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oee [108]
3 years ago
7

(12y2+17y-4)+9y2-13y+3)

Mathematics
1 answer:
Flura [38]3 years ago
7 0
(12y^2+17y-4)+(9y^2-13y+3)=12y^2+9y^2+17y-13y-4+3=\\\\=21y^2+4y-1
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NEED HELP A triangle is cut from a rectangle. The height of the triangle is half of the unknown side length s. The area of the s
Nesterboy [21]

Answer: 14s - 7s/2 = 84

Step-by-step explanation:

Given that s is the length of the unknown side:

Area of the shaded region = 84

Area of rectangle - Area of triangle = 84

Area of rectangle = L * W

= 14 * s

= 14s

Area of triangle = ¹/₂ * base * height

= ¹/₂ * 14 * s/2

= 7s/2

Area of shaded region:

14s - 7s/2 = 84

Solving for s:

14s - 7s/2 = 84

28s - 7s = 168

21s = 168

s = 168/21

s = 8 inches

4 0
3 years ago
What best describes the expression 6 over y?
Simora [160]
6 divided by some number.
4 0
3 years ago
Helppppppppppp me please
Scilla [17]

Answer:

18.85 rounded

Step-by-step explanation:

The length of an arc depends on the radius of a circle and the central angle Θ. We know that for the angle equal to 360 degrees (2π), the arc length is equal to circumference. Hence, as the proportion between angle and arc length is constant, we can say that:

L / Θ = C / 2π

As circumference C = 2πr,

L / Θ = 2πr / 2π

L / Θ = r

We find out the arc length formula when multiplying this equation by Θ:

L = r * Θ

Hence, the arc length is equal to radius multiplied by the central angle (in radians).

7 0
3 years ago
Line passes through the points (4,-2) and the slope is 5/4 write an equation in slope intercept form
snow_tiger [21]

Answer:

y=5/4x -7

Step-by-step explanation:

Hope this helps!

8 0
2 years ago
Sandy cuts lawn in her neighborhood during the summer.When Sandy bought 4.5 gallons for gasoline for the mower,the pump showed a
Agata [3.3K]

Answer:

$4 per gallon

Step-by-step explanation:

18 divided by 4.5 = 4

3 0
3 years ago
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