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Neporo4naja [7]
2 years ago
13

Which of these products is positive? Select all that apply. -0.2 # (12.5) - 1 12 # ( -61 2) 3.2 # ( - 1 900) -31 2 # 0 -4.7

Mathematics
1 answer:
Aleonysh [2.5K]2 years ago
7 0

I am not sure if you have any questions or need any further information on this

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Can you help me with question please thank you
user100 [1]
43 degrees because they are congruent so angle p is equal to angle k
5 0
3 years ago
Which equation is related to x+23=9x+23=9?. a. x−9=23x-9=23 b.x=923x=923 c.x+9=23x+9=23 d. x=813
atroni [7]
I think it's a  although I can't really tell.
7 0
3 years ago
Read 2 more answers
Expand x(x – 4)<br> Please answer!!! I will mark you as brainliest if you answer and its right!!
Mekhanik [1.2K]

The expression x( x - 4 ) when expanded is x² - 4x

An expression, often known as a mathematical expression, is a finite collection of symbols that are well-formed in accordance with context-dependent principles.

When a bracket is expanded, each term is multiplied by the expression outside of the bracket.

The distributive property states that multiplying the sum of two or more addends by a number yields the same outcome as multiplying each addend separately by the number and combining the resulting products.

Consider the expression,

x( x - 4 )

Let us assume y = x( x - 4 )

Using the distributive property, a( b + c ) = ab + ac

y = x( x - 4 )

y = x · x - x · 4

y = x² - 4x

Therefore, x( x - 4 ) = x² - 4x

Therefore, the expression when expanded is x² - 4x.

Learn more about expression here:

brainly.com/question/1859113

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6 0
1 year ago
The sum of two numbers is 34. The difference of the two numbers is 14. Find the two numbers.
harkovskaia [24]

Answer:24 and 10

Step-by-step explanation:24-10=34 24-10=14

6 0
3 years ago
Read 2 more answers
An educational psychologist wishes to know the mean number of words a third grader can read per minute. She wants to make an est
amid [387]

Answer:

(38.1,88.6)

Step-by-step explanation:

We are given the following in the question:

Sample mean, \bar{x} = 38.3

Sample size, n = 695

Alpha, α = 0.05

Population standard deviation, σ = 3.6

95% Confidence interval:

\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}

Putting the values, we get,

z_{critical}\text{ at}~\alpha_{0.05} = 1.96

38.3 \pm 1.96(\frac{3.6}{\sqrt{695}} ) = 38.3 \pm 0.267 = (38.033,38.567) \approx (38.1,88.6)

8 0
3 years ago
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