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stich3 [128]
3 years ago
5

Find the center and the radius of the circle given this equation: 2 x + 4x + y ² -10y +20=0

Mathematics
1 answer:
NemiM [27]3 years ago
5 0

Answer:

vertex: (5/6,5)

focus: (- 2/3, 5)

axis of symmetry: y = 5

directrix: x = 7/3

Step-by-step explanation:

use the vertex form to determine the values of a.h. and k and use these values to find the direction the parabola opnes, vertex, foucs, axis of symmetry, and directrix

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Graph the line that contains the point(-7,-4) and has a slope of -2/3
hodyreva [135]

Answer:

Place one at (-7,-4) and the other at (-4,-6)

Step-by-step explanation:

6 0
3 years ago
There are 4 buses for a field trip for 4th graders and each bus accommodates the same number of students. If there are 76 studen
Nastasia [14]

Answer:

19

Step-by-step explanation:

divide 76 by 4

6 0
3 years ago
Read 2 more answers
Find the common ratio of the geometric sequence: −320,80,−20,5,…−320,80,−20,5,… A. −14−14 B. 1414 C. -4 D. 4
vredina [299]
I'm assuming the sequence is: -320, 80, -20, 5

Divide each term by the previous term to get the common ratio r

r = (term 2)/(term 1) = 80/(-320) = -1/4
r = (term 3)/(term 2) = -20/80 = -1/4
r = (term 4)/(term 3) = 5/(-20) = -1/4

No matter which term you pick (as long as it's not the first one) dividing it by the previous term leads to -1/4 or -0.25 as the common ratio

Answer: -1/4

It seems like none of the answer choices have -1/4 but it could be choice A was supposed to show "-1/4" instead of "-14"? Perhaps the division sign didn't show up for some reason?

3 0
3 years ago
Plz help me!!!!!!!!frgtr3rfgtrfe
guapka [62]

Answer:

√20

Step-by-step explanation:

√9=3

√20=4.47213595499

4.5

√27=5.1961524227

plz mark me as brainliest.

8 0
3 years ago
Can someone help me ASAP???!!
amm1812

Answer:

25x  ²−49y ²

Step-by-step explanation:

We need to find product of (5x+7)(5x−7y)

By using identity (a+b)(a−b)=a −b  ²

We have a=5x,b=7y

Thus (5x+7y)(5x−7y)=(5x)  ²−(7y)  

<em>let me know if it was helpful</em>

<em />

3 0
4 years ago
Read 2 more answers
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