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DaniilM [7]
3 years ago
5

Christia is saving for a new tablet. It costs $90. She has already saved $23. How much more does she need to save?

Mathematics
1 answer:
Vilka [71]3 years ago
8 0

Answer:

67

Step-by-step explanation:

subtract 90 from 23 and you should have what you need to save.

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A rectangle has a perimeter of 102 ft and a length of 40 ft. Find the width of the rectangle.
vagabundo [1.1K]
The width is11ft
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What is 5,307,288 rounded the nearest 100,000
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3 years ago
F(x) =5x^2-20x+3 how to find minimum
Leya [2.2K]

Answer:

(2,-17) should be the minimum.

Step-by-step explanation:

The minimum of a quadratic function occurs at x=-\frac{b}{2a} . If a is positive, the minimum value of the function is f(-\frac{b}{2a})

f_{min}x=ax^2+bx+c occurs at x=-\frac{b}{2a}

Find the value of x=-\frac{b}{2a}

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evaluate f(2).

replace the variable x with 2 in the expression.

f(2)=5(2)^2-20(2)+3

simplify the result.

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The final answer is -17

Use the x and y values to find where the minimum occurs.

HOPE THIS HELPS!

3 0
3 years ago
Two hot air balloons are traveling along the same path away from a town, beginning from different locations at the same time. He
blagie [28]

Answer:

Henry's balloon was farther from the town at the beginning and Henry's balloon traveled more quickly.

Step-by-step explanation:

The distance of Tasha's balloon from the town is represented by the function y = 8x+ 20 ............. (1)

Where y is the distance in miles from the town and x represents the time of fly in hours.

So, at the start of the journey i.e. at x = 0, y = 20 miles {From equation (1)} from the town.

Again, Tasha's balloon is traveling at a rate of 8 miles per hour.

Now, Henry's balloon begins 30 miles from the town and is 48 miles from the town after 2 hours.

So, Henry's balloon traveling with the speed of  miles per hour.

Therefore, Henry's balloon was farther from the town at the beginning i.e. 30 miles from the town. And Henry's balloon traveled more quickly i.e at the rate of 9 miles per hour.

4 0
3 years ago
The graph below shows the hours students spent studying and their science test scores.
scoray [572]

Answer:

4.5

Step-by-step explanation:

Just took the Test

7 1
3 years ago
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