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Elina [12.6K]
4 years ago
11

What value of r makes the equation true?

Mathematics
2 answers:
CaHeK987 [17]4 years ago
5 0
r+(-0.16)=0.37
r-0.16=0.37
r=0.37+0.16
r=0.53
The answer is: d. 0.53
lions [1.4K]4 years ago
5 0
D is the answer to your question.
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If F(x)=2 and g(x)=x^2+1,what is g(3)+f(4)
notka56 [123]

Answer:

12

Step-by-step explanation:

for g(3) replace x with 3 and for f(4) since f(x) is a constant function the value won't change so you put 2 then add both functions up

g(3) = 3^2 + 1 ➡ 10

f(4)= 2

10 + 2 = 12

4 0
3 years ago
Another way to write 3/4 cup is?​
Firlakuza [10]

Answer:

0.75

Step-by-step explanation:

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UNO [17]
The domain is all real numbers, the y intercept is 3 the asymptote is -1
Im not sure about the last two sorry
6 0
3 years ago
A cleaning company charges x dollars per hour to clean floors and y dollars per hour to clean the rest of a house.
saul85 [17]
The answer is B. (15,18)

Solution:

First, let's set the variables first.

X = dollars per hour to clean the floor
Y = dollars per hour to clean the rest of the house

For the first statement, "<span>2 hours to clean floors and 3 hours to clean the rest of a house, the total charge is $84"
We can put it into an equation.
         2X + 3Y = 84       </span>⇒    equation 1

For the first statement, "<span>1 hour to clean floors and 4 hours to clean the rest of a house, the total charge is $87'
         X + 4Y = 87         </span>⇒    equation 2

Multiply first equation 2 by 2 to make the coefficient of both equations 1 and 2 the same.

Using elimination method in solving for x and y,

 
  (equation 1)              2X + 3Y = 84
  
 (equation 2)            2(X + 4Y) = 87   
                                    2X + 8Y = 174  
⇒ equation 3

Next, subtract equation 3 from equation 1.
            2X + 3Y = 84
      -   (2X + 8Y = 174)
        -------------------------
                  - 5Y = -90
                      Y = 18

Find X when Y = 18
@ equation 1  :    2X + 3Y = 84
                            2X + 3(18) = 84
                            2X + 54 = 84
                            2X = 84 - 54
                            2X = 30
                             X = 15
   
The answer is in ordered pairs of cleaning the floors and to clean the rest of the house. So, in the form (X,Y).

Answer: (15,18)

6 0
3 years ago
Consider the quadratic function f(x) = x2 – 5x + 12. Which statements are true about the function and its graph? Select three op
Rashid [163]

Answer:

I will assume the equation is supposed to be f(x) = <u>x^2</u> – 5x + 12 since it is said to be a quadratic equation.

Step-by-step explanation:

<u>See attached graph.</u>

The value of f(–10) = 82     <u><em>False</em></u>

      f(-10) = (-10)^2 - 5*(-10) + 12

       f(-10) = (100) +50 + 12

      f(-10) = 162

The graph of the function is a parabola.  <u><em>True</em></u>

The graph of the function opens down.   <u><em>False</em></u>

The graph contains the point (20, –8).      <u><em>False</em></u>

The graph contains the point (0, 0).          <u><em>False</em></u>

8 0
2 years ago
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