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Dafna11 [192]
3 years ago
9

-3, 3, 9, 15

Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
7 0
A.)21,27,33,39
b.)
c.) arithmetic because your adding a constant number
d.) 6n-9
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Can someone please help me out!! (the photo is provided)
Black_prince [1.1K]

Answer:

area- 150 , height-12 , base-25

Step-by-step explanation:

multiply the base times height then divide by 2

3 0
3 years ago
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A family of 8 people is entitled to a ratio of 6400 grams of sugar. What will be the sugar ratio for a family of 10 people?
ryzh [129]
6400/8=800, this leaves 800g of sugar per person.
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2 years ago
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Write an equation for a parabola that has a vertex (1, 2) and passes through the point (3, -6).
Alex

Answer:

y= -2x²+4x.

Step-by-step explanation:

the common equation of the parabola is y=ax²+bx+c, where a, b, c - numbers.

1) the coordinates of the vertex are:

x_0=-\frac{b}{2a} \ and \ y_0=\frac{4ac-b^2}{4a}.

2) if according to the condition x₀=1, then b= -2a.

If according to the condition y₀=2, then   2=\frac{4ac-b^2}{4a}=\frac{4ac-4a^2}{4a}=c-a;

it means that c=a+2.

3) if b= -2a; c=a+2 and the point (3;-6) belongs to the given parabola, then it is possible to substitute them into the common equation of the parabola:

-6=3²*a-6a+a+2; ⇔ a= -2.

4) if a= -2, then b=-2a=4, and c=a+2=0.

5) if a=-2, b=4 and c=0, then the required equation of the parabola is:

y= -2x²+4x.

6 0
3 years ago
I need help with elimnation​
Ivahew [28]

Answer:

what do u mean by that? like what do you want to delete?

3 0
3 years ago
Subtract:<br>4 4/9-2 7/9<br>​
defon

The answer is

1 2/3:

3 0
3 years ago
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