Factor this expression
15y - 30

Answers

Answer 1

Answer:

2

Step-by-step explanation:

15y-30. Factor by finding the larger common factor.

15*y-15*2

15(y-2)

You can't solve this unless it is written as an equation:

 

15(y-2)=0

%2815%2F15%29%28y-2%29=0%2F15

y-2=0

y-2%2B2=0%2B2

y=2

Happy Calculating!!!

Answer 2
21 I gotcha I’m cracked

Related Questions

PLEASE PLEASE HELP!!! Match each pair of matrices with its product matrix.

Answers

Answer:

Step-by-step explanation:

Did the calculations myself, probably too late for these to be of any use but I'll leaave them here anyways for anyone else that needs it in the future. Love yall!

help me please. Can somebody help.

Answers

Answer:

2.25

Step-by-step explanation:

In order to find area, you just multiply height by width. A circle is even on all sides, so you do 1.5 times 1.5.

Answer-2.25 . Multiply height and width

Whats 200x3 I tried to answer it but it difficult and I knew you guys could help me?

Answers

Answer:

600

Step-by-step explanation:

200x3=600

Answer:

its 1200

Step-by-step explanation:

Identify the key features of these functions:

f(x) = 3(x + 5)2 − 10

g(x) = 200(0.95)x

h(x) = -0.25(x + 3)(x − 1)

The vertex of f(x) is at
. The function g(x) is decreasing at a rate of
%. The zeros of h(x) are at
and
.

Answers

Answer:

The vertex of f(x) is at (-5,-10).

The function g(x) is decreasing at a rate of 5%.

The zeros of h(x) are at x = -3 and x = 1.

Step-by-step explanation:

Vertex of a quadratic function:

Suppose we have a quadratic function in the following format:

[tex]f(x) = ax^{2} + bx + c[/tex]

It's vertex is the point [tex](x_{v}, f(x_{v})[/tex]

In which

[tex]x_{v} = -\frac{b}{2a}[/tex]

If a<0, the vertex is a maximum point, that is, the maximum value happens at [tex]x_{v}[/tex], and it's value is [tex]f(x_{v})[/tex]

Decaying exponential function:

A decaying exponential function has the following format:

[tex]A(x) = A(0)(1-r)^{x}[/tex]

In which A(0) is the initial quantity and r is the decay rate.

Zeros of a function:

Given a polynomial f(x), this polynomial has roots [tex]x_{1}, x_{2}, x_{n}[/tex] such that it can be written as: [tex]a(x - x_{1})*(x - x_{2})*...*(x-x_n)[/tex], in which a is the leading coefficient.

Vertex of f:

The function f is given by:

[tex]3(x+5)^2 - 10[/tex]

Expanding the calculations to place at the correct format:

[tex]3(x+5)^2 - 10 = 3(x^2 + 10x + 25) - 10 = 3x^2 + 30x + 75 - 10 = 3x^2 + 30x + 65[/tex]

Which means that

[tex]a = 3, b = 30, c = 65[/tex]

The x-value of the vertex is:

[tex]x_{v} = -\frac{30}{2*3} = -5[/tex]

The y-value of the vertex is:

[tex]f(-5) = 3(-5+5)^2 - 10 = -10[/tex]

The vertex of f(x) is at (-5,-10).

Decreasing rate of g(x).

We have that:

1 - r = 0.95

So

r = 1 - 0.95 = 0.05

Which means that the decreasing rate is of 5%.

The zeros of h(x) are

The zeros are

x + 3 = 0 -> x = -3

x - 1 = 0 -> x = 1

So

The zeros of h(x) are at x = -3 and x = 1.

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Answers

Answer: base times height divided by two

The price of a food it should be four times the price of the ingredients used in making the item. If the cost of ingredients used in making a taco is 1.5 dollars, what should be the pricw of the taco?

Answers

answer: $6

4 x $1.5 = $6

Answer:

6 dollars

Step-by-step explanation:

If the price of a food is four times the price of the cost of the ingredients, then if the taco's ingredients cost 1.5 dollars, all we have to do is multiply 1.5 by 4, to get the answer, 6 dollars.

find the sum of 9/10 and 5/6 write an equation?​

Answers

Answer: 1 11/15

Step-by-step explanation:

9/10 + 5/6

=  

 9 × 3

+--------

 10 × 3

5 × 5

-------

6 × 5

=  

27/30 + 25/30

=  

27 + 25

-----------

   30

=  

52/30

=  

52 ÷ 2

----------

30 ÷ 2

=  

26/15

=  

1 11/15

Answer:

Step-by-step explanation:

