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3 years ago

What is 2 3/4+(−1 1/8)?

Mathematics

1 answer:

Ilya [14]3 years ago

8 0

Answer:

$1\frac{3}{8}$

Step-by-step explanation:

Either you typed the question wrong, or the answers wrong. I double-checked with a calculator. The answer I got isn't one of the options :/

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Solve the quadratic function by completing the square. What are the missing pieces in the steps?

Anna [14]

Answer:

Step-by-step explanation:

-32 = 2(x² + 10x)

Complete the square

coefficient of the x term: 10

divide coefficient in half: 5

square it: 5²

use 5² to complete the square and keep the equation balanced:

-32+2·5² = 2(x² + 10x + 5²)

18 =2(x+5)²

9 = (x+5)²

x+5 = ±√9 = ±3

x = ±3 - 5 = -2, -8

7 0

3 years ago

Stacey buys 6 pounds of chicken for $39. How much will she pay for 11 more pounds of chicken.

yaroslaw [1]

So she pays 6 lb of chicken for $39 then $39/6 = $6.30 is the price per pound.

11lb + 6lb = 17lb total of chicken then multiply it by the price per pound

17($6.50) = $110.50

8 0

4 years ago

3x-8=10 Answer it correctly

shepuryov [24]

Answer:

x=6

Step-by-step explanation:

3x-8=10

+8 +8

3x=18

x=18/3

x=6

3 0

4 years ago

Read 2 more answers

Marking brainliest Please help!

yan [13]

Think about the way the cupcakes were set up...

Total cost + (cost per cupcake/cup of lemonade x # of cupcakes/cups of lemonade sold)

Revenue would be how much they’re charging for each cupcake/cup of lemonade x # sold

7 0

3 years ago

Consider line segment AB whose endpoints are (1, 4) and (4, 8). If this segment is dilated by a scale factor of 4 centered at th

gulaghasi [49]

Answer:

The length of the new segments A'B' is 20 units ⇒ answer C

Step-by-step explanation:

* Lets revise the dilation

- A dilation is a transformation that changes the size of a figure.

- It can become larger or smaller, but the shape of the figure does

not change.

- The scale factor, measures how much larger or smaller the image

will be

- If the scale factor greater than 1, then the image will be larger

- If the scale factor between 0 and 1, then the image will be smaller

* Lets solve the problem

- line segment AB whose endpoints are (1, 4) and (4, 8) is dilated by

a scale factor of 4 and centered at the origin

∵ The scale factor is 4 and it is greater than 1

- The length of the image of line segment AB will enlarged by the

scale factor 4

∴ A'B' = 4 AB

* Lets find the length of AB by using the rule of the distance

∵ $d=\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}$

∵ A = $(x_{1},y_{1})$ and B = $(x_{2},y_{2})$

∵ A = (1 , 4) and B = (4 , 8)

∴ $(x_{1},y_{1})=(1 , 4)$ and $(x_{2},y_{2})=(4 , 8)$

∵ AB = $\sqrt{(4-1)^{2}+(8-4)^{2}}=5$

∴ AB = 5 units

∵ A'B' = 4 AB

∴ A'B' = 4 × 5 = 20

∴ The length of the new segments A'B' is 20 units

8 0

3 years ago