Write an equation in point-slope form of the line that passes through the point (4 - 5) and has a slope of 2.

Answer:

D) [tex]a^{10+7} \\[/tex].

Step-by-step explanation:

You're supposed to subtract the denominator from the numerator. But 10 - (-7) is also 10 + 7. This makes the last one correct.

Hope it helps! :)

Answer:

21

Step-by-step explanation:

Answer:

21

Step-by-step explanation:

Firstly, convert this percentage into a decimal. All you have to do is move the decimal point two digits to the left.

Your percentage is currently 140.00. The decimal would be 1.40.

Next, take the given number (15 in this case) and multiply it by the decimal number:

15 * 1.40 = 21.

Hope this helped!

Answer:

x = 2

Step-by-step explanation:

Exponential Equations

Solve:

[tex]5^{2x-1}+5^{x+1}=250[/tex]

Separate each exponential:

[tex]5^{2x}5^{-1}+5^{x}5^{1}=250[/tex]

Operating:

[tex]\displaystyle \frac{5^{2x}}{5}+5^{x}5=250[/tex]

Multiplying by 5:

[tex]5^{2x}+25\cdot5^x=1250[/tex]

Rearranging:

[tex]5^{2x}+25\cdot5^x-1250=0[/tex]

Recall that:

[tex]5^{2x}=(5^{x})^2[/tex]

[tex](5^{x})^2+25\cdot5^x-1250=0[/tex]

Calling

[tex]y=5^{x}:[/tex]

[tex]y^2+25y-1250=0[/tex]

Factoring:

[tex](y-25)(y+50)=0[/tex]

There are two possible solutions:

y=25

y=-50

Since

[tex]y=5^{x}[/tex]

y cannot be negative, thus:

[tex]5^{x}=25=5^2[/tex]

The solution is:

x = 2

The value of the principal invested is $762. 5

The formula for calculating simple interest is expressed as;

I = PRT/100

Such that the parameters of the formula are represented as;

Now, substitute the values into the equation, we have;

$549 = P × 9 × 8/100

Multiply the values

$549 = 72P/100

cross multiply the values

$549 × 100 = 72P

Multiply the values

72P = 54900

Divide both sides by the coefficient of P

P = $762. 5

Learn about simple interest at: https://brainly.com/question/25793394

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Answer:

less than 7, greater than 1

Step-by-step explanation:

Answer:

Step-by-step explanation:

slope for 3 is -0.6

1.525 is second 3=(1)0+3

3x-y+3

3x-y-8

Answer:

The calculated  |t| = |-26.517|=26.517 > 2.326 at 0.01 level of significance

Null hypothesis is rejected at 0.01 level of significance

There is difference between mean savings account balance in 2013 is different from the mean savings account balance in 2012

Step-by-step explanation:

Step(i):-

Mean of the Population = 1900

Given random sample size 'n' =  45

Mean of the sample x⁻ = 1000

Standard deviation of the sample = 225

Null Hypothesis:-

There is no difference between mean savings account balance in 2013 is different from the mean savings account balance in 2012.

Alternative Hypothesis :-

There is difference between mean savings account balance in 2013 is different from the mean savings account balance in 2012

Step(ii):-

Test statistic

        [tex]t = \frac{x^{-}-mean }{\frac{S.D}{\sqrt{n} } }[/tex]

        [tex]t = \frac{1000-1900 }{\frac{225}{\sqrt{45} } }[/tex]

       t = -900 /33.54 = -26.517

      |t| = |-26.517|=26.517

Degrees of freedom

                       γ = n-1 = 45-1 =44

t₍₀.₀₁ , ₄₄₎ = 2.326

The calculated  |t| = |-26.517|=26.517 > 2.326 at 0.01 level of significance

Null hypothesis is rejected at 0.01 level of significance

There is difference between mean savings account balance in 2013 is different from the mean savings account balance in 2012

Answer:

8 + 4x = 28

Step-by-step explanation:

So in this equation 'x' = 5.  Eight more would be 8 +.  So you would subtract 8 from 28 giving you 20.  From there you would divide by four giving you five thus which is your 'x' variable.

