Answer:
99 minutes, or an hour and 39 minutes.
Step-by-step explanation:
It takes Emma 18 minutes to do 14 pages. That means that we can set up a proportion, where Emma uses 18 minutes to do 14 pages, which is equal to x minutes per page!
14x = 18
7x = 9
x = 9/7
So, each page takes 9/7 minutes for Emma to finish.
She will do 77 pages. 77 * (9/7) = 11 * 9 = 99.
So, it will take Emma 99 minutes, or an hour and 39 minutes, to type and spell check 77 pages.
Hope this helps!
Answer:
2x+18+5x-9
2x+5x18-9
<u>7</u><u>x</u>+<u>9</u>
7. 7
x= 1.4
hope it helps
Answer:
-8
4
-15
-8
7
42
-60
15
-9
-12
Step-by-step explanation:
-2 - 6 = -8
8 + (-4) = 4
10 + (-25) = -15
-15 - (-7) = -8
-6 - (-13) = 7
-7 x -6 = 42
-12 x 5 = -60
60/4 = 15
72/-8 = -9
48/-4 = -12
The equation of a parabola that has intercepts of x=-2 and x=6 and passes through point (8,6) is f(x) = 3/10(x+2)(x-6)
<h3>Equation of a parabola</h3>
The standard equation of a parabola is in the form f(x) = (x-a)(x-b)
where a and b are the intercepts of the graph. Given the parabola that has intercepts of x=-2 and x=6, the resulting equation will be:
f(x) = a(x-(-2))(x-6)
f(x) = a(x+2)(x-6)
If the parabola passes through (8, 6), then;
6 = a(8+2)(8-6)
6 = a(20)
a = 6/20
a = 3/10
Substitute
f(x) = 3/10(x+2)(x-6)
Hence the equation of a parabola that has intercepts of x=-2 and x=6 and passes through point (8,6) is f(x) = 3/10(x+2)(x-6)
Learn more on equation of a parabola here: brainly.com/question/4061870
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