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lions [1.4K]
3 years ago
14

What is percent change from $18 to 28$? Round to nearest tenth place​

Mathematics
1 answer:
zavuch27 [327]3 years ago
3 0

Answer:

35.2%

Step-by-step explanation:

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Rewrite the function by completing the square f(x)=x^2-4x-26
leonid [27]

Answer:

(x - 2)² - 30

Step-by-step explanation:

To complete the square

add/subtract ( half the coefficient of the x- term )² to x² - 4x

f(x) = x² + 2(- 2)x + 4 - 4 - 26 = (x - 2)² - 30

8 0
3 years ago
Construct a linear function, f(x), to model the ordered pairs (6, 2) and (7, −5). f(x) = 7x + 44 f(x) = x + 4 f(x) = −44x + 7 f(
Sonbull [250]

First we find the slope between the two given points.

m = (y2 - y1)/(x2 - x1) = (-5 - 2)/(7 - 6) = -7/1 = -7

Now we use the slope-intercept equation of a line.

y = mx + b

We use one point as x and y, and we solve for b.

2 = -7(6) + b

2 = -42 + b

b = 44

The equation is

y = -7x + 44

Answer: f(x) = -7x + 44

4 0
3 years ago
It takes buddy 15 minutes to make a halfway decent looking origami swan and Ambrose 20 minutes to do the same. Working together,
Elanso [62]
It would take them 25 minutes
4 0
3 years ago
1. Rosie orders dessert at the cafe. The total bill is $50. She tips the waiter 10%.
laila [671]

Answer:

5

Step-by-step explanation:

this means it'll be $55

3 0
2 years ago
The school cafeteria served three kinds of lunches today to 225 students. The students chose the cheeseburgers three times more
r-ruslan [8.4K]

1)

Let the number of fish sandwiches sold br represented by x

Then the number of grilled cheese sold is 2X

and the number of cheeseburgers 3(2x)

x + 2x + 3(2x) = 225

and solve

2)

Let x represent the no. of pounds of peanuts

Then x + 14 represents the no of pounds of the mixture

And

(2.25)x + (3.25)(14) = (2.65)(x + 14

and solve

3) Try on your own

plz mark me as brainliest :)

3 0
3 years ago
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