Ask question

Ask question

All categories

3 years ago

13

Shawana reduced the size of a rectangle to a height of 2 in. What is the new width of it was originally 24 in. wide and 12 in. t

all?

1 answer:

Bumek [7]3 years ago

5 0

Answer: 4 in. Wide

Step-by-step explanation:

You might be interested in

pls help will give brainliest Rena used the steps below to evaluate the expression (StartFraction (x Superscript negative 3 Base

kaheart [24]

Answer:

First "order of operations" mistake: step 2

First arithmetic mistake: step 4

Step-by-step explanation:

As we understand Rena's work, she wants to simplify ...

$\left(\dfrac{x^{-3}y^{-2}}{2x^4y^{-4}}\right)^{-3}$

for x = -1 and y = 2.

Her work seems to be ...

<u>Step 1</u>

$\text{Substitute $x=-1$ and $y=2$ into the expression}\\\\\left(\dfrac{(-1)^{-3}2^{-2}}{2(-1)^42^{-4}}\right)^{-3}\qquad\text{no error}$

<u>Step 2</u>

$\text{Simplify the parentheses}\\\\\left(\dfrac{2^4}{2(-1)^4(-1)^32^2}\right)^{-3}=\left(\dfrac{2^2}{2(-1)^7}\right)^{-3}\qquad\text{order of operations error}$

<u>Step 3</u>

$\text{Evaluate the power to a power}\\\\\dfrac{2^{-6}}{2^{-3}(-1)^{21}}\qquad\text{no error}$

<u>Step 4</u>

$\text{Use reciprocals and find the value}\\\\\dfrac{1}{2^32^6(-1)^{21}}=\dfrac{1}{8\cdot 64\cdot (-1)}=\dfrac{-1}{512}\qquad\text{error: $2^3$ is used instead of $2^{-3}$}$

_____

So, the first arithmetic error is in Step 4. However, the order of operations requires exponents be evaluated first. Doing that makes step 2 look like ...

$\left(\dfrac{-\dfrac{1}{4}}{2(1)\dfrac{1}{16}}\right)^{-3}=(-2)^{-3}\qquad\text{proper Step 2}$

__

We expect your answer is supposed to be Step 4.

7 0

3 years ago

Simplify. (3x^2 + 3) - (6x + 4) + (3x^2 - 5x)

r-ruslan [8.4K]

Answer:

6x^2 -11x -1

Step-by-step explanation:

(3x^2 + 3) - (6x + 4) + (3x^2 - 5x)

Distribute the minus sign

(3x^2 + 3) - 6x - 4) + (3x^2 - 5x)

Combine like terms

3x^2 + 3x^2 - 6x - 5x -4+3

6x^2 -11x -1

3 0

3 years ago

FIND THE DIFFerence.<br> 78,000 - 9,743 =

vitfil [10]

Answer:

68257

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

6.025 (25 is repeating) as a mixed number

Mashutka [201]

Answer:

6.025 as a mixed number is 6 1/40

3 0

3 years ago

Read 2 more answers

What is the t-intercept of the line shown below?

larisa86 [58]

Answer:

the y intercept is 2

Step-by-step explanation:

its when the slope passes through the y-axis

6 0

3 years ago