9/10 + 5/6 = 16/20

One gallon is approximately 3.79 liters. Write a direct variation equation that relates 2 gallons to y liters.
370

Answers

Answer:

2 gallons x 3.79 = 7.58 liters

Step-by-step explanation:

1 gallon = 3.79 liters

so

2 gallons x 3.79 liters = 7.58 liters

2 x 3.79 = y liters

"Seven eights of a number is 63" equation and solve

Answers

Answer:

x = 72

Step-by-step explanation:

7/8 *  x = 63

x = 63 / (7/8)

x = 72

What's the radius of a circle with area 9π units2?
Question options:

A)

81 units

B)

18 units

C) CORRECT ANSWER

3 units

D)

9 units

Answers

Answer:

option C : 3 units

Step-by-step explanation:

radius of circle is 3 units

plz mark my answer as brainlist plzzzz.

hope this will be helpful to you .

Find the missing length indicated. Leave your answer in simplest radical form.

Answers

Answer:

18[tex]\sqrt{3}[/tex]

Step-by-step explanation:

The hypotenuse of the 45-45-90 triangle is [tex]\sqrt{2}(9\sqrt{2} ) = 18[/tex]

The hypotenuse of the 45-45-90 triangle is also the shorter leg of the

30-60-90 triangle

The longer leg = x = shorter leg times [tex]\sqrt{3\\}[/tex] = 18[tex]\sqrt{3\\}[/tex]


Sally collects stamps. Of all her stamps,
45% are from the United States. She has
90 stamps from the United States. How
many total stamps does she have?

Answers

Answer:

200 stamps

Step-by-step explanation:

Divide the 90 stamps by 45: The result is 2; it's equal to 1% of the total number of stamps. You then multiply it by 100 to get the full amount, which is 200 stamps.

90 stamps are .45 of her collection
90/.45=x/1.00
cross-multiply
.45x=90
x=200 stamps, dividing both sides by 0.45

+.45x+=+90+
+x+=+90%2F.45+
+x+=+200+
She has 200 stamps

So 200 stamps she has

GIVING BRAINLIEST TOO BEST ANSWERED
Solve for p.

−4.5 + p/6 = −18.9

A
p=−117.9

B
p = −108.9

C
p = −86.4

D
p = 140.4

Answers

Answer:

c p = -86.4

aww man I got to explain too I used this app called math - way they will explain it

Each but is 21/100 meters long. Write the fraction as a decimal then calculate how long all eight books are all together

Answers

Answer:

1.68 Meters

Step-by-step explanation:

Hello I think I can help with this.

Well basically the way it is represented as a fraction is a portion of a whole like a percent :

For example : 21%

So basically we just need to turn this into a decimal and then add to find how long the books would be together.

How I would go about doing this is first looking at the 21/100 and remember that in decimals 1.00 is a whole just like the 100. So in this case the 100 in 21/100 would be 1.00.

So knowing this, we can take the 21 in 21/100 and say that 0.21/1.00 is equal to 21/100 because the 21 is representing how much of a meter the books are while 100 is the whole meter.

Now, we know we have eight books and each are .21 long. So we can do :

.21 x 8

=

1.68

While this is the answer we can write it in two ways. Either in fraction form like it started or in decimal form which I think is how they want you to write the answer.

For fraction :

168/100 Meters

We can simplify this :

1 68/100 Meters

EDIT :

We can simplify this even more :

Lets divide both sides by 2 :

34/50

AND we can do it again :

So divide by 2 on both sides :

17/25

And don't forget to add the 1 back into it :

1 17/25

And for the decimal form it is just what we found already :

1.68 Meters

I hope this helps!

If you have any questions or concerns feel free to comment or message me. :)

how much would 11 trillion divided equally amongst 300 million people be? Time sensitive question

Answers

Answer:

36666.6666667

Step-by-step explanation:

Cant really be equal

Consider that the federal debt is $11 trillion which is divided equally among 300 million people.
To solve the problem mentally, express both in terms of billion.
Since 1 trillion is 1000 billion, so 11 trillion is =11x1000
11,000 billion

Since 1 billion is 1000 million, so 300 million is
300/1000
=0.3 billion

Suppose that 3\%3%3, percent of over 200{,}000200,000200, comma, 000 books borrowed from a library in a year are downloaded. The librarians plan to take an SRS of 757575 books from the population of borrowed books to see what proportion of books sampled are downloaded. What are the mean and standard deviation of the sampling distribution of the proportion of downloaded books

Answers

Answer:

The mean of the sampling distribution of the proportion of downloaded books is 0.03 and the standard deviation is 0.0197.

