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k0ka [10]
3 years ago
5

Plz help If a x b = a/b - 1, then 7 x 28

Mathematics
1 answer:
Gwar [14]3 years ago
3 0

Answer:

196

Step-by-step explanation:

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How many solutions does the system have?
tangare [24]

Answer: 2

Step-by-step explanation:

You are not really asked how to find the solutions, just how many there are. The easiest way to solve this is to use a program like Desmos and graph the question. I have done this for you.

Red: line -2x + 1

Blue: quadratic y = -2x^2 + 1

Answer: 2

4 0
3 years ago
Jina made 6 identical necklaces, each having beads and a pendant. The total cost of the beads and pendants for all 6 necklaces w
Nonamiya [84]

Answer:

$3.215

Step-by-step explanation:

Total cost of the beads and pendants = $33.60

Total number of necklaces = 6

Cost of beads = $14.40

To find : cost of each pendant.

Total cost of pendants = $33.69 - $14.40

= $19.29

Now, cost of each pendant = $19.29/6

= $3.215

8 0
3 years ago
Jim is running on the trail that is 5/4 of a mile long so far he has run 2/3 of the trail how many miles has he won so far
MissTica
It's tedious to type out the formulas and it just looks messy. See the attached for an answer and explanation.

4 0
3 years ago
What is the radius of the circle defined by x2 + 2x + y2 + 6y − 39 = 0?<br> 49<br> 9<br> 7<br> 81
Bond [772]

radius = 7

the equation of a circle in standard form is

(x-a)² + (y-b)² = r²

where (a, b) are the coordinates of the centre and r is the radius

To obtain this form ' complete the square ' on both the x and y terms

x² + 2(1)x + 1 + y² + 2(3)y + 9  = 39 + 1 + 9

(x+1)² + (y+3)² = 49 ← in standard form

with centre (1, 3) and r = √49 = 7



7 0
3 years ago
Read 2 more answers
Write an equation of the line, in point-slope form, that passes through the two given points.
EleoNora [17]
(-2,15)(9,-18)
slope = (-18 - 15) / (9 - (-2) = -33/11 = -3

There can be 2 answers to this question....
point slope form : y - y1 = m(x - x1)

(1) using points (-2,15)...
     y - 15 = -3(x + 2) <== one possible answer

(2) using points (9,-18)
     y + 18 = -3(x - 9) <== another possible answer
3 0
3 years ago
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