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kramer
3 years ago
13

Grace is making holiday cards. Each rectangular card has an area of 28 square inches and the length is 3 inches more than the wi

dth. Find the length and width of her cards.
Mathematics
1 answer:
melomori [17]3 years ago
3 0
Length=7
Width =4
Area = length x width
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What is the interval notation for the compound inequality? x≤−5 or x>4
Hoochie [10]

Answer:

(-\infty, -5] \cup (4,\infty)

Step-by-step explanation:

The symbol \cup is set notation for UNION--put two sets together into one set.

The first part of the interval notation describes x less than or equal to -5 -- notice the bracket symbol after -5, meaning include -5.

5 0
2 years ago
1. Which of the following describes the end behavior of the function ƒ(x) = x^4 + 3x^3 – 2x + 7?
snow_tiger [21]

Hello, when x tends to \infty the term with the highest degree will lead the behaviour.

In other words.

\displaystyle \lim_{x\rightarrow+\infty} {x^4+3x^3-2x+7}\\\\=\lim_{x\rightarrow+\infty} {x^4}\\\\=+\infty\\\\\\\displaystyle \lim_{x\rightarrow-\infty} {x^4+3x^3-2x+7}\\\\=\lim_{x\rightarrow-\infty} {x^4}\\\\=+\infty

So, the answer B is correct.

Thank you.

6 0
3 years ago
lily swims a 100-meter race. she swims the first half in 27.8 seconds. she swims the second half in 30.12 seconds. how long does
Luden [163]

we know that

1) Lily swims a 100-meter race

2) She swims the first half in 27.8 seconds

3) She swims the second half in 30.12 seconds

so

To find the total time to swim the whole race sum the time in the first half plus the time in second half

(27.8+30.12)=57.92\ seconds

therefore

<u>the answer is</u>

57.92\ seconds

3 0
3 years ago
Read 2 more answers
At 8:00 a.m. the temperature outside in Juneau, Alaska was -16.5 . By noon the temperature had increased by 15.25 . What is the
adelina 88 [10]

It would be -1.25 degrees at noon.

3 0
3 years ago
|2x-5|=9 please awnser i need this for math
7nadin3 [17]

Answer:

7

Step-by-step explanation

2x = 14

divide by 2

8 0
1 year ago
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