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valentinak56 [21]
3 years ago
11

Can someone help with the first question on he sheet thanks

Mathematics
1 answer:
Novay_Z [31]3 years ago
3 0
The first figure is a rectangle.  Rectangles are known for having four right angles.  Thus, one of the angles in this figure is 90 degrees.

The second figure is an equilateral triangle.  Because all its sides have the same length, the angles are all the same.  There is a principle stating that the sum of the 3 interior angles of a triangle is 180 degrees.  Thus, the measure of one of these 3 angles is 180 degrees   /   3   =   60 degrees.
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Please help, I miss one day and I dont know how to do this
valentinak56 [21]

Answer:

X is 12 Y is 124

Step-by-step explanation:

left and right side have equal degrees of 56

so x would be 12 because you would multiply 4×12

since in total it will be 360 degrees

you add 56 and 56 together to get 112

then just subtract 112 from 360 and you get 248 then divide 248 by 2 and you have your bottom and top value of 124

4 0
3 years ago
Can someone help me on this asap
melamori03 [73]

Answer:

idk  sorry

Step-by-step explanation:

7 0
3 years ago
Which is a factor of each term of the polynomial? <br><br> (3d2 – 10d)
diamong [38]
D is common in both polynomials
4 0
3 years ago
3 + 2x = y Given x = 4 y =
wel

Answer:

y = 11

Step-by-step explanation:

Plug 4 in for x.

3 + 2(4) = y

Multiply.

3 + 8 = y

Simplify.

11 = y

7 0
2 years ago
Read 2 more answers
The amount of time a passenger waits at an airport check-in counter is random variable with mean 10 minutes and standard deviati
Stolb23 [73]

Answer:

(a) less than 10 minutes

= 0.5

(b) between 5 and 10 minutes

= 0.5

Step-by-step explanation:

We solve the above question using z score formula. We given a random number of samples, z score formula :

z-score is z = (x-μ)/ Standard error where

x is the raw score

μ is the population mean

Standard error : σ/√n

σ is the population standard deviation

n = number of samples

(a) less than 10 minutes

x = 10 μ = 10, σ = 2 n = 50

z = 10 - 10/2/√50

z = 0 / 0.2828427125

z = 0

Using the z table to find the probability

P(z ≤ 0) = P(z < 0) = P(x = 10)

= 0.5

Therefore, the probability that the average waiting time waiting in line for this sample is less than 10 minutes = 0.5

(b) between 5 and 10 minutes

i) For 5 minutes

x = 5 μ = 10, σ = 2 n = 50

z = 5 - 10/2/√50

z = -5 / 0.2828427125

= -17.67767

P-value from Z-Table:

P(x<5) = 0

Using the z table to find the probability

P(z ≤ 0) = P(z = -17.67767) = P(x = 5)

= 0

ii) For 10 minutes

x = 10 μ = 10, σ = 2 n = 50

z = 10 - 10/2/√50

z = 0 / 0.2828427125

z = 0

Using the z table to find the probability

P(z ≤ 0) = P(z < 0) = P(x = 10)

= 0.5

Hence, the probability that the average waiting time waiting in line for this sample is between 5 and 10 minutes is

P(x = 10) - P(x = 5)

= 0.5 - 0

= 0.5

3 0
3 years ago
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