Step-by-step explanation:

Central Limit Theorem

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean [tex]\mu = p[/tex] and standard deviation [tex]s = \sqrt{\frac{p(1-p)}{n}}[/tex]

3% of books borrowed from a library in a year are downloaded.

This means that [tex]p = 0.03[/tex]

SRS of 75 books.

This means that [tex]n = 75[/tex]

What are the mean and standard deviation of the sampling distribution of the proportion of downloaded books

By the Central Limit Theorem

Mean: [tex]\mu = p = 0.03[/tex]

Standard deviation: [tex]s = \sqrt{\frac{p(1-p)}{n}} = \sqrt{\frac{0.03*0.97}{75}} = 0.0197[/tex]

The mean of the sampling distribution of the proportion of downloaded books is 0.03 and the standard deviation is 0.0197.

These are the new questions, there are 2 here. 2 images, 2 different questions

Answers

Answer:

1) 12.62) 18

Step-by-step explanation:

Use ratios and solve for x

Q1

27/24 = (3x - 21)/(x + 13)9/8 = 3(x - 3)/(x + 13)3/8 = (x - 3)/(x + 13)8(x - 3) = 3(x + 13)8x - 24 = 3x + 398x - 3x = 39 + 245x = 63x = 63/5x = 12.6

Q2

9/14 = (x + 8)/(3x - 2)9(3x - 2) = 14(x + 8)27x - 18 = 14x + 11227x - 14x = 112 + 1813x = 130x = 10EF = x + 8 = 10 + 8 = 18

Find the product.

120 ×(0.002). It is 6th grade work don’t worry about where it says college

Answers

Answer:

0.24

Step-by-step explanation:

120 x 0.002 = 0.24

The correct answer is 0.24.

To find the product of 120 ×(0.002).

The zeroes are multiplied by the power of 10 which is 1/10 in particular.

For example.

The product of a whole number and a decimal number less than 1 will be greater than the whole number multiplied into. For this theorem to be proven. Let us state the mathematical expression into numbers such that

1.  N x 0.1 = N/0.1 < N

2.  1 x 0.5 = 0.5

3.  2 x 0.1 = 0.2

4.  100 x 0.55 = 55  

120 ×(0.002) = 0.24.

Therefore, the 120 × 0.002 = 0.24

Learn more about Multiplication here:

https://brainly.com/question/643060

#SPJ6

pls help my brainly buddies

Answers

Answer:

≈ 41.2°

Step-by-step explanation:

Given ΔABD with:

AC⊥BDBC = 6 cmBD = 22 cmArea(ABC) = 42 cm²Find ∠D = x

Consider ΔABC

Area = 1/2BC*AC42 = 1/2*6*ACAC = 42/3 = 14

Consider ΔACD

CD = BD - BC = 22 - 6 = 16 cmAC = 14 cmtan x = AC/CDtan x = 14/16 = 0.875x = arctan 0.875x ≈ 41.2°

Answer:

≈ 41.2°

Step-by-step explanation:

Sally bought 10 pencils for
$1.50, how much is it per pencil? Don't forget $ in
the front.

Answers

Answer:

$0.15 per pencil

Step-by-step explanation:

1. Divide

1.50 divided by 10 = 0.15

2.Answer

$0.15 per pencil

6y+8x-3x
I need help this is for homework

Answers

Answer:

6y + 5x

Step-by-step explanation:

6y + 8x - 3x

Combine like terms (put all the "x"'s with the"x"'s and "y"'s with the "y"'s together)

8x - 3x = 5x

6y + 5x

And you cannot simplify it anymore, since they are not like terms

Hope this helped!

Have a supercalifragilisticexpialidocious day!

5x6y just simplify it

People drive, on average, 14,063 miles per year. About how many miles each week is that?

Answers

Answer:

About 270.44 miles

Step-by-step explanation:

There is about 52 weeks in a year. 14,063 divided by 52 is 270.44\

DONT TRUST ME ON  THIS

Answer:

270 miles a week

Step-by-step explanation:

there are 52 weeks in a year

so you divide 15,063 by 52

that would equal 270

PLEASE HELP IMMEDIATELY!!!​

Answers

180in2
A=gbb/2=15x24/2=180

Find the missing side of the triangle, leave answer in simplest radical form.

Answers

Answer:

x =  [tex]\sqrt{15^{2}-13^{2}[/tex]

Step-by-step explanation:

An employee at a shoe store has observed that taller customers have larger shoe sizes than customers who are shorter. She knows that shoe sizes are based on foot length, so she hypothesizes: Compared with shorter people, taller people have longer feet. Look for patterns in the data. Describe any patterns you find.

