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4 years ago

(x2 - 2)(-5x2 + x) = (x2)(-5x²)+(x2)(x)+(-2)(-5x2) + (-2)(x) is an example of:

Mathematics

1 answer:

KatRina [158]4 years ago

4 0

Answer:

FOIL

Step-by-step explanation:

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7. What is the slope of the line that passes through the points (14, -18) and (5, -12)?

worty [1.4K]

Answer:

slope = $-\frac{2}{3}$

Step-by-step explanation:

Use the slope formula $m = \frac{y_2-y_1}{x_2-x_1}$ to find the slope, or $m$ . The $x_1$ and $y_1$ represent the x and y values of one point, and the $x_2$ and $y_2$ represent the x and y values of another point. So, substitute the x and y values of the points (14, -18) and (5, -12) into the formula and solve:

$m = \frac{(-12)-(-18)}{(5)-(14)}\\m = \frac{-12+18}{5-14}\\m = \frac{6}{-9} \\m = -\frac{2}{3}$

Thus, the slope is $-\frac{2}{3}$ .

5 0

3 years ago

A triangular prism has a Surface Area of 48.735 km2. The base of the prism is a triangle with a height of 3 and an unknown base.

xeze [42]

The surface area of the prism is equal to the summed up area of the faces of the triangular prism.

The bases of the prism would be triangles with an unknown base, b, and height of 3. The area of the base is calculated through the equation,
A = bh/2
where b is base and h is height. Substituting the values,
A = b(3)/2

Since there are two bases, the contribution of the triangles for the surface area is,
2A = 3b

Next we calculate for the area of the triangle sides with length equal to b (same as the base of the triangle).
Area = b(12 km)
There are 3 sides such that the total area becomes,
Area = 36b

Hence, the surface area is,
48.735 km² = 3b + (36b)

The value of b from the equation is 1.25 km

<em>ANSWER: 1.25 km</em>

4 0

4 years ago

The frequency table shows the results of tossing a ball 24 times into the four coloured sections on a carnival game Section | nu

Keith_Richards [23]

Answer:

Step-by-step explanation:

you toss the ball 24 times, and of those 24 times, it lands 12 times on the yellow section, so 12/24= 0.5

8 0

3 years ago

Mega Movies hosted a film premiere on Friday night. They charged $8 for adults and $4 for children. One hundred eight adults and

Zanzabum

Answer:

Step-by-step explanation:

14 x 4 + 137 x 8 = $1,152

hope this helps

have a great day

and a Merry Christmas UwU

3 0

3 years ago

Jose buys a wooden board that is 5 3/4 feet long the cost of the board is 0.60 perfect including tax what is the total cost in d

nignag [31]

Answer:

am a bit lost

Step-by-step explanation:

how much is the tax? that my be able for me to help you.

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3 years ago