3 years ago

Please help I don't understand i'm in the lowest class!

Mathematics

1 answer:

lesya692 [45]3 years ago

8 0

Answer:

Step-by-step explanation:

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What is the slope of the line containing the points (3,-14) and (17,-7)

Leni [432]

Answer:

m = $\frac{1}{2}$

Step-by-step explanation:

Slope: (see image)

$\frac{-7-(-14)}{17-3}$ = $\frac{7}{14}$ = 1/2

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4 years ago

A car traveled a distance of D = 199 km (kilometers) for T = 4.2 hours at a constant rate. Use the formula

SCORPION-xisa [38]

Answer:

47.4 not rounded 47.38

Step-by-step explanation:

You divide 199 by 4.2 and get 47.4 and then you can multiply 47.38x4.2 and will get you 199

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3 years ago

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If triangle ABC is defined by the coordinated A(3,6), B(7,6), C(7,3) is dilated by a scale factor of 3, with resulting vertex A'

Anastaziya [24]

Answer:

Center of dilation → (0, 0)

Step-by-step explanation:

Vertices of a triangle ABC are A(3, 6), B(7, 6) and C(7, 3).

If this triangle is dilated by a scale factor of 'k' about the origin,

Rule for the dilation is,

(x, y) → (kx, ky)

If vertex A is dilated by a scale factor of 3 about the origin,

A(3, 6) → A'(3×3, 3×6)

→ A'(9, 18)

Therefore, center of dilation is origin (0, 0).

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3 years ago

Gary has 2 apple pies and each is divided into 8 equal parts. He serves 4/8 of the first pie. How much pie does he have left?

erik [133]

1/2 because he has 16 pieces gives 4/8 which is a half and therefore has a half left

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4 years ago

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if two angles of a triangle have measures of 42 degrees and 20 degrees what is the measure of the third

Mila [183]

Every triangle has an angle measure of 180 degrees.

so 42+20+x (where x is the measure of the third angle)=180

Combine like terms.

62+x=180

Subtract 62 from both sides

x=118.

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3 years ago