what is -2(3x^2-7x+4)+(x+1)(x-7)

Answers

Answer 1

Answer:

−5^2x2+8x−15

Step-by-step explanation:

Hope it helps!


Related Questions

Isabel's shop sells 5 1/2 quarts of ice cream each day. How much is this in pints?

Answers

Answer:

13 pints.

Step-by-step explanation:

1 US liquid quart = 2 US liquid pint

6.5 quarts = how many pints?

Cross multiplying gives:

× 2 pints = 13 pints

Answer:

11 pints

Step-by-step explanation:

Each gallon is 4 quarts, and each quart is 2 pints. If a quart is 2 pints, then half a quart is 1 pint. Basically to convert, you just multiply the amount of quarts by two, and then that's the number of pints. 5 1/2 times 2 is 11, so 5.5 quarts is 11 pints.

what is the correct answer?

need help ASAP!!

Answers

I’m pretty sure the answer is the last choice, invalid conclusion. This is because the statement isn’t true. It states that x=7, but when it is plugged into the equation, the equation isn’t true because both values on opposite sides are unequal.
I think the answer is “invalid conclusion”. Since the base of the principle is untrue, any conclusions stemming from it will also be untrue.

1. 3u+z=15
u+ 2z = 10​

Answers

Multiply the second equation by -3 in order to cancel out U

3u+z=15
-3(u+2z)=10

3u+z=15
-3u-6z=-30. Then u subtract those two equations

-5z=-15
Z=3

To solve for u, plug in the z in one of the equation (doesn’t matter which one)

3u+3=15
3u=12
U=4

Ur answer is
U=4. Z=3

The are in the rectangle below can be represented by 13x^2 - 4x + 10 and the area of the trapezoid can be represented by 9x^2 - 8x + 4. Write an expression to represent the area of the shaded region

Answers

Answer:

The area of shaded region

[tex]4x^2+4x+6[/tex]

Step-by-step explanation:

We are given that  the area of rectangle

[tex]13x^2-4x+10[/tex]

The area  of trapezoid represented by

[tex]9x^2-8x+4[/tex]

We have to find the expression to represent the area of the shaded region.

To find the area of shaded region we will subtract the area of trapezoid from the area of rectangle.

Therefore, the area of shaded region

Area of rectangle-Area of trapezoid

[tex]13x^2-4x+10-(9x^2-8x+4)[/tex]

[tex]13x^2-4x+10-9x^2+8x-4[/tex]

[tex]4x^2+4x+6[/tex]

Hence, the area of shaded region

[tex]4x^2+4x+6[/tex]

Olga went on a 59-mile bike trip last week. By Thursday
night she had traveled 28 miles of the total distance.
Which percent is a reasonable estimate of how much of
the trip Olga completed by Thursday night?
50%
B
75%
с
200%
150%

Answers

Answer:

b

Step-by-step explanation:because i am right lol

the graph shows the relationship between the number of pounds of pears purchase and the total cost of the pears.

what is the cost of 1 pound of pears ​

Answers

The answer is $1.75 because that’s what the graph shows per pound of pears

PLEASE ANSWER QUICK I WILL MARK YOU BRAINLIST
f(-x)=|x|+6

Answers

Answer:

x+6

Step-by-step explanation:

to find f(-x) plug in -x for all the values of x in the equation

since the absolute value of -x is x you get x+6

I need help on this one

Answers

593-540=53
9 R8
I hope that helped u:))

Gabriel has 27 fish in 3 tanks. He has the same number of fish in each tank. How many fish are in each tank?

Answers

He has 9 fish in each tank

Explanation: If you do 27 divided by 3 you get 9!

Use the Commutative Property to write an expression equivalent to -5d + 6

Answers

Answer:

6 - 5d is an expression equivalent to -5d + 6 using the commutative Property of Addition.

Step-by-step explanation:

Commutative Property of Addition

We know that we can add two numbers in any order.

For example,

Let 'a' and 'b' be two numbers.

We can add  'a' and 'b' numbers in any order, such as

a + b = b + a

Thus,

a + b = b + a is represented using the commutative Property of Addition.

In our case,

-5d + 6 can be written or represented using the commutative Property of Addition, such as

-5d + 6 = 6 - 5d

It is clear that -5d + 6 can be written in any order such as 6 - 5d.

In other words, 6 - 5d is an expression equivalent to -5d + 6 using the commutative Property of Addition.

Therefore, 6 - 5d is an expression equivalent to -5d + 6 using the commutative Property of Addition.

