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Daniel [21]
3 years ago
11

Solve for x in the equation x2 - 4x-9= 29.

Mathematics
1 answer:
alukav5142 [94]3 years ago
7 0

Answer:

I think the first one

Step-by-step explanation:

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3. Miss. Mead pays Miss. Adams $160.00 per week. She works 40 hours per week. Miss. Adams
Leno4ka [110]

Answer:

B. $18.00

Step-by-step explanation

160/4 divide 160 by 4 to see how much Miss Adams makes and hour

She makes $4 an hour

multiply this ($4) by her idle time (4.5) hours to get $18

8 0
3 years ago
PAGE 6
Ann [662]

a) A mathematical equation that represents the total cost, t, for a adult tickets and c child tickets is t = $5a + $3c.

b)No, she cannot buy 2 adult tickets and 7 child tickets.

<h3>Define equation.</h3>

Mathematical equations are relationships between two expressions that are equal on both sides of the equal to sign. An equation is, for instance, 3y = 16.

Given,

Maymont Middle School is selling tickets for the winter musical. Adult tickets cost $5 each and child tickets cost $3 each.

a) Mathematical equation:

represents the total cost, t, for a adult tickets and c child tickets

t = $5a + $3c

A mathematical equation that represents the total cost, t, for a adult tickets and c child tickets is t = $5a + $3c.

b) Ciera has $28.

a = 2 c = 7

Equating values in equation,

= $5(2) + $3(7)

= $10 + $27

= $37

No, she cannot buy 2 adult tickets and 7 child tickets.

To learn more about equation, visit:

brainly.com/question/10413253

#SPJ1

4 0
1 year ago
7) A store has a sale for 10% off. You decide to buy a $17 DVD.
kondaur [170]

Answer:

you save 1.70 and spend 15.30

Step-by-step explanation:

8 0
3 years ago
Help help help help help
dem82 [27]
I believe it should be B because it says one more than twice the number so that means addition. Also it says twice the number so that should be 2w.
I’m not 100% sure but it is my best guess
7 0
3 years ago
According to USA​ Today, customers are not settling for automobiles straight off the production lines. As an​ example, those who
MrMuchimi

Answer:  (24980.25,\ 25419.75)

Step-by-step explanation:

The confidence interval for population mean is given by :-

\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}

Given : Sample size : n= 179 , which is a large sample , so we apply z-test .

Sample mean : \overline{x}=20200+5000=25200

Standard deviation : \sigma= 1500

Significance level : \alpha=1-0.95=0.05

Critical value : z_{\alpha/2}=1.96

Now, a confidence interval at the 95% level of confidence will be :-

25200\pm(1.96)\dfrac{1500}{\sqrt{179}}\\\\\approx25200\pm219.75\\\\=(25200-219.75,\ 25200+219.75)\\\\=(24980.25,\ 25419.75)

8 0
3 years ago
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