Evaluate
13) What number is 10% of 80?

Answers

Answer 1

Answer:

8

Step-by-step explanation:

because it is

Answer 2
80x0.1=8, 8 is your answer

Related Questions

A(-3,-4) Translate A 3 units right, 8 units up

Answers

Answer:

at the origin, move it 3 units to the right, then raise the unit up by 8 units. Then the origin would be (0,4)

Step-by-step explanation:

Exsplain how to use a number line to show that opposite quantities combine to make 0.

Answers

Answer:

Add a positive number to a number by counting up from that number, and add a negative number to a.number by counting down from that number.An integer plus its opposite sum to zero.The opposite of a number is called the additive inverse because the two numbers' sum is zero.

Write the sentence as an inequality.

Four is no less than the quotient of a number x and 2.1.

Answers

Answer:

4 ≥ x÷2.1

Step-by-step explanation:

A music club was formed in the month of January last year. The function m(t) = t2 - 4t + 25 models the number of club members for the first 10 months, where t is the number of months since the club's inception. Complete the square, and graph this function. What is the minimum number of members the club had during the year? A. 29 members B. 24 members C. 22 members D. 21 members

Answers

Answer:

D

Step-by-step explanation:

We have to find the vertex of m(t) = t² - 4t + 25

a = 1

b = 4

c = 25

To do that we first need to move the 25 to the other side by subtracting 25 from both sides

m(t) = t² - 4t + 25

- 25              - 25

m(t) - 25 = t² - 4t

To continue completing the square, we have to add 4 to both sides since it is the square of half of b.

m(t) - 25 + 4 = t² - 4t + 4

m(t) - 21 = t² - 4t + 4

Now, we already found the minimum amount of members, but let's finish the square completion to find the vertex.

m(t) - 21 = t² - 4t + 4

Factor the right side

m(t) - 21 = (t-2)(t-2)

m(t) - 21 = (t-2)²

Finish it by adding 21 to both sides

m(t) - 21 = (t-2)²

      + 21         +21

m(t) = (t-2)² + 21

With this vertex form equation, we can tell that the vertex is (2,21)

Meaning 21 is the lowest number for m(t) for this equation.

Can someone help me please??

Answers

Hi! I'm happy to help! (sorry for the wait, my computer crashed)

A linear function is where one variable is independent (x), and another is dependent. This means that we use x to solve for y, y depends on x to be found.

To solve this, we use an equation call slope intercept form, which states that y=mx+b.

There is only 1 solution line. (to solve for how to find y, you only have to have two verifications)

For our first table, we have x as 1, 2, 3,and 4. y is 3, 6, 12, and 24.

For our first set, with x is one and y is 3, there are infinite solutions, so we have to test and see if it matches the second set of x is 2 and y is 6.

How I like to check for what m will be, I check the first two y values. The first two are 3 and 6. They have an increase of 3, so m will be 3. (this only works when x increases by 1)

With m being 3, we can solve for b, to complete the equation:

3=(3(1))+b

3=3+b

With this, b must equal 0

3=3+0

Now, we just have to check if this equation matches all of the other x values:

6=(3(2))+0

6=6+0

__________________________________

12=(3(3))+0

12=9+0

12≠9

This equation doesn't seem to work, so this is not a linear function.

For our next table, our first two y values are 2 and 5, which have a increase of 3, so our m will be 3 again.

Now, let's solve for b:

2=(3(1))+b

2=3+b

In this case, b will be -1 because 2=3-1

Now, let's check if this matches up with our other values:

5=((3)2)-1

5=6-1

_______________________________

9=((3(3)-1

9=9-1

9≠8

This equation doesn't work, so it is not a linear function.

For our next table, we have our first two y values as -3, and -5. This has a decrease of 2, so our m will be -2.

Now, let's solve for b:

-3=((-2)1)+b

-3=-2+b

In this equation, b will be -1 because -3=-2-1.

Now, let's check our other values:

-5=(-2(2))-1

-5=-4-1

___________________________________________

-7=(-2(3))-1

-7=-6-1

______________________________________________

-9=(-2(4)-1

-9=-8-1

All of these values match, so this is a linear function.

If you wanted to (you don't have to, but if you needed verification) you could check the fourth problem.

Has a decrease of 2, so m would be -2. Plug it in:

-2=(-2(1))+b

-2=-2+b

b would be 0.

