13. F(x)= -2x squared help please

Answer:

.60

Step-by-step explanation:

Answer:

0.60 60% = 0.60

Answer: relatable

Step-by-step explanation: Plz give brainliest

u should dial 911 on ur phone

{60°, 300°}

Using the half angle identity:

[tex]\sin\left(\frac{x}{2}\right)+\cos\left(x\right)-1=0\\\sin\left(\frac{x}{2}\right)+1-2\sin^{2}\left(\frac{x}{2}\right)-1=0\\\sin\left(\frac{x}{2}\right)-2\sin^{2}\left(\frac{x}{2}\right)=0\\\sin\left(\frac{x}{2}\right)\left(1-2\sin\left(\frac{x}{2}\right)\right)=0\\[/tex]

Using zero product rule:

[tex]\sin\left(\frac{x}{2}\right)=0,\frac{1}{2}\\x=\frac{x}{2}=0,30,150,180\\x=0,60,300,360[/tex]

Since, 0° ≤ x < 360°, so, x=60,300

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Answer:

10.4 miles

Step-by-step explanation:

convert 30% to a decimal 0.3

Then multiply 8×0.3=2.4

Now you have to add 2.4 to 8 because it is 39% more

Step-by-step explanation:

It is

4,000,000+400,000+8000+700+3

Answer:

f(x) = 5(4)^x is the correct answer

Answer: y = 1/4x - 4

Step-by-step explanation: write it in slope intercept form y = mx + b

As you said, we can solve this system for y by using substitution.

[tex]x = 2y - 6\\y = 3x - 7\\\\y = 3(2y - 6) - 7\\\\y = 6y - 18 - 7\\\\y = 6y - 25\\\\-5y = -25\\\\y = 5[/tex]

Now, using what we got for y, we plug it into one of the original equations to solve for x.

[tex]x = 2(5) - 6\\\\x = 10 - 6\\\\x = 4[/tex]

Now we have the solution of this system.

[tex](4, 5)[/tex]

For the given equations x=2y-6 and y=3x-7 the value of x is 4 and the value of y is 5.

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that the two equations are x=2y-6 and y=3x-7. The value of x and y will be calculated as,

x=2y-6

y=3x-7

Solve the above equations by substitution method,

x=2(3x-7)-6

x = 6x -14 - 6

6x - x = 20

5x = 20

x = 4

The value of y will be calculated as,

y=3x-7

y = ( 3 x 4) - 7

y = 12 - 7

y = 5

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Answer:

I like math.

Step-by-step explanation:

But I don't do seven hours of school because I am doing online school. I do 8 most of the time

Answer:

19 is the answer.

You just want to find the total kinds of drinks the shop sells so just add up all the different kinds of drinks like so,

4+10+5=19

So the coffee shop sells 19 different types of drinks.

Please mark brainliest

Answer:

5

Step-by-step explanation:

1 1/4 x 4

(1 x 4) + 1 = 5/4

5/4 x 4/1 = 20/4

20/4 = 5/1

Hope this helped.

Answer:

67/100

Step-by-step explanation:

its the simpelist form

Answer:

The answer is b and d

Step-by-step explanation:

The other answers are wrong.

Therefore b and d are correct.

Hope you get it right and this helps!

Answer:

(x+20) + (x-9)

Step-by-step explanation:

Answer:

15 I think.

Step-by-step explanation:

If the perimeter is 42 inches and the width is 6 inches. That is only one side so you multiply.6 by 2 to get 12. Then 42 minus 12 is 30. Finally you split 30 into 2, to get the length. Since there are to sides. So 15.

Answer:

[tex]x=8[/tex]

Step-by-step explanation:

Answer:

-9+12

Step-by-step explanation:

Answer:

12 - g

Step-by-step explanation:

12 - g

Addition property of zero: Any number added to 0, gives the same number

Answer:

true

Step-by-step explanation:

it's true, good luck :)

Answer: I think it would be 1/52

Step-by-step explanation:

Answer:

(1/3)(3x+12)

Step-by-step explanation:

1/3

times (3x+12)

3x+12 will be three times the number x + 12

Answer:

1 2 and 3

Step-by-step explanation:

Hopefully this helps

Answer:

22 meters/23.98 yards= 1 meter/ 1.09 yards

Step-by-step explanation:

You would multiply 22 by 1.09 and that is 23.98. Then you divided that from 1 and get 23.98 or you can round it to 24.

Answer:because 6, 10, and 5 equal 21

Adding 6, 10, and 5 to a number the same as adding 21 to that number, because sum of 6, 10, and 5 is 21.

Given that, adding 6, 10, and 5 to a number the same as adding 21 to that number.

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

Let the unknown number be x.

Add 6, 10, and 5 to x, we get x+6+10+5 = x+21

Add 21 to x = x+21

So equation is x+21 = x+21

Therefore, adding 6, 10, and 5 to a number the same as adding 21 to that number, because sum of 6, 10, and 5 is 21.

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Answer:

Step-by-step explanation:

5/8 = 15/24 times 4       2.5 an hour

2/3 = 16/24 times 5       3 an hour

Machine B has the greater rate

Answer:

C

Step-by-step explanation:

4(7)-10=18

28-10=18

18=18

Answer:

It's C I think

have a nice day mate

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The  exponential function has an x-intercept should be considered as the option A. F(x) = 100+-5-1.

It is the mathematical function that should be denoted by f(x)=\exp or [tex]e^{x}[/tex]. It defined the positive valued function with respect to the real variable. Also, it could be extended to the numbers that are complex or could be general to the other maths objects.

hence, The  exponential function has an x-intercept should be considered as the option A. F(x) = 100+-5-1.

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