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Ostrovityanka [42]
4 years ago
12

I need help with this question

Mathematics
1 answer:
pentagon [3]4 years ago
7 0

Answer:

y = -3x + 8

Step-by-step explanation:

You have to find the slope first using the formula \frac{y_{2}-y_{1} }{x_{2}-x_{1}}

Insert any two points in the equation (1,5) and (2,2) and you get -3.

Then, you do any x value times the slope (1*-3 = -3) and add so that it equals the corresponding y value (8).

This makes it y = -3x + 8.

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please help me i need to submit my math test on 9:49am please help me i really really need help please
ad-work [718]
It should be a 100 degree angle as well.
6 0
3 years ago
I need help what’s the answer to this Y = x + 1
UkoKoshka [18]

Answer: well, the answer can really be any two numbers, as long as y is one more than x. EXAMPLE: 16 = 15 + 1, 7 = 6 + 1, -54 = -55 + 1, etc

8 0
2 years ago
What is the volume of a hemisphere with a radius of 61.9 m, rounded to the nearest
ZanzabumX [31]

Answer:

The volume of the hemisphere is 496741.6 m³

Step-by-step explanation:

The volume of an sphere is given by:

V_{s} = \frac{4\pi r^{3}}{3}

In which \pi = 3.14 and r is the radius.

An hemisphere is half of an sphere, so it's volume is half the sphere's volume. So

V_{h} = \frac{V_{s}}{2} = \frac{2\pi r^{3}}{3}

In this question:

r = 61.9. So

V_{h} = \frac{2\pi (61.9)^{3}}{3} = 496741.6

The volume of the hemisphere is 496741.6 m³

8 0
3 years ago
Read 2 more answers
Passersby have taken 2 pieces of strawberry cake and 4 pieces of coconut cake from a sample tray. Based on past data, of the nex
romanna [79]

Answer:

3 pieces of strawberry cake

Step-by-step explanation:

Given data shows they took six pieces and then 9 more.

2/6 or 1/3 were strawberry cake.

1/3 of 9 = 3 pieces of strawberry cake

8 0
3 years ago
Read 2 more answers
Chris wants to fence three sides of a rectangular exercise yard for his dog. The fourth side of the exercise yard will be a side
Semmy [17]

Answer:

  • parallel: 60 ft
  • perpendicular: 30 ft
  • area: 1800 ft^2

Step-by-step explanation:

Let x represent the length of fence parallel to the house. Then the length perpendicular is ...

  y = (120 -x)/2

The area of the yard is the product of these dimensions, so is ...

  A = xy = x(120-x)/2

This is the equation of a parabola that opens downward and has zeros at x=0 and x=120. The maximum (vertex) is on the line of symmetry, halfway between these zeros, at x=60.

The fence parallel to the house is 60 feet.

The fence perpendicular to the house is (120-60)/2 = 30 feet.

The area of the yard is (60 ft)(30 ft) = 1800 ft^2.

4 0
3 years ago
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