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3 years ago

Can someone figure this out

Mathematics

1 answer:

maria [59]3 years ago

5 0

Answer:

Option C

Step-by-step explanation:

Option C is correct one

y= -2x+1, x>1

y= -x+2, x≤1

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How do you simplify -3x²ym + 7x - 5ymx² + 16x

brilliants [131]

you cant add or subtract or multiply or divide if the variables arent the same so the simplified version of -3x²ym + 7x - 5ymx² + 16x would be
 -3x²ym - 5ymx² + 23x

3 0

3 years ago

Read 2 more answers

Suppose that the number of customers entering a department store in a day is a random variable with mean of 21 customers/day. Su

marshall27 [118]

Answer:

280 dollars a day i.belive

7 0

3 years ago

!TWELVE POINTS + BRAINLIEST ANSWER! Write the equation for an ellipse with y intercepts (0,-3) and (0, 3) and major axis of leng

Mandarinka [93]

Answer:

x²/25 + y²/9 = 1 or 9x² + 25y² = 225

Step-by-step explanation:

We have two points which is y intercepts (0,-3) and (0,3).

We know that the major axis is 2a and secondary axis is 2b

These two points are vertical top of the ellipse which they give us value of half secondary axis b = 3

The length of major axis is 2a = 10 => a = 10/2 = 5 => a = 5

The equation of the ellipse is:

x²/a² + y²/b² = 1 or b²x² + a²y² = a²b²

When we replace value of a and b we get:

x²/5² + y²/3² = 1 or 3²x² + 5²y² = 5² · 3² and finally

x²/25 + y²/9 = 1 or 9x² + 25y² = 225

God with you!!!

8 0

3 years ago

Can someone do this for me please?! Just the answer pls

Lana71 [14]

<h2>For the number 1..</h2>

<h2>angle at center = 2×angle at circumference</h2><h2>the angle at center (o) is equal to 141</h2>

therefore:

<h2>141 = 2x</h2><h2>divide both sides by 2</h2><h2>x = 70.5</h2>

option (A).

( the number 2 and 3 questions aren't correct )

6 0

2 years ago

If a club consists of 11 members, how many different arrangements of president, vice-president, and secretary are possible?

lozanna [386]

Answer: 990

Step-by-step explanation:

Because the club has 11 members, there are 11 ways to choose the president.

Because 1 person is now the president, there are only 10 people left who are candidates for vice-president. Therefore, there are only 10 ways to choose the vice-president.

Because 1 person is president and another is vice-president, out of those 11 members, there are now only 9 people who can be candidates for secretary. Therefore, there are 9 ways to choose the secretary.

Multiply the ways to choose a president, vice-president, and secretary out of 11 club members, and you get:

11 * 10 * 9 = 990 (ways)

3 0

3 years ago