Please mark brainliest.. I hope I helped :)

Answer:

$26.26

Step-by-step explanation:

6.59*2= 13.18

3.27*4= 13.08

Add them together

13.18+13.08

you’ll get 26.26

Answer:

The coordinates of B are (-7, -5)

Step-by-step explanation:

We can automatically determine that the x-value is -7 since M and A are 1 unit apart.  We can also determine that from 1 to 7, it is 6 units apart.  Subtract 6 from 1 to get -5 as your y value in which your coordinates for B is (-7, -5)

Answer:

NO

Step-by-step explanation:

Direct variation describes a simple relationship between two variables . We say y varies directly with x (or as x , in some textbooks) if: y=kx. for some constant k . This means that as x increases, y increases and as x decreases, y decreases—and that the ratio between them always stays the same.

also if it would be the same it would be (0,0) then (2,4) and finally (3,6) now that it would be a constant one.

hope this helped please mark brainliest if I did good and have a wonderful day (((((:

Answer:

-3

Step-by-step explanation:

coefficent of x enough to understand slope

Hello there! :)

The equation y=-3x+7 is written in slope-intercept form (y=mx+b)

Where

m is the slope

b is the y-intercept

As we can see, the slope of this line is -3.

Pay attention to the minus sign.

Hope it helps.

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-Grace ;-)

Good luck.

Answer:

Answer: I think its 15 but if you could give me answer choices it would be better

But The answer is 15.

Step-by-step explanation:

Step-by-step explanation:

Answer:

40/100

Step-by-step explanation:

Answer:

2/5

Step-by-step explanation:

Answer:

I may be wrong but won't it be 0?

Step-by-step explanation:

1/4 is the half of 1/8 right? So both of the 1/4 is all of 1/8. So the teacher got 0.

I tried my best please don't say "WRONG!" please say it nicer... Thank you:)

Answer:

The first one is  27.7

Step-by-step explanation:

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Answer:

1.  8193.07

2.  1147.15

3.  1234.43

4.   2402.31

5.   8734.96

6.    4172.3

Step-by-step explanation:

V=πr^2 h

Answer:

66 words in 1 minute

I hope this helps!

Step-by-step explanation:

The x int- is -6x and the y int- is 36

Answer:

X intercept: (6,0)

Y intercept: (0, 36)

Step-by-step explanation:

X intercept: When y = 0

0 = 36 - 6x

-36 = -6x, x = 6

X intercept: (6, 0)

Y intercept: When x = 0

y = 36 - 6(0)

y = 36 - 0, y = 36

Y intercept: (0, 36)

Answer:

Step-by-step explanation:

A+B=29

B+C=44

A+C=45

2A+2B+2C=44+45+59

                  =118

A+B+C=59

A+B+C-A-B=59-29=30

C=30

A=15

B=14 ...................

Answer:

Slope = 3

y intercept = 35

Step-by-step explanation:

Given

x = time

y = letters that can not be scanned

Also, we have:

[tex](x_1,y_1) = (15,80)[/tex]

[tex](x_2,y_2) = (45,170)[/tex]

The slope is calculated as follows:

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

[tex]m = \frac{170-80}{45-15}[/tex]

[tex]m = \frac{90}{30}[/tex]

[tex]m = 3[/tex]

To calculate the y intercept, we need to determine the linear equation using:

[tex]y - y_1= m(x-x_1)[/tex]

Substitute values for x1, y1 and m

[tex]y - 80 = 3(x - 15)[/tex]

Open bracket

[tex]y - 80 = 3x - 45[/tex]

Make y the subject

[tex]y = 3x - 45+80[/tex]

[tex]y = 3x +35[/tex]

An equation has the general form:

[tex]y=mx + b[/tex]

Where

[tex]b= y\ intercept[/tex]

By comparison:

[tex]b = 35[/tex]

Answer:

136

Step-by-step explanation:

160×15%=24

160-24=136

Answer:

A. The function has three distinct real zeros.

Step-by-step explanation:

The correct option is that the function has 3 distinct real zeros.

For a quadratic graph, the point where the curves intersect the x-axis is the x-intercept of the graph.

The zeros of the graph are the point where the curves touches the x-axis. From the given graph, we can see that the curve cuts the x-axis at three points at, x = 1, x = 4 and x = 6.

Since the values are real and distinct, hence the correct option is that the function has 3 distinct real zeros.

Learn more about polynomial graphs here: https://brainly.com/question/9696642

Answer:

Step-by-step explanation:

Take the pre-sale price.

Divide the original price by 100 and multiply it by 30.

Take this new number away from the original one.

The new number is your discounted value.