What is the solution to 2x2+8x=x2-16? x=-4 x=-2 x=2 x=4

Answers

Answer 1

Answer:

2x+8x=x-16?

10x=x-16

9x=-16

x=-16/9?

Step-by-step explanation:

Answer 2

Answer:

X= -4 Or A on egde.

Step-by-step explanation:

I just took the test 2021


Related Questions

What is the slope of this line?

Answers

Answer:

4/5

Step-by-step explanation:

Is my answer correct?

Answers

Answer:

yes

Step-by-step explanation:

What’s the answer to this ?

Answers

Answer:

4th one

Step-by-step explanation:

if you add them

Solve for n.

n - 26 = -13
n =

Answers

Answer:

n= 13

Step-by-step explanation:

.................

Answer:

n=13

Step-by-step explanation:

because 26 is a negative you know that n has to be a positive so you subtract 13 from 26 and that's your answer

what is the slope and y-intercept of this graph?

Answers

Answer:

Slope is 2

Y-intercept is 7

Step-by-step explanation:

To find the slope we take any two points from the table

and use it in the formula :

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

we take the points (0,7) and (1,9)

now we put these points in the formula and it becomes

[tex]m=\frac{9-7}{1-0}[/tex]

[tex]m=2[/tex]

so our slope which is m is 2 and now for the y-intercept we use the standard equation

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

where c is the y-intercept

we use the value of m which is 2 and use any point from the table lets take (0,7)

[tex]y=mx+c\\7=(2)(0)+c\\7=c[/tex]

our y-intercept which is c is 7

so finally our slope is 2 and y-intercept is 7

2) Kami's mom gave her $85 to go shopping. If she spent $118. How
much of her own money did Kami use?
G. $203 H. $33 1. $27 J. $210​

Answers

Answer:

33

Step-by-step explanation:

118 - 85 = 33

Answer:

$27

Step-by-step explanation: because $85 plus $27 equals $118. Hope this helps!

Which equation does the attached graph represent?

A. [tex]x=-2(y+3)^2-2[/tex]
B. [tex]x=2(y+3)^2-2[/tex]
C. [tex]y=-2(x+3)^2-2[/tex]
D. [tex]y=2(x+3)^2-2[/tex]

Answers

Hi there!

[tex]\large\boxed{B. \text{ } x = 2(y + 3)^{2} -2}[/tex]

The transformation formula of a horizontal-facing parabola is:

x = ±a(b(y - k)) + h, where the vertex is at (h, k).

Looking at the graph, we can see a vertex at (-2, -3) with a stretch of 2. The graph is also pointed towards the RIGHT, which means that the coefficient "a" must be positive. Therefore:

The only logical answer choice is B, or x = 2(y + 3)² - 2.

The formula indicates that:

* Vertex at (-2, -3)

* Stretch of 2

* Right-facing parabola

A person on a moving sidewalk travels 21 feet in 7 seconds. The moving sidewalk has a length of 180 feet. How long will it take to move from one end of the sidewalk to the other? ​

Answers

Answer:

59.40

Step-by-step explanation:

it takes .33 seconds to walk 1 foot so multiply that times 180 and you get 59.4

Please help! Only if you KNOw, I’m confused

Answers

Answer:

40

Step-by-step explanation:

1.Kknow the following information;

Remember, the sum of degrees of angles in a triangle is 180.

So say if a traingle contained;

<1, <2, <3,

Then:

<1 + <2 + <3 = 180

2. State the given, and set up an equation;

In this case, it is given that;

<1 = 115

<2 = 25

Therefore, set up the equation;

115 + 25 + <3 = 180

3. Solve the equation;

115 + 25 + <3 = 180

Simplify,

140 + <3 = 180

Inverse operations,

140 + <3 = 180

-140          -140

<3 = 40

At a recreation center, it costs $3 per hour to
rent a ping pong table and $12 per hour to rent
a bowling lane. At the same cost as renting a
bowling lane for 2 hours, for how many hours is
it possible to rent a ping pong table?

Answers

it is possible to rent 8 ping pong tables.

This is because if you are renting a bowling lane for 2 hours you would do 12+12 and that’s 24. You would then do 24/3 cause that’s the amount of the cost for 1 hour of the ping pong to rent and that would give you and answer of 8.
Hope that’s helps:)

6. The side of a square field is 125 m. Thereare two paths runninginside it along the
sides, crossing each other at thecentre.The width of thelengthwise path is 3 m
and the width of the breadthwise path is5 m. Find the areas of thetwo pathways.​

Answers

Answer:

h

Step-by-step explanation:

h^2=p^2+b^2

200=p^2+b^2

need answer asap!! will give brainiliest!!
define the term linear equation in your own words.​

Answers

an equation between two variables that gives a straight line when plotted on a graph.

