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vagabundo [1.1K]

4 years ago

13

Please help, I need an explanation because I'm confused on how to do this.

1 answer:

gladu [14]4 years ago

3 0

Answer:

15°

Step-by-step explanation:

If CB is a diameter, the arc BKAC is a semicircle and has a degree measure of 180. If the measure of angle BCK is 20 and it is an inscribed angle, then the measure of the arc it intercepts is twice that. So arc BK measures 40 degrees. That means that arc KA has a measure that is found by subtracting arc AC and arc BK from 180. 180 - 40 - 110 = 30. If that arc is 30 and the angle that intercepts it is inscribed, then the angle measure is half the measure of the arc. So the angle is 15°

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Maggie spent half of the money in her savings account on a new computer.if the computer was $345, how much money was in her savi

sergejj [24]

Answer:

$690

Step-by-step explanation:

all you have to do is multiply $345 by 2 since she spent half of her money

7 0

3 years ago

Hello, how was your day, help? ^ ^<br> solve for x

Natali5045456 [20]

Hi there!

»»————-　★　————-««

I believe your answer is:

$\boxed{x=100}$

»»————-　★　————-««

Here’s why:

Recall the Triangle Angle Sum Theorem: The three angles of all triangles add up to a sum of 180°.
We will set up an equation based on this and then solve.

⸻⸻⸻⸻

$\boxed{\text{Solve for 'x':}}\\\\58 + 22 + x = 180\\-----------\\\rightarrow 80 + x = 180\\\\\rightarrow 80 - 80 + x = 180 - 80\\\\\rightarrow \boxed{x=100}$

⸻⸻⸻⸻

»»————-　★　————-««

Hope this helps you. I apologize if it’s incorrect.

6 0

2 years ago

Find 3 consecutive odd integers with a sum of 63. PLEASE HELP!!!

mamaluj [8]

Answer:

the numbers are 20, 21 and 22

Step-by-step explanation:

x+(x+1) + (x+2) = 63

3x +3 = 63

3x = 60

x = 20

doing this for ponits

4 0

3 years ago

Read 2 more answers

Multiply 77/72 by 9/7 in lowest terms

OLEGan [10]

Answer: 1 3/8 or 1 whole and 3/8

Step-by-step explanation: first you do 77/72 multiplied by 9/7 and you get

1 and 189/594 then you simplify and get 1 and 63/168 and you simplify again and you get 1 and 21/56 then you simplify again and get 1 and 3/8

MEANINGS

-SIMPLIFY~WHEN YOU SIMPLIFY YOU DIVIDE THE FRACTION BY A NUMBER DIVISIBLE BY BOTH THE NUMERATOR AND DENOMINATOR

EXAMPLES~ 2/4 YOU SIMPLIFY IT BY DIVIDING BOTH THE NUMERATOR AND DENOMINATOR BOTH BY 2 AND YOU GET 1/2

Hope this helps ♥

3 0

3 years ago

Read 2 more answers

At the indicated point find (a) the slope of the curve and (b) an equation of the tangent line.

Marianna [84]

Answer:

Slope of the Curve: $f'(x)=\frac{-6}{x^2}$

Equation of Tangent Line: y + 3 = -3/2(x + 2)

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

<u>Algebra I</u>

Point-Slope Form: y - y₁ = m(x - x₁)

x₁ - x coordinate
y₁ - y coordinate
m - slope

<u>Calculus</u>

The definition of a derivative is the slope of the tangent line.

Basic Power Rule:

f(x) = cxⁿ
f’(x) = c·nxⁿ⁻¹

Quotient Rule: $\frac{d}{dx} [\frac{f(x)}{g(x)} ]=\frac{g(x)f'(x)-g'(x)f(x)}{g^2(x)}$

Step-by-step explanation:

<u>Step 1: Define</u>

<u /> $f(x)=\frac{6}{x}$ <u />

<u />

<u>Step 2: Take Derivative</u>

Quotient Rule: $f'(x)=\frac{0(x)-6(1)}{x^2}$
Multiply: $f'(x)=\frac{0-6}{x^2}$
Subtract: $f'(x)=\frac{-6}{x^2}$

<u>Step 3: Find Instantaneous Derivative</u>

Substitute in <em>x</em>: $f'(x)=\frac{-6}{(-2)^2}$
Exponents: $f'(x)=\frac{-6}{4}$
Simplify: $f'(x)=\frac{-3}{2}$

This value shows the slope of the tangent line at the exact value of x = 2.

Substitute: y + 3 = -3/2(x + 2)

5 0

3 years ago