Ask question

Ask question

All categories

3 years ago

8

Which of the following is not a true statement about the angles shown below? A H 3x x + 15 Z D x + 15 A. The measure of ZAHD is

30°. B. The measure of ZHDZ is 45°. C. The measure of ZHZD is 45°. D. The value of x is 30.

1 answer:

Liula [17]3 years ago

4 0

Answer:

A is not true

Step-by-step explanation:

You might be interested in

there are 9 students that play tennis. if 75% of the students do not play tennis, how many are in the class

Paha777 [63]

So 9 students = 25% (100%-75%=25%)
100 : 25 = 4
4 * 9 =
36 students

7 0

4 years ago

Value of 8 power of -3

lozanna [386]

Answer:

Step-by-step explanation: $8^{-3} =\frac{1}{8^{3} } =\frac{1}{8X8X8} =\frac{1}{512}$

7 0

4 years ago

Solve x2 = 12x – 15 by completing the square. Which is the solution set of the equation? Solve x2 = 12x – 15 by completing the s

Svetlanka [38]

Answer: $6+\sqrt{21}\ \text{and}\ 6-\sqrt{21}$

Step-by-step explanation:

Given

Quadratic equation is

$x^2-12x+15=0$

Solving by completing the square method

$\Rightarrow x^2-2\cdot 6\cdot x+15=0\\\text{add and subtract 36}\\\Rightarrow x^2-2\cdot 6\cdot x+15+36-36=0\\\Rightarrow x^2-2\cdot 6\cdot x+36+(-36+15)=0\\\text{using}\ (a-b)^2=a^2+b^2-2ab\\\Rightarrow (x-6)^2-21=0\\\Rightarrow (x-6)^2=21\\\Rightarrow x-6=\pm \sqrt{21}\\\Rightarrow x=6\pm \sqrt{21}$

The solution set of the equation is $6+\sqrt{21}\ \text{and}\ 6-\sqrt{21}$

6 0

3 years ago

Read 2 more answers

Find f(-5) of f (x) = x + 1<br> 1) 4<br> 2) 5<br> 6) 6

Alex

F(-5) just means that your substituting the number -5 for every x value. So if you have x+1 this would be -5+1 which is -4

7 0

3 years ago

Which statement about this equation is true?

Viktor [21]

The equation has no solution because:

5(n+10)=5n+10n
5n+10n=5n+10n
I subtract 5n from both sides
10n=10n
Only one side is supposed to have the variable which is n, so the equation has no solution.

4 0

3 years ago