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Maurinko [17]
3 years ago
8

Express the set x > − 1 x>-1 using interval notation

Mathematics
1 answer:
Ad libitum [116K]3 years ago
6 0

x >  - 1 \\ ( - 1. \infty )
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What is the value of x in the diagram?
cestrela7 [59]

Answer:

x = 5

Step-by-step explanation:

x² + (2x+2)² = (2x+3)²

x² + 4x² + 8x + 4 = 4x² + 12x + 9

x² - 4x - 5 = 0

(x - 5)(x + 1) = 0

x = -1  This can be discounted as the answer because you cannot have a negative length

answer: x = 5

5 0
3 years ago
When given angle measures of 25°, 65°, and
Blababa [14]

You first add all the angles together.

25 + 65 + 90 = 180°

The total angle measurement of a triangle is 180°. Therefore, it is possible to only make one triangle.

6 0
3 years ago
2+0=2 What property is illustrated? A. associative property of addition B. commutative property of addition C. identity property
valkas [14]
C. identity property of addition. hope it helps
7 0
3 years ago
Read 2 more answers
Results of a poll stated that 40% of U.S. adults identify as Republican, and you want to test the claim at alpha = 0.05. What le
Nookie1986 [14]

Answer:

The confidence level is 95% or 0.95.

Step-by-step explanation:

Consider the provided information.

Results of a poll stated that 40% of U.S.

If you want to test the claim at alpha = 0.05.

As we know:

Confidence level = 1 - significance level (\alpha)

Confidence level = 1 - 0.05

Confidence level  = 0.95

Therefore, the confidence level is 95% or 0.95.

4 0
3 years ago
The sales tax on a 15,000 car is 540. at this rate what is the tax on a 32,000 car
maria [59]
Note : Since unit of currency is not defined, I'll be using units.

Sales tax on a 15000 units car = 540 units
540 = 15000 × tax% / 100
=> 540 = 15000 × tax% / 100
=> 540/15000 = tax% / 100
=> tax% = (540/15000) × 100
=> tax% = 540/140
=> tax% = 3.6

now,
sales tax on a 32000 units car = 32000 × tax%/100
= 32000 × 3.6/100
= 320 × 3.6
= 1152 units
therefore sales tax on a 32000 units car = 1152 units
4 0
3 years ago
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