3 years ago

needs 2 2/8 yards of fabric. already has 1 3/8 yards of fabric. how many yards of fabric does she need.

Mathematics

1 answer:

Harrizon [31]3 years ago

8 0

7/8 yard of fabric because if you turn them into mixed numbers you can subtract them and get 7/8

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shutvik [7]

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2 years ago

Maria compared the slope of the function f(x)=(-6x-21) to the slope of the linear function that fits the values in the table bel

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Answer:

b. both functions have a negative slope

Step-by-step explanation:

The given function is

$f(x)=-6x-21$

This function is of the form $y=mx+b$ , where $m=-6$ is the slope and $b=-21$ is the y-intercept.

We can also determine the slope of the function in the table using any two points, say $(0,7)\:and\:(2,6)$ .

The slope formula is given by,

$m=\frac{y_2-y_1}{x_2-x_1}$ .

If $(x_1,y_1)=(0,7)\:and\:(x_2,y_2)=(2,6)$ , then,

$m=\frac{6-7}{2-0}$

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We can see that both functions have a negative slope.

The correct answer is B.

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3 years ago

A path starts and ends at diffrent verticles, and is allowed to repeat vertices and edges.

almond37 [142]

Answer:

Step-by-step explanation:

True

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3 years ago

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Solve for x in the equation x squared + 11 x + StartFraction 121 Over 4 EndFraction = StartFraction 125 Over 4 EndFraction.

Ira Lisetskai [31]

Answer:

Below

Step-by-step explanation:

● x^2 + 11x + 121/4 = 125/4

Substract 125/4 from both sides:

● x^2 + 11x + 121/4-125/4= 125/4 -125/4

● x^2 + 11x - (-4/4) = 0

● x^2 +11x -(-1) = 0

● x^2 + 11 x + 1 = 0

This is a quadratic equation so we will use the determinanant (b^2-4ac)

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● b = 11

● c = 1

● b^2-4ac = 11^2-4*1*1 = 117

So this equation has two solutions:

● x = (-b -/+ √(b^2-4ac) ) / 2a

● x = (-11 -/+ √(117) ) / 2

● x = (-11 -/+ 3√(13))/ 2

● x = -0.91 or x = -10.9

Round to the nearest unit

● x = -1 or x = -11

The solutions are { -1,-11}

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3 years ago

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Answer:

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