PLEASE ANSWER SOON AND ONLY IF YOU KNOW THE ANSWER! I NEED YOUR HELP!

The graphs of [tex]y = x^2 - 7x + 7[/tex] and the line [tex]y = -3[/tex] intersect at two points. What is the sum of the x-coordinates of these two points?

Answers

Answer 1

Answer:

x = 5, x = 2

Step-by-step explanation:

y=x²-7x+7 but also y=-3

so x²-7x+7=-3

x²-7x+10=0

when factorising think about 2 numbers you multiply by each other tp give 10 but at the same time their sum is 7

-5x-2=10

-5+-2=-7

so (x-5)(x-2)=0

(note: multiply the two brackets to check if ur answer is correct and that it gives x²-7x+10=0)

x-5=0 so x=5

but also x-2=0 so x=2


Related Questions

please please please help quick

Answers

Answer:

[tex]3\sqrt{5}[/tex]

Step-by-step explanation:

Since the triangle has a right angle, we are going to use pythaogoran theoem, which is [tex]a^{2} +b^{2} =c^{2}[/tex], where a and b are the legs and and c is the hypotunese/ slated side.  Let set it up.

[tex]3^{2} +6^{2} =c^{2}[/tex]

9+36=c^2

45=c^2

[tex]\sqrt{45}[/tex]=

Then we are going to find a perfect squarre root(1,4,9,16,25....) to simplify the radical

The perfect square root is 9 because 9 goes into 45 5 times.

[tex]\sqrt{9x5}[/tex]

Then take the sqr root of 9 and we have [tex]3\sqrt{5}[/tex]

please help me show my work!!! i got the answer but i need to show my work!

Answers

Just ask the person you got the answer from to send you a picture or something

ITS RATIOS
BTW DON'T MIND I ANSWERED IT I CLICKED ONE BY ACCIDENT

Answers

Answer: 9:4

Step-by-step explanation:

I think

1: how to convert fractions into presentage?

2: what is 7/25 as a presentage

3: what is 27/100 as presentage ​

Answers

Answer:

1: divide the two numbers and then multiply by 100

2: 28%

3. 27%

Step-by-step explanation:

2. 7/25= .28 -> .28x100= 28

3. 27/100= .27 -> .27x100= 27

The height of a boulder falling off a 500 meter cliff can be modeled using a quadratic equation.
Part A: Write the quadratic equation to represent this situation.
Part B: Determine the time it will take the boulder to reach the ground.
Part C: In one paragraph, using your own words, explain your work in Steps A and B.​

Answers

Answer:

The answer is t=4 s

Step-by-step explanation:

Answer: T=4s

Step-by-step explanation: it is option 2

Helpp!!!!!!!Plz.....

Answers

Answer:

MJK=90

MJL=63

JLK=63

KML=27

MNL=126

Step-by-step explanation:

If this is a perfect rectangle, then I should be correct:

Each angle of a rectangle is 90 degrees, so MJK is 90

Since we know angle KJL is 27, and MJK is 90, just subtract them to get 63.

Angle JLK should be equal to angle MJL so it is also 63

Angle KML should be equal to angle KJL so it would also be 27

And finally, angle JKN should be 27 so 27+27=54. And since all angles of a triangle add up to 180, you can get angle MNL by subtracting 180-54 to get 126 because angle MNL and JNK/KNJ are equal to each other

Carmen is buying a fitness tracker that costs $129.95. She has a coupon for 20%. After the coupon is used, 7% tax will be charged. What is the final cost of the fitness tracker with tax?

Answers

9514 1404 393

Answer:

  $111.24

Step-by-step explanation:

The use of a 20% off coupon causes the price to be multiplied by (1 -20%) = 0.80. The addition of 7% tax causes the discounted price to be multiplied by (1 +7%) = 1.07. Multiplying the price by these two factors gives ...

  $129.95 × 0.80 × 1.07 = $111.24

The final cost with tax is $111.24.

