help! i need help on this math

Help! I Need Help On This Math

Answers

Answer 1

Answer:

4

10

25

-1

-4

Step-by-step explanation:

Your answers are correct.

The coefficient of -x^2 is -1 since -x^2 is the same as -1x^2.

The coefficient of -4x is -4.


Related Questions

an event is called__ if the probability it will occur equals 0. help me please, i beg you

Answers

Answer:

impossible

Step-by-step explanation:

If there is no chance of something happening, then it is...

Please help me please thank you so much in advance

Answers

Answer:

51 degrees

Step-by-step explanation:

Enter the equation of the line in slope-intercept form.

The line parallel to y =
5/4x + 8 that passes through (−8, 0).

The equation of the line that passes through (−8, 0) is y = ???

Answers

Answer:

y = 5x/4 + 10

Step-by-step explanation:

If two lines are parallel, the slopes are equal

The equation of a straight line is y = mx + c

where m is slope and c is y-intercept

So in this case 5/4 is also the slope m of the second line

we can write the equation as;

y-y1 = m(x-x1)

y-0 = 5/4(x + 8)

y = 5x/4 + 10

Find the equation of the linear function x 1 2 3 4 y 6 9 12 15​

Answers

Answer:

The equation of the linear function is y = 3x + 3

Step-by-step explanation:

The form of the linear equation is y = m x + b, where

m is the slopeb is the y-intercept

The rule of the slope is m = [tex]\frac{y2-y1}{x2-x1}[/tex] , where

(x1, y1) and (x2, y2) are two points on the line

∵ A line passes through points (1, 6) and (2, 9)

x1 = 1 ad y1 = 6

x2 = 2 and y2 = 9

→ Use the rule of the slope above to find the slope of the line

∵ m = [tex]\frac{9-6}{2-1}[/tex] = [tex]\frac{3}{1}[/tex] = 3

m = 3

→ Substitute the value of m in the form of the equation above

y = 3x + b

→ To find b substitute x and y in the equation by the coordinates of any

   point on the line

∵ x = 1 and y = 6

∴ 6 = 3 (1) + b

∴ 6 = 3 + b

→ Subtract 3 from both sides

∵ 6 - 3 = 3 - 3 + b

3 = b

→ Substitute the value of b in the equation above

∴ y = 3x + 3

The equation of the linear function is y = 3x + 3

1 point
6. At five below there is a discount of $5 for every 4 items you buy. If the
receipt show discount of $20 how many items did you buy?*
HINT: This problem is similar to #6, page 90
O A You bought 20 items
B You bought 15 items
C You bought 16 itmes
D You bought 8 items

Answers

c. 5x4=20

4x4=16 items.

how do i solve for x​

Answers

That the answer for x

Answer:

x=-27

Step-by-step explanation:

4/7x * 14x = 1/14(14x) + 5/2x(14x)

Multiply both sides by 14x

8 = x+35

-27 = x

What is the final amount if 943 is decreased by 13% followed by a further 6% decrease?
Give your answer rounded to 2 DP.​

Answers

Answer:

943-13% = 820.41

820.41 - 6% = 771.1854

Step-by-step explanation:

HELP! The value of y is directly proportional to the value of x. Given y = 11 when x = 77. What is the value of y when x = 98?


17

7

686

14

Answers

Answer:

The answer should be 14.

Step-by-step explanation:

14×7=98

graph the line
y+5=1/4(x-3)

Answers

Answer:

Graph

Step-by-step explanation:

Between what two consecutive number does - 12 square root lie ?

Answers

Answer:

3 and 4

Step-by-step explanation:

PLEASE help i need help

Answers

Answer: B = D

because we have:

[tex]x^{1/3}.x^{1/3}.x^{1/3}=x^{1/3+1/3+1/3}=x^{3/3}=x^{1}=x[/tex]

[tex]\frac{1}{x^{-1} }=\frac{1}{\frac{1}{x} }=x[/tex]

Step-by-step explanation:

Help me plz nd ty:)
is -13 an integer

Answers

Answer:

yes it is an integer

Step-by-step explanation:

please mark as brainliest

Answer:

YES -13 is an integer

Step-by-step explanation:

It is an integer because integers are whole numbers. This means that it doesn't include decimals, fractions, and irrational numbers. Even though not all negative numbers are integers, this one is, and that is because it is not a decimal, fraction, or irrational number.

Hope this helps! ^^

5/-8 divided by 1 3/7

Answers

Answer:

3

Step-by-step explanation:

You would do 3/5 =6 then do 13/7 = 18/6=3

IF U HELP ME THANK YOU , I need help on this

Answers

Answer: <1 is 46

Step-by-step explanation: If 4x+10+2x-16=180 becuase they are same sided interior angle they have to equal 180. and if you do the process you get X=31 and if you plug it in you get <1=46 and to check it you have to plug it in the other and add thoses two up and see if you get 180. which it does.

