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2 years ago

Please help asap! One question! Please help me!!

Mathematics

1 answer:

Anna [14]2 years ago

4 0

Answer:

false, false

Step-by-step explanation:

C' is (5, 4)

A' is (5, -4)

Each side of the triangle is larger in the image, and the area is larger.

Answer: false, false

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The diameter (d) of a circle with a circumference of 440 cm is: Use Π = 22/7

elena-s [515]

Answer:

Step-by-step explanation:

c=2*22/7r

440=44/7r

440*7/44=r

70=r

d=2r

d=2*70

d=140 cm

5 0

1 year ago

Read 2 more answers

Austin has 125% more books than his younger sister. If his sister has 24 books, how many books does he have? Write your proporti

Julli [10]

Answer:

30 books

Step-by-step explanation:

125%= 1.25

1.25 times 24= 30

6 0

2 years ago

Read 2 more answers

PLEASE!! I REALLY NEED HELP WITH THIS!!!

ioda

Do you have an example of what the "Constant of proportionality" would be for a different question?

7 0

3 years ago

Evaluate the following integral using trigonometric substitution

serg [7]

Answer:

The result of the integral is:

$\arcsin{(\frac{x}{3})} + C$

Step-by-step explanation:

We are given the following integral:

$\int \frac{dx}{\sqrt{9-x^2}}$

Trigonometric substitution:

We have the term in the following format: $a^2 - x^2$ , in which a = 3.

In this case, the substitution is given by:

$x = a\sin{\theta}$

$dx = a\cos{\theta}d\theta$

In this question:

$a = 3$

$x = 3\sin{\theta}$

$dx = 3\cos{\theta}d\theta$

$\int \frac{3\cos{\theta}d\theta}{\sqrt{9-(3\sin{\theta})^2}} = \int \frac{3\cos{\theta}d\theta}{\sqrt{9 - 9\sin^{2}{\theta}}} = \int \frac{3\cos{\theta}d\theta}{\sqrt{9(1 - \sin^{\theta})}}$

We have the following trigonometric identity:

$\sin^{2}{\theta} + \cos^{2}{\theta} = 1$

$1 - \sin^{2}{\theta} = \cos^{2}{\theta}$

Replacing into the integral:

$\int \frac{3\cos{\theta}d\theta}{\sqrt{9(1 - \sin^{2}{\theta})}} = \int{\frac{3\cos{\theta}d\theta}{\sqrt{9\cos^{2}{\theta}}} = \int \frac{3\cos{\theta}d\theta}{3\cos{\theta}} = \int d\theta = \theta + C$

Coming back to x:

We have that:

$x = 3\sin{\theta}$

$\sin{\theta} = \frac{x}{3}$

Applying the arcsine(inverse sine) function to both sides, we get that:

$\theta = \arcsin{(\frac{x}{3})}$

The result of the integral is:

$\arcsin{(\frac{x}{3})} + C$

8 0

2 years ago

Write the word sentence as an inequality.

garik1379 [7]

Answer:

-5b <= -34

Step-by-step explanation:

The inequality phrase, "at most" is same as "less than or equal to". So the algebraic inequality would be -5b <= -34. To solve for b, divide both sides by -5 and make sure to switch the inequality symbol to >= when dividing or multiplying inequalities by a negative number. So b >= 34 / 5.

4 0

2 years ago