Check it on the second problem:

-4=(-2(2))+0

-4=-4+0

Check the third:

-2=(-2(3))+0

-2=-6+0

-2≠-6

The fourth table doesn't match either, so it is not a linear function.

You should choose option 3 because it is a linear function.

I hope this was helpful, keep learning! :D

CORRECT ANSWER ONLY PLEASE!! What is the simplest radical form of the expression?

(8x5y3)23

Answers

The choose 1.

[tex]4 {x}^{3} {y}^{2} \sqrt[3]{x} [/tex]

I hope I helped you^_^

The simplest radical form of the expression is [tex]4x^2 y^2\sqrt[3]{x}[/tex].

What is simplification of an expression?

Usually, simplification involves proceeding with the pending operations in the expression.

Simplification usually involves making the expression simple and easy to use later.

When we have indices in the form [tex]ax^{2/3}[/tex] , To find the cube root of the (ax)².

This can be expressed mathematically as

[tex](\sqrt[3]{ax} )^2[/tex]

From the given expression

[tex](8x^5 y^3)^{2/3}\\\\(\sqrt[3]{(8x^5 y^3)})^{2}\\\\4x^2 y^2\sqrt[3]{x}[/tex]

Thus, the simplest radical form of the expression is [tex]4x^2 y^2\sqrt[3]{x}[/tex].

Learn more about an expression here:

https://brainly.com/question/1249625

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Angle AOE has what measurement according to the protractor?

A. 140°
B. 60°
C. 40°
D. 120°

Answers

Answer:

120°

Step-by-step explanation:

The protractor shows that ∠AOE is 120°. If A started from the left, then it would be 60°.

Answer:

120

Step-by-step explanation:

1)
A bank is offering 2.5% simple interest on a savings account. If you deposit $5000,
how much interest will you earn in one year?

Answers

Answer:

$125 is the interest that you might earn

Principal=P=5000Rate of interest=R=2.5%Time=t=1yearInterest=I

[tex]\\ \sf\longmapsto I=\dfrac{PRT}{100}[/tex]

[tex]\\ \sf\longmapsto I=\dfrac{5000(2.5)(1)}{100}[/tex]

[tex]\\ \sf\longmapsto I=\dfrac{12500}{100}[/tex]

[tex]\\ \sf\longmapsto I=\$ 100[/tex]

Is 53240 a perfect cube? If not, find the smallest number should 53240
be divide so that the quotient is a perfect cube?

Answers

Answer:

53240 should be divided by 5 to make it a perfect cube.

Step-by-step explanation:

find the domain of y= √3x+3

Answers

Answer:

it's hard to tell the exact question being asked...

y = [tex]\sqrt{3x} + 3[/tex]

or

y = [tex]\sqrt{3x+3}[/tex]

if y = [tex]\sqrt{3x} + 3[/tex] then Domain is [0 ,∞ )  

if  y = [tex]\sqrt{3x+3}[/tex] then Domain is [-1 ,∞ )  

Step-by-step explanation:

An ostrich can run at the speed or 1.67 kilometers per minute. How fast can the ostrich run in miles per
hour?

Answers

The ostrich can run 1.0376 miles per hour

Vocabulary What type of statement results
from inductive reasoning?

Answers

Answer:

Inductive reasoning is the opposite of deductive reasoning. Inductive reasoning makes broad generalizations from specific observations. Basically, there is data, then conclusions are drawn from the data. ... Even if all of the premises are true in a statement, inductive reasoning allows for the conclusion to be false.

Step-by-step explanation:

-28 = 2x + 8 - 5x
solve for x.
PLEASE

Answers

Hi ;-)

[tex]-28=2x+8-5x\\\\2x+8-5x=-28\\\\2x-5x=-28-8\\\\-3x=-36 \ \ /:(-3)\\\\\huge\boxed{x=12}[/tex]

Answer:

x=12

Step-by-step explanation:

-28=2x+8-5x

-28=-3x+8

Add 3x on both sides:

3x-28=-3x+8+3x

3x-28=8

Add 28 on both sides:

3x-28+28=8+28

3x=36

Divide 3 on both sides:

3x/3=36/3

x=12

A chemical company makes two brands of antifreeze. The first brand is 55% pure antifreeze, and the second brand is 80% pure antifreeze. In order to obtain 180 gallons of a mixture that contains 65% pure antifreeze, how many gallons of each brand of antifreeze must be used?​

Answers

Answer:

y = 116

x = 64

Step-by-step explanation:

