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3 years ago

Please help as soon as possible

Mathematics

1 answer:

lutik1710 [3]3 years ago

7 0

Answer:

96/g

Step-by-step explanation:

pls mark this as the brainliest answer im trying to lvl up

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What is closed and not closed please explain, thank u

Nataly_w [17]

Answer:

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Step-by-step explanation:

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5 0

3 years ago

Write an equation for the line parallel to the given line that contains C(4,8);y=-3x+4

Brrunno [24]

Parallel line means they have the same slope
y = mx + b
where m = slope
y = -3 + 4
here the slope is negative 3
y = -3x + b
plug in (4, 8)
8 = -3(4) + b
b = 8 + 12
b = 20

The answer is y = -3x + 20

6 0

3 years ago

What is the slope of a line containing (4,6) and (0,8)?

AlladinOne [14]

Answer:

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

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Slope Formula: $m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Point (4, 6)

Point (0, 8)

Step 2: Find slope m

Substitute: $m=\frac{8-6}{0-4}$
Subtract: $m=\frac{2}{-4}$
Simplify: $m=\frac{-1}{2}$

3 0

3 years ago

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Can someone help me pls

Arturiano [62]

Answer:

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Step-by-step explanation:

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8 0

3 years ago

Prove that: cos20°cos40°cos80°=1/8

Naya [18.7K]

Answer:

see explanation

Step-by-step explanation:

Using the double angle identity for sine

sin2x = 2sinxcosx

Consider left side

cos20°cos40°cos80°

= $\frac{1}{2sin20}$ (2sin20°cos20°)cos40°cos80°

= $\frac{1}{4sin20}$ (2sin40°cos40°)cos80°

= $\frac{1}{4sin20}$ (sin80°cos80° )

= $\frac{1}{8sin20}$ (2sin80°cos80° )

= $\frac{1}{8sin20}$ . sin160°

= $\frac{1}{8sin20}$ . sin(180 - 20)°

= $\frac{1}{8sin20}$ . sin20°

= $\frac{1}{8}$ = right side , thus proven

7 0

3 years ago

Read 2 more answers

Please help as soon as possible ​

Please help as soon as possible