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AleksAgata [21]
3 years ago
15

I need the answer plz

Mathematics
2 answers:
Roman55 [17]3 years ago
4 0
A numerical expression is a mathematical phrase involving only numbers and one or more operational symbols. <span>An </span>algebraic expression<span> is a mathematical phrase that can contain ordinary numbers, variables  and operators.</span>
snow_tiger [21]3 years ago
3 0
Algebraic equations include "variable" which are unknowns that you have to solve the equation to find out their value
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Who needs help<br> because im here tp help im 19
Aleonysh [2.5K]

Answer:

i need help

Step-by-step explanation:

I have to write a fictional narrative. Do you have any story ideas?

5 0
3 years ago
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What is 9a - 3 (2a - 4) = 15
faltersainse [42]
<span>9a + -3(2a + -4) = 15 Reorder the terms: 9a + -3(-4 + 2a) = 15 9a + (-4 * -3 + 2a * -3) = 15 9a + (12 + -6a) = 15 Reorder the terms: 12 + 9a + -6a = 15 Combine like terms: 9a + -6a = 3a 12 + 3a = 15 Solving 12 + 3a = 15 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-12' to each side of the equation. 12 + -12 + 3a = 15 + -12 Combine like terms: 12 + -12 = 0 0 + 3a = 15 + -12 3a = 15 + -12 Combine like terms: 15 + -12 = 3 3a = 3 Divide each side by '3'. a = 1 Simplifying a = 1</span>
5 0
3 years ago
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When a series of events takes place, each with a fixed number of possible values, the total number of possible outcomes is the _
zalisa [80]

When a series of events takes place, each with a fixed number of possible values, the total number of possible outcomes is the product of the number of values of each event. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

6 0
3 years ago
nA car dealer who sells only late-model luxury cars recently hired a new salesperson and believes that this salesperson is selli
7nadin3 [17]

Answer:

The value of an appropriate test statistic for the car dealer to use is -4.

Step-by-step explanation:

The null hypothesis is:

H_{0} = 4600

The alternate hypotesis is:

H_{1} < 4600

The test statistic is:

t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

In which X is the sample mean, \mu is the value tested at the null hypothesis, \sigma is the standard deviation and n is the size of the sample.

In this problem:

X = 4100, \mu = 4600, \sigma = 500, n = 16

Then

t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

t = \frac{4100 - 4600}{\frac{500}{\sqrt{16}}}

t = -4

The value of an appropriate test statistic for the car dealer to use is -4.

8 0
3 years ago
. What is the solution set of the equation below?<br> 2x - 3 = 11
Ivanshal [37]

Answer:

x would be 7

Step-by-step explanation:

2x7 = 14

14-3=11!

Hope I could help!

Brainlist??

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3 years ago
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