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beks73 [17]
3 years ago
12

Ty guys for helping me i need two more pls

Mathematics
2 answers:
Gnoma [55]3 years ago
6 0

Answer:

Step-by-step explanation:

No help me

den301095 [7]3 years ago
6 0
3. 36,72,72
5. 39

that should be it:)
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the cost of printing a store flyer is 440 for 1000 copies and 880 for 2000 copies. write a linear equation for modeling this dat
Anna35 [415]
Since they tell us that this is linear, having a constant rate of change, we can express this as a line:

y=mx+b, where m=slope (change in y divided by change in x) and b=y-intercept (value of y when x=0)

First find the slope, or m, which mathematically is:

m=(y2-y1)/(x2-x1), in this case:

m=(880-440)/(2000-1000)

m=440/1000

m=0.44, so far our line is:

y=0.44x+b, now we can use either data point to solve for b, I'll use (1000,440)

440=0.44(1000)+b

440=440+b

0=b, so our line is just:

y=0.44x
7 0
3 years ago
Read 2 more answers
Write the equation of the line that passes through the points (-1, 10) and (5, 2)
sdas [7]

Answer:

y=-\frac{4}{3}x +\frac{26}{3}

Step-by-step explanation:

1) if the point A has coordinates (-1;10) and the point B - (5;2), then it is possible to write common view of the required equation of the line:

\frac{x-X_A}{X_B-X_A} =\frac{y-Y_A}{Y_B-Y_A};

2) if to substitute the coordinates of A&B into the common equation, then:

\frac{x+1}{5+1} =\frac{y-10}{2-10}; \ => \frac{x+1}{6}=\frac{y-10}{-8};

3) finally, in slope-intersection form:

3y= -4x+26; ⇔ y= -4/3 x +26/3.

P.S. the suggested way of the solution is not the only one.

4 0
2 years ago
Find f(-2) if f(x)=4x^2+3x-5
valentina_108 [34]

Answer:

f(-2) = 5

Step-by-step explanation:

To find f(-2), plug in -2 wherever there is an x.

f(x) = 4x² + 3x - 5

f(-2) = 4(-2)² + 3(-2) - 5

f(-2) = 4(4) + 3(-2) - 5

f(-2) = 16 - 6 - 5

f(-2) = 10 - 5

f(-2) = 5

3 0
3 years ago
Grace's car left four skid marks on the road surface during a highway accident. Two of the skid marks were each 52 feet and two
Mashcka [7]

Answer:

The skid distance to be used is 54 feet.

Step-by-step explanation:

Given:

Four skid marks on the highway.

52,52,56,56  in feet.

We have to find the skid distance.

The skid distance that will be used to further calculate the skid speed is actually the mean skid distance.

Mean skid distance (m) :

⇒ (m)=\frac{Sum\ of \ the\ skid\ marks }{Number\ of\ skid\ marks}

⇒ (m) =\frac{52+52+56+56}{4}

⇒ (m) =\frac{216}{4}

⇒ (m)=54  feet.

So the skid distance to be used is 54 feet.

7 0
3 years ago
A body builder consumed 4,400 calories yesterday. Today, he consumed 3,600 calories. What is the percent decrease in number of c
Ierofanga [76]
22.22222222222222 is the answer you can simplify it by saying 22.222...
6 0
3 years ago
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