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3 years ago

HELP WHATS THE ANSWER FOR THIS

Mathematics

2 answers:

KATRIN_1 [288]3 years ago

6 0

Answer:

Step-by-step explanation:

ITS 125!

Semmy [17]3 years ago

6 0

Answer:

B. 55

Step-by-step explanation:

N+W=180°

N+125°=180°

N=180°-125°

N=55°

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Mrs. Toomer brought 40 cookies to school. Mrs. Toomer's class ate 1/2 the cookies. Mrs. Wilson's class ate 1/4 of the remaining

Arte-miy333 [17]

1/2 of 40 is 20, and the question says 1/4 of the REMAINING cookies, and 1/4 of 20 is 5. There are 3/4 left, or 15 cookies. I hope this helps!

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3 years ago

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Solve for x. Show all your steps/work. <br> (¼)x + 1 = 22x

Vadim26 [7]

22x-1/4x= 1
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3 years ago

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Beth’s annual salary is $20,000. She also earns a variable percent commission on her sales over $500. The percent commission var

slava [35]

Answer:

Step-by-step explanation:

Here, we want to select the option that best describes the commission earned;

In the question, we are told that the commission is a certain percentage variable on the amount of her sales;

Thus , mathematically to get the percentage commission, we simply need to have;

p(x) of f(x)

This simply refer to placing f(x) into p(x) which can be rewritten as ;

p o f(x)

The closest answer to this is the first option A

6 0

3 years ago

Please help me with these 5 questions!

kipiarov [429]

Answer:

Part 2) Option D. yes; k = 1/4 and y = 1/4x

Part 6) Option D. y = 1/5x-1

Part 8) Option C. line b

Part 11) Option D. -1/5

Part 15) Option A. line a

Step-by-step explanation:

Part 2) we know that

A relationship between two variables, x, and y, represent a directly variation if it can be expressed in the form $y=kx$

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

In this problem the line passes through the origin

therefore

Yes. y varies directly with x

Let

A(4,1)

The constant k is equal to

$k=y/x$

substitute

$k=1/4$

the equation is equal to

$y=(1/4)x$

Part 6) we know that

The y-intercept of the trend line is -1 (For x=0)

The slope of the trend line is positive

The x-intercept of the trend line is 5 (For y=0)

therefore

the equation is equal to

$y=(1/5)x-1$

Part 8) we have

$y+4=-\frac{2}{3}x$

This is the equation of a line into point slope form

The slope is negative $m=-2/3$

Pass through the point (0,-4) ----> y-intercept

The x-intercept is equal to

$0+4=-\frac{2}{3}x$

$x=-4*3/2=-6$

therefore

Is the line b

Part 11)

What is the slope of the line through the points (–2, –1) and (8, –3)?

we know that

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

substitute the values

$m=\frac{-3+1}{8+2}$

$m=\frac{-2}{10}$

simplify

$m=-\frac{1}{5}$

Part 15) we have

$y=3x-2$

The slope is positive $m=3$

The y-intercept is -2 (For x=0)

The x-intercept is (For y=0)

$0=3x-2$

$3x=2$

$x=2/3$

therefore the line is a

7 0

3 years ago

Two circles of radius 1 are centered at $(4,0)$ and $(-4,0).$ How many circles are tangent to both of the given circles and also

galben [10]

Answer:

1 circle

Step-by-step explanation:

Given two circles (red circles on the diagram).

There are two tangent circles to both of the given circles (blue circles on the diagram), and only one of them is passing through the point (0,5).

Let's check it.

The equations of the tangent circles are

$x^2+y^2=9\ [\text{Smaller tangent circle}]\\ \\x^2+y^2=25\ [\text{Larger tangent circle}]$

Check whether point (0,5) lies on the smaller circle:

$0^2 +5^2 =0+25=25\neq 9$

Check whether point (0,5) lies on the larger circle:

$0^2 +5^2 =0+25=25$

Yes

<u>Answer: </u>1 circle

7 0

3 years ago