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natita [175]
3 years ago
6

A set of biology exam scores are normally distributed with a mean of 70 points and a standard deviation of six points X equal th

e score on a randomly selected exam from the set find P(X< 73)
Mathematics
1 answer:
aliya0001 [1]3 years ago
8 0

Answer: .69

Step-by-step explanation:

Answer on khan

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What is the surface area of this triangular pyramid?<br> ___square inches
IrinaVladis [17]

Answer:

Surface area = 10.7 in.²

Step-by-step explanation:

Surface Area of triangular pyramid = BA + P*L

Base Area (BA) = ½*nh

b = 2 in.

h = 1.7 in.

BA = ½*2*1.7 = 1.7 in.²

Perimeter (P) = 2 + 2 + 2 = 6 in.

Slant height (L) = 3 in.

Plug in the values

Surface Area = 1.7 + ½*6*3

Surface area = 10.7 in.²

5 0
3 years ago
Janice earns 4% commission on sales. One week she sold goods worth
Sever21 [200]

Answer:

140.04

Step-by-step explanation:

(4.89+5.68+8.91+9.22+6.31)*4 = 140.04

3 0
2 years ago
Please explain so I can understand
Tju [1.3M]

Answer:

well im pretty sure its ( 1,1,3)

Step-by-step explanation:

21-1-2

4 0
3 years ago
Help please, i don’t understand this math question lol
jenyasd209 [6]

Answer:

The parallelogram's height is 2 inches

8 0
3 years ago
For the data in the table, tell whether y varies directly with x . If it does, write an equation for the direct variation. x 0,1
kakasveta [241]

Answer:

yes, y varies directly with x.

y=4x is an equation of the Direct Variation

Step-by-step explanation:

x                 y

0                0

1                 4

2                8

3                12

From the above data:

we can say that y varies directly with x.

Direct variation states that if y is expressed as the product of some constant number k and x.

i.e y=kx

Now, let any points from above data x= 2 and y= 8 to calculate the value of k,

8=2k

⇒ k=\frac{8}{2} =4

Therefore, the equation for the direct variation is, y=4x



3 0
3 years ago
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