If f(x)=-x^2– 7x – 22, find f(-5).

A. -82
B. -32
C. -12
D. 12
E. 38

Answer:

X = 6

y = 0

Step-by-step explanation:

use elimination method. Multiply (x -4y = 6) by -2.

2x + 2y = 12

-2x + 8y = -12

add them together

10y = 0

y = 0

plug in for y

x - 4(0) = 6

x = 6

Answer:

A bakery made 140 buns. A restaurant bought 80 of the buns. The remaining buns were put into bags of 4 buns each. How many bags of buns

are there?

Answer:

30, 30 bags of buns your welcome

Answer:

40%

Step-by-step explanation:

Ignore the zeros, then think about the 15 ‘s multiplication table. Once you do, you will find that 90 is 15 times 6, which is 60%. And 100-60 is obviously 40. Hope this helps.

The percentage that was reduced from the original price is 40 %

What is Percentage?

A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, %

Given data ,

The original price of the skateboard = $ 150

The reduced price of the skateboard = $ 90

The difference between the original price and reduced price =
Original price of the skateboard - Reduced price of the skateboard

The difference between the original price and reduced price = 150 - 90

                                                                                                      = $ 60

Let the percentage decrease be A

Now the equation will be

Original price of the skateboard - A % ( Original price of the skateboard ) =
Reduced price of the skateboard

So ,

150 - A/100 ( 150 ) = 90

Adding A/100 ( 150 ) on both sides , we get

A/100 ( 150 ) + 90 = 150

Subtracting 90 on both sides , we get

A/100 ( 150 ) = 60

Multiply by 100 on both sides , we get

150A = 6000

Divide by 150 on both sides , we get

A = 40 %

Hence , the percentage at which the price of the skateboard reduced is 40%

To learn more about percentage click :

https://brainly.com/question/12861068

#SPJ6

Answer:

The solution of the given equation is not possible. Because different variables never multiply or divide

Answer: The third one

Step-by-step explanation: open circle, with crocodile sign pointing to right which means u have to go left! Have a nice day!!

Answer:

C) a number line going from negative 6.5 to negative 5.8. An open circle is at negative 6.1. Everything to the left of the circle is shaded.

Step-by-step explanation:

Open circle means < or >

Closed circle means < or >

So has to be an open circle since the sign is <. it also says w < -6.1

so w has to be less than -6.1. So less than -6.1 would be -6.2, -6.3, -6.4etc.

Answer:

b

Step-by-step explanation:

Answer:

Based on that I would say b. By looking at the graph you can see the way the lines go across the graph.

Step-by-step explanation:

B.

Answer:

100

Step-by-step explanation:

There are 12 5s.

12*5= 60

There are 4 10s.

10*4 = 40

60 + 40 = 100

Answer:

ANS 100

Step-by-step explanation:

THERE ARE  12 TIME 5 AND 4 TIME 10 SO THE ANSWER IS 100

Answer:

Concept: Higher Level Mathematics

Answer:

B

Step-by-step explanation:

Pretty much what the solution says. Increasing from -∞ to 0, then 2 to ∞. Decreasing between 0 and 2.

Hope this helps!

Answer:

x=7

Step-by-step explanation:

6x6=36

6x7=42

Sides of the right triangle are 6x bigger

9514 1404 393

Answer:

  C  {2, 4, 9, 16}

Step-by-step explanation:

The domain is the list of numbers at the tails of the arrows.

The range is the list of numbers at the heads of the arrows: {2, 4, 9, 16}.

Answer:

A and B are true

Step-by-step explanation:

The minimum is the turning point on the graph and occurs at (1, - 2)

The x- intercepts are where the graph crosses the x- axis , that is at

x = - 1 and x = 3 or in coordinate form (- 1, 0 ) and (3, 0 )

The equation of the axis of symmetry is a vertical line passing through (1, - 2)

with equation x = 1

The true statements are A and B

Answer:

⇨ A and B choice

Step-by-step explanation:

⟺ Consider all choices.

