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Reika [66]
3 years ago
11

What is the sum of negative 7 and 9?

Mathematics
2 answers:
HACTEHA [7]3 years ago
5 0

Answer:

answer is 2

Step-by-step explanation:

Deffense [45]3 years ago
3 0

Answer:

negative 16

Step-by-step explanation:

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What was Bassima’s error?
stepladder [879]

Answer:

D

Step-by-step explanation:

EVerytime you do exponents its positive

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3 years ago
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A parabola opens upward. The parabola goes through the point (3, -1), and the vertex is at (2, -2). What are the values of h and
Korolek [52]

The value of a is 1/4 and the value of h and k is (2,-7/4)

<h3>What is a Parabola ?</h3>

A parabola is a u shaped curve. It is a plane curve whose all points are at a fixed distance form a point called focus.

(x-h)² = 4a(y-k)

It is given that the parabola goes through the point (3, -1), and the vertex is at (2, -2).

Therefore
(x -2)² = 4a(y +2)

The parabola passes through the point (3,-1)

(3-2)² = 4*a(-1+2)

1 = 4 a

a = 1/4

Now to determine the value of focus point , (h,k)

(h = 2)

k = - 2 +1/4 = -7/4

Therefore The value of a is 1/4 and the value of h and k is (2,-7/4)

To know more about Parabola

brainly.com/question/4074088

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7 0
2 years ago
30 over 8 mixed fractions
Vitek1552 [10]
30/8 = 3 6/8 = 3 3/4
5 0
3 years ago
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Elimination method 3x+4y=18 9x-5y=3
tatiyna

Answer:

The solution would be (10, -3)

Step-by-step explanation:

In order to solve using elimination, multiply the top equation by -3 and then add the equations together.

-9x - 12y = -54

9x - 5y = 3

---------------

17y = -51

y = -3

Now that we have a value for y, we can put it into either equation and solve for x.

3x + 4y = 18

3x + 4(-3) = 18

3x - 12 = 18

3x = 30

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4 0
3 years ago
What is the equation of the graph below?​
aalyn [17]

Answer:

y = sin(x + 90°)

Step-by-step explanation:

cos 0 = 1

Since the point (0, 1) is on the graph, this graph is y = cos x, but that is not a choice, so this must be the graph of the sine function with a horizontal translation.

sin 0 = 0

sin 90° = 1

The translation is 90°.

Answer: y = sin(x + 90°)

3 0
3 years ago
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