need help pls answer it​

Answer:

d) 34x^2 - 15x -25

( (8x + 5) * (8x - 5) ) - 5x(6x +3 )

= 64x^2 - 25 - 30x^2 - 15x

= 34x^2 - 15x - 25

Answer: what’s the question?

Step-by-step explanation:

Answer:

1 1/9 miles

Step-by-step explanation:

If john swims 5/12 of a mile in 3/8 of an hour, then;

5/12 miles = 3/8 hours

TO get the number of miles he swims in an hour, we will say;

x miles = 1 hour

Equating both expressions

5/12 miles = 3/8 hours

x miles = 1 hour

Cross multiply

3/8 x = 5/12

3x/8 = 5/12

3x * 12 = 5 * 8

36x = 40

x = 40/36

x = 10/9

x = 1 1/9

The amount he swims in an hour is 1 1/9 miles

Answer:

14

Step-by-step explanation:

Answer:

0

Step-by-step explanation:

Answer:

the answer is 62

Step-by-step explanation:

57+(-4)+9

53+9=62

Answer:

y = 9

Step-by-step explanation:

When the line crosses y-axix,  x-co ordinate = 0

y = -4*0 + 9

y = 0 + 9

y = 9

Step-by-step explanation:

The answer with explanation is in the image.

Answer:

You are now 38 m below base camp.

Step-by-step explanation:

Consider the provided information.

You start hiking at an elevation that is 80 meters below base camp.

Now your initial location is 80 m below base camp, that can be represents as: -80

Now you increase your elevation by 42.

So you go up by 42.

In other words, you get the equation -80+42 = -38.

Since a negative value is below the base camp, this means that you are now 38 m below base camp.

Greetings.

The answer is y = -2.

Explanation:

The equation is defined to solve for y-term. Our y is currently our subject at this point and needs to be solved.

We move -3 to another side and leave y as the subject of equation. Moving to another side will change the sign/operator to opposite.

Plus ---> Minus

Minus ---> Plus

Multiply ---> Divide

Divide ----> Multiply

[tex]y-3=-5\\y=-5+3\\y=-2[/tex]

Hope this helps! :)

Answer:

The answer would be -6x - 4 + -4. hope this is accurate!

Step-by-step explanation:

Answer:

when x = 0.75, f(x) = 7 * 0.75 = 5.25

Step-by-step explanation:

Answer:

-1.5 y 3

Step-by-step explanation:

enjoy enjoy hopefully it's right

Answer:

Slope = -3/2

y-intercept = 3

Step-by-step explanation:

Select any two points.

(x₁ , y₁) = (0, 3)   & (x₂ , y₂) = (2 , 0)

Slope = [tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]

         [tex]\frac{0-3}{2-0}\\\\=\frac{-3}{2}[/tex]

y - y₁ = m(x -x₁)

y - 3 = [tex]\frac{-3}{2}(x - 0)[/tex]

y - 3 = [tex]\frac{-3}{2}x[/tex]

     [tex]y = \frac{-3}{2}x + 3[/tex]

Compare with y = mx + c

Slope = -3/2

y-intercept = 3

Answer:

50 i think

Step-by-step explanation:

Answer:

2 and -3

Step-by-step explanation:

The reason why these are the answers is because if you put it in your graphics calculator then you can see the only points where the diagram intersects with the x-axis would be at points 2 and -3 :)

Answer:

did u forget to complete the question or.....

Answer:

9 pounds of chocolate candies

6 pounds of sugar candies

Step-by-step explanation:

x + y = 15

y = 15 - x

(7x + 2y) / 15 = 5

7x + 2y = 15 * 5 = 75

7x + 2 * (15 - x) = 75

7x + 30 - 2x = 75

5x = 45

x = 9

15 - 9 = 6

y = 6

9 pounds of chocolate candies and 6 pounds of sugar candies

The owner should use 6 pounds of the chocolate candies, and the other 9 pounds of the sugar candies.

A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.

Given that owner of a grocery store wants to mix two kinds of candy together to make 15 lb that he can sell for $5.00 per lb.

