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3 years ago

Solve the system by graphing. 3x+8y=16 3x+8y=-64

Mathematics

1 answer:

Gnesinka [82]3 years ago

7 0

-3x-y=10

4x-4y=8

or

y = -3x - 10

P(0,-10) and P(-2, -4) on this line: Plot and connect with the Line.

y = x - 2

P(0, -2) and (2,0) on this line: Plot and connect with the Line.

P(-2,-4) is the ordered pair that is the solution for this system of EQs

On may CHECK by substituting x= -2 and y = -4 into the EQs of these Lines

Hope this helps!!!

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Therefore, we have y = 5x2 + 7x + 7 x = 5x3/2 + 7x1/2 + 7x−1/2. Now, since the function is a sum of power functions, we can use

garik1379 [7]

Answer:

figure it out

Step-by-step explanation:

u just have to try it out

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3 years ago

ACT mathematics score for a particular year are normally distributed with a mean of 28 and a standard deviation of 2.4 points

kompoz [17]

Answer:

a. 0.1587

b. 0.8849

c. 0.1814

Step-by-step explanation:

a. Given that $\mu=28, \ \ \sigma=2.4$

-The probability a randomly selected score is greater than 30.4 is calculated as:

$P(X>30.4)=1-P(X30.4)=1-P(z$

Hence, the probability of a score greater than 30.4 is 0.1587

b. Given that $\mu=28, \ \ \ \sigma=2.4$

The probability a randomly selected score is less than 32.8 is calculated as:

$P(X$

Hence, the probability that a randomly selected score is less than 32.8 is 0.8849

c. The probability that a score is between 25.6 and 32.8 is calculated as follows:

$P(25.6$

Hence, the probability is 0.1814

3 0

3 years ago

What is the area of a triangle whose vertices are J(−2, 1) , K(4, 3) , and L(−2, −5) ?

MArishka [77]

Hello,

J (-2,1), K (4,3), and L (-2,-5)
Area of triangle: 18.00


REMEMBER: Notice that one side is vertical. Use that side as base.


Once again, Your answer is 18.

Hope this helps

8 0

4 years ago

Read 2 more answers

A colony of 1,000 bacteria doubles in size every 14 minutes. What will the population be 42

Virty [35]

It will be 3,000 because 14 x 3 = 42 and 1,000 x 3 = 3,000

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3 years ago

Problem:

katrin2010 [14]

Answer:

Step-by-step explanation

(2/3) (60/99) = (2/99)(60/3) = (2/99)(20) = 40/99 = .040404......... So.......the sum of the first 15 digits = 7(4) + 7(0) + 0 = 28.

6 0

3 years ago