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Anna71 [15]
3 years ago
11

Solve this equation: 2cosx+5=4

Mathematics
2 answers:
erma4kov [3.2K]3 years ago
8 0
\frac{2 \pi }{3}
tangare [24]3 years ago
5 0

Answer:

2pi/3 and 4pi/3

Step-by-step explanation:

Solve for cosine and you will get cosx=-1/2. Using the unit circle find every point where the x value = -1/2 (since cosine is x). You will find that the angles where x = -1/2 are 2pi/3 and 4pi/3

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Use the GCF to find a new sum for 54+48.<br> _ ( _ + _ )
Maru [420]

Answer: GCF is 6

Step-by-step explanation:

Sort them out on paper

5 0
3 years ago
Is 14.5℅ equivalent to 14.5
vova2212 [387]
No, it actually is not!

If you are to change it to a number, 

14.5% = .145
7 0
3 years ago
Read 2 more answers
Raheem made 14 ounces of curry sauce which contained (among other things), 3.25 ounces of spices. He wants to make a larger batc
wolverine [178]

Answer:

19.5 ounces of spices

Step-by-step explanation:

Raheem made 14 ounces of curry sauce which contained (among other things), 3.25 ounces of spices. He wants to make a larger batch for a family dinner and decides he will need a total of 84 ounces of sauce altogether. How many ounces of spices will he need to complete his recipe?

The question above is calculated as:

14 ounces of sauce = 3.25 ounces of spices

84 ounces of sauce = x ounces of spices

Cross Multiply

14x = 84 × 3.25

x = 84 × 3.25/14

x = 19.5 ounces of spices

Hence, for 84 ounces of curry sauce he would need 19.5 ounces of spices

6 0
2 years ago
How do you solve y=5/8b + 10 for b
joja [24]

Answer:

b = \frac{8y-80}{5}

Step-by-step explanation:

Given

y = \frac{5}{8} b + 10

Multiply through by 8 to clear the fraction

8y = 5b + 80 ( subtract 80 from both sides )

8y - 80 = 5b ( divide both sides by 5 )

\frac{8y-80}{5} = b

5 0
3 years ago
The image below shows two parallel lines cut by a transversal. What is the value of x?
Nina [5.8K]
Since the two lines are parallel and it is cut by a transversal,
75+X+5=180
=>80+X=180
=>X=180-80
==>X=100
Hope this helps u...!!!!!
3 0
3 years ago
Read 2 more answers
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