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Vinil7 [7]
3 years ago
14

The Barbers are keeping track of their family energy costs. It costs the Barber $0.16 per week to run their dishwasher. How much

will it cost them to run their dishwasher for 52 weeks
Mathematics
1 answer:
Darina [25.2K]3 years ago
8 0

Answer:

$8.32

Step-by-step explanation:

You just multiply 0.16 with 52

You might be interested in
Texas University Quarterback, Michael Daniels, is standing on his own 10-yard line. He throws a pass tword the opposite goal lin
dimulka [17.4K]

Answer: The function is y=-\frac{28}{625}(x-35)^2+30.

Explanation:

It is given that Michael Daniels, is standing on his own 10-yard line. He throws a pass toward the opposite goal line. The football is 2 yards above the ground when the quarterback lets it go.

It follows a parabolic path. Reaching its highest point, 30 yards above the ground. It is caught 50 yards downfield at a point 2 yards above the ground.

So, the initial point is (10,2) and the other point is (60,2).

The height function of a football represents a downward parabola. The maximum point of the function is called vertex. So the vertex is (h,30).

The two point (10,2) and (60,2) have same y-coordinate, therefore the function is maximum at the midpoint of both points.

midpoint=(\frac{10+60}{2}, \frac{2+2}{2})=(35,2)

So, the function is maximum at x=35. Hence the vertex is (35,30)

The standard form of the parabola is,

y=a(x-h)^2+k

Where (h,k) is vertex and a is scale factor.

Since vertex is (35,30).

y=a(x-35)^2+30

The initial point is (10,2).

2=a(10-35)^2+30

-28=625a

a=-\frac{28}{625}

So the function of height is.

y=-\frac{28}{625}(x-35)^2+30

The graph of the function is shown below.

3 0
3 years ago
Can anyone help with these ? I'll give brainlyiest to anyone that can help with all of them! :) Thank you in advance .
Julli [10]

Answer:

1. (a) A function is a mapping f:x\rightarrow y where there should be different values of y for different x.

So, given ordered pairs:

(3,7), (3,8) ,(3,-2) ,(3,4) ,(3,1)

It is not a function because there are multiple y values for single x-value.

Option 2 is correct.

(b) We need to find range of the function f(x)= -4x +1

So, we have given the domain which means the value of x we will put thses given values of x to find y

Values of y is the range in a function

So, given domain is: {-5,-1,0,2,10}

When x= -5

y=-4(-5)+1=21

When x=-1

y=-4(-1)+1=5

when x=0

y=-4(0)+1=1

when x=2

y=-4(2)+1=-7

when x=10

y=-4(10)+1=39

So, Range is: {-39,-7,1,5,21}

Option 1 is correct.

(c) We have given a function v(c)=98c

Where c is the number of cup jug of milk which is 16.

Put c=16 in given function

v(c)=98\cdot 16

v(c)=1568

So, c=16, v(c)=1568 is reasonable domain and range of the function.

Option 1 is correct.

(d) We need to find the inverse of given ordered pairs (1,2) (3,4) ,(6,8)

So, the inverse means values of x and y interchange.

So, the required inverse is: (2,1) ,(4,3) ,(8,6)

Option 3rd is correct.

2. We need to find the inverse of given scatter plot in which we have to find the inverse

So, given scatter plot represents (-4,-2) ,(1,-1) ,(2,1) ,(3,2)

So, in inverse values of x and y interchange

So, inverse scatter plot should represent (-2,-4) ,(-1,1) ,(1,2), (2,3)

Attached is the scatter plot inverse

Graph 1 is correct.

3.We have been given a function:

f(x)=3x

So, f(x)=y

That is y=3x

We will find x from above equation we get

x=\frac{y}{3}

Now, interchange x and y

y=\frac{x}{3}

\Rightarrow f(x)=\frac{x}{3} is the required inverse

Therefore, option 3rd is correct.

5 0
3 years ago
What is mZDAR in circle A?
Andreas93 [3]

Answer:

68°

Step-by-step explanation:

Since, angle subtended on the circumference of the circle is half angle subtended on the center of the circle.

\therefore m\angle DBR = \frac{1}{2} \times m\angle DAR\\\\\therefore 34\degree = \frac{1}{2} \times m\angle DAR\\\\\therefore 34\degree \times 2= m\angle DAR\\\\\therefore 68\degree = m\angle DAR\\\\\therefore m\angle DAR=68\degree

5 0
3 years ago
A rabbit can run at a speed of 35 mph. This is 7/9 of the fastest speed of an elk. How fast can an elk run?
Anuta_ua [19.1K]

Answer:

45 miles per hour

Step-by-step explanation:

Divide 35 by 7 and multiply by 9

3 0
3 years ago
Read 2 more answers
Round 46.82 to the nearest ten
lord [1]
50, 6 makes the 4 go up, and you just leave the decimal numbers be

7 0
3 years ago
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