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elena55 [62]
3 years ago
12

8x + 3 - 2(2x + 5) pls answer

Mathematics
2 answers:
JulsSmile [24]3 years ago
4 0
4x-7. .................
snow_lady [41]3 years ago
3 0

Answer:

4x - 7

Step-by-step explanation:

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What is the equation of the quadratic graph with a focus of (3, 6) and a directrix of y = 4? f(x) = one fourth (x − 3)2 + 1 f(x)
mina [271]
 Let point (x, y) be any point on the graph, than the distance between (x, y) and the focus (3, 6) is sqrt((x - 3)^2 + (y - 6)^2) and the distance between (x, y) and the directrix, y = 4 is |y - 4|

Thus sqrt((x - 3)^2 + (y - 6)^2) = |y - 4|
(x - 3)^2 + (y - 6)^2 = (y - 4)^2
x^2 - 6x + 9 + y^2 - 12y + 36 = y^2 - 8y + 16
x^2 - 6x + 29 = -8y + 12y = 4y
(x - 3)^2 + 20 = 4y
y = 1/4(x - 3)^2 + 5

Required answer is f(x) = one fourth (x - 3)^2 + 5
8 0
3 years ago
Please help! Will give brainly, 50 points!! I'm stuck with this question and I don't get it!
pishuonlain [190]

Answer: The answer is x^2 + 4x - 3

Step-by-step explanation:

You just combine like terms, the only ones that can combine is the 6x and -4x. You just subtract them to get the answer of x^2 + 4x - 3.

7 0
3 years ago
Read 2 more answers
Find the value of x. The dot represents the center of the circle,<br>​
djyliett [7]

Answer:

x=16\ units

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

Triangle ABC and ADE are congruent triangles by SSS Theorem postulate

therefore

x=8(2)=16\ units

5 0
3 years ago
Every 4 inches in the blueprint represents 7 feet of the actual buildings One of the walls on the blueprint measures 21 inches i
tatiyna

Answer: The answer should be 36.75 inches.


Step-by-step explanation:


21 inches divided by 4 inches = 5.25

Multiply 5.25 by 7, which equals 36.75


5 0
3 years ago
What is the greatest 3 digit number which is exactly divisible by 24? Please explain.​
SOVA2 [1]

What is (41 x 24) = 984

The largest 3-digit number is 999.

999 divided by 24 is 41.625 .

To say that another way: When you have a bucket with room for 1,000 in it, you can fit 24 into it 41 times, with some space left over … but not enough to squeeze in another 24.

So the largest number less than 999 that can fit some 24s into it with no space left over is (41 x 24) = 984 .

Did this help?

Brainly, thank you, rating are all appreciated! Miss Hawaii : )

4 0
3 years ago
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