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ipn [44]
3 years ago
7

Dave tried to evaluate 55 – 15 + 20 step-by-step.

Mathematics
1 answer:
Softa [21]3 years ago
3 0

Answer:

Step 2

Step-by-step explanation:

In step 2 the expression was 40+20 which would have been 60 but he might have thought addition sign was subtraction so he did 40-20 which is 20 so he is wrong made mistake in step 2

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The graph below is a portion of a complete graph. Which graph below is the complete graph assuming it is an even function?
Ierofanga [76]

Answer:

Option b

Step-by-step explanation:

A function is even if and only if f(-x) = f(x).

This means that there is the same value of y for x_0 and for -x_0

Where x_0 is any point belonging to the function .

Therefore you must select a graph whose ordered pairs are of the form (x_0, y_0) and (-x_0, y_0)

Therefore the correct answer is option b. Assume that each box in the graph equals 1 unit. Then, for x = 2 y = -3 and for x = -2 y = -3. Then it is shown that the function is even.

8 0
3 years ago
What is the mode of the following set of data? 34, 23, 12, 11, 11, 25, 25, 26, 25, 27, 30
Olin [163]
1 - B

Mode - The mode the number that appears most often in a data set. In this question, 25 was repeated 3 times and no other ones where repeated 3 times. Thats why 25 is the mode.

2 - D

Median - The middle number of a data set that is arranged from least to greatest.

3 - True

There is no mode because all of the numbers only appear once.

4 - A

5 - C

4 0
3 years ago
Write an equation in slope-intercept form for the line that passes through the
Pavlova-9 [17]
Make slope intercept
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3x = y + 5
y = 3x - 5
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Plug in the point
-2 = 3(-1) + b
-2 = -3 + b, b = 1

Solution: y = 3x + 1
6 0
3 years ago
Read 2 more answers
I don’t now if u can see it very well but could anyone help me with this
Sauron [17]

Answer:

A and c

Step-by-step explanation:

If im correct A and C is the answer because A and C represent the vertical angles :)

4 0
3 years ago
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What is 13x7?????????????
m_a_m_a [10]
91 ! just use a calculator or do it by hand
7 0
3 years ago
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