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3 years ago

If the measure of < A is 99 ° and the measure of < B is 81 ° , then < A and < B are _____.

Mathematics

2 answers:

Doss [256]3 years ago

6 0

Answer:

D.supplementary angles

Step-by-step explanation:

81+99=180

In-s [12.5K]3 years ago

6 0

D yep that look about right

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How do you write y=-6/5x-7/5 in standard form

Anvisha [2.4K]

Y=-6/5x-7/5
You add it and move it to the other side
y+6/5x=-7/5
Multiply both sides by 5
5y+6x=-7
Rearrange
6x+5y=-7

8 0

3 years ago

Use the power-reducing formulas to rewrite the expression as an equivalent expression that does not contain powers of trigonome

ratelena [41]

Answer:

$x = 0.175\cdot (1-\cos 4\cdot \theta)$

Step-by-step explanation:

Let use the following trigonometric identities:

$\sin^{2}\theta = \frac{1-\cos 2\cdot \theta}{2} \\\cos^{2}\theta = \frac{1+\cos 2\cdot \theta}{2}$

Then, the equation is simplified by substituting its components:

$x = 1.40\cdot \left(\frac{1-\cos 2\cdot \theta}{2} \right)\cdot \left(\frac{1+\cos 2\cdot \theta}{2} \right)$

$x = 0.35\cdot (1-\cos^{2}2\cdot \theta)$

$x = 0.35\cdot \sin^{2}2\cdot \theta$

$x = 0.35\cdot \left(\frac{1-\cos 4\cdot \theta}{2} \right)$

$x = 0.175\cdot (1-\cos 4\cdot \theta)$

7 0

4 years ago

Read 2 more answers

A submarine is only allowed to change its depth by rising toward the surface in 60-meter stages. It starts off at -340 meters. A

balu736 [363]

-340 + 60 = -280 meters

3 0

3 years ago

Write the linear equation in slope-intercept form and simplify.<br> –4x + 13y = 7

statuscvo [17]

$\\ \sf\longmapsto -4x+13y=7$

$\\ \sf\longmapsto 13y=4x+7$

$\\ \sf\longmapsto y=\dfrac{4x+7}{13}$

$\\ \sf\longmapsto y=\dfrac{4}{13}x+\dfrac{7}{13}$

4 0

2 years ago

Kevin has already read 45 pages in his novel for English. He can read roughly 20 pages each hour. Shania has only read 5 pages s

jolli1 [7]

Answer:

Shania has read the most pages.

Step-by-step explanation:

Following the formula y = mx + b.

Kevin already read 45 pages.

y = mx + 45

He reads 20 pages per hour, since it has per hour, we put it has "m"

y = 20x + 45

Shania already read 5 pages

y = mx + 5

Shania reads 25 pages per hour

y = 25x + 5

We need to find out how many pages they read after 20 hours, plug 20 into x.

Kevin

20(20) + 45 =

400 + 45 =

445

Shania

25(20) + 5 =

500 + 5 =

505

Shania read 60 more pages than Kevin.

4 0

4 years ago