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Mars2501 [29]
2 years ago
13

The square is 90 degrees & the triangle has 180 degree but I need help to solve

Mathematics
1 answer:
9966 [12]2 years ago
8 0

Answer:

x= 44°

Step-by-step explanation:

Since a triangle is 180° in total, if you take 46° and 90° and subtract it from 180°, you will get 44° for x.

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Which of the following systems of inequalities represents the graph?
mixer [17]

Answer:

Option D.

Step-by-step explanation:

Consider the below figure attached with this question.

If a line passes through two points (x_1,y_1) and (x_2,y_2), then the equation of line is

y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)

From the below figure it is clear that the a solid line passes through the points (-2,0) and (0,4). So, the equation of related line is

y-0=\frac{4-0}{0-(-2)}(x-(-2))

y=2(x+2)

y=2x+4

-2x+y=4

All area above the solid line is shaded. It means the sign of inequality is ≥.

-2x+y\geq 4

From the below figure it is clear that the a dashed line passes through the points (2,0) and (0,2). So, the equation of related line is

y-0=\frac{2-0}{0-(2)}(x-(2))

y=-1(x-2)

y=-x+2

x+y=2

All area below the dashed line is shaded. It means the sign of inequality is <.

x+y

System of inequality is

-2x+y\geq 4

x+y

Therefore, the correct option is D.

5 0
3 years ago
What is an equation of the line that passes through the point<br> (-2,-8) and has a slope of 3?
nignag [31]

Answer:

y = 3x - 2

Step-by-step explanation:

Use the point-slope equation since we are given a point that the line passes through and its slope:

y - y1 = m(x - x1)

(-2, -8), m = 3

Substitute these values into the equation.

  • y - (-8) = 3(x - (-2))
  • y + 8 = 3(x + 2)
  • y + 8 = 3x + 6
  • y = 3x - 2

The equation of the line that passes through the point (-2, -8) and has a slope of 3 is y = 3x - 2.

7 0
2 years ago
To solve n+7=15 you should first
sertanlavr [38]

Answer:

  1. Collect like terms and simplify
  2. Subtract 7 from both sides

Step-by-step explanation:

METHOD 1

n+7=15\\n =15-7\\n = 8

METHOD 2

n+7-7=15-7\\n =8

7 0
3 years ago
Read 2 more answers
HEY LOL PLEASE ANSWER THESE. PLEASE IM BEGGING YOU. HELP ME
Alexandra [31]

Answer:

a. ∆ABC ~ ∆A'B'C'

b. Enlargement

c. Scale factor = 4

Step-by-step explanation:

a. <A corresponds to <A'

<B corresponds to <B'

<C corresponds to <C',

Therefore, the similarity statement would be: ∆ABC ~ ∆A'B'C'

b. The image of the dilation is an enlargement of the original figure because the side lengths of ∆A'B'C are larger than the corresponding side lengths of ∆ABC.

c. Scale factor = the ratio of the corresponding sides

Thus:

Scale factor = A'B'/AB = B'C'/BC = A'C'/AC

Scale factor = 24/6 = 48/12 = 60/15 = 4

Scale factor = 4

5 0
3 years ago
Which of the following is the conjugate of the expression below when x&gt; -3?
harina [27]

Answer:

7+\sqrt{x+3}

Step-by-step explanation:

The conjugate of a radical expression is obtained by changing the sign of the middle term.

The conjugate of a+\sqrt{b} is simply a-\sqrt{b}

Therefore, to obtain the conjugate of the given expression we simply shall be  changing the negative sign to positive;

The conjugate of 7-\sqrt{x+3} is simply;

7+\sqrt{x+3}

5 0
3 years ago
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