.55x + .80y =.8* 160

x + y = 180

~~~~~~~~~~~~~~~~~~~~

x = 180-y

Robert says that the slope of a line passing through (1, 7) and (3, 9) is equal to the ratio 1-3/7-9 . Is this a correct method for calculating the slope? Explain your answer. (1 point)

Answers

Answer:

The slope should be calculated using the formula [tex](7 - 9) / (1 - 3)[/tex] instead of the one that was proposed in the question.

Step-by-step explanation:

The slope of a line in a cartesian plane is the rate at which [tex]y[/tex] changes with respect to [tex]x[/tex].

For this line, the value of [tex]y[/tex] increased (vertically) from [tex]7[/tex] at [tex](1,\, 7)[/tex] to [tex]9[/tex] at [tex](3,\, 9)[/tex] as the value of [tex]x[/tex] increased (horizontally) from [tex]1[/tex] to [tex]3[/tex].

In other words, [tex]y[/tex] changed by [tex](9 - 7)[/tex] while [tex]x[/tex] changed by [tex](3 - 1)[/tex].

The slope of the line (rate at which [tex]y[/tex] changes with respect to [tex]x[/tex]) would be:

[tex]\displaystyle \frac{\text{rise}}{\text{run}} = \frac{(9 - 7)}{(3 - 1)} = \frac{(7 - 9)}{(1 - 3)}[/tex].

In general, for a line that goes through [tex](x_1,\, y_1)[/tex] and [tex](x_2,\, y_2)[/tex], where [tex]x_{1} \ne x_{2}[/tex]:

[tex]\begin{aligned}\text{slope}&= \frac{(y_1 - y_2)}{(x_1 - x_2)} = \frac{(y_2 - y_1)}{(x_2 - x_1)}\end{aligned}[/tex].

Please help me solve this.
15x+8=-2+14x

Answers

Answer:

x=-10

Step-by-step explanation:

15x+8=-2+14x

15x-14x=-2-8

x=-10

help me find the area pls

Answers

Answer:

Area = 30

Step-by-step explanation:

a^2 + b^2 = c^2

12^2 + b^2 = 13^2

144 + b^2 = 169

b^2 = 169 - 144

b^2 = 25

b = 5

Area = 1/2 bh

Area = 1/2 (12)(5)

Area = 1/2 (60)

Area = 30

round 0.3782;hundredths

Answers

Answer:

hundredth:0.3800

thousand:0.4000

tenth:0.3780

PLEASE HELP ME ASAP

What's the difference in the total value of a $15,000 deposit between an account with an annual simple interest rate of 3.3% and an account with an annual compound interest rate of 3.3% after 50 years? Round all final answers to the nearest whole number.

Answers

Simple interest is only paid on the original amount
Interest each year = 15000 x 3.3% = 495
Balance after 50 years = 15000 + 50 x 495 = $39750

Increasing by 3.3% can be done by multiplying by 1.033 each year
Balance after 50 years = 15000 x 1.033^50 = $76052 (0 d.p.)

Difference in balances = 76052 - 39750 = $36302

What are RQS and TQS?

Answers

Answer:

m∠RQS = 72°

m∠TQS = 83°

Step-by-step explanation:

m∠RQS +m ∠TQS = m∠RQT

The two angles combine to make a larger angle

So

m∠RQS = (4x - 20)

m∠TQS = (3x + 14)

(4x - 20) + (3x + 14) = 155

Group the Xs and the constants

4x + 3x - 20 + 14 = 155

Combine like terms

7x - 6 = 155

Add 6 to both sides

7x = 161

Divide by 7 on both sides

x = 23

Check:

4(23) - 20 + 3(23) + 14 = 155

92 - 20 + 69 + 14 = 155

155 = 155

But we need to find m∠RQS and m∠TQS. So plug in x = 23 to the values.

m∠RQS = 4(23) - 20 = 72°

m∠TQS = 3(23) + 14 = 83°

Checking:

72 + 83 = 155

4y-6-5y/7 =-3

The / is division sign
Explain

Answers

Step-by-step explanation:

28y-42-5y=-21

28y-42=-21+5y

-42=-21+5y-28y

-42=-21-23y

42=21+23y

23y=42-21

23y=21

y=21/23

Answer:

y = 15

Step-by-step explanation:

[tex] \frac{4y - 6 - 5y}{7} = - 3[/tex]

➡️ [tex] \frac{ - y - 6}{7} = - 3[/tex]

➡️ [tex] - y = 6 = - 21[/tex]

➡️ [tex] - y = - 21 + 6[/tex]

➡️ [tex] - y = - 15[/tex]

➡️ [tex]y = 15[/tex]

X^6-64 divided by X+2

Answers

Answer:

[tex] \frac{ {x}^{7} + 2x - 64 }{x} [/tex]

