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3 years ago

What is the answer and how did you get it ?

Mathematics

2 answers:

arsen [322]3 years ago

8 0

In order of Sam, Anna, Michelle, and Paige the decimals are .75, 0.5, 0.45, and 0.7. I got this answer by simply dividing the fractions. So for Anna you would divide 1/2 to get 0.5. And for Paige you would divide 7/10 to get 0.7. Hope this helps!!

grin007 [14]3 years ago

7 0

Total of 2.7. ---Anna had 0.5 Sam 0.75 Michelle 0.45 and Paige 0.70

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Sedbober [7]

Answer:

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Step-by-step explanation:

he sold 37 albums

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Line t passes through points (10, 1) and (2, 6). Line u is perpendicular to t. What is the slope of line u?

diamong [38]

Let's find the slope for line t first.

We can use the given points 2,6 and 10,1 to find the slope using the slope formula.

$\frac{y.2 - y.1}{x.2 - x.1} = m$

1 - 6 / 10 - 2

-5/8

The slope is -5/8.

Because we know the slope of this line, we can find the slope of the next line instantly, as they are perpendicular.

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3 years ago

Gina looks at the architectural plan of a four-walled room in which the walls meet each other at right angles. The length of one

Mice21 [21]

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3 years ago

Graph f(x) =-2x^+16x-30 by factoring to find the solutions, then find the coordinates of the vertex, and the axis of symmetry. I

inn [45]

Answer:

See explanation

Step-by-step explanation:

1. Factor the function $f(x)=-2x^2+16x-30:$

$f(x)=-2x^2+16x-30=-2x^2+6x+10x-30=-2x(x-3)+10(x-3)=-2(x-3)(x-5).$

2. The zeros (or the solutions of the equation f(x)=0) are x=3 and x=5. So? points (3,0) and (5,0) are the points on the graph that are the solutions of the equation.

3. Find the vertex:

$x_v=-\dfrac{b}{2a}=-\dfrac{16}{2\cdot (-2)}=4,\\ \\y_v=-2\cdot 4^2+16\cdot 4-30=-32+64-30=2.$

Thus, the coordinates of the vertex are (4,2) and the axis of symmetry is the vertical line that passes trough the vertex: x=4.

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3 years ago