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3 years ago

How many solutions does the system have?

Mathematics

1 answer:

tangare [24]3 years ago

4 0

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

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Find the value of the points (5,1) , (-2,-3) and (8,2m) are collinear

svp [43]

Answer:

m = 19/14 so the third point is (8, 19/7).

Step-by-step explanation:

If they are co-linear then the the slope will be equal.

The slopes of the lines are:

(difference in y coordinates) / (difference in corresponding x coordinates)

Slope between the first 2 points = (-3-1) / (-2-5) -4 / -7

= 4/7.

So if the 3 points are co-linear:

4/7 = (2m - -3) / (8 - -2)

4/7 = (2m + 3 / 10

7(2m + 3) = 40

14m + 21 = 40

14m = 19.

m = 19/14.

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3 years ago

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alex41 [277]

Answer:

The answer is B

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3 years ago

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Quinn has 6 bottles of water that each weigh 3/5 pound. What is the total weight of the water bottles? Use the number line to he

olganol [36]

Answer:

The weight of 6 bottles = $3\frac{3}{5}\ pounds$ or $3.6\ pounds$

Step-by-step explanation:

Given:

Total number of bottles = 6

Weight of each bottle = $\frac{3}{5}$ pound

To find the total weight of 6 bottles.

Solution:

We can plot the number line for six bottles.

We can the plot the weights in another number line.

Each unit represents $\frac{3}{5}$ pound of weight.

As the number of bottles increase the number of pounds of weight increase by $\frac{3}{5}$ .

Thus, weight of 6 bottles = $\frac{3}{5}+\frac{3}{5}+\frac{3}{5}+\frac{3}{5}+\frac{3}{5}+\frac{3}{5}$ $=\frac{18}{5}$ pounds

Converting fraction to mixed number.

$\frac{18}{5}=3\frac{3}{5}$ pounds

Or in decimals $\frac{18}{5}=3.6\ pounds$

Thus weight of 6 bottles = $3\frac{3}{5}\ pounds$ or $3.6\ pounds$

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4 years ago

What is 500,000-437,981 step by step

ElenaW [278]

500,000-437,981=62,019

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3 years ago

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With the cost of sugar at $3.29 per pound, how much ul 7.9 pounds cost, rounded to

riadik2000 [5.3K]

Cost of Sugar per pound = 3.29$
Cost of sugar for 7.9 pounds =
=>3.29 x 7.9
=>25.991$
Rounded to nearest 100ths place = 26.000$

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3 years ago

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