2 years ago

If sin x = -1/2, and 270° < x < 360°, what is cos(x - 30°)?

Mathematics

1 answer:

Butoxors [25]2 years ago

4 0

Answer:

x = -30

cos(x - 30) = ½

Step-by-step explanation:

Look at the picture

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Tiana is a chemist who is making a chemical to add to swimming pools in order to make the water safer. She mixed two solid subst

Feliz [49]

Answer:

The chemically charges bionic dust formed by superconductor

Step-by-step explanation:

8 0

2 years ago

Georgia has a budget of $8 for a new notebook. She wants to spend within $5 of her budget, so she uses the equation 5 = |8 – x|

siniylev [52]

Answer:

Minimum: 3

Maximum: 13

Step-by-step explanation:

Georgia uses the equation

5 = |8 – x| to find the maximum and minimum values.

We solve the equation for x.

$5 = |8 - x|$

By the definition of the absolute value function, we must have:

$- 5 = 8 - x \: or \: 5 = 8 - x$

We subtract 8 from both sides to get:

$- 5 - 8 = - x \: or \: 5 - 8 = - x$

$- 13 = - x \: or \: - 3 = - x$

This simplifies to:

$13 = x \: or \: 3 = x$

Therefore the minimum value is 3 and maximum is 13

5 0

2 years ago

1<br> Determine the number of solutions for the equation.<br> - 3(42x +46) = -15(-22-9x)

kkurt [141]

Answer:

x=-52/29

Step-by-step explanation:

-3(42x+46)=-15(-22-9x)

-126x-138=330+135x

-126x-135x-138=330

-261x-138=330

-261x=330+138

-261x=468

x=468/-261

x=-52/29

6 0

2 years ago

Find the 92nd term of the arithmetic sequence 11, 19, 27,

fgiga [73]

Answer:

739

Step-by-step explanation:

a sub 92 = 11 + (92 - 1) * 8

a sub 92 = 11 + 728

a sub 92 = 739

5 0

2 years ago

Simplify 4 over 7 divided by 3 over negative 8

Stolb23 [73]

-1 5/11

Step-by-step explanation:

Dividing fractions is easy as pie, flip the second one over then multiply

6 0

2 years ago