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Salsk061 [2.6K]
3 years ago
12

UESTION 1

Mathematics
1 answer:
zepelin [54]3 years ago
7 0
Hello,

90=2*3²*5

Answer B if i guest well your writting
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Confused, dont know how to do it, need help
pickupchik [31]

Let C and d be the circumference and diameter of a circle, respectively. Then

C = πd

so that

π = C/d = C/12

3 0
3 years ago
HELP A FELLA OUT Please
Vanyuwa [196]

I'll write "x" instead theta.

sin x + 1 = cos(2x)

formula: cos(2x) = 1 - 2sin²x

sin x + 1 = 1 - 2sin²x

2sin²x + sin x = 0

sin x (2sin x + 1) = 0

sin x = 0 or sin x = -1/2

x1 = πk and x2 = -π/6 + 2πk and

x3 = 5π/6 + 2πk

for domain 0≤x<2π :

x1 = 0 (for k=0 in x1)

x2 = π (for k=1 in x1

x3 = 11π/6 (for k=1 in x2)

x4 = 5π/6 (for k=0 in x3).

k is an integral.

8 0
3 years ago
Suppose you know that ∠S and ∠Y are complementary, and that m∠S = 2(m∠Y) − 60°. Find m∠Y.
hodyreva [135]

Answer:

m∠Y=50°

Step-by-step explanation:

So, we know that ∠S+∠Y=90 and that m∠S=2(m∠Y)-60.

If you plug those things into the equation, you get (2[m∠Y]-60)+m∠Y=90.

Then you multiply 2 and m∠Y: 2m∠Y-60+m∠Y=90.

Combine like terms: 3m∠Y-60=90.

Then you add 60 to both sides: 3m∠Y=150

Divide 3 on both sides: 3∠Y=50

7 0
3 years ago
Solve for x.<br> ----------------------------------------------
almond37 [142]
Answer:
x= 5
Why?
Look the pic, there is the explanation

8 0
3 years ago
Which ratio is equivalent to 4 to 5?
algol [13]

Answer:

4 / 5 = 8 / 10

Step-by-step explanation:

4:5 is a ratio which can be rewritten as 4/5.

Any number that is multiplied by both the 4 and the 5 is an equivalent ratio to 4:5.

For example, if we multiply 2 by both sides, we have 8 to 10 which is equal to 4 to 5.

8 0
3 years ago
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