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irina1246 [14]
3 years ago
8

State whether the graph of each linear relationship is a solid line or set of unconnected points explain your reasoning the rela

tionship between the number of $12 DVDs you buy and the total cost
Mathematics
1 answer:
notsponge [240]3 years ago
4 0
Hello! The graph of each linear equation is a set of unconnected points. The thing is that with a solid line, you can have things in-between whole numbers. However, you can’t have a fraction of a movie. Dotted points show that you can’t have in between values and that only whole quantities count.
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1. The value of 25 x (8.5) is:<br> a.<br> More than 250<br> b. Less than 250
Alinara [238K]
25x(8.5)=212.5 therefore being b. Less than 250
3 0
3 years ago
Find the value of x. Then find the angle measures of the polygon. ​
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4 0
3 years ago
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Paul invested three times as much money in the account paying 5% interest then he did in an account paying 4% of the total inter
noname [10]

Given

Paul invested three times as much money in the account paying 5% interest then he did in an account paying 4%.

Total interest paid was $475

Find out  he invest in each.

To proof

Let us assume that Paul invested  in an account paying 4% be = x

As given in the question

Paul invested three times as much money in the account paying 5% interest then he did in an account paying 4%.

Let us assume that Paul invested  in an account paying 5% be = 3x

Total interest paid = $475

First convert 4% in the decimal form

=\frac{4}{100}

= 0.04

First convert 5% in the decimal form

=\frac{5}{100}

= 0.05

Than the equation become in the form

0.04x + 0.05 × 3x = 475

0.04x + 0.15x = 475

0.19x = 475

x = $2500

Paul invested  in an account paying 4% be = $2500

Paul invested  in an account paying 5% be = $7500

Hence proved






5 0
3 years ago
What must be true about the discriminant of this quadratic equation for the mentioned values of k? Assume p&gt;0.
Goryan [66]
<span>1/(4p)(x-h)^2+k=0

</span><span>1/(4p)(x-h)^2 = -k
</span>
<span>k(4p)(x-h)^2+1=0

4kp (x^2 - 2xh + h^2) + 1 = 0

4kp x^2 - 8kph x + 4kph^2+1 = 0

D = (-8kph)^2 - 4(4kp)(4kph^2+1) = 64(kph)^2 - 64(kph)^2 - 16kp
D = -16kp < 0

SO discriminant is always less than 0
</span>
4 0
3 years ago
10. What percent of 32 is 15? If necessary, round to the nearest tenth of a percent.
ankoles [38]

Answer:

46.9

Step-by-step explanation:

i looked it up

8 0
3 years ago
Read 2 more answers
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