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ch4aika [34]
3 years ago
7

Which equations are true?

Mathematics
2 answers:
Nutka1998 [239]3 years ago
6 0
B, the rest are wrong
aleksklad [387]3 years ago
4 0

Answer:

<h2>C : None of the above</h2>

Step-by-step explanation:

A : -2+(-2) = 0 False

-2+(-2) = -4

A negative plus a negative is actually a negative. When adding signed numbers, it is useful to think of positive numbers as gains and negative numbers as losses.

B : 2-(-2) = 0 False

2-(-2) = 4

Because there is subtraction sign so if subtraction sign added to negative sign it makes positive from 2-(-2) it will be 2+2

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How to convert this equation to y=mx+b form:<br> y+2x=y-2
wlad13 [49]
Y = mx + b is in the form of slope-intercept.
From the equation given, y + 2x = y - 2, we can convert it in the format of the slope intercept form and it depends we can came up to that form.

y + 2x = y -2
y - y = -2x - 2
0 = 2x + 2
x = -1

Unfortunately, the form y = mx + b is impossible to achieve.

4 0
3 years ago
Two chords intersect within a circle to form an angle whose measure is 53 degrees. If the arcs are represented by 3x+3 and 10x-1
nignag [31]

Answer:

76degrees

Step-by-step explanation:

Using the theorem which states that the vertex of the angle inside a circle is half the sum of the measured intercepted arcs. Hence;

Angle at the vertex = 53 degrees

Half the sum of intercepted arcs = 1/2(3x+3+10x-14)

Half the sum of intercepted arcs = 1/2(13x-11)

Equating to  the vertex to find x

1/2(13x-11) = 53

13x - 11 = 2 * 53

13x - 11 = 106

13x = 106 + 11

13x = 117

x = 117/13

x = 9

For the arc 3x + 3

= 3(9) + 3

= 27 + 3

= 30degrees

For the arc 10x - 14

= 10(9) - 14

= 90 - 14

= 76degrees

Hence the measure of the larger of the two arcs is 76degrees

8 0
3 years ago
I need the answers pls!!!!<br>please​
Igoryamba

Answer:

(4x - 3)(5x - 8) = 20x^2 -47x + 24

Step-by-step explanation:

Given

(4x - 3)(5x - 8)

Required

Identify and correct error

The error is when the inner and outer terms are multiplied. i.e.

4x * -8 = -32x not 32x

-3 * 5x = -15x not 15x

So, the expression is:

(4x - 3)(5x - 8) = 20x^2 - 32x -15x + 24

(4x - 3)(5x - 8) = 20x^2 -47x + 24

6 0
3 years ago
People of different ages were asked the question "Do you listen to audiobooks?" The frequency table displays the percentage of "
satela [25.4K]

No, because the data display the percentage of time spent by each age group, not a relative frequency compared with the whole.

The correct option is C.

<h3>What is pie chart?</h3>

The “ pie chart” is also known as a “circle chart”, dividing the circular statistical graphic into sectors or sections to illustrate the numericical value.

Given

People of different ages were asked the question "Do you listen to audiobooks?

" The frequency table displays the percentage of "yes" responses for different age groups. 13 to 17, 8 percent; 18 to 25, 15 percent; 26 to 35, 23 percent; 36 to 45, 45 percent; 46 and over, 48 percent.

Considering that the data displays the percentage of time spent by each age group, not a relative frequency compared to the whole, a pie chart would not be appropriate.

  • Pie charts are used to indicate relative frequency of each group, when the whole combines to 100%.
  • In this problem, the sum of the percentages is not 100%, hence, it does not indicate relative frequency, and the third option is correct.

Hence, No, because the data display the percentage of time spent by each age group, not a relative frequency compared with the whole.

You can learn more about pie charts at;

brainly.com/question/25796636

4 0
2 years ago
Please help meeeeeeeeeeeeeeeeeee...WILL GIVE BRAINLIEST
kherson [118]

Answer: Jackie Robinson was an African American baseball player. He had accomplished-

He was well known for-

The rest is up to you :)

Im not very familiar on the story bc im in mid school but you can fill in the blanks i hope this helps you man :)

Step-by-step explanation:

3 0
3 years ago
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