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balu736 [363]
3 years ago
9

What is the volition of -3 (2x + 5)=-3? 5

Mathematics
2 answers:
kumpel [21]3 years ago
7 0
The answer to this question is -2
Artyom0805 [142]3 years ago
4 0

Answer:

x = - 2

Step-by-step explanation:

Given

- 3(2x + 5) = - 3 ( divide both sides by - 3 )

2x + 5 = 1 ( subtract 5 from both sides )

2x = - 4 ( divide both sides by 2 )

x = - 2

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Which equation can be used to find the solution of (1/3)^d−5=81 ?
horsena [70]

Let's solve your equation step-by-step.

Step 1: Add 5 to both sides.

\frac{1}{3}^{2} -5+5=81+5

\frac{1}{3}^d =86

Step 2: Solve Exponent to get.

d = −4.054522   or -4.05  hope this helps


4 0
3 years ago
Mia has a piece of ribbon that is 30.5 yards long. The length is just enough ribbon to make 5 bows that are the same size. How l
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30.5/5= 6.1 yards per ribbon 
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The solution set for 6a2 − a − 5 = 0 is?
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(a2 + 5) • (a2 + 1) is your answer to this question.
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Olivia is thinking of a number. She says “my number is odd is is a factor of 30 and a multiple of 3” there are two possible numb
vovikov84 [41]

Answer:

3 and 15

Step-by-step explanation:

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Of these, the odd ones are:

1, 3, 5, 15

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In a large population of adults, the mean IQ is 112 with a standard deviation of 20. Suppose 200 adults are randomly selected fo
Snezhnost [94]

Answer:

(c)approximately Normal, mean 112, standard deviation 1.414.

Step-by-step explanation:

To solve this problem, we have to understand the Central Limit Theorem

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a random variable X, with mean \mu and standard deviation \sigma, a large sample size can be approximated to a normal distribution with mean \mu and standard deviation \frac{\sigma}{\sqrt{n}}.

In this problem, we have that:

\mu = 112, \sigma = 20, n = 200

Using the Central Limit Theorem

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(c)approximately Normal, mean 112, standard deviation 1.414.

4 0
3 years ago
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