He wants to use chocolate candies that he sells for $7.00 per lb and sugar candies that he sells for $2.00 per lb.

x + y = 15

y = 15 - x

(7x + 2y) / 15 = 5

7x + 2y = 15 x 5 = 75

7x + 2  (15 - x) = 75

7x + 30 - 2x = 75

5x = 45

x = 9

Now 15 - 9 = 6

y = 6

Threfore, we conclude that 9 pounds of chocolate candies and 6 pounds of sugar candies.

Learn more about equations here;

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Answer:

Step-by-step explanation:

Going from (15/8,0) to (17/8,1/2), we see that x (the 'run') increases by 2/8, or 1/4, and that y (the 'rise') increases by 1/2.  Thus, the slope of this line through the given points is m = rise / run = (1/2) / (1/4) = 2.

Using the point-slope formula for the equation of a line, we obtain:

y - 0 = 2(x - 15/8), or

y = 2(x - 15/8) (simplest form), or

8y  = 2x - 15/4, or

2x - 8y = 15/4, or

8x - 32y = 15

All of these are correct; they are 'equivalent.'

Answer:

5.83

Step-by-step explanation:

Find the mean:

10(.1) + 15(.2) + 20(.2) + 25(.4) + 3-).1)

u = 21

Find the standard deviation:

[tex]\sqrt{(10 -21)x^{2} (.1) + (15 -21)x^{2} (.2)+(20-21)x^{2} (.2)+(25-21)x^{2} (.4)+(30-21)x^{2} (.1)}[/tex]= 5.83

The standard deviation is of 5.83.

The expected value is given by each value multiplied by it's relative frequency, thus:

[tex]E(X) = 0.1(10) + 0.2(15) + 0.2(20) + 0.4(25) + 0.1(30) = 21[/tex]

The standard deviation is given by the square root of the sum of the difference squared of each value and the mean, multiplied by it's relative frequency.

Then:

[tex]\sqrt{V(X)} = \sqrt{0.1(10 - 21)^2 + 0.2(15 - 21)^2 + 0.2(20 - 21)^2 + 0.4(25 - 21)^2 + 0.1(30 - 21)^2} = 5.83[/tex]

The standard deviation is of 5.83.

A similar problem is given at https://brainly.com/question/24628525

Answer:

X=6

Step-by-step explanation:

Subtract 1 from 2.5 to get 1.5

Multiply by 4 to get 6

So, X=6

Answer:

x=6

Step-by-step explanation:

6/4=1.5

and 1.5+1=2.5

Answer:

The greatest growth was between years 1 and 2. The growth between those years was about 36%.

Step-by-step explanation:

Divide 19 by 14 to check, it gets you 1.357 which rounds to 1.36, or an increase of 36%

Answer:

O -1+ 3/

Step-by-step explanation:

brainest plz

28 is the number of tickets of the second prize

A word problem is a mathematical exercise where significant background information on the problem is presented in ordinary language rather than in mathematical notation

Given that:

The first time wins = 60 tickets

The second time, she won a bonus, which was 4 times the number of tickets of the second prize

Altogether she won 200 tickets

Let N represent the number of tickets of the second prize

This can be written as:

60 + N + (4×N) = 200

60 + N + 4N = 200

60 + 5N = 200

5N = 200 -60

5N = 140

N = 140/5

N = 28

Therefore, the number of tickets of the second prize is 28

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Answer:

1.Perpendicular

2. Parallel

3. Parallel

4.

Step-by-step explanation:

If two lines are parallel, slope is equal

If perpendicular, product of slopes is -1

y = mx + c is the general equation of a line form

m represents slope

1. slope is -1 and 1, they are perpendicular

2. Slope is 5 in both cases, they are parallel

3. slope is equal; equation ii is same as i if rewritten

They are parallel

4.

Answer:72

Step-by-step explanation:

The big one is 4 times the small one

Answer:

$30+m($5 x h)

he will be working for 21 h

Step-by-step explanation:

So, Steve has $30, so you want to add that amount to the amount he earn, which is $105.

$5 times 21 is $105

h = 21

but we still need for m but, we already have m

m = $105

Answer:

70

Step-by-step explanation:

70% of 100 is 70 meaning there would be 70 blue beads

Answer:

8w-7/4

Step-by-step explanation: