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Genrish500 [490]
3 years ago
5

Find the slope of the line segment that contains the two points (-18,-20) and (-18,-15)

Mathematics
1 answer:
KengaRu [80]3 years ago
8 0
Slope: (y2-y1)/(x2-x1)
(-15+20)/(-18+18) = 5/0
5 cannot be divided by 0
Solution: E) undefined
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McKenzie makes and sells quilts at an art fair. The materials for each quilt cos t$30.50. She sells the quilts for $80. If "n" r
Nitella [24]

Answer:

Total profits = 49.50n

Step-by-step explanation:

Cost of each quilt = $30.50

Selling price of each quilt = $80

Profits = selling price - cost price

= $80 - $30.50

= $49.50

Profits = $49.50

If n = number of quilts she sells

which expression could be used to represent her total profits?

Total profits = profits of each quilt × number of quilt sold

= $49.50 × n

= 49.50n

Total profits = 49.50n

4 0
3 years ago
Volume of prisms just 3 problems
Vladimir79 [104]

Answer:

2.  18 cubic cm.

3. 27 cubic cm

5. 90 cubic m

Step-by-step explanation:

2. Triangular prism

So, we have a triangular prism with a width of 3 cm, a height of 1.5 cm and a length of 4.  We'll take the triangle shape as the base.

Like for any prism, the volume is the base multiplied by the height.

So, the area of the base is found with the regular formula: base x height:

so, 3 x 1.5 = 4.5 sq cm for the base.

Then we multiply the base by the length to get the volume: 4.5 x 4 = 18 cubic cm.

3. Trapezoidal prism

Again, first step is to calculate the area of the trapezoid shape, then multiply by its depth.

The area of a trapezoid is calculated with the formula:

A = h/2 * (a + b) where a and b represent the short and long sides respectively.

So, for our given trapezoid:

A = 1.5/2 * (2+4) = 0.75 * 6 = 4.5 sq cm.

Then we multiply the base area by the height to get the volume:

V = 4.5 * 6 = 27 cubic cm

5. Triangular prism 2

The best way to approach this one is to consider it's a triangle prism with a height of 3 cm, and use the triangle shape (with sides of 13 and 5) as the base.

But to calculate the area of that triangle we need to find out the missing length. Using Pythagore's theorem, we can easily find the length of the other side with the hypotenuse formula:

hypotenuse² = sideA² + sideB²

In our case, we have:

13² = x² + 5²

169 = x² + 25

x² = 144

x = 12

Now we can calculate the area of the triangle easily:

A = (b x h)/2 = (5 x 12)/2 = 30 sq m

Then multiply by the thickness of the prism....

V = 30 x 3 = 90 cubic m

4 0
3 years ago
Olga tried to solve an equation step by step
LuckyWell [14K]

Answer:

made a mistake in step 3

Step-by-step explanation:

from step2; 1/3k=15 then making k the subject ,k=15*3 so the value of k will be 45

3 0
3 years ago
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One cup of sweetened condensed milk weighs 10.8 ounces.How many whole cups of sweetened condensed milk can you get from a​ 15-po
ElenaW [278]

Answer:

162 ounces

Step-by-step explanation:

conversion problem

1 cup = 10.8 ounces

15*10.8=162

5 0
2 years ago
What is the answer to -x+6-5x=14-2x
worty [1.4K]

Answer:

ok we start form thedrgvbjm,;.Step-by-step explanation:

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