3 years ago

X=-1/8y^2 the proabola opens:

1 answer:

4 0

I remember CUP -- concave up positive. Here we have a leading coefficient that's negative, so the cup is upside down, the parabola opens down, an arch not a bowl.

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defon

Answer:

Step-by-step explanation:

7 0

3 years ago

What is the area of a oblong with a base of 7cm and a height of 4 cm

mariarad [96]

Answer: 7*4 is 28 square centimeters...

7 0

2 years ago

If angle I is congruent to angle K, find JK.

Rudiy27

Using Isosceles triangle theorem we can determine that JI = JK
Thus
5x + 4 = 2x+7
3x = 3
x=1
Plug it back into the eqution for JK
2(1) + 7 = JK
9 = JK

5 0

3 years ago

Read 2 more answers

A farmer needs to build a goat pen. The pen will be 7 yards wide and 12 yards long. The fencing material costs $1.33 per yard. H

Oksi-84 [34.3K]

12 + 12 + 7 + 7 = 38 yards
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Answer = $50.54

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2 years ago

A circle with radius of 2cm sits inside a circle with radius of

Semmy [17]

Answer:

37.70 cm^2

Step-by-step explanation:

area of circle with radius 4 cm = (pi)r^2 = 3.14159 * (4 cm)^2 = 50.27 cm^2

area of circle with radius 2 cm = (pi)r^2 = 3.14159 * (2 cm)^2 = 12.57 cm^2

difference in areas = 37.70 cm^2

6 0

3 years ago