Step-by-step explanation:

[tex] {x}^{6} - 64 \div x + 2[/tex]

➡️ [tex] {x}^{6} - \frac{64}{x} + 2[/tex]

➡️ [tex] \frac{ {x}^{7} - 64 + 2x }{x} [/tex]

➡️ [tex] \frac{ {x}^{7} + 2x - 64 }{x} [/tex]

i really need to find out how to find a,b, and c in the quadratic formula can u please help ASAP will mark as BRAINLIEST!!

Answers

Answer:

Brainliest, please! (Answer below)

Step-by-step explanation:

The basic form for any quadratic function is:

ax^2 + bx + c.

The constant of the 1st term, the x^2 constant, is a, the constant of the second term, the x constant, is b, and the constant, the third term, is c. There are some instances where there will not be a b or c. For example, x^2 + 2, or 3x^2 - 4x. However, there must always be an a, or else the function isn't quadratic.

factorize the following:
x^4+x^2+1​

Answers

Answer:

[tex] {x}^{4} + x {}^{2} + 1 \\ \\ {x}^{4} + 2 {x}^{2} - {x}^{2} + 1 \\ \\ (x {}^{4} + 2 {x}^{2} + 1) - {x}^{2} \\ \\ ( {x}^{2} + 1) {}^{2} - {x}^{2} \\ \\ ( {x}^{2} + 1 + x)( {x}^{2} - x + 1) \\ \\ ( {x}^{2} + x + 1)( {x}^{2} - x + 1)[/tex]

Find the distance between the two points. Round to the nearest tenth. (-1, 4) and (1, -1)

Answers

Step-by-step explanation:

The distance between two point (x_1, y_1) and (x_2, y_2) is

[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

Therefore, the distance between (-1,4) and (1,-1) is

[tex]d=\sqrt{(1-(-1))^2+(-1-4)^2}=\sqrt{4+25}=\sqrt{29}=5.4[/tex]

Find the value of x from the given figure:​

Answers

Answer:

60°

Step-by-step explanation:

2x and x are linear pair,

=> 2x + x = 180

=> 3x  = 180

=> x = 180/3

=> x = 60°

=>2x =120°

Answer:

x = 60

Step-by-step explanation:

x + 2x =  180   {linear pair}

Combine like terms

3x  = 180

Divide both sides by 3

x = 180/3

x = 60

4^x when x = 2 need asap

Answers

Answer:

16

Step-by-step explanation:

Substitute the value of the variable into the equation and simplify.

16? 4x4=16 i hope this helps

Jamil buys a video game for 20% off the original price. He pays $36, excluding sales tax. One week later, he sees an advertisement for $10 off the original price. This is the new sales price. Complete the sentence to explain whether Jamil paid more or less than the new sale price, excluding sales tax.

Answers

He would pay more in this point because 20% is more than 10 US dollars

The new price offers price is less than the offer of 20% discount.

Given that,
Jamil buys a video game for 20% off the original price. He pays $36, excluding sales tax. One week later, he sees an advertisement for $10 off the original price. This is the new sales price.

What is the percentage?

The percentage is the ratio of the composition of matter to the overall composition of matter multiplied by 100.

Here,
percentage of the price paid = 1 - 0.2 = 0.8
Let the original price be x,
According to the question,
36 = 0.8 (x)
x = 36/0.8
x = $45
Since the original price is $45,
As of the new price, the price is $10 so the price becomes $35 which is less than a 20% discount.

Thus, the new price offers price is less than the offer of 20% discount.

Learn more about percentages here:

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what is (2x+30)° and (3x+20)°​

Answers

Answer:

solution:

here,

or, (2x+30)°=(3x+20)°

or,2x+30°=3x+20°

or, 2x+3x=30°+20°

or, 5x=50°

or, x=50°÷5

so that: x=10° ans

help!! this is math.

Answers

Answer:

2,78,31,64,4-2,10-6,54,-97,-38,-8-7,-4-5,-11-1,-16
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