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Anton [14]
3 years ago
5

PLEASE HELPPPPPP ME

Mathematics
1 answer:
seraphim [82]3 years ago
5 0

Answer:

True

Step-by-step explanation:

Do the working for it and youll find the answer

1 + cosa

\pi

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X^2+10x+22=13 1. Rewrite the equation by completing the square your equation should look like (x+c)^2 = d or (x-c)^2=d 2. What w
sukhopar [10]

Answer:

(x+5)² = 16

Solution: -1 and -9

Step-by-step explanation:

Given the quadratic equation X^2+10x+22=13

Subtract 22 from both sides

X^2+10x+22-22=13-22

x^2+10x = -9

Complete the square

Add the square of half of coefficient of x to both sides

coefficient of x = 10

half of coefficient of x = 10/2 = 5

square of half of coefficient of x= 5² = 25

Add 25 to both sides

x²+10x + 25 = -9+25

(x+5)² = 16

Hence the required equation is (x+5)² = 16

(x+5)² = 16

square root both sides

√(x+5)² = √16

x+5  = √16

x +5 = ±4

x = +4 - 5 and -4-5

x = -1 and -9

Hence the solution to the equation is -1 and -9

7 0
3 years ago
On a test, if 80 questions are answered and 42% of them are correct, what is the number of correct answers
Arisa [49]
42×80 divided by 100
34 number of answers are correct.
7 0
3 years ago
Which method would you use to prove that the two triangles are congruent?
tankabanditka [31]
You can use the SSS, SAS, ASA, AAS congruency for any triangles and the HL congruency for just the right triangle
4 0
4 years ago
In the function y = -5x2 + 5 , the graph will open down, be shifted up 5 units, and it will be wider than the parent function y
masya89 [10]
We are considering the function y=f(x)=-5 x^{2} +5

the graph of this function is the graph of the parent function y=g(x)= x^{2} after applying the following steps.

1. multiply by -1:

-x^{2} is x^{2} reflected with respect to the x-axis.


2. multiply by 5:

-5x^{2} is -x^{2} shrinked towards the y axis. 

for example, consider x=1/2

 -5x^{2}=-5( \frac{1}{2} )^{2}=-5* \frac{1}{4}= \frac{-5}{4}=-1.25

 -x^{2}=- ( \frac{1}{2} )^{2}=- \frac{1}{4}=-0.25

now this means that -5x^{2} is "lower" than -x^{2}, which means there is a shrinking of the graph.

3. add 5:

-5 x^{2} +5 is -5 x^{2} shifted 5 units up.


4.

so the graph of the function a) opens down, b) is shifted 5 units up, c) is not wider than the parent function



Answer: False
6 0
4 years ago
-2(3f - 5g)<br> I need help with this
Ghella [55]

Answer:

-6f+10g

Step-by-step explanation:

3 0
3 years ago
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