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4 years ago

HELP!

1 answer:

5 0

3*(n+5) >= -6 =>
3n+15 >= -6
3n+21 >= 0
n >= -21/3
n >= -7
answer A.

As long as you don't multiply or divide by a negative number, you can solve these as if they are equations. If you do multiply/divide by a negative, greater thans turn in to smaller thans and vice-versa.

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Which is the measure of the reference angle for 227 degrees ?

Levart [38]

Answer:

C. 47°

Step-by-step explanation:

The angle between the terminal ray of 227° and the nearest x-axis (the negative x-axis) is ...

227° -180° = 47°

The reference angle is 47°.

_____

In mathematical terms the reference angle is the minimum of the angle modulo 180° and the supplement of that angle.

227° modulo 180° = 47°

180° -47° = 133° . . . . supplement of 47°

min(47°, 133°) = 47° . . . the reference angle

8 0

3 years ago

What is 3,348 rounded to the nearest hundred?

Kobotan [32]

Answer:

3,300

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

A bakery uses 475 pounds of apples to make 1000 apple tart each tart contains the same amount of apples how many pounds of apple

sergiy2304 [10]

1000/475
2.105263157894737 which is approximately 2.1
2.1 pounds of apples are used in each tart.

7 0

3 years ago

Read 2 more answers

Find the equation of the line passing through the point (2, -4) that is parallel to the line y=3x+2

castortr0y [4]

Answer <u>(assuming it can be put in point-slope format)</u>:

$y + 4 = 3(x-2)$

Step-by-step explanation:

You can write an equation of a line when knowing its slope and a line it passes through using point slope formula, $y-y_1 = m (x-x_1)$ .

1) First, find the slope of the equation. We know it has to be parallel to y = 3x + 2. Lines that are parallel have the same slope, thus the slope of y = 3x + 2 is the slope of the answer as well. y = 3x + 2 is in slope-intercept format, or $y = mx + b$ . The coefficient of the x term, or $m$ , represents the slope - so, the slope must be 3.

2) Now, use point-slope formula, $y-y_1 = m (x-x_1)$ , to write the equation. Substitute $m$ , $x_1$ , and $y_1$ for real values.

The $m$ represents the slope, so substitute 3 for $m$ . The $x_1$ and $y_1$ represent the x and y values of a point the line crosses through. The line crosses through (2, -4), so substitute 2 for $x_1$ and -4 for $y_1$ . This gives the following answer:

$y - (-4) = 3 (x-(2))\\y + 4 = 3(x-2)$

3 0

3 years ago

Adrian is 3 times as old as Anisah now. 4 years ago,Adrian was 28 years older than Anisah . How old will Anisah be in years' tim

Daniel [21]

Lets have Anisah be x right now.

4 years ago, Adrian was (x-4) + 28 = x+24
Right now, Adrian is 3x.

Knowing those two pieces of information, we can say that x+24 is equal to 3x-4. (This is because Adrian is 3x right now, and for 4 years ago, you subtract 4.)

x+24=3x-4
24=2x-4
28=2x
x=14

Right now Anisah is 14, and in 4 years he will be 14+4 = 18.

7 0

2 years ago