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Leona [35]
3 years ago
9

4y = 5x is this a direct variation?

Mathematics
1 answer:
Alenkasestr [34]3 years ago
3 0

Answer:

5/4

Step-by-step explanation:

4y = 5x Divide by 4

y = (5/4) x

To make y = kx from y = (5/4) x

k must be (5/4)

k = 5/4

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3. Fill in the blanks with center, circle, directrix, focus, line, parabola, or radius.
anzhelika [568]

A ___line___ is the set of all points that are equidistant from two points.

A ___circle___ is the set of all points that are equidistant from a given point. The given point is called the ____center____. The segment showing the distance is called the ____radius____.

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6 0
3 years ago
Read 2 more answers
Jane's basic insurance cost is $559.90 per year. Her insurance company offers a typical "safe-driver discount." What would be he
Travka [436]

559.90 - (559.9 \times 0.10) = 503.91

7 0
4 years ago
What is the surface area to volume ratio of a 5 cm cube?
joja [24]
Answer: 6/5

Explanation:
Given: 5cm cube
This means each side is 5 cm because a cube has equal sides.

Area of a square is length times width so area of 1 side of a cube:
= 5 x 5
= 25

Surface area is the area of one side of a cube times the number of sides. Now, how many sides does a cube have? 6
= 25 x 6
= 150

Surface area of a 5cm cube = 150

Volume is length times width times height:
= 5 x 5 x 5
= 125

Ratio of surface area to volume:
= 150/125
= 6/5
6 0
3 years ago
Maria had three less than twice as many points as Jane. Together they had 21 points. How many points did each girl have?
Mrrafil [7]
Maria had 13 points and jane had 8 points
8 0
3 years ago
What is the length of AC?
Alenkasestr [34]
So in order to find line AC you must find line AD and DC then plus them together.

to find AD use Pythagoras theorem
a^2 = c^2 - b^2
AD^2 = 7.5^2 - 6.5^2
AD^2 = 56.25 - 42.25
AD^2 = 14
square root both sides to get rid of the ^2
AD ≈ 3.7 or 3.74

Do the same for DC
DC^2 = 10^2 - 6.5^2
DC^2 = 100 - 42.25
DC^2 = 57.75
DC ≈ 7.6

now plus AD and DC which should give u 11.3
5 0
3 years ago
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