Pls help me I really need it

Answers

9514 1404 393

Answer:

  y = 5

Step-by-step explanation:

Side lengths in an isosceles right triangle are the same length.

  y = 5

The diameter of the circles is 2
Cm what is the area of the shaded section

Answers

If the diameter is 2, one side of the square has a length of 4 (basically two diameters).

Then, the equation for the shaded area is Area(square) - 4*Area(circle)
=(length*width)-4(2pi*radius)
=(4)(4)-4(2pi)(1)
=16-8pi

(FYI that the radius is 1 because it’s just half of the diameter.)

Which of the following is the converse of the statement below?
"If two segments have the same measure, then the segments are congruent."
o Two segments are congruent if and only if they have the same measure.
o If two segments do not have the same measure, then they are not congruent.
o If two segments are not congruent, then they do not have the same measure.
o If two segments are congruent, then they have the same measure.
1
2.
3
4
5

Answers

Answer:

Two segments are congruent if and only if they have the same measure.

Step-by-step explanation:

Because they have the same measurement which means that they are congruent if they have the same measure.

11. The poll wanted to announce a separate conclusion about the percent
who favor school prayer among those who identify themselves as
evangelical Christians. This group was a portion of the original group.
What can you say about the margin of error for this conclusion? Explain
your answer.

Answers

Answer:

The ratio of 6th grade students who play soccer to students who play basketball is 4:3. If there are 56 6th graders, how many play basketball?

Step-by-step explanation:

can you please help me

Mary rounds these numbers to the nearest hundred. Which number does she round to 400? Choose all that apply. A) 351. B) 369 C). 401. D) 413. E) 448

Answers

Answer:

401

Step-by-step explanation:

Terri wrote the system of linear inequalities.
-3x - 3y > -18
-X<-y
Select all of the ordered pairs that are part of the solution set for this system of linear inequalities.

(-1,5)
(2, 4)
(3, 3)
(4.6)
(5,2)

Answers

Answer:

Step-by-step explanation:

A,b,d

None of the ordered pairs is a solution to the system of linear inequalities.

The given system of inequalities is:

-3x - 3y > -18

-x<-y

From the inequality -3x - 3y > -18

-3(x + y)  >  -18

Multiply both sides by -1

3(x + y)  <  18

Divide both sides by 3

x + y  <  18/3

x  +  y  <  6.......(*)

Also from the inequality -x  <  -y

Multiply both sides by -1

-1(-x)  >  -1(-y)

x   >  y...............(**)

Any ordered pair that is a solution to the system of linear inequalities must fulfil the inequalities in (*) and (**)

Since  none of the ordered pairs given fulfill the conditions in (*) and (**), none of the given options is correct

Learn more on inequalities here: https://brainly.com/question/24372553

x²-x-42
x2 - 49
x² + 66
x2 + 3x - 28
(Simplify the numerator. The denominator may be written in simplest form or completely factored form.)

Answers

Answer:

The least common multiple (LCM) of two or more non-zero whole numbers is the smallest whole number that is divisible by each of those numbers. In other words, the LCM is the smallest number that all of the numbers divide into evenly. ( x − 7 ) ( x + 6 ) ( x + 7 ) ( x 2+ 66 ) ( x − 4 )

Step-by-step explanation:

A pile of sand had a weight of 60kg.
The sand is out into a small bag, a medium bag and a large bag in the ratio 2:3:7
Work out the weight of sand in each bag

Answers

Answer:

Answer is 10:15:35

Step-by-step explanation:

Let the ratio be 2x,3x,7x

then according to question;

2x+3x+7x=60

12x=60

x=5

now put value of x in the ratios

2x=2x5

=10

3x=3x5

=15

7x=7x5

=35

thus,weight of three bags are 10:15:35

I hope it's helpful!

Please hurry!

What is the rate of change of the function shown on the graph? Round to the nearest tenth.

