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inessss [21]
3 years ago
10

What is the measure of < C

Mathematics
1 answer:
Zepler [3.9K]3 years ago
8 0
Well in a right angle triangle, we know that angle C would be 90 degrees, we can check this by solving for X and seeing if the expression 2x will give us a value of 90 degrees.

So 2x = 90
X = 90/2
X = 45 degrees.

90 = 2x
90 = 2(45)
90 = 90.

Thus since the equation is true, X = 45 degrees, we can also solve for the remaining angles knowing what X is.
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Solve (x + 9)2 = 25.
Rina8888 [55]

Answer:

x = -4 and x = -14

Step-by-step explanation:

Our equation is (x + 9)² = 25

Applying the square root property we would need to take the square root of both sides: \sqrt{(x+9)^{2} } =\sqrt{25}

This give us x + 9 = ±5

Here we have two equations since taking the square root gives us a positive and negative value

Our first equation is x + 9 = 5, and to isolate the variable we would need to subtract 9 from both sides, giving us x = -4

Our second equation is x + 9 = -5, and to isolate the variable we would need to subtract 9 from both sides, giving us x = -14

3 0
3 years ago
Determine if the triangles, CEG and DEF ,are similar. If so, identify the similarity
Harlamova29_29 [7]

Answer:

A

Step-by-step explanation:

AA similarity means 2 angles must be similar.

Angle 1: Angle E is the same for both triangles

Angle 2: Angle F and angle G are congruent because they both have right angle markings so they are both 90 degrees.  

8 0
3 years ago
What is 3/4 of 535?????????
Luda [366]
Whenever they ask what is a certain fraction of a number, just multiply.
(3/4)(535)=401.25
6 0
3 years ago
Read 2 more answers
Robert states, "If the diagonals of a quadrilateral bisect each other, then the quadrilateral is a rectangle." Decide if his sta
Stels [109]
It is false. It can be proven with a counterexample. The counterexample may be a rhombus. Rhombus is a quadrilateral, is not a rectangle and its diagonal bisect each other.
4 0
3 years ago
Read 2 more answers
Line m has a slope of 0. Line n is perpendicular to line m. What is the slope of line n?
lys-0071 [83]
<h3>Your answer would be A, Line n has an undefined slope.</h3><h3 /><h3 />

The slope of a line perpendicular to another is the negative reciprocal of the other line.

In this case, the slope of this line is just 0. It'll be better to think of it as instead of 0, something like 0/1, or 0/2, which are equivalent to 0 but work better with the explanation. I'm just going to use 0/1

Therefore, when you take the negative reciprocal of the slope of 0/1, then you end up with -1/0 as the slope of line n. When you divide by 0, the answer is always undefined. Therefore, the line has an undefined slope.

Another way to think about this is by thinking of Line m as a horizontal line. A line with a slope of 0 is just a horizontal line. Perpendicular lines are lines that meet at 90 degree angles. Therefore, the line that would meet with line m, line n, would be a vertical line. And since vertical lines have an undefined slope, line n would have an undefined slope.

Hope this helped!

6 0
4 years ago
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