Find a so that the point (-1,3) is on the graph of f(x) = ax^2 + 2

Answer:

x=18

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

Answer:

5 : 3

Step-by-step explanation:

Given that :

SAM:

Walks 5 laps in 30 minutes

SAM'S BROTHER:

walks 3 laps in 30 minutes

Ratio of the number of laps Sam walks to that which is brother walks :

In 30 minutes the ratio of the number of laps walked by Sam to that of his brother is :

Sam's laps : brother's laps

5 : 3

Answer:

D

Step-by-step explanation:

The total amount of money earned by Kerri is $135.

Given that, Kerri earns $15 an hour tutoring.

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

Let the total amount of money earned by Kerri be x.

Now, total number of hours = 2+3+4=9 hours

Total money = Number of hours worked × Amount earned in an hour

x=9 × 15

⇒ x = 135

Therefore, the total amount of money earned by Kerri is $135.

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Answer:

11.1 feet

Step-by-step explanation:

because the formula for area of a square is A=L^2

so in this situation you would square root the 124 square feet, since all 4 sides are equal lenths

Answer:

The answer is C, 11.1 feet.

Step-by-step explanation:

To figure this out, you would estimate the square root of 124, since a square has sides of equal length. Your estimate would be closest to 11.1. I hope my answer helps, and if it does not, please leave a comment below, so that I can fix it.

Length of a wire = 40 cm.

Breadth of the rectangle formed = 8 cm.

length and area of rectangle.

Length of a wire = 40 cm.

A rectangle is made from this wire.

That means,

Perimeter of the rectangle formed = length of the wire.

Also,

Breadth of the rectangle formed = 8 cm.

We know that,

Perimeter of a rectangle = 2(length + breadth).

Let the length of the rectangle be x cm.

Hence,

→ 2(x + 8) = 40

→ 2x + 16 = 40

→ 2x = 40 - 16

→ 2x = 24

→ x = 24/2

→ x = 12

Hence,

Length of the rectangle formed = x = 12 cm.

Now,

We know,

Area of a rectangle =length * breadth

→ Area of the rectangle = (12) * (8)

→ Area of the rectangle = 96 cm²

Therefore, the area of the rectangle formed is 96 cm².

I hope it will help you.

Regards.

Answer:

I think is a apple and stuff

Step-by-step explanation:

carrot

Answer:

The indifference point is 5 months.

Step-by-step explanation:

First, we need to structure the total cost formula for each fitness center:

Community center= 60x

Work center= 100 + 40x

x= number of months

Now, we equal the formulas and isolate x:

60x = 100 + 40x

20x = 100

x= 5

The indifference point is 5 months.

Answer: the answer is 5 or d

Step-by-step explanation:

[tex]5x + 15 \leqslant - 10 \\ 5x \leqslant - 10 - 15 \\ 5x \leqslant - 25 \\ x \leqslant - 25 \div 5 \\ x \leqslant - 5[/tex]

Answer:

21

Step-by-step explanation:

Answer: LCM(3,21) = 21

Step-by-step explanation:  Least common multiple or lowest common denominator can be calculated in two ways, with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.

Answer:

F can be at 19 or -5

Step-by-step explanation:

If F is on positive number line, F-E=12

F=12+7=19

If F is on negative number line, E-F=12

-F=12-7=5, F=-5

Answer:

28

Step-by-step explanation:

In the morning, the temperature was 20 degrees

By 6pm, we have a drop to 8 degrees below 0, that will be -8

So the temperature difference will be;

20-(-8)

= 20 + 8 = 28

Answer:

1. The slope is -5x and the y-intercept is 4

2. The slope is 0 and the y-intercept is 4

3. The slope is -3x and the y-intercept is 2

Answer:

Inconsistent

Step-by-step explanation:

A system of linear equations that has at least one solution is called consistent, whereas a system of linear equations that has no solutions is called inconsistent.

A system of linear equations that has no solution is a set of inconsistent equations.

The correct answer is an option (B)

"It is a mathematical statement which consists of equal symbol between two algebraic expressions."

"It is a set of equations for which we find a common solution."

