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emmainna [20.7K]
3 years ago
15

Value of y varies directly with x.

Mathematics
1 answer:
Rufina [12.5K]3 years ago
8 0

Step-by-step explanation:

if x=1 , y =3

if x=4 then y=3×4=12

y=12

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PLEASE HELP!! GIVEN THE FOLLOWING TABLE OF DATA FROM A QUADRATIC EQUATION
antiseptic1488 [7]
The roots: this is when y=0, so in yours there are 2 roots. Just look at the x value when y=0 and that is your roots.

Y intercept- this is when x=0, so just look at the y value below x=0 and that is the y intercept. Note the answer will probably be in the form (0,_)

Vertex=do you see a pattern? Well the vertest would be the highest or lowest point of the quadratic equation. Your vertex would be (5,-9) because just look at x=4 and x=6, bit of the y values are -8 and when you look at x=3 and x=7 they are also the same because this is a quadratic equation.

Max or min: yours is a minimum because (5,-9) is the lowest point. Every value left and right of this are higher up the graph, so this would be a minimum.

*something that will help you see this all more clearly is if you graphed this or put it into Desmos to see the vertex etc.

7 0
2 years ago
In which quadrant does the point (–10, –9) lie
ludmilkaskok [199]
The 3rd quadrant bc they are both negative points
5 0
3 years ago
In a survey asking 1200 students what they did on winter vacation, the following results were found: 45% visited family and 270
guapka [62]
Hello!

a. You have to find 45% of 1,200. To find percents, change the % to a decimal and multiply

45% = 0.45

0.45 × 1,200 = 540

\framebox {540 students visited their family}

_________________________________________________________

b. You have to find 15% of 56. To find percents, change the % to a decimal and multiply.

15% = 0.15

0.15 × 56 = 8.4

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5 0
3 years ago
2x2x2x2x2x22x2x2x2x2x22x2x2x2x2x2x2x22x2x2x2x2x2x2x22x2
statuscvo [17]

Answer:

a big number

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Please, I give 20 score. Find the volume
Elza [17]

Answer:

2388.16 in³

Step-by-step explanation:

1) find volume of cylinder

formula: πr²h

given:

π = 3.14

r = 8/2 = 4 in

h = 9 in

\pi \: r {}^{2} h

(3.14) \times (4 {}^{2} ) \times 9

3.14 \times 16 \times 9

452.16 \:  {in}^{3}

2) find volume of cuboid

formula: length × width × height

given:

length = 16 in

width = 11 in

height = 11 in

l \:  \times w \:  \times h

16 \times 11 \times 11

1936 \: in {}^{3}

total volume of figure

= volume of cylinder + volume of cuboid

= 452.16 in³ + 1936 in³

= 2388.16 in³

6 0
3 years ago
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