 0

3 years ago