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2 years ago

Find the arc measure of AB. The measure of arc AB = ______ degrees

Mathematics

1 answer:

mariarad [96]2 years ago

7 0

The picture is difficult to read, but it looks like
∠ADB = 2x²
∠ACB = 10x
These two angles have equal measure, so you have
2x² = 10x
2x(x -5) = 0 . . . . . subtract 10x and factor
x = 0, or x = 5

The measure of arc AB is twice the measure of either inscribed angle, so would be
arc AB = 2×10x
= 2×10×5
= 100 . . . . . degrees

Arc AB is 100°.

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How do you write 6/4 as a percentage?

NeX [460]

Hello,

How do you write 6/4 as a percentage?:

$\frac{6}{4} = 1.5$ x 100 = 150%

Thanks,

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3 years ago

Read 2 more answers

Jernel has to figure out the area of her square garage. she knows that one side of the garage is equal to the length of her rabb

Setler [38]

10*10= 100

if 100 equals 1 side, then x = 4 sides

since there are 4 sides on a square you multiply 100 by 4

your answer is 400 units²

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8 0

3 years ago

A "b" value of less than 1 produces a graph with exponential decay

Andru [333]

If this statement is a True or False question.

Then, TRUE. A "b" value of less than 1 produces a graph with exponential decay.

We consider this formula: y = a*b^x or f(x) =a*b^x

a is the initial value, b is the rate, x is the exponent.

If b has a value of less than 1, as the exponent increases the resulting value of y decreases.

f(x) = 20(0.90)^x

f(1) = 200(0.90)¹ = 180
f(2) = 200(0.90)² = 162
f(3) = 200(0.90)³ = 145.80
f(4) = 200(0.90)⁴ = 131.22
f(5) = 200(0.90)⁵ = 118.10

Exponential decay is the decrease in a quantity. As you can see in the given example the value of f(x) decreases as the value of x increases because the value of b is less than 1.

5 0

3 years ago

In the figure below, tan B = 4/3. If BC = 15 and DA = 3, what is the length of DE ?

jonny [76]

Answer:12

Step-by-step explanation:

3 0

2 years ago

For each situation, write an expression answering the question. The expression should only

siniylev [52]

Answer:

The expressions for each statement are as follows:

a: 2500+(0.10*2500)

b: 40 * 0.85

c: 250 + (0.075*250)

Step-by-step explanation:

Part a:

Given

Salary = $2500

Percentage of raise = 10%

The new salary will be:

$= 2500+ (10\%\ of\ 2500)\\=2500 + (0.10*2500)\\=2500+250\\=\$ 2750$

Part b:

Given

Total questions = 40

Percentage of correct answers = 85%

The required expression for correct answers is:

$= 85\%\ of\ 40\\= 0.85*40\\=34$

Part c:

Given

Price of phone = $250

Percentage of sales tax = 7.5%

The required expression is:

$Cost\ with\ sales\ tax = 250 + (7.5\%\ of\ 250) \\= 250 + (0.075*250)\\=250+18.75\\=268.75$

Hence,

The expressions for each statement are as follows:

a: 2500+(0.10*2500)

b: 40 * 0.85

c: 250 + (0.075*250)

8 0

2 years ago