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Lapatulllka [165]
3 years ago
9

Multiple choice question pls help

Mathematics
1 answer:
vekshin13 years ago
3 0
The answer is -2.5 because the slope would be (0-2)/(.8-0)=-2/.8=-2.5
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The sum of two numbers is 65. The larger number is 23 more than the smaller number . What are the numbers ?
KiRa [710]
Let's represent the smaller number by x and the larger number x+23
x+x+23=65                                      x+23=21+23=44                                                                                                        So the two numbers are 21 and 44
2x+23=65
2x+23-23=65-23
2x=42
2x/2=42/2
x=21
5 0
3 years ago
In three math tests, you score 91,95, and 88 points. How many points must you score on the fourth test to have an A average, or
gulaghasi [49]
That already is a 91.1 grade average. If you want to keep that, get a 90 and above. To find your average, add all your test scores up and divide them by how many scores there are. For instance if you add all those scores up you get 274. Divide it by 3 because there are three scores and there is your average!
5 0
3 years ago
Suppose Randolph decides that the radius of his pool will be 50 meters. What volume of water, in cubic meters, will be needed to
tangare [24]
If we assume the pool to be a semi sphere,  then the volume would be
<span>
V pool = 1/2 * [4/3*pi*r**(3)]

</span>where r is the radius = 50m

V pool = 1/2 * [4/3*3.14*50**(3)]
<span>
V pool =
261799.3878 m</span>³

If we round up >>> V water in the pool = 261800 m
³<span>


</span>
8 0
3 years ago
Quadrilaterals WXYZ and W"X"Y"Z"are similar. Identify the type of reflection
Anna71 [15]

Answer:

B) To obtain quadrilateral W'X'Y"Z" quadrilateral WXYZ is reflected across

the x-axis and dilated with a scale factor of 1/2

Step-by-step explanation:

Transformation is the movement of a point from its initial location to a new location. Types of transformation are reflection, rotation, translation and dilation.

If a point A(x, y) is reflected across the x axis the new point is at A'(x, -y)

Dilation is the enlargement or reduction in the size of a figure by a scale factor. If a point A(x, y) is dilated by a scale factor of k about the center of origin, the new point is at A'(kx, ky).

The vertex of Quadrilaterals WXYZ is at W(-6, 8), X(-2, 8), Y(-2, 2), Z(-6, 8) while the vertex of Quadrilaterals W"X"Y"Z" is at W"(-3, -4), X"(-2, -4), Y"(-1, -1), Z"(-3, -4)

If quadrilateral WXYZ is reflected across  the x-axis, the new coordinates would be at W'(-6, -), X'(-2, -8), Y'(-2, -2), Z'(-6, -8). If the quadrilateral is then dilated with a scale factor of 1/2, the new point is at W"(-3, -4), X"(-2, -4), Y"(-1, -1), Z"(-3, -4)

5 0
3 years ago
Shanice won 88 pieces of gum playing the bean bag toss at the county fair. That was 4 more than twice as many as Greg. How many
Kay [80]

Answer: 42 pieces of gum

Step-by-step explanation: 2x+4=88

4 0
3 years ago
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