Plz mark me as braniliest
Определение линейного уравнения - это алгебраическое уравнение, в котором каждый член имеет показатель степени, равный единице, и построение уравнения приводит к прямой линии. Пример линейного уравнения y = mx + b. существительное.

writing equations- point & slope
through (-5,3) slope: -3/10

Answers

Answer:

y = -.3x + 1.5

Step-by-step explanation:

See attached Screenshot using Desmos to write equation.

2x + 3 = x + 5
What is the value of x

Answers

Answer: x=2

Step-by-step explanation: Subtract

3

3

3

from both sides of the equation

2

+

3

=

+

5

2

x

+

3

=

x

+

5

2x+3=x+5

2

+

3

3

=

+

5

3

2

x

+

3

3

=

x

+

5

3

2x+3−3=x+5−3

2

Simplify

Subtract the numbers

Subtract the numbers

2

=

+

2

2

x

=

x

+

2

2x=x+2

3

Subtract

x

x

from both sides of the equation

2

=

+

2

2

x

=

x

+

2

2x=x+2

2

=

+

2

2

x

x

=

x

+

2

x

2x−x=x+2−x

4

Simplify

Combine like terms

Multiply by 1

Combine like terms

The answer is 2

2x + 3 = x + 5
2x - x = 5 - 3
x = 2

jamil buys 4 books and some pens each book costs £5.95 each pen costs £2.35 the toal costs of the books and the pendulum is £37.90 work out how many pens jamil buys

Answers

Answer:

9.68

Step-by-step explanation:

it makes sense when u tink about ot

Answer:

Jamil buys 6 pens.

Step-by-step explanation:

Jamil buys 4 books and each book costs £5.95. With 5.95+5.95+5.95+5.95 = £23.80. We have the total price for the books. The total cost of books and pens is £37.90 and each pen costs £2.35. If we keep adding £2.35 to our £23.80, we will get £37.90.                                                                                       If we add 23.80+2.35+2.35+2.35+2.35+2.35+2.35 = £37.90. We now have our total amount, and the prices of the amount of books and pens Jamil bought. Jamil bought 6 pens as it equals to £37.90.

Help plz:))) I’ll mark u brainliest
ASAP!!!

Answers

Answer:

i THINK this is correct

Step-by-step explanation:

x = 13

Answer:

I think its 13

Step-by-step explanation:

because the line above it which is 18 looks like the same length. So I would subtract 5 from 18 to get 13. because 13+5 is 18. Good luck!!

Plz help I don’t understand

Answers

Answer:

The rate of change is increasing, or positive

Step-by-step explanation:

Attached is a link of Mr.Slope, he always helps me.

the slope is 2 and the RoC and slope are the same. the RoC has units though, so the answer would be 2km/trip

What is the sum of 1/2 and 1/3

Answers

Answer:

i am wrong dont do what i am doing

Step-by-step explanation:

5/6 because 1/2 + 1/3 = 3/6 add 3+2 and that = 5/6

3 2/7−(−5/7) mixed number in simplest form.

Answers

Answer:h

Step-by-step explanation:

Convert 576 from base 10 to base 5​

Answers

Answer:

561

Step-by-step explanation:

I think... (I don´t get this question...)

Johnny has a jar of coins that has quarters and dimes. There are 57 coins in the jar tha have a total of $7.95. How many dimes are in the jar?​

Answers

Answer:

37 dimes

Step-by-step explanation:

i was experimenting. 17 quarters and 37 dimes. 17 times .25 is 4.25. 37 times .10 is 3.70. add them and it's correct.

Lara makes 150 Ice Cream.
20% for the party
1/3 for her school friends.
What is the fraction that represents how many ice creams left with her?

Answers

Answer:

70

Step-by-step explanation:

20%=30

1/3=50

30+50=80

150-80

PLEASE! ANSWER THIS! HELP! PLEASE!!!!!!!!!!!!!!

c. Expand: (tan(theta) - 1)^3​

Answers

Answer:

(tan(theta)-1)^3

= (tan(theta)-1)(tan(theta)-1)(tan(theta)-1)

= (tan^2(theta)-2tan(theta)+1)(tan(theta)-1)

= tan^3(theta)-2tan^2(theta)+tan(theta)-tan^2(theta)+2tan(theta)-1

= tan^3(theta)-3tan^2(theta)+3tan(theta)-1

Hope this helps :)

which inequality is shown in the graph

Answers

Answer:

hgyuu by 7vb j 8gv c ryuug

y=>-x-4

the line is solid and the graph is shaded above the line so the symbol is => the slope decreases by 1 so it is -x and the y-intercept is -4

Help me please! I’ll give brainliest

Answers

Answer:

The Answer is J because 1 1/2 or 1.5 times itself equals 2 1/4 or 2.25

Answer:

J

Step-by-step explanation:

It is the only answer choice in which the value increases.