Look at triangle ABC.

Coordinate grid shows negative 5 to positive 5 on the x axis and y axis at intervals of 1. A triangle ABC is shown with A at ordered pair 4, 5, B at ordered pair 2, 1, and C at ordered pair 4, 1.

What is the length of side AB of the triangle?

2
Square root of 20
6
Square root of 38

Answers

Answer:

square root of 20

Step-by-step explanation:

Answer:

sq root of 20

Step-by-step explanation:

When x=1/3 and y=1/6, −2x+8y=

Answers

Answer:

The answer is 2/3.

Step-by-step explanation:

Answer:

2/3

Step-by-step explanation:

-2x+8y

-2(1/3)+8(1/6)

=2/3

What is 325 percent of $120? Use the diagram to solve the problem.

A 2-column table with 5 rows. Column 1 has entries 100 percent, 100 percent, 100 percent, 25 percent, Total 325 percent. Column 2 has entries 120 dollars, 120 dollars, 120 dollars, A, Total B.

A =
B =

Answers

Answer: 390 I’m sorry if it was wrong but that what I got

Answer: A: 30  B: 390.                            

1/3 ÷ (-2 2/3)=
what is the answer to this

Answers

Answer:

-0.125 or -1/8

The function f(t) = 349.2(0.98)t models the relationship between t, the time an oven spends cooling and the temperature of the oven. A 2-column table with 5 rows. The first column is labeled time (minutes)t with entries 5, 10, 15, 20, 25. The second column is labeled oven temperature (degree Fahrenheit) f(f) with entries 315, 285, 260, 235, 210. For which temperature will the model most accurately predict the time spent cooling? 0 100 300 400

Answers

Answer:

C. 300

We need to find the temperature that most resembles with the model

We can easily see the graph if we plot it using a calculator

f(t) = 349.2(0.98)^t

Case a.  0

Zero is only achievable as the cooling time goes to infinity. This is not the case.

Case b.  100

for f = 100,

t ≈ 61.6,

which is out of the values of the table

Not the correct option

Case c.  300

for  f = 300,

t ≈ 7.5,

which is in range with the values of the table

Answer:

CCCCCC

Step-by-step explanation:

Jana and Tim both sell cleaning products to local housecleaning services. When Jana orders from the manufacturer of the products she sells, she is given a 15% discount on her total purchase, and she must pay a $15 shipping fee. Each of Tim's orders to his manufacturer is charged at 85% of the full purchase price of the products, and he pays a $4 handling fee, plus $11 for shipping. Choose ALL of the statements that are true. When Jana and Tim purchase products having the same total value, their costs for the purchases will always be the same. Jana and Tim will never spend exactly the same amount on purchase orders to their manufacturers. Jana and Tim will only spend the same amount on purchase orders to their manufacturers when they each order products with a total purchase value of $100. If Jana switches to Tim's manufacturer for her product purchases, her cost will decrease. If Tim switches to Jana's manufacturer for his product purchases, his cost will remain the same.

Answers

Answer: Jana and Tim will only spend the same amount on purchase orders to their manufacturers when they each order products with a total purchase value of $100.

Step-by-step explanation:

Jana and Tim would only be incurring same amount when both total purchase is to a value of $100. This is so because by purchasing a goods worth same amount, they both end up incurring $15 dollar additional cost. Jana would spend $15 on shipping her goods, while Tim would pay $4 Handling fees and $11 dollar shipping fee which would also amount to $15. What this means is total spent for both Jana and Tim would amount to $115 each.

Cassandra's money that she makes from selling cookies can be determined by the equation y = 2X -
20. To not lose money she has to sell over 10 cookies per day but she only makes a batch of 15
cookies each day. What is the range in this situation if she does not lose money?
Answer choices shown in picture. Please help! I put 45 points and i’ll give you a brainliest if it’s correct!

Answers

Answer:

E

Step-by-step explanation:

Because the y-intercept is (0,-20)

Isolate a variable in each system. You may need to use the distributive property to simplify the equation. Show your work.

3x - 4y = -7
4x + 3y = 24

Answers

Answer:

1.  x=-7/3 + 4y/3

2. x= 6- 3y/4

Step-by-step explanation:

to isolate the variable you simply solve for it by moving all the terms which don't contain x to the right by multiplying, subtracting, adding, and dividing

You type 282 words in 6 minutes.How many words do you type in one minute?

Answers

282/6 = 47 words per minute

Answer:

47

Step-by-step explanation:

282 words in 6 minutes

? in 1 minutes

282÷6=47....

47×6=282

x-2(-x+9)=0
What is the value of x?

Answers

Answer:

the answer is x =6

Step-by-step explanation:

hope this helps!!

explain to "the 6th grader" how to find the area of a square​

Answers

Answer:

You find an area of a square by multiplying the width and the length.

Answer:

you multiply the length by the width.

