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3 years ago

What is the value of a? 27.5 45 90 50

Mathematics

2 answers:

Valentin [98]3 years ago

7 0

90. The measure of an inscribed angle is half of that of the measure of its arc, and the measure of the angle corresponding with arc a is 45. 45*2 is 90, so 90 is the measure of arc a.

weeeeeb [17]3 years ago

6 0

Answer: 90

Step-by-step explanation:

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Factor by grouping.. . 3x^2 + 7x – 6. A. (3x – 2)(x – 3) . B. (3x – 2)(x + 3) . C. (x + 3)(3x + 2) . D. (3x + 2)(x – 3)

Alchen [17]

The correct answer is letter "<span>B. (3x – 2)(x + 3)."
</span>
This is how to factor the given polynomial:
<span>3x^2 + 7x – 6
(3x - 2) (x + 3)

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4 years ago

Write the Riemann sum to find the area under the graph of the function f(x) = x4 from x = 5 to x = 7

galina1969 [7]

Answer:

x = 20

Step-by-step explanation:

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3 years ago

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Elodia [21]

Answer:

Step-by-step explanation:

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Since they are breads counts, they must not be less than zero.

The graph looks like what is shown in the attached figure.

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4 years ago

Write an equation that models this situation.

Nimfa-mama [501]

Answer:

Step-by-step explanation:

the ideal way to put the equation would be x= 6 x 8 but since that is not an option B is the answer. the keyword is "each" that allows you to know that you will be multiplying those to numbers.

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3 years ago

A solid circular cylinder has a base radius 5 cm and a height 12.5 cm. Find the approximate increase in the surface area of the

Olin [163]

Answer:

19.72 cm²

Step-by-step explanation:

A solid circular cylinder has a base radius 5 cm and a height 12.5 cm.

The volume of cylinder is given by :

$V=\pi r^2 h\\\\=3.14\times (5)^2\times 12.5\\\\=981.25\ cm^2$

When r = 5.05, new volum becomes,

$V=\pi r^2 h\\\\=3.14\times (5.05)^2\times 12.5\\\\=1000.97\ cm^2$

Increase in area = 1000.97 - 981.25 = 19.72 cm²

So, the increase in surface area of the cylinder is equal to 19.72 cm².

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3 years ago