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Rom4ik [11]
2 years ago
14

Please help will give brainliest

Mathematics
2 answers:
ArbitrLikvidat [17]2 years ago
7 0

Answer:

sin <em>A </em>= 3 over 5; 3/5

cos<em> A = </em>4 over 5; 4/5

tan <em>A = </em>3 over 4; 3/4

Step-by-step explanation:

meriva2 years ago
5 0

Answer:

sorry bro i dont know

Step-by-step explanation:

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The number of text messages sent daily by a student is a poisson random variable with parameter λ=5 .in a class with 20 independ
Rudik [331]
This problem is a combination of the Poisson distribution and binomial distribution.

First, we need to find the probability of a single student sending less than 6 messages in a day, i.e.
P(X<6)=P(X=0)+P(X=1)+P(X=2)+P(X=3)+P(X=4)+P(X=5)
=0.006738+0.033690+0.084224+0.140374+0.175467+0.175467
= 0.615961

For ALL 20 students to send less than 6 messages, the probability is
P=C(20,20)*0.615961^20*(1-0.615961)^0
=6.18101*10^(-5)   or approximately
=0.00006181
7 0
3 years ago
Please help with 7a and 7b. The picture above is irrelevant to the problem. If possible explain or show your work. Thank you!!!!
ad-work [718]

If the ratio is 4:3  divide the larger can by 4  which in a)  is  25 then multiply by 3 to get surface area of smaller can which would be 75 square inches. 

In part b) do the same so 150 divided by 4 is 37.5  multiplied by 3  is 112.5 cubic inches.

It doesn't matter if it is surface area or volume you still use the same ratio of 4:3

3 0
3 years ago
3<br> x<br> +<br> y<br> =<br> −<br> 14<br> 4<br> x<br> +<br> 4<br> y<br> =<br> −<br> 16
aev [14]

Answer:

y=1

x=-5

Step-by-step explanation:

3x+y=-14

4x+4y=-16

y=-3x-14

4x+4y=-16

y=-3x-14

4(-3x-14)+4x=-16

y=-3x-14

-8x-56=-16

y=-3x-14

-8x=40

y=-3x-14

x=-5

y=1

x=-5

4 0
3 years ago
What is 36 divided by 1/4
inna [77]

Answer:

144

Step-by-step explanation:

36 ÷ 1/4

We will use copy dot flip

36 * 4

144

3 0
3 years ago
Read 2 more answers
Find the equation f(x) = a(x - h)2 + k for a parabola containing point (3, 6) and having (1, -2) as a vertex. What is the standa
nlexa [21]

f(x) = 2 x^{2} -4x

Step-by-step explanation:

Step 1 :

Given, f(x) = a(x - h)2 + k

Point on the parabola is (3, 6)

Vertex (h,k) = (1,-2)

Step 2:

Substituting the vertex in the equation we have,

f(x) = a(x-1)2 -2

Substituting the point (3,6) in this we have,

6 = a(3-1)2 - 2 => 6 = 4a -2

=>  4a = 8 => a = 2

Step 3 :

Substituting the value for a and the vertex in the given equation we have

f(x) = 2(x-1)2 -2 = 2(x2 - 2x + 1) -2 = 2x2 - 4x

=> f(x) = 2 x^{2} -4x  which is the standard form

8 0
3 years ago
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