Answers

Answer:

hello some information related to your question is missing

answer : The pattern discovered supports the hypothesis that taller customers have larger shoe sizes but with some exceptions and this exceptions are ; at Height 5ft 10 inches two people are seen to have different shoe sizes i.e. Eduardo with shoe size : 10.25 inches and Susan with shoe size : 10inches. another exception from the pattern is Lily having a height of 5 ft and shoe length of 9 inches .

Step-by-step explanation:

From the data given the pattern discovered supports the hypothesis that taller customers have larger shoe sizes but with some exceptions and this exceptions are ; at Height 5ft 10 inches two people are seen to have different shoe sizes i.e. Eduardo with shoe size : 10.25 inches and Susan with shoe size : 10inches. another exception from the pattern is Lily having a height of 5 ft and shoe length of 9 inches .

Using the given equation find the missing coordinates of the points and then find the slope of the line for each equation y= 0.3x + 1; A(...;9), B(5;...) The slope is

Answers

Answer:

[tex]A = (\frac{80}{3},9)[/tex]

[tex]B = (5,2.5)[/tex]

The slope is 0.3

Step-by-step explanation:

Given

[tex]y = 0.3x + 1[/tex]

[tex]A = (-,9)[/tex]

[tex]B = (5,-)[/tex]

Required:

Fill in the gap and calculate the slope

In [tex]A = (-,9)[/tex]

[tex]y = 9[/tex] and x is ??

Substitute 9 for y in [tex]y = 0.3x + 1[/tex]

[tex]9 = 0.3x + 1[/tex]

Collect Like Terms

[tex]0.3x = 9 - 1[/tex]

[tex]0.3x = 8[/tex]

[tex]x = \frac{8}{0.3}[/tex]

[tex]x = \frac{80}{3}[/tex]

So:

[tex]A = (-,9)[/tex]

[tex]A = (\frac{80}{3},9)[/tex]

In [tex]B = (5,-)[/tex]

[tex]x = 5[/tex] and y is ??

Substitute 5 for x in [tex]y = 0.3x + 1[/tex]

[tex]y = 0.3 * 5 + 1[/tex]

[tex]y = 1.5 + 1[/tex]

[tex]y = 2.5[/tex]

So:

[tex]B = (5,-)[/tex]

[tex]B = (5,2.5)[/tex]

Calculating the slope (m)

[tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

[tex]m = \frac{2.5-9}{5 - \frac{80}{3}}[/tex]

[tex]m = \frac{-6.5}{\frac{15- 80}{3}}[/tex]

[tex]m = \frac{-6.5}{\frac{-65}{3}}[/tex]

[tex]m = \frac{-6.5*3}{-65}[/tex]

[tex]m = \frac{-19.5}{-65}[/tex]

[tex]m = 0.3[/tex]

Select all the expressions that represent the area of the large, outer rectangle in figure A.


Please help quickly.

Answers

Answer:

Below three are the options

Step-by-step explanation:

6(3+2)

6*5

6.3+6.2

Answer:

6(3 + 2), 6 * 5, and 6 * 3 + 6 * 2 are all expressions that represent the area of the large outer rectangle in figure A.

Several shots were fired during a concert downtown. The performing musician received minor injuries, and no one else was injured. The musician is now suing the city for not providing proper security for the event. The musician has had financial trouble after leaving a successful boyband, and there are rumors that the musician organized the shooting so he could collect money from the lawsuit. A tree near the stage was found with several bullet holes, and it was determined the shots could not have come from the crowd. The musician owns the penthouse in the apartment building in front of the concert venue, so forensic analysts want to determine if the shots could have come from there. The penthouse is on the sixth floor, which is 85 feet from the ground . The building is 60 feet from the tree. Using the measurements from the crime scene, show your math to determine if the shooter came from the penthouse.

Answers

Answer:

The answer is 365.76 m/s

Step-by-step explanation:

What are the values of b and c?

Answers

Answer:

c = 40 degrees ; b = 100 degrees

Step-by-step explanation:

Since this is a isosceles triangle, sides WV and WU are the same length.

c = 40 degrees

There are 180 degrees in a triangle.

180 - 40 - 40 = 100

b = 100 degrees

I hope this helps!

Question 8 Samples of rejuvenated mitochondria are mutated (defective) in 2% of cases. Suppose 17 samples are studied, and they can be considered to be independent for mutation. Determine the following probabilities. (a) No samples are mutated. (b) At most one sample is mutated. (c) More than half the samples are mutated. Round your answers to two decimal places (e.g. 98.76). (a) The probability is (b) The probability is (c) The probability is

Answers

Answer:

Step-by-step explanation:

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