Seven times the sum of 8 and a number.​

Answer:

Answer:

A)cosx(4sinx-1)=0

Step-by-step explanation:

The given equation is

We equate everything to zero to get:

Use the double angle property, to get:

This implies that:

The correct answer is A

Step-by-step explanation:

Answer:

TUV~TRQ

SF=SAS

Step-by-step explanation:

bet

Answer:

Work backwards

Step-by-step explanation:

I took this quiz rn

Answer: The answer is Work Backwards

Step-by-step explanation: I just took the quiz and got it right

Answer:

wheres the graph

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

The answer isn't 3. I had this question on a test and the answer was 2 and not 3!

Answer:

-3

Step-by-step explanation:

each line is decreasing by 3

is 9, 6, 3, 0, -3

Answer:

(1,12), (2,24), (3,36)...

Answer:

I am 60% sure it is line and plane.

Step-by-step explanation:

Answer:

-10 and 10

Step-by-step explanation:

subtracting what is to the right of the equal sign from both sides of the equation :  x^2-10-(90)=0

step 1 - A difference of two perfect squares,  A2 - B2  can be factored into  (A+B) • (A-B)

(at the end of step 1 it should look like this) =  (x + 10)  •  (x - 10)

solve as many equations as there are terms in the product

any solution of term = 0 solves product = 0 as well.

Answer:

x = 5 ±√115

Step-by-step explanation:

x² - 10x - 90 = 0

You can solve for x by doing it in 2 ways: Completing the square and by using the quadratic formula

Completing the Square

(x² - 10x + 25) - 25 - 90 = 0

(x - 5)² - 115 = 0

(x - 5)² = 115

x - 5 = ±√115

x = 5 ±√115

Quadratic Formula

√460 = √4 X √115

Hence 2√115

Answer:

8

Step-by-step explanation:

3y - w

substitute y for 6 (given)

3 * 6 - w

18 - w

now substitute w for 10 ( given)

18 - w

18 - 10

8

Answer:

[tex]y= -\frac19(x-3)^2+1[/tex]

Step-by-step explanation:

the x-3 is to shift a normal parabola 3 to the right

the +1 is to lift the top up by one

the -1/9 is to compress and swapt it around

Answer:

y =-  [tex]\frac{1}{9}[/tex](x - 3)² + 1

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

Here (h, k) = (3, 1) , thus

y = a(x - 3)² + 1

To find a substitute another point on the graph into the equation

Substitute (1, [tex]\frac{5}{9}[/tex] ) into the equation

[tex]\frac{5}{9}[/tex] = a(1 - 3)² + 1 ( subtract 1 from both sides )

- [tex]\frac{4}{9}[/tex] = 4a ( divide both sides by 4 )

a = - [tex]\frac{1}{9}[/tex]

y = - [tex]\frac{1}{9}[/tex] (x - 3)² + 1 ← equation of parabola in vertex form

Answer:

9 and 10, and it is closer to 9

Step-by-step explanation:

85 is closer to 81 than 100.

Answer:

between 9 and 10 and it is closer to 9

Step-by-step explanation:

Answer: 12

Step-by-step explanation:

From the question, we are informed that Steve counts up by 4s and Jon counts up by 3s. To get the smallest number that they both say, we have to find the multiple of 3 and 4 and then choose the lowest. This will be:

Multiples of 3 = 3, 6, 9, 12, 15, 18 ...

Multiples of 4 = 4, 8, 12, 16, 20, 24 ....

We can see that the smallest is 12

Answer:

Step-by-step explanation:

4, 8 , 12 , 16, 20 , 24

3, 6 , 9 , 12, 15, 18

Answer: I think it 3/10

Step-by-step explanation:

Answer: 3/10

Step-by-step explanation:

Answer:

the correct one is a

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Answer:

(x - 9)(x + 2)

x = 9 or -2

Step-by-step explanation:

First, we need to find factors of 18 that add up to -7

Factors of 18:

1 and 18

2 and 9

3 and 6

Add/Subtract them to have a total sum of -7

18 - 1 = 17 ...... 1 - 18 = -17     (not -7)

9 - 2 = 7 ........ 2 - 9 = -7       (sum of -7)

6 - 3 = 3 ......... 3 - 6 = -3 .    (not -7)

Hence the numbers that would go in the brackets would be -9 and 2

(x - 9)(x + 2)

x² - 7x - 18

Answer:

(x-9)(x+2)

Step-by-step explanation:

The first term is the product of two x's being multiplied together. the second term (-7x) is the sum of the two numbers. -18 (the third term)  is the product of those numbers.

Think: what two numbers will add up to -7 and multiply to -18

Those numbers are -9 and 2

Now, this is a quadratic trinomial, and you factor these kinds of equations like this: (x+a)(x+b) (a and b as placeholders for actual numbers)

Now, plug -9 and 2 in

(x-9)(x+2)

Hope this helps!

Answer:

-2

Step-by-step explanation:

I am not sure but its ans may be -2

Answer:

x = 14

Step-by-step explanation:

hope this is right!!

Answer:

National debt would be 1,400,000,000,000 to the power of 12.

Step-by-step explanation:

Answer:

d

Step-by-step explanation:

Answer:

What is the question?

Step-by-step explanation:

Answer:

What do you need help in

Step-by-step explanation:

Answer:

150

Step-by-step explanation:

7 x 30 = 210

5 x 30 = 150

Sorry I couldn't explain more, But i hope this helps!

Answer:

-189

I looked it up

Answer:

i believe it is c

Step-by-step explanation:

because i did the test

Answer:

D

Step-by-step explanation:

Answer:

13 feet long

Step-by-step explanation:

Given area of a square patio is 196 square feet.

Length of each side of the patio is the same, since it is a square.

Let a be the length of the side of the square

area=a*a=196

a^2=196

a=√196

a=13 feet

Answer: It will take 1 second for the ball to reach a height of 5 meters.

Step-by-step explanation:

Given: The function [tex]h=10t-5t^2[/tex] can be used to find the height(h) of the ball in meters after t seconds.

Now, put h= 5 meters, we get

[tex]5=10t-5t^2[/tex]

[tex]\Rightarrow\ 1=2t-t^2\ \ \[\text{divide both sides by 5}]\\\\\Rightarrow\ t^2-2t+1=0\\\\\Rightarrow(t-1)^2=0\\\\\Rightarrow (t-1)=0\\\\\Rightarrow t=1[/tex]

Hence, it will take 1 second for the ball to reach a height of 5 meters.

Answer:

i cant see the picture i know i can help you i just can't see the pic

Step-by-step explanation:

Answer:

15

Step-by-step explanation: