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3 years ago

What is the best estimate of the measure of the angle shown?

Mathematics

2 answers:

fenix001 [56]3 years ago

8 0

Answer:

Step-by-step explanation:

We know it is less than a right angle or 90 degrees It is bigger than 1/2 of a right angle or bigger than 45 degrees

The best estimate is 65 degrees

bekas [8.4K]3 years ago

5 0

Answer:

Step-by-step explanation:

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What is the 18th term of the arithmetic

Irina18 [472]

Answer:

-66

Step-by-step explanation:

a1 = 2

n = 18

d = - 4

a18 = a1 + (n - 1) * d

a18 = 2 + (18 - 1)*(-4)

a18 = 2 + 17*-4

a18 = 2 - 68

a18 = -66

3 0

3 years ago

The curves y = √x and y=(2-x) and the Cartesian axes form two distinct regions in the first quadrant. Find the volumes of rotati

makkiz [27]

Answer:

Step-by-step explanation:

If you graph there would be two different regions. The first one would be

$y = \sqrt{x} \,\,\,\,, 0\leq x \leq 1 \\$

And the second one would be

$y = 2-x \,\,\,\,\,, 1 \leq x \leq 2$ .

If you rotate the first region around the "y" axis you get that

$A_1 = 2\pi \int\limits_{0}^{1} x\sqrt{x} dx = \frac{4\pi}{5} = 2.51$

And if you rotate the second region around the "y" axis you get that

$A_2 = 2\pi \int\limits_{1}^{2} x(2-x) dx = \frac{4\pi}{3} = 4.188$

And the sum would be 2.51+4.188 = 6.698

If you revolve just the outer curve you get

If you rotate the first region around the x axis you get that

$A_1 =\pi \int\limits_{0}^{1} ( \sqrt{x})^2 dx = \frac{\pi}{2} = 1.5708$

And if you rotate the second region around the x axis you get that

$A_2 = \pi \int\limits_{1}^{2} (2-x)^2 dx = \frac{\pi}{3} = 1.0472$

And the sum would be 1.5708+1.0472 = 2.618

7 0

3 years ago

Combing like terms? 4(1.75y-3.5)+1.25y

neonofarm [45]

First you gotta distribute.
4 (1.75y - 3.5) + 1.25y
4 * 1.75 y = 7
4* (-3.5) = (-14)

7y - 14 + 1.25y
Combine like terms
8.25y - 14

6 0

3 years ago

Read 2 more answers

How can you describe angles formed by parallel lines and transversal?

Travka [436]

When a transversal cuts (or intersects) parallel lines several pairs of congruent and supplementary angles are formed.

6 0

3 years ago

PLEASE SHOW FULL SOLUTIONS!!! WILL MARK BRAINLIEST FOR BEST ANSWER!!

kirill [66]

Answer:

We would use the explicit formula

Step-by-step explanation:

<u>The recursive formula is good to find the next term, example:</u>

a₁ = 20
aₙ = aₙ₋₁ + 10

<u>You would need the explicit formula to find any term, example:</u>

aₙ = 20 + 10(n - 1)

4 0

3 years ago