A.) 2.00
B.) 2.50
C.) 5.25
D.) 10.50​

Answers

Answer:

B

Step-by-step explanation:

Please help!!!
Composition of functions~

Answers

Answer:

[tex]\left(g\:\circ \:\:\:h\right)\left(-4\right)=-2[/tex]

Hence, option B) is true.

Step-by-step explanation:

Given

g(t) = t² - 2

h(t) = t + 4

To determine

[tex]\left(g\:\circ \:\:h\right)\left(-4\right)=?[/tex]

Using the formula

[tex]\left(g\:\circ \:\:h\right)\left(-4\right)\:=g\left(h\left(-4\right)\right)[/tex]

In order to determine g(h(-4)), first we need to determine h(-4), so

substituting t = -4 in h(t) = t + 4

h(t) = t + 4

h(-4) = -4 + 4

h(-4) = 0

so we can write

[tex]\left(g\:\circ \:\:\:h\right)\left(-4\right)\:=g\left(h\left(-4\right)\right)=g\left(0\right)[/tex]

now, to determine g(0), substitute t = 0 in g(t) = t² - 2v

g(t) = t² - 2

g(0) = (0)² - 2

g(0) = 0 - 2

g(0) = -2

so, finally we get

[tex]\left(g\:\circ \:\:\:h\right)\left(-4\right)\:=g\left(h\left(-4\right)\right)=g\left(0\right)=-2[/tex]

Therefore,

[tex]\left(g\:\circ \:\:\:h\right)\left(-4\right)=-2[/tex]

Hence, option B) is true.

Please Help! Freshman in high-school Algerbra 1​

Answers

Answer:

yes

Step-by-step explanation:

0-10 is obvious because when you look at the chart you can clearly see that theres alot kidsof

Can someone tell me the answers? Like for example point A is 5,3) please help

Answers

Sure! Please give brainly if I'm correct, and thank you!

A= 5,3

B= 0,0

C= -9,-4

D= -10,4

E= 4,-8

F= 10,10

G= -4,0

H= 0,7

I= -6,-8

J= 9,-2

Which equation can be used to represent "three minus the difference of a number and one equals one-half of the difference of three times the same number and four”?

(1 – n) – 3 = 6 plus 2 left-parenthesis x plus 4 right parenthesis equals StartFraction one-half EndFraction left-parenthesis 3 minus x right-parenthesis.(4 – 3n)
3 – (1 – n) = 6 plus 2 left-parenthesis x plus 4 right parenthesis equals StartFraction one-half EndFraction left-parenthesis x minus 3 right-parenthesis.(4 – 3n)
(n

Answers

LEFT TO THE PARENTHESES

Need help on this please

Answers

Answer:

the fourth option: cannot be determined

Step-by-step explanation:

So the first option is the same as 21 times 9 which is more than 9, so it is incorrect.

The second option is the same as 2.3 times 21 and again its incorrect.

the third option  

the fourth option has the same outcome because the fractions are equal.

therefore it cannot be determined

simplify. Rewrite the expression in the form 9^n. 9^7/9^5

Answers

Answer:

Step-by-step explanation:

9⁷ / 9⁵

9⁽⁷⁻⁵⁾

please help will mark brainliest

Answers

Answer:

[tex] \sqrt{13} [/tex]

in decimal form is 3.60555127

P L E A S E H E L P M E W I LL SC A M Y O U I F U T A K E M Y P O I N T S

Answers

Answer:

its c and no im not scaming L o l

Step-by-step explanation:

In a certain​ chemical, the ratio of zinc to copper is 4 to 11 . A jar of the chemical contains 308 grams of copper. How many grams of zinc does it​ contain?

Answers

Answer: 82.3 g

Step-by-step explanation:Moles Cu = 300 g x 1 mol Cu/63.55 g = 4.72 moles Cu

Moles Zn = 4/15(4.72) = 1.26 moles

mass Zn = 1.26 moles x 65.38 g/mol =

There are between 24 and 40 student in a class. The ratio of boy to girl is 4:7 how many student are in the class

Answers

Answer:
33 Students
Step-by-step explanation:
4+7=11 so the number of students in the class must be a multiple of 11. The only multiple of 11 between 24 and 40 is 33.