Lane is making accessories for the soccer team. He uses 721.54 inches of fabric on headbands for 41 players and 2 coaches. He also uses 361.21 inches of fabric on wristbands for just the players. How much fabric was used on a headband and wristband for each player? Please answer quick pls

Answers

Answer:

16.78 inches of fabric was used for headbands for each player and 8.81 inches of fabric was used for wristbands for each player

Step-by-step explanation:

Lane is making accessories for the soccer team.

For headbands

He uses 721.54 inches of fabric on headbands for 41 players and 2 coaches.

Hence:

Let the number of inches used for headbands be represented by x

41x + 2x = 721.54

43x = 721.54

x = 721.54/43

x = 16.78 inches

Hence the number of inches used to make head band for 1 player is 16.78 inches

He also uses 361.21 inches of fabric on wristbands for just the players.

We have 41 players hence:

41 players = 361.21 inches

1 player = x

41 × x = 1 × 361.21 inches

x = 361.21 inches/41

x = 8.81 inches

8.81 inches of fabric was used for wristbands for each player.

Hence:

16.78 inches of fabric was used for headbands for each player and 8.81 inches of fabric was used for wristbands for each player

I need some help pretty please!

Answers

Answer:

 Number & Cost($)

 Feet & Yards

Step-by-step explanation:

  Number & Cost:

      (2, 38), (4, 76)            <====== pick any two point to find constant

      constant = (y₂ - y₁) / (x₂ - x₁)

                     = (76 - 38) / (4 - 2)

                     = 38 / 2

                     = 19             <====== k the constant

      y = kx

      y = 19x

      point (2, 38):    38 = 19(2)   ===>      38 = 38

      point (4, 76):    76 = 19(4)   ===>      76 = 76

      point (7, 133):  133 = 19(7)   ===>    133 = 133

      point (9, 171):   171 = 19(9)   ===>     171 = 171

  Feet & Yards:

      (27, 9), (75, 25)            <====== pick any two point to find constant

      constant = (y₂ - y₁) / (x₂ - x₁)

                     = (25 - 9) / (75 - 27)

                     = 16 / 48

                     = 1/3             <====== k the constant

      y = kx

      y = 1/3x

      point (3, 1):           1 = 1/3(3)      ===>     1 = 1

      point (12, 4):        4 = 1/3(12)    ===>     4 = 4

      point (27, 9):       9 = 1/3(27)   ===>     9 = 9

      point (75, 25):   25 = 1/3(75)   ===>   25 = 25

How much should Jordan budget monthly for an annual expenditure that coast $614.66? *
TIMED!

Answers

Answer:

he should budget about $51.22

Step-by-step explanation:

annual mean one year since there is 12 months in a year you would want to divide 12 to $614.66

Answer:

i think it's $51.22 Cause it said annual which means one year and it has 12 months so the actual price devide by 12

am not that sure tho cause the question is tricky

solve the inequality
7y+2<5y+12

Answers

Answer:

y < 5

Step by step:

Step 1: Subtract 5y from both sides.

7y+2−5y<5y+12−5y

2y+2<12

Step 2: Subtract 2 from both sides.

2y+2−2<12−2

2y<10

Step 3: Divide both sides by 2.

[tex]\frac{2y}{2}[/tex]  < [tex]\frac{10}{2}[/tex]

= y < 5

Solve the equation (3^x/2) (3^x/4) = 3^6

x =

Answers

Answer :
x=18√2 or -18√2

Step by step :
9/8x^2 =729
Divide both sides by 9/8
x^2 = 648
Take square roots
x = ±√648
x = 18√2 or -18√2

Answer:

x = √48

Step-by-step explanation:

[tex] ({3}^{ \frac{x}{2} } )( {3}^{ \frac{x}{4} }) = 3 {}^{6}[/tex]

[tex] {3}^{ \frac{x}{2} \times} {}^{ \frac{x}{4} } = 3 {}^{6} [/tex]

[tex]3 {}^{ \frac{ {x}^{2} }{8} } = 3 {}^{6} [/tex]

[tex] \frac{ {x}^{2} }{8} = 6[/tex]

[tex] {x}^{2} = 6 \times 8[/tex]

[tex] {x}^{2} = 48[/tex]

[tex]x = \sqrt{48} [/tex]

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