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3 years ago

Item 1 Solve the system of linear equations by graphing. 5x+5y=15 2x−2y=10

Mathematics

1 answer:

Marysya12 [62]3 years ago

6 0

After graphing both lines, we're able to tell the solution by looking at the point where the lines cross. In this case, it's at (4, -1). And so that is the solution set.

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Find the answer a b c d

Airida [17]

Answer: a

Step-by-step explanation:

$\left(\frac{f}{g} \right)(x)=\frac{f(x)}{g(x)}=\frac{\sqrt{x^{2}-1}}{\sqrt{x-1}}}=\sqrt{\frac{x^{2}-1}{x-1}}=\sqrt{\frac{(x-1)(x+1)}{x-1}}=\boxed{\sqrt{x+1}}$

8 0

1 year ago

If 18 percent of the beads in a bag are green, 25 percent are red and 40 percent are purple. What is the probablity of choosing

sweet [91]

Answer:

$P(G\ then\ R)=0.045$

Step-by-step explanation:

From the question we are told that:

Percentage of Green beads $P_g=18$

Percentage of Red beads $P_r=18$

Percentage of Purple beads $P_p=18$

Therefore

Probability of choosing a Green bead is

$P(G)=0.18$

Probability of choosing a Red bead is

$P(R)=0.25$

Generally the equation for choosing a green bead then a red bead is mathematically given by

Since Outcomes are independent

$P(G\ then\ R)=0.18*0.25$

$P(G\ then\ R)=0.045$

7 0

3 years ago

Find the equation of the line. Use exact numbers. y =

weqwewe [10]

Answer:

y = -1/3x + 5

Step-by-step explanation:

-1/3 is the slope

5 is the y-intercept

7 0

3 years ago

PLEASE HELP ASAP!!:

katrin2010 [14]

I totally typed the right answer for the wrong question sorry

3 0

3 years ago

This is Simple Interest 7 grade Ratio and Percent Problems

erastovalidia [21]

Formula: total = principal x (1 + (interest rate x loan time))

total = 1000 x (1 + (0.055 x 2))

total = 1000 x (1 + 0.11)

total = 1000 x 1.11

total = $1110

8 0

3 years ago