2(x +5)=(x-4) ?
Step by step

Answers

Answer:

Step-by-step explanation:

Here you go mate

Use PEMDAS

Parenthesis,Exponent,Multiplication,Division,Addition,Subtraction

Step 1

2(x+5)=(x-4)  Equation/Question

Step 2

2(x+5)=(x-4)  Remove parenthesis

2x+10=x-4

Step 3

2x+10=x-4  Subtract 1x from sides

x+10=-4

Step 4

x+10=-4  Subtract 10 from sides

answer

x=-14

Hope this helps

[tex]\text {Hi There! Let's Solve this Problem!}[/tex]

[tex]\text {\underline {The First Step is to Simplify}}[/tex]

[tex]\text {2*x=2x}\\\text {2*5=10}[/tex]

[tex]\text {Your New Problem Is: 2x+10=x-4}[/tex]

[tex]\text {\underline {The Next Step is to Subtract x}}[/tex]

[tex]\text {2x+10-x=x-4-x}[/tex]

[tex]\text {Your New Problem Is: x+10=-4}[/tex]

[tex]\text {\underline {The Final Step is to Subtract 10}}[/tex]

[tex]\text {x+10-10 (Crosses Out)}\\\text {-4-10}[/tex]

[tex]\text {Your Answer Would Be:}[/tex]

[tex]\Huge\boxed {x=-14}[/tex]

[tex]\text {Best of Luck!}[/tex]

Someone please help!!

Answers

G it would be g because it’s 13.5 in

Answer: I think the answer is F but I don’t know because I haven’t seen this in forever

Step-by-step explanation:

I will give brainlist to people that answer this iready

Answers

9514 1404 393

Answer:

  n = -25

Step-by-step explanation:

The next step can be to subtract 2/5n.

  [tex]\dfrac{3}{5}n+15=10+\dfrac{2}{5}n\\\\\dfrac{1}{5}n+15=10 \qquad\text{subtract $\dfrac{2}{5}n$}\\\\\dfrac{1}{5}n=-5 \qquad\text{subtract 15}\\\\ \boxed{n=-25} \qquad\text{multiply by 5}[/tex]

Can you plzzzzzzzz help meeeee it is urgent for the 1st and second question

Answers

Answer:

n<-9

p (put the symbol already there here) -7

Step-by-step explanation:

Hope this helps!!

(9-6)x8+2 CAN SOMEONE HELP PLS AND THANK U

Answers

(9-6)x8+2

3x8+2

24+2

answer= 26

Answer:

26

Step-by-step explanation:

This is what I got! I hope this helps!

Identify the initial amount a and the decay factor b in the exponitial exponential functional y=5x 0.5

Answers

Answer:

b

Step-by-step explanation:

the initial is b

Jack cuts a block of wood along the red line when he looks at the newly exposed face what is the shape of the cross section​

Answers

Answer:

d i would think hope it helps

Answer:

rectangle 10 by 6 or something like that

Step-by-step explanation:

Sam is 2 yrs old, his mother is 28 yrs old. In how many years will Sam's mother be 3 times as old as him

Answers

Answer:

11 years

Step-by-step explanation:

in 11 years

Sam would be 13

and his mother would be 39

39/13 = 3

After 11 years, Sam would be 13 and his mother would be 39.

What is the unitary method?

The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.

Let the age of Sam's mother = M

Let the age of Sam = S

We are given that Sam is 2 yrs old, his mother is 28 yrs old.

According to the given condition

M = 3S

Then we can see that

39/13 = 3

Hence Sam would be 13 and his mother would be 39 years old.

Learn more about the unitary method, please visit the link given below;

https://brainly.com/question/23423168

#SPJ5

solve the following problems: Find the indicated values mAB m ABC mBAC mACB

i need help solving 1 of my rsm hwrk questions please help

Answers

First, make an equilateral triangle and label all the points. All the line segments that have a ratio of 1, mark those as congruent and all the line segments that have a ratio of 3, mark those congruent as well. Now, what we can is 3 congruent triangles by SAS, (AMK = BPM = CKP). Then, we take MP, PK, and KM and we know those are congruent because of CPCTC. That means all the sides are equal in the inner triangle which means it is an equilateral triangle.

Let me know if you have any questions

What is the measure of angle B in the triangle?

This triangle is not drawn to scale.

Enter your answer in the box.

m∠B=
°



A triangle labeled ABC with the angles A forty degrees, angle B parenthesis two x minus thirty parenthesis degree, angle C parenthesis x plus twenty parenthesis degrees

Answers

Answer:

m∠B is 70°

Step-by-step explanation:

Knowing angle A is 40°, angles B and C combine for the remaining 140°. To figure out what angle B and C are (although this question asks for B, they could very well be the same, and this could be an isosceles triangle!), use the equation (2x - 30) + (x + 20) = 140.

(2x - 30) + (x + 20) = 140 (Combine 2x and x to get 3x.)

3x - 30 + 20 = 140 (Add -30 and 20 to get -10.)

3x - 10 = 140 (Add 10 to both sides. This undoes the -10.)

3x = 140 + 10 (Add 140 and 10 to get 150.)

