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3 years ago

QUESTION 1 (3 points)

1 answer:

7 0

A) Increase. This is because the mean of the first two cars is smaller than the mean of all three cars.

b) Cannot be determined. Need more values.

c) Cannot be determined. Need more values.

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What is the sum of 6x3+8x2-2x+4 and 10x3+x2+11x+9

AleksAgata [21]

Answer:

16x³ + 9x² + 9x + 13

Step-by-step explanation:

Given

6x³ + 8x² - 2x + 4 and 10x³ + x² + 11x + 9

Sum the 2 expressions by adding like terms, that is

= (6x³ + 10x³) + (8x² + x²) + (- 2x + 11x) + (4 + 9)

= 16x³ + 9x² + 9x + 13

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2 years ago

Whats 21/35. simplified

Tems11 [23]

3/5 is 21/35 simplified

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2 years ago

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I WILL MARK YOU BRAINLIEST!

guajiro [1.7K]

Answer:

the answer is 12 inches

every inche equals 15 feet from 30/2 then divide it by the total 180/15 which equals 12

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2 years ago

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Todd bought a jetski through an interest free payment plan. The ski was $2000 and his payment were $250 each. What percent of th

stepan [7]

Answer:

12.5%

Step-by-step explanation:

$\frac{250}{2000} \times 100\%$

= 12.5%

Percentage of total cost that is the payments= 12.5%

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3 years ago

Solve each system of equations by writing a new system that eliminates one of the variables.

Rufina [12.5K]

Answer:

$x=33\\y=-41$

Step-by-step explanation:

Let:

$2x+y=25\hspace{5}(1)\\and\\4x+3y=9\hspace{5}(2)$

We need to eliminate one of the variables, so let's use elimination method. First multiply (1) by 2

$2*(1)\equiv\hspace{5}4x+2y=50$

Now subtract (2) from 2*(1) in order to eliminate x:

$2*(1)-(2)\\4x-4x+2y-3y=50-9\\-y=41$

Solving for y:

Multiplying both sides by -1

$y=-41$

Finally, replacing the value of y in (1)

$2x-41=25$

Solving for x:

add 41 to both sides:

$2x=66$

Multiply both sides by 1/2:

$x=\frac{66}{2} =33$

3 0

2 years ago