Please help me. I dont wanna disappoint my mom again

Answer:

Convert 300 L in 15 seconds to L/min a. ... 10) How many kilograms of water are in a standpipe containing 5678 L? a. ... tank volume if a pump is discharging a constant 60 litres per minute into the tank

Answer: 1

Step-by-step explanation: you plug in -1 as x for g(x) and you use the answer from that (which is 6) and plug that into f(x)

The value of composite function (fog)(-1) = 10/3.

A function whose values are obtained from two given functions by first applying one to an independent variable and then using the result to apply the second, and whose domain is made up of those independent variable values for which the first function's result falls within the second function's domain.

The two functions are given below:

f(x) = 8/x+2

g(x) = 4x² + 2

To evaluate the composite value  (fog)(-1), first solve for g(-1).

Put x = -1 in 'g' function

g(x) = 4x² + 2

g(x) = 4(-1)² + 2

      = 4 + 2

g(x)  = 6

Now, substitute the value of g(6) in 'f' function

f(x) = 8/x+2

f(6) = 8/6 + 2

     = 10/6

Therefore, the composite value (fog)(-1) = 10/3.

To know practical use of composite function, here

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Answer:If the diameter is 13 you should try each answer until you find pi.

To find pi you have to divide the circumference by the radius.

You don't need to find the circumference in this question but you can.

The circumference is 40.82

Then you have to divide

40.82÷13

that equals 3.14

and because that is pi, C is your answer

Step-by-step explanation:

Answer:

its C

Step-by-step explanation:

Answer:

The equation is: 5(x+9) = 55

This basically means that five times the quantity x+9 is equal to 55.

Let me know if this helps!

Answer:

15 is the answer

Step-by-step explanation: 9.0 divided by 0.6 = 15. Hope this help!!!

Step-by-step explanation:

Density=5250/4.5=1166.66 g/ml

Answer:

guessing 8

Step-by-step explanation

27-3= 24

24/3=8

Answer:

Step-by-step explanation:

the simpliest form is [tex]1\frac{2}{5}[/tex]

It already is a fraction. If you need it simplified, it would be 1 2/5.

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hope it helps

Answer:

[tex]v = \frac{b \times h \times l}{2} \\ \frac{12 \times 6 \times 14}{2} \\ = 504[/tex]

Answer:

180 - a = b and a + b = 180

Step-by-step explanation:

Answer:

- 2, - 1, 0, 1

Step-by-step explanation:

Consider the integers that satisfy each inequality

- 3 < x < 2

solutions are x = - 2, - 1, 0, 1

- 2 ≤ x ≤ 2

solutions are x = - 2, - 1, 0, 1, 2

Thus the integer values that satisfy both are common to both, that is

x = - 2, - 1, 0, 1

Answer:

x < 6

Step-by-step explanation:

18 > 12 + x

Switch sides:

12 + x < 18

Subtract 12 from both sides:

12 + x - 12 < 18 - 12

x < 6

The solution of the inequality is,

⇒ x < 6

And, Graph is shown in image.

A relation by which we can compare two or more mathematical expression is called an inequality.

Given that;

The inequality is,

⇒ 18 > 12 + x

Now, We can solve the inequality as;

⇒ 18 > 12 + x

Switch sides:

⇒ 12 + x < 18

Subtract 12 from both sides:

⇒ 12 + x - 12 < 18 - 12

⇒ x < 6

Thus, The solution of the inequality is,

⇒ x < 6

Learn more about the inequality visit:

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Answer:

x²+6x+9=0

x²+3x+3x+9=0

x(x+3)+3(x+3)=0

(x+3)(x+3)=0

either

x+3=0

x=-3

or

x+3=0

x=-3

Step-by-step explanation:

next method

x²+6x+9=0

x²+2×x×3+3²=0

it is in formula of (x+y)²

(x+3)²=0

x+3=√0

x+3=0

x=-3

Answer:

-8x^3 + 9x^2 - 28 (Last choice)

Step-by-step explanation:

The question is asking what f(x) - g(x) is.

Use the given equations and add/subtract like-terms,

-8x^3 +20x^2 - 5 - 11x^2 -23 = The solution above

Answer:

(31y² + 3y + 12) / 6y

Step-by-step explanation:

See photo below.

Feel free to ask any questions! :)

The answer is A) 3/100.

Answer:

D

Step-by-step explanation:

i = √-1 , as number inside a √ cannot be a negative number, i is an imaginary number

2 + √-36

= 2 + √(36×-1)

= 2 + 6i, d

Answer:

Sin O = [tex]\frac{2\sqrt{5} }{5}[/tex]

Cos O = [tex]-\frac{\sqrt{5} }{5}[/tex]

Cot O =  [tex]-\frac{1}{2}[/tex]

Csc O =  [tex]\frac{\sqrt{5} }{2}[/tex]

Sec O = [tex]-\sqrt{5}[/tex]

Step-by-step explanation:

Do you know the definitions of all the trig functions?  If not, you need to memorize them.  Also, you need to memorize which functions are positive in each quadrant.  All functions are positive in quad I, sine and reciprocal are positive in quad II, tan and reciprocal are positive in quad III, and cos and reciprocal are positive in quad IV.  OK?

Tan of  an angle is opposite side/adjacent side of a right triangle

If the tan O = - 2. let the opp. side = 2 and adjacent side = 1.  Then the hypotenuse = [tex]\sqrt{2^{2} + 1^{2} } = \sqrt{4 + 1} = \sqrt{5}[/tex]

Sine is positve and equals opp/hyp = [tex]\frac{2}{\sqrt{5} } = \frac{2\sqrt{5} }{5}[/tex]

Cos is negative and equals adj/hyp  =  [tex]-\frac{1}{\sqrt{5} } = -\frac{\sqrt{5} }{5}[/tex]

Cot is negative and is the reciprocal of the tan or adj/opp = [tex]\frac{-1}{2}[/tex]

Csc is positive and is the reciprocal of the sine or hyp/opp = [tex]\frac{\sqrt{5} }{2}[/tex]

Sec is negative and is the reciprocal of the cos or hyp/adj = [tex]-\sqrt{5}[/tex]

Answer:

b and d

Step-by-step explanation:

i think its d i couldnt read the story so if im wrong i am terriably sorry.

Answer:

Step-by-step explanation:

9 = 3 * 3 = 3²

4x² = 2²x² = (2x)²

9 - 4x² = 3² - (2x)²     {a² - b² = (a + b)(a - b) ; a = 3 ; b = 2x}

          = (3 +2x)(3 - 2x)

Answer:

y=4/3x-7

Step-by-step explanation:

Answer:

Y=4/3x-7

Step-by-step explanation:

Answer:

9 units

Step-by-step explanation:

The dotted line, which is the height, is labeled as 9, so it is 9 units.

Hope that helps!

Answer: 9 units

Step-by-step explanation: If you look at the question on the photo you see a dotted line with a 9 on it. On a triangle when you something like that you know it the actual height of the triangle