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Mazyrski [523]
3 years ago
14

PLEASE HELP I'M IN A HURRY I'LL MARK SOMEONE THE BRAINLIEST

Mathematics
2 answers:
blagie [28]3 years ago
7 0

Answer:

cant see the pics

Step-by-step explanation:

viktelen [127]3 years ago
3 0
Yea can’t see picks
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I need help with another angles problem pls!! NEED ASAP
frozen [14]

Answer:19

Step-by-step explanation:

90 - 23 = 67, 67 = 4x - 9, 76 = 4x, 76 / 4 = 19

8 0
2 years ago
Read 2 more answers
A vendor converts the weights on the packages she sends out from pounds to kilograms (1kg approximately equals 2.2 pounds).
Alexxx [7]

Answer:

a) b) the standard deviation and the mean is affected by the conversion factor as well

c)  the mean is displaced by b units

Step-by-step explanation:

for a new variable

Y=a*X  , where a= constant (conversion factor= 1 kg/2.2 pounds)

then

p(y)= p(a*X) = p(X)

a) mean =μ=E(Y)= ∑ a*X*p(y) = a ∑ X*p(x) = a* E(X)

mean =μ=a*μₓ

b) σ² = ∑ (Y-μ)²* p(y) =  ∑ (a*X-a μₓ)²* p(y) = a²*∑ (X-μₓ)²* p(x) = a²*σₓ²

then

standard deviation = σ= √σ²=√(a²*σₓ²) = a*σₓ

standard deviation = σ= a*σₓ

then the standard deviation and the mean is affected by the conversion factor as well

c) nevertheless for a displacement b

Y₂=X + b (b= constant= 50 gr)

p(Y₂)= p(X + b) = p(X)

then

mean =μ=∑ (X-b)*p(y)=∑ X*p(x)- b ∑ p(x) = E(X) -

mean =μ=μₓ - b

then the mean is displaced by b units

7 0
3 years ago
6) Manert's grandfather put $8000 in the bank for him when he was 5. The account has been
Firdavs [7]
He earned $199,423 in interest.

His total would be $207,423.
4 0
2 years ago
Ralph sold brownies for ​$0.44 a piece in order to earn money to buy baseball cards. If the cards cost ​$0.60 per​ pack, and if
Dima020 [189]
He had to sell 16 brownies
3 0
3 years ago
Find x, if the distance end points is (x,1) and (4,4) with the total distance is the square root of 10.
Alex Ar [27]
Okay, take a look at diagram 1 (I know it's rubbish I did it on paint :D), this shows all the information you've given in the question. The two coordinates and the distance between them.

Now if we draw additional lines on this diagram, we can make a right-angled triangle (this is on diagram 2). We can also work out the lengths of the additional sides because we know both coordinates at the end-points of the additional lines.

Finally because this is a right-angled triangle, Pythagoras' theorem must apply to its sides meaning
( \sqrt{10} )^2 = (x-4)^2 + 3^2
10 = (x-4)^2 + 9
(x-4)^2 = 1 \Rightarrow x-4 = 1
therefore x=5.

3 0
2 years ago
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