"A system of equations is consistent if there is at least one set of values that satisfies each equation in the system."

"A system of equations is inconsistent if there is no solution to the given system of equations."

From the definition, we can see that the system of equations is inconsistent if a system of equations has no solution.

Therefore, A system of linear equations that has no solution is a set of inconsistent equations.

The correct answer is an option (B)

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Answer: 7.867 x 10^8

Step-by-step explanation:move the decimal forward and how many times you moved it is your exponent

Answer:

You need to make $21 a day

Step-by-step explanation:

12d=250: you want $250 total, and you charge $12 for every delivery (d)

Divide 250 by 12, which is 20.83333... so thats 21

Answer:

square root of (1-x^2) + C

Step-by-step explanation:

Use integration by parts...

Answer:

i must say product means we have to multiple 2×4×6 that give 48

Step-by-step explanation:

happy Halloween

Answer:

No, the sum of the areas of two smaller squares is not equal to the area of a larger square if the lengths of sides of the squares are 8 feet, 5 feet and 3 feet.

Step-by-step explanation:

WE know that the area of a square is A = s² where s = length of side of the square. Now, since we have squares of varying sides of 8 feet, 5 feet and 3 feet respectively, we want to determine if the areas of the two smaller squares equals that of the larger square. Let A = area of 8 feet side square, A' =  area of 5 feet side square and A" =  area of 3 feet side square. We want to show if A = A' + A".

Now A = (8 ft)² = 64 ft²

A' = (5 ft)² = 25 ft² and

A" = (3 ft)² = 9 ft²

A' + A" = 25 ft² + 9 ft² = 36 ft²

Since L.H.S = 64 ft²and R.H.S = 36 ft²

So,  64 ft² ≠  36 ft²

L.H.S ≠ R.H.S

So, the sum of the areas of two smaller squares is not equal to the area of a larger square if the lengths of sides of the squares are 8 feet, 5 feet and 3 feet.

Answer:

larger meats

Step-by-step explanation:

depends how long and howuch they weigh

Answer: Change in altitude = (50 x 5) feet

The total change in altitude for all 5 kites. = 250 feet

Step-by-step explanation:

Given : Rate of descent = 50 feet per second  (speed)

Time = 5 seconds

Since, distance = speed x time

Change in altitude = Rate of descent x Time

Change in altitude = 50 x 5 feet  [required equation]

= 250 feet

Hence, the total change in altitude for all 5 kites. = 250 feet

Answer:

B

Step-by-step explanation:

4x+10+6x-10+2x=180°

4x+6x+2x=180°+10-10

12x/12=180°12

x=15° check :

4x+10+6x-10+2x=180° then x=15°

4*15+10+6*15-10+2*15=180°

60+10+90-10+30=180°

180°=180°

The equation representing the value of x is 12x + 20 = 180

A triangle is a polygon with three edges and three vertices.

Given that, a triangle having interiors angles,  2x, 4x + 10 and 6x - 10

We know that, the sum of the interior angles of the triangle = 180°

Therefore,

2x + 4x + 10 + 6x - 10 = 180°

12x + 20 = 180°

Hence, the equation representing the value of x is 12x + 20 = 180

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Answer:

The one on the left is your anwsers

Step-by-step explanation:

Answer:

Turn one of the plus signs into a 4, making it 545+5=550

Step-by-step explanation:

Answer:y=28

Step-by-step explanation:

Answer:

Yes Your Work Is correct.

James King

Hope This Helped

Have A Great Day

Answer:

it looks good to me!?

and your hand writing is amazing

Step-by-step explanation:

Answer: meters per second squared

Step-by-step explanation: Acceleration is measured in meters per second squared, m/s 2. When you multiply a kilogram (mass unit) times a meter per second squared (acceleration unit) you get a kilogram-meter per second squared.

Answer:56i

Step-by-step explanation:the answer is 56i

Answer:

12x+-27

Step-by-step explanation:

3 times 4x is 12x then -9 times 3 is -27, and 12x-27 is the same as 12x+-27.

Answer:

fhsvbhbbsbsjkbjk

Step-by-step explanation:

i cant see its blurry