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Tpy6a [65]
3 years ago
13

At a store, toothbrushes cost x dollars and

Mathematics
1 answer:
maksim [4K]3 years ago
5 0

Answer:

Step-by-step explanation:

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The first incorrect is the second step so choice B. ,bc. the exponents need assuming not multiply 

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3 years ago
What is the solution to the inequality a - 1 > 11
Vanyuwa [196]
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3 years ago
Help with Math PLZ (Questions in screenshot)
-Dominant- [34]

1.) Let's say that the circle on the graph below represents x. The arrow is pointing to all the numbers greater than x, which happens to be on -2. If it points right, this means that x can equal to any number greater than -2. So your answer is x > -2.

2.) For inequalities such as these, you can simplify just like what you do for normal equations. Let's isolate x.

x - 7 > 10

--> x > 10 + 7

---> x > 17

3.) 3x \leq 21

--> \frac{3x}{3} \leq  \frac{21}{3}

---> x \leq 7

4.) 5a - 2 < 18

--> 5a < 18 + 2

---> 5a < 20

----> \frac{5a}{5} < \frac{20}{5}

-----> a < 4

5.) 2t + 8 \geq -4(t + 1)

--> 2t + 8 \geq -4t - 4

---> 2t + 4t \geq -8 - 4

----> 6t \geq -12

-----> t \geq -2

7 0
4 years ago
Give a correct interpretation of a 99% confidence level of 0.328 &lt; μ &lt; 0.486.
stepladder [879]

Answer:

D

Step-by-step explanation:

Lower bound of the population mean is 0.328

Upper bound of the population mean is 0.486

Confidence level is 99%

Therefore, the correct interpolation of the confidence interval is that we are 99% confident that the true value of the population mean is between 0.328 and 0.486

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4 years ago
Can someone please tell me the answers for this question
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3 years ago
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