Which of the following is equivalent to x4 - y4? Select all that apply.
(-y)(x + y)3
(x2 - y2)2
(x - y)2(x + y)2
O 62 - y2)(x2 + y2)
o 6-y)6+y)(x2+x2)

Answers

Answer: (x^2-y^2) (x^2+y^2)  and  (x-y)(x+y)(x^2+y^2)

Step-by-step explanation:

(x2  − y2) (x2  + y2)  

Expand (x2 − y2) (x2 + y2) using the FOIL Method.

Apply the distributive property.

x^2 (x^2 + y^2 ) − y^2 (x^2 + y )

Apply the distributive property.

x^2 x^2 +x^2 y^2 - y^2 (x^2 y^2 )

Apply the distributive property.

x^2 x^2 + x^2 y^2 - y^2 x^2- y^2 y^2

Combine the opposite terms in x^2 x^2 + x^2  y^2 - y^2  x^2 - y^2 y^2.

Reorder the factors in the terms x^2 y^2 and − x^2 y^2.

x^2 x^2+ x^2 y^2 - x^2 y^2 - y^2 y^2

Subtract 2 2 from 2 2.

x^2 x^2+ 0 - y^2 y^2

Add 2  2 and 0.

x2 x2- y2 y2

Simplify each term.

Multiply x2 by x2 by adding the exponents.

x^4 − y^2y^2

x^4 − y^4

(x-y)(x+y)(x^2+y^2)

(x − y) (x + y) (x^2 + y^2)

Expand (x − y) (x + y) using the FOIL Method.

(x ⋅ x + xy − yx − y ⋅ y) (x^2 + y^2)

Combine the opposite terms in x ⋅ x + xy − yx − y ⋅ y.

(x ⋅ x − y ⋅ y) (x^2 + y^2)

(x^2 − y^2) (x^2 + y^2)

Expand (x^2 − y^2) (x^2 + y^2) using the FOIL Method.

Apply the distributive property.

x^2 (x^2 + y^2) − y^2 (x^2 + y^2)

Apply the distributive property.

x^2 x^2 + x^2y^2 - y^2 (x^2 + y^2)

Apply the distributive property.

x^2 x^2 + x^2 y^2 - y^2 x^2 - y^2 y ^2

Combine the opposite terms in x^2x^2 + x^2y^2 − y^2x^2 − y^2y^2.

x^2x^2 − y^2y^2

x^4 − y^4

please give me brainliest :)

which postulate proves the two angles are congruent?

Answers

Answer:

HL (hypotenuse leg)

Step-by-step explanation:

They share a leg, meaning they must be an equal length, and the hypotenuse is congruent, so the hypotenuse leg theorem says they are congruent.

i
Identify the percent of change as an increase or a decrease.
15 ounces to 5 ounces
increase
decrease
Find the percent of change. Round to the nearest tenth of a percent if necessary.
The percent of change is
%.

Answers

Answer:

It is a 67% decrease

Step-by-step explanation:

First subtract the new amount from the old one

[tex]15-5=10[/tex]

Then divide the difference by the original amount.

[tex]10/15-0.67[/tex]

Move the decimal point over two spots (multiply by 100) to get your percentage.

0.67=67%

Solve the problem
-10n + 6 -4n

Answers

[tex]\bold{Hey\ there!}[/tex]

[tex]\bold{-10n+6-4n}[/tex]

[tex]\bold{COMBINE\ in\ YOUR\ LIKE\ TERMS}[/tex]

[tex]\bold{(-10n - 4n) = -14}[/tex]

[tex]\bold{6=6}[/tex]

[tex]\boxed{\boxed{\bold{Answer: -14n+6}}}\checkmark[/tex]

[tex]\text{\bold{Good luck on your assignment and enjoy your day!}}[/tex]

~[tex]\frak{LoveYourselfFirst:)}[/tex]

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