⥱ Choice A is correct because It's upward Parabola ( a > 0) where there is only the minimum point/value. The minimum point is at (1,-2). The vertex for upward parabola can be called the minimum point.

⥱ Choice B is correct because the Parabola intercepts x-axis at (-1,0) and (3,0) from the graph.

⥱ Choice C is wrong because the Axis of Symmetry is supposed to be x-term/value for the Parabola. If it is the y-value/term then it would be Side Parabola.

⥱ Choice D is wrong because an upward Parabola doesn't have the maximum point. The only Parabola with maximum point is downward Parabola ( a < 0)

Answer:

7 thousandths

Step-by-step explanation:

ez dub

Answer:

Goran's gas tank is 1/6 full. After he buys 14 gallons of gas, it is 3/4 full. How many gallons can Goran's tank hold?"

Let x = gallons to fill the tank

14

multiply by 12

12*3%2F4x = 12*1%2F6x + 12(14)

3(3x) = 2x + 168

9x - 2x = 168

7x = 168

x = 168/7

x = 24 gallons

:

see if that is true

1%2F6*24 + 14 = 18 gallons which is 18/24 = 3/4 of the tank

Answer:

An angle is by the right angle paq is to the left

Step-by-step explanation:

hope this helped

Answer:

y=2x-4

Step-by-step explanation:

slope=mx+b

8x-4y=16

-4y=-8x+16

-4y/-4=y

(-8x+16)/-4=2x-4

y=2x-4

Hope this helps! :)

Answer:

45 ft i think im not sure sorry if im wrong

Step-by-step explanation:

Step-by-step explanation:

question 15

For y to be parallel to z the sum of given angles must be equal to 180°

3x + 7 + 10x - 22 = 180° add like terms

13x - 15 = 180 add 15 to both sides

13x = 195 divide both sides by 13

x = 15

question 16

If y is parallel to z then the given angles are alternate exterior and has same measurement

11x - 3 = 4x + 39

11x - 4x = 39 + 3

7x = 42 divide both sides by 7

x = 6

Answer:

56 degrees

Step-by-step explanation:

Coz they're corresponding angles

Answer: k ≥ 4

Step-by-step explanation:

7 + 4k ≥ 23

subtract 7 on both sides

4k ≥ 16

divide by 4 on both sides

k ≥ 4

the graph:

Answer:

84

Step-by-step explanation:

Let the number be x.

As the number is multiple of 3 and 4, so the number must be a multiple of the lowest common factor (LCM) of 3 and 4.

LCM(3,4)=12

So, the number, x, is a multiple of 12.

All the numbers between 30 and 99, which are multiples of 12 are 36, 48, 60, 72, 84, 96.

When x is divided by 5, the remainder is 4, so the unit digit of the number is 4.

Now, the number between 30 and 99, which is multiple of 12 and having the unit digit 4 is 84.

Hence, the required number is 84.

Answer:

85

Step-by-step explanation:

He walked 25 already. So you have x=25. He walks 5 km during each trip. There are 12 trips. 5 times 12 is 60. x=25+60. So, 25 plus 60 is 85.

Answer:

83.33 milligrams

Step-by-step explanation:

The equation, [tex] 18x = 1500 [/tex] represents the total dosage of antibiotics to be given to the patient in relation to the hours.

Thus, the each dosage = x.

Let's solve for x

[tex] 18x = 1500 [/tex]

Divide both sides by 18

[tex] \frac{18x}{18} = \frac{1500}{18} [/tex]

[tex] x = 83.33 milligrams [/tex] (nearest hundredth)

Answer:

$51.20

Step-by-step explanation:

36% of 80 is 28.8

80 - 28.8 = 51.2

Formatted properly, the answer is $51.20

Answer:

Step-by-step explanation:

The answer is $51.20!

Hope this helps!