Step-by-step explanation:

the attached file shows what the length and width are.

Help me what’s the answer.

Answers

Answer:

Answer 3

Step-by-step explanation:

We know if two line pass through each other that the opposite angles will always be equal. Do we know it is simalar and that it is angle angle (aa), not angle side angle (asa). And we can also figur out GHF is similar to KHJ because it is a mirror, unlike JHK.

Find an equation for the perpendicular bisector of the line segment whose endpoints
are (-1,5) and (-7, -7).

Answers

Answer:

The equation of the perpendicular bisector is y =  [tex]\frac{-1}{2}[/tex] x - 3

Step-by-step explanation:

The form of the linear equation is y = m x + b, where

m is the slopeb is the y-intercept

The rule of the slope is m = [tex]\frac{y2-y1}{x2-x1}[/tex] , where

(x1, y1) and (x2, y2) are two points on the lineThe rule of the mid-point is M = ([tex]\frac{x1+x2}{2},\frac{y1+y2}{2}[/tex])The product of the slopes of the perpendicular lines is -1, that means if the slope of one is m, then the slope of the other is [tex]\frac{-1}{m}[/tex] (we reciprocal m and change its sign).

∵ A line passes through points (-1, 5) and (-7, -7)

x1 = -1 ad y1 = 5

x2 = -7 and y2 = -7

→ Use the rule of the slope above to find the slope of the line

∵ m = [tex]\frac{-7-5}{-7--1}[/tex] = [tex]\frac{-12}{-7+1}[/tex] = [tex]\frac{-12}{-6}[/tex] = 2

m = 2

→ Reciprocal the value of m and change its sign to find the slope of

  the line perpendicular line

m⊥ = [tex]\frac{-1}{2}[/tex]

→ Substitute in the form of the equation above

∵ y = [tex]\frac{-1}{2}[/tex] x + b

∵ The ⊥ line is also the bisector of the given line, find the mid-point

   of the given line because it is also lying on the ⊥ line

∵ M = ([tex]\frac{-1+-7}{2},\frac{5+-7}{2}[/tex]) =  ([tex]\frac{-8}{2},\frac{-2}{2}[/tex]) = (-4, -1)

M = (-4, -1)

→ Substitute the coordinates of M in the equation of the ⊥ line above

∵ x = -4 and y = -1

∴ -1 = [tex]\frac{-1}{2}[/tex] (-4) + b

∴ -1 = 2 + b

→ Subtract 2 from both sides

-3 = b

→ Substitute the value of b in the equation

∴  y =  [tex]\frac{-1}{2}[/tex] x + -3

∴ y =  [tex]\frac{-1}{2}[/tex] x - 3

The equation of the perpendicular bisector is y =  [tex]\frac{-1}{2}[/tex] x - 3

Write an equation of the line that passes through the points (-1,8) and (2,-4)

Answers

Answer:

y=mx+b

y=-4x +12 is your equation

m= yo

your slope

Step-by-step explanation:

Answer:

The equation of the line that passes through the points (-1,8) and (2,-4) is:

[tex]y=-4x+4[/tex]

Step-by-step explanation:

Given the points

(-1,8)(2,-4)

[tex]\mathrm{Slope\:between\:two\:points}:\quad \mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}[/tex]

[tex]\left(x_1,\:y_1\right)=\left(-1,\:8\right),\:\left(x_2,\:y_2\right)=\left(2,\:-4\right)[/tex]

[tex]m=\frac{-4-8}{2-\left(-1\right)}[/tex]

[tex]m=-4[/tex]

As the point-slope form of the line equation is

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

where m is the slope.

substituting the values m = -4 and the point (-1,8)

[tex]y-\(8\right=-4\left(x-\left(-1\right)\right)[/tex]

[tex]y-8 = -4(x+1)[/tex]

Add 8 to both sides

[tex]y-8+8=-4\left(x+1\right)+8[/tex]

[tex]y=-4x+4[/tex]

Therefore, the equation of the line that passes through the points (-1,8) and (2,-4) is:

[tex]y=-4x+4[/tex]

Find the length of the shortest side ( rounded to 2DP) if the area of the rectangle is 28m^2

Answers

Answer:

4.39 to 2DP.

Step-by-step explanation:

x * (x - 2) =  28

x^2 - 2x = 28

Solving by completing the square:

(x - 1)^2 - 1 = 28

(x - 1)^2 = 29

x = +/-√29 + 1

x = 6.38516, -4.38516

x must be positive so it = 6.38516.

The shortest side = x - 2 = 4.385.

Winston plans to hire a moving company to help him
move. The company charges $80 per hour and a flat
rate of $150 for the truck and packaging materials.
Winston wants to spend no more than $500 on
the total moving costs. If the company charges for
a whole number of hours, what is the maximum
number of hours for which Winston can hire the
moving company?

Answers

The maximum whole number of hours is 4 hours.
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