3x = 150 (Divide both sides by 3. This undoes the multiplication by 3.)

x = 150/3 (Divide 150 by 3 to get 50.)

x = 50

Now that we know what x is, substitute x for 50 in the equation.

(2(50) - 30) + (50 + 20) = 140

(100 - 30) + (50 + 20) = 140

70 + 70 = 140

140 = 140

Both sides are the same, so x is 50, and angle B's (and C's!) measurement is 70°. (So, yes, as I had said, this is an isosceles triangle.)

to answer is 70 :) I can do a step by step if you want

Jessie is going to the county fair. The cost of admission is $5.00 and it is $2.00 for each ride. If Jessie has $19.00, Write an equation to determine how many rides Jessie can ride

Answers

Answer:

Step-by-step explanation:

Lets say each ride is r

2.00r + 5.00 = 19.00

R=7 because $2.00(7)+$5.00=$19.00
$14.00+$5.00=$19.00 so therefore she can only ride 7 rides.

URGENT!!!

*Click on the picture ty <3*

Answers

Answer:

I believe the last answer is correct

Step-by-step explanation:

9514 1404 393

Answer:

  [tex]\dfrac{2}{3}x-\dfrac{13}{12}=-\dfrac{5}{12}x[/tex]

Step-by-step explanation:

There are a couple of ways to get equivalent equations. We can collect the constants on one side of the equal sign, or we can collect the variable terms on one side of the equal sign.

Constants:

  [tex]\dfrac{2}{3}x-\dfrac{5}{6}=-\dfrac{5}{12}x+\dfrac{1}{4} \qquad\text{given}\\\\ \dfrac{2}{3}x-\dfrac{10}{12}-\dfrac{3}{12}=-\dfrac{5}{12}x \qquad\text{subtract $1/4=3/12$}\\\\ \dfrac{2}{3}x-\dfrac{13}{12}=-\dfrac{5}{12}x \qquad\text{matches last choice}[/tex]

Note that if we add 13/12 to this equation, the constant will be on the right, as in the second choice. However, that constant will be 13/12, not -7/12, so the second choice is not equivalent.

__

Variable terms:

  [tex]\dfrac{2}{3}x-\dfrac{5}{6}=-\dfrac{5}{12}x+\dfrac{1}{4} \qquad\text{given}\\\\ \dfrac{8}{12}x+\dfrac{5}{12}x-\dfrac{5}{6}=\dfrac{1}{4} \qquad\text{add $\dfrac{5}{12}x$}\\\\ \dfrac{13}{12}x-\dfrac{5}{6}=\dfrac{1}{4} \qquad\text{not equivalent to 3$^{\text{rd}}$ choice}[/tex]

Note that if we subtract 13/12x from both sides of this equation, the x-term will be on the right, as in the first choice. However, it will be -13/12x, not 1/4x, so the first choice is not equivalent, either.

The last offered choice is the equivalent equation.

Please help me i will give brainlist

the first image is an example and the second is what i need help on, and please label which one is an inverse operation, solution, and checking it.

Answers

here are the answers

x + 3= -x -5

what's x?​

Answers

Answer:

-4

Step-by-step explanation:

Answer:

x = -4

Step-by-step explanation:

can someone help with functions stats and trig test ? it’s urgent i need to pass

Answers

Answer:

ya i can

Step-by-step explanation:

Today, everything at a store is on sale. The store offers a 20% discount. Match the following items with their sale price.

Answers

Answer:

100 - 20 = 80

original cost/100 X 80 = sale price

solve for y and the exterior angels

Answers

Answer:

y= 125 degree by linear pair and exterior angles

The owner of a fitness center conducted a survey using 20 people at the center, selected at random. Each person was given 30 seconds to do as
many push-ups as possible, and 30 seconds to do as many sit-ups as possible. The data is shown in the graph.
Comparison of
Push-Ups and Sit-Ups
30
25
20
Number of Sit-Ups
15
10+
person
0 2 4 6 8 10 12 14 16 18 20
Number of Push-Ups
Which two statements correctly describe the data?

Answers

Answer:

Step-by-step explanation:

I'm not sure but u thing c

help will mark you brainlist!

Answers

If all angles add up to 360 and D is 71 and it is congruent to a so 71 x 2 =142
360 - 142 = 218 since there is 2 angles decide by 2 218/2 = 109
B=109

red blood cell is about 7.5 micrometers in diameter. A coarse grain of sand is about 70 micrometers in diameter. Find the difference between the two diameters.
need help plz

Answers

Answer:

Difference = 62.5 micrometer

Step-by-step explanation:

Given that:

Diameter of red blood cell = 7.5 micrometer

Diameter of coarse grain of sand = 70 micrometers

For calculating the difference between two diameters, we will subtract the diameter of red blood cell from diameter of grain of sand.

Difference = 70 - 7.5

Difference = 62.5 micrometer

Hence,

Difference = 62.5 micrometer

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