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sammy [17]
3 years ago
8

If the expression 5+2x was evaluated for x=4 its value would be

Mathematics
1 answer:
olga_2 [115]3 years ago
5 0

Answer:

13

Step-by-step explanation:

5 + (2 * 4)

5 + 8 = 13

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what must be true about angle 6 and angle 3 for the lines to be parallel? Name the postulate or therom
beks73 [17]
It should be supplementary angles theorem. 6 and 3 must add to 180 degrees to make a straight line.
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3 years ago
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What is the midpoint of the segment shown below? (-2, 3) (10, 3)
sergeinik [125]

Answer:

That point P(x,y)

x = (-2+10)/2 = 4

y = (3+3)/2 = 3

=> P (4,3)

5 0
4 years ago
Please helppp I’m In desperate help
liubo4ka [24]

Answer:

330

Step-by-step explanation:

Hello There!

The shown figure is a trapezoid with the following dimensions:

Height - 11m

Base 1 - 41m

Base 2 - 19m

Given this information we need to find the area

Remember the formula for the area of a trapezoid is

A=\frac{a+b}{2} h

where a and b are bases and h is the height

Because we are given all of the information needed to calculate the area all we have to do is plug in the values into the formula

So...

A=\frac{19+41}{2} 11\\19+41=60\\\frac{60}{2} =30\\30*11=330\\A=330

In conclusion the area of the figure is 330 square units

3 0
3 years ago
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After comparing response times between the audio and picture portions of the MIT test, the t-test resulted in a t-value of 2.97.
Veronika [31]

Answer:

e. reject the null hypothesis the p value is less than 0.05. therefore the difference is significant.

Step-by-step explanation:

given that after comparing response times between the audio and picture portions of the MIT test, the t-test resulted in a t-value of 2.97.

test statistic t = 2.97

Sample size n =250

Critical value of t at 95% is 1.96

We find that test statistic absolute value is greater than 1.96

So p value would be less than 0.05

This implies that null hypothesis stands in the rejected region.

So reject null hypothesis would be correct conclusion.  Sample size cannot be said to be small as more than 30 itself is a good sample size.

e. reject the null hypothesis the p value is less than 0.05. therefore the difference is significant.

5 0
3 years ago
Which expression is equivalent to (s+7) + 8 by the Associative Property of Addition? *
Maurinko [17]
An equivalent expression would be s+15


You simplify the expression.

So yea the answer is s+15
7 0
3 years ago
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