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3 years ago

What are the answers to these and how do I do it

Mathematics

1 answer:

nlexa [21]3 years ago

6 0

Answer:

1. D

2.B

3.A

4.C

Step-by-step explanation:

You find where the line meets right on the “corner of the boxes” then count to the side then down or up to find the slope

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Find the height of the building below by using your knowledge of trigonometry.

Lilit [14]

Answer:

50 $\sqrt{3}$

Step-by-step explanation:

The figure represents a 30-60-90 special triangle

in this special right triangle the measure of sides lengths is represented by

a, a $\sqrt{3}$ , and 2a

The side length that sees angle measure 30 is represented by a and here we see a = 50m

The height of the building, which sees angle measure 60, is equal to

50 $\sqrt{3}$

5 0

2 years ago

What is a ratio equal to 8 to 12

olga2289 [7]

In simplest form (smallest possible answer) the ratio is equal to 2:3. But it is also equal to 4:6.

4 0

3 years ago

Find the sum of the first 6 terms of 3 - 6 + 12 + …

Natalka [10]

Answer:

$S_6 = -63$

Step-by-step explanation:

The sequence above is a geometric sequence.

The common ratio (r) = $\frac{-6}{3} = \frac{12}{-6} = -2$

The common ratio < 1, therefore, the formula for the sum of nth terms of the sequence would be: $S_n = \frac{a_1(1 - r^n)}{1 - r}$

a1 = 3

r = -2

n = 6

Plug in the values into the formula

$S_6 = \frac{3(1 - (-2^6)}{1 - (-2)}$

$S_6 = \frac{3(1 - (64)}{1 + 2}$

$S_6 = \frac{3(-63)}{3}$

$S_6 = -63$

6 0

3 years ago

karen was in a trivia contest and got 38 of the 40 questions correct. what precent of the questions did she get wrong?

iogann1982 [59]

Answer:

5 percent because it's percent is out of 100

3 0

3 years ago

Read 2 more answers

2y to the 2nd power +11y +14

goldfiish [28.3K]

$2y^2 +11y+14$ $=(2y+7)(y+2)$

Step-by-step explanation:

Given

$2y^2 +11y+14$

$=2y^2 +(7+4)y+14$

$=2y^2+7y+4y+14$

$= y(2y+7) + 2(2y+7)$

$=(2y+7)(y+2)$

3 0

3 years ago