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3 years ago

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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