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Ivenika [448]
3 years ago
13

Solve for a.

Mathematics
2 answers:
lesya692 [45]3 years ago
3 0
I am 100% sure that A equals -2.3
erica [24]3 years ago
3 0
Your answer is A....its a= -2.3
you just subtract the 0.3 from the left side and right so it cancels out on the left so a is all alone so you have your answer then.....hope that helps
You might be interested in
2.
Tanya [424]

Answer:

(A) 24 and 66

Step-by-step explanation

Complementary angles add up to 90 degrees

Supplementary angles add up to 180 degrees

(A) 24 + 60 = 90

These 2 angles sum to 90, so therefore they are complementary

(B) 56 + 124 = 180

These 2 angles sum to 180, so they are supplementary, not complementary

(C) 34 + 66 = 100; 34 + 56 = 90

While 34 and 56 sum to 90 degrees, 34 and 66 sum to 100, so this answer does not satisfy the question

(D) 56 + 124 = 180; 66 + 114 = 180

Both of these angle pairs are supplementary, so they do not satisfy the answer to the question

5 0
4 years ago
there are 25 students in math class. yesterday 6students were absent .what percent of the students were absent
kodGreya [7K]
Divide the number absent by the total and multiply by 100
P=6/25 x 100% = 24%
4 0
4 years ago
Which statement correctly explains how Mari could find the solution to the following system of linear equations using
just olya [345]

Multiply the first equation by 7 and the second equation by 2, and then add.

Step-by-step explanation:

2f - 5g=-9

-7f + 3g=4

To eliminate any variable , we need to make the coefficients same with different sign and add it

the coefficient of 'f' in first equation is 2

the coefficient of 'f' in second equation is -7

We already have different sign so we make the coefficients same

To make the coefficient same , we multiply the first equation by 7  and second equation by 2

So equation becomes

14f - 35g = -63

-14f + 6g = 8

Now when we add both equations, 'f' gets cancelled

-29g = -55

7 0
4 years ago
Identify the first step to solving the following equation
Yuliya22 [10]
Hi there!

The answer is D.
We need to isolate each square root. We can simply do this by adding \sqrt{4x + 8} to both sides of the equation.

When we isolated the square roots, our equation looks like this:
\sqrt{7x - 7} = \sqrt{4x + 8}

Now we can easily square both sides of the equation, which would have been much harder earlier.

~ Hope this helps you!
7 0
3 years ago
The point (3, 18) is on the parabola y =
liberstina [14]

Answer:

y =  {ax}^{2}  \\ 18 = (a \times  {3}^{2} ) \\ 18 = 9a \\ a = 2

8 0
3 years ago
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