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Tresset [83]
3 years ago
10

What is the sine and cosine of A?

Mathematics
1 answer:
valkas [14]3 years ago
3 0
Sin is opposite over hypotenuse, so sin(A) = 4/5. Cos its adjacent over hypotenuse, so cos(A) = 3/5
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a particular submarine is 12 m long. A model of it was built with a scale of 1 cm: 3 m. How long is the model? Show all work.
slamgirl [31]
1cm : 3m

to get from 12m to 3m you have to divide by 4, so if:

3 x 4 = 12

then you do the same to the 1cm and you get:

1 x 4 = 4

Therefore:

1cm : 3m
4cm : 12cm

the model is 4cm

the answer is the above in bold
hope it helped :)
and sry if my explanation wasn't detailed enough or if i misunderstood the question
5 0
3 years ago
How do you do this question?
Molodets [167]

Answer:

C. y₂ = (1 + (t/n))²

Step-by-step explanation:

yₙ₊₁ = yₙ + Δt F(tₙ, yₙ)

yₙ₊₁ = yₙ + Δt yₙ

yₙ₊₁ = yₙ + (t/n) yₙ

When n=0:

y₁ = y₀ + (t/n) y₀

y₁ = 1 + (t/n)

When n=1:

y₂ = y₁ + (t/n) y₁

y₂ = 1 + (t/n) + (t/n) (1 + (t/n))

y₂ = 1 + (t/n) + (t/n) + (t/n)²

y₂ = 1 + 2(t/n) + (t/n)²

y₂ = (1 + (t/n))²

4 0
3 years ago
What equation matches this situation?
Nataly_w [17]
The first box should be correct
30 + c = 40
4 0
3 years ago
To find 19+(11+37) Lenny added 19 and 11. Then he added 37 to the sum .which property did he use
Alika [10]
He used the property of addition. Hope this helps. Please mark me as brainliest if I am right.
8 0
3 years ago
Use the distributive property to remove the parentheses<br><br>-2(4w-2v-1)
yawa3891 [41]

Answer: -8w+2v+2

Step-by-step explanation:

8 0
1 year ago
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