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3 years ago

5

The picture shows a feeding trough that is shaped like a right prism. (Picture is shown at the bottom!!)

1 answer:

AlexFokin [52]3 years ago

4 0

Height of the trapezoids = sqrt (17^2 - 8^2) = 15cms
base = 19 cms

(b) area of each trapezoid = 15/2 (35 + 19) = 405 cm^2

Total area painted blue = 2*405 = 810 cm^2

(c) length of the edges of one trapezoid = 35 + 19 + 2(17) = 88 cms
So one piece of sandpaper ( can sand up to 80 cm) will not be enough to sand all of the edges.

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Harlamova29_29 [7]

Step-by-step explanation:

1. -9x - 3 - 3 + 2x

-7x - 6

3. 3 - 4x - 7x - 2

-11x - 1

4. 5x - 1 + 3 + 2x

7x + 2

4 0

3 years ago

PLEASE HELP!!!!!!

quester [9]

B

First you have to change 2 1/2 into 5/2

To multiply fractions use the method
Keep Change Flip

5/2 x 3/1 =15/2

Which simplifies to 7 1/2

6 0

3 years ago

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What math operation determines the pattern? 48, 3, 45, -42?

34kurt

Just subtract the following number from the preceding one.
48- 3= 45
3- 45= -42.

8 0

3 years ago

Graph the line with slope <br> 2<br> 5<br><br> and <br> y<br><br> -intercept <br> −<br> 7<br><br> .

tia_tia [17]

Answer:

See attachment

Step-by-step explanation:

We want to graph the line with slope

$m = \frac{2}{5}$

and y-intercept ,

$b = - 7$

The equation of this line is

$y = \frac{2}{5}x - 7$

Starting at -7 on the y-axis, we run 5 units and rise 2 units right.

Then draw a line through the y intercept and the new point

The graph is shown in the attachment.

3 0

3 years ago

2.2y−(y−7.3)÷10=0.1<br><br>PLEASE HELP!<br><br>Answer:

Naddik [55]

Answer:

y = -0.525

Step-by-step explanation:

2.2y - y + 7.3 / 10 = 0.1

1.2y + 0.73 = 0.1

1.2y = -0.63

y = -0.525

6 0

3 years ago

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