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-Dominant- [34]
3 years ago
14

I need help with this. i will add you as a brillance if you get this right

Mathematics
1 answer:
Crank3 years ago
7 0

Answer:

i think its b and c

Step-by-step explanation:

8x+7+4x and 12x+7 are the same just not simplified

You might be interested in
Help please and thank you: The graph of f x = x2 − 2x − 3 is shown. Which of these describes the effect changing f x to f −2x wi
Lemur [1.5K]

Answer:

Option (C).

Step-by-step explanation:

Graphed function is,

f(x) = x² - 2x - 3

     = x² - 2x + 1 - 1 - 3

     = (x² - 2x + 1) - 4

     = (x - 1)² - 4

f(-2x) = (-2x)² - 2(-2x) - 3

        = 4x² + 4x - 3

        = 4(x² + x) - 3

        = 4[x² + 2(0.5)x + (0.5)²- (0.5)²] -3

        = 4(x + 0.5)² - 1 - 3

        = 4(x + 0.5)² - 4

        = 4[(x - 1) + 1.5]² - 4

Therefore, parent function 'f' will be a horizontal shrink by 4 units and  shifted 1.5 units to the left.

Option (C) will be the answer.

5 0
3 years ago
Is the area of this shape approximately 86.2 cm? If not, give the correct area.
lisov135 [29]

Answer: True

Step-by-step explanation:

The area of a trapezoid is ((b1+b2)/2)*h.

Because this trapezoid is an isosceles trapezoid, we can find the base of the right triangles: 4.  Then, using Pythagorean theorem we can get the height of the trapezoid, the square root of 33, or about 5.75.  Then plugging the values into the formula, we get 86.25, which is close to 86.2.

Hope it helps <3

6 0
3 years ago
At the grocery store Ayla buys1 1/3 pounds of ground turkey .Tasha buys 2 times as much ground turkey . How much ground turkey d
viktelen [127]

Answer:

2 2/3 lbs

Step-by-step explanation:

Convert Alya's mixed number to an improper fraction

   3*1+1 = 4/3

multiply 4/3 times 2/1

    4*2 = 8

    3*1 = 3

8/3 - convert back to mixed number

    8/3 = 2 2/3

4 0
3 years ago
Sally climbed 575 steps in 11.5 minutes. How many steps did she average per minute?
irga5000 [103]

Answer:

50

Step-by-step explanation:

575/11.5=50

7 0
3 years ago
Read 2 more answers
Shannon is selling boxes cookies and candy for a fundraiser. She's sold each box of cookies for $5.25. She also sold one one box
defon

Answer:

The minimum boxes of cookies is 39

Step-by-step explanation:

Let

x ----> the number of boxes of cookies sold

y ----> the number of boxes of candies sold

we know that

The word "at least" means "greater than or equal to"

so

The inequality that represent this problem is

5.25x+8.75y\geq 200

The solution is the shaded area above the solid line   5.25x+8.75y=200

using a graphing tool

The solution is the shaded area -----> see the attached figure

Find out the minimum boxes of cookies needed to sell to reach the goal

assuming only cookies are sold

For y=0

5.25x+8.75(0)\geq 200

5.25x\geq 200

solve for x

x\geq 38.1

Round up

therefore

The minimum boxes of cookies is 39

5 0
3 years ago
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