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3 years ago

Matching definitions: a quadrilateral with no right angles and only two pairs of congruent sides

Mathematics

1 answer:

alekssr [168]3 years ago

7 0

This could be a parallelogram , a rhombus ( if all sides are equal) or a kite.

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Find the slope of the line contains (-2, -2) and (-10, -9)

oksian1 [2.3K]

Answer:

The slope is m = 7/8 or 0.975

Step-by-step explanation:

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3 years ago

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The eighth grade math teachers decided to

Lubov Fominskaja [6]

Answer:

this would be your answer not sure if you need to round 4.085 so pretty much the answer would be 3 because you have enough for about 4 and a half

Step-by-step explanation:

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3 years ago

There are 8 students on the minibus.Five of the students are boys. What fraction of the students are boys

Nimfa-mama [501]

Since 5 of the 8 students are boys, the fraction would be 5/8. The fraction would roughly be around 63%

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3 years ago

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Please answer if you know the answer!<br><br> [Help]

Alinara [238K]

Remember that an exponent means repeated multiplication.

The exponent of 4 means you have four $\big(b^2\big)$ 's mutiplied together:

$\big(b^2\big)\cdot\big(b^2\big)\cdot\big(b^2\big)\cdot\big(b^2\big)$

And then each exponent of 2 inside means you have two $b$ 's multiplied inside each set of parentheses.:

$\big(b\cdot b\big)\cdot\big(b\cdot b\big)\cdot\big(b\cdot b\big)\cdot\big(b\cdot b\big)$

There are 8 b's there when you expand this out.

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3 years ago

Rachel hikes at a steady rate from a ranger station to a campground that is 20 mi away. After 2 h, she is 13 mi from the campgro

Angelina_Jolie [31]

Answer:

-3.5

The distance Rachel covers per hour is 3.5 miles

Step-by-step explanation:

After 2 hours, she is 13 miles from the campground.

After 4 hours, she is 6 miles from the campground.

Let x be the number of hours, y be the number of miles from the campground, then we have two points (2,13) and (4,6).

The equation of the line passing through the points $(x_1,y_1)$ and $(x_2,y_2)$ is

$y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)$

Substitute:

$x_1=2\\ \\y_1=13\\ \\x_2=4\\ \\y_2=6$

Hence,

$y-13=\dfrac{6-13}{4-2}(x-2)\\ \\y-13=-3.5(x-2)\\ \\y=-3.5x+7+13\\ \\y=-3.5x+20$

The slope of the line is $-3.5$ and it represents that the distance Rachel covers per hour is 3.5 miles.

8 0

3 years ago