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2 years ago

Evaluate l-a^2l, given a = 5, b = -3, and c= -2.

Mathematics

2 answers:

mash [69]2 years ago

6 0

THE ANSWER ISSS
25 WHICH IS C

dimulka [17.4K]2 years ago

3 0

I’m sorry bro I wish I knew

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Ella bought some key chains and spent a total of $24.Each key chain cost the same whole-dollar amount.She bought between 7 and 1

Dennis_Churaev [7]

Ella bought 9 key chains

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3 years ago

What is the ratio of the area of the inner square to the area of the outer square?

Anastasy [175]

Answer:

$\frac{(a-b)^2+b^2}{a^2}$

Step-by-step explanation:

Since, By the given diagram,

The side of the inner square = Distance between the points (0,b) and (a-b,0)

$=\sqrt{(a-b-0)^2+(0-b)^2}$

$=\sqrt{(a-b)^2+b^2}$

Thus the area of the inner square = (side)²

$=(\sqrt{(a-b)^2+b^2})^2$

$=(a-b)^2+b^2\text{ square cm}$

Now, the side of the outer square = Distance between the points (0,0) and (a,0),

$=\sqrt{(a-0)^2+0^2}$

$=\sqrt{a^2}=a$

Thus, the area of the outer square = (side)²

$=a^2\text{ square cm}$

Hence, the ratio of the area of the inner square to the area of the outer square

$=\frac{(a-b)^2+b^2}{a^2}$

4 0

2 years ago

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If p varies directly with q, and p = 10 when q = 5, what is the value of p when q = 20

Inessa [10]

The value of p would be 40. This is because the ratio of p:q = 10:5. this could be simplify into p:q = 2:1. Applying the ratio p:20 = 2:1, P=40.

8 0

3 years ago

Verify: sec^2x+tan^2x=2sec^2x-1

Jlenok [28]

Answer:

see explanation

Step-by-step explanation:

Using the identity

tan²x = sec²x - 1

Consider left side

sec²x + tan²x

= sec²x + sec²x - 1

= 2sec²x - 1

= right side , thus verified

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2 years ago

Write each rate as a fraction in lowest terms. <br><br>4.20 for 36 potatoes

sweet-ann [11.9K]

$4.20 / 36 = $0.11667 per potato<span>
</span>

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3 years ago

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