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mario62 [17]
2 years ago
7

Sally took her stats test last week and scored a 45%. The class average was 55%with a standard deviation of 4.5. How many standa

rd deviations below the mean did Sally score? (Hint: z-score
)A) 3.33 SD above the mean
B) 2.22 SD below the mean
C) 2.22 SD above the mean
D) 3.33 SD below the mean
Mathematics
1 answer:
sesenic [268]2 years ago
5 0

Answer: A

Step-by-step explanation:

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One number is 1/2 of another number. The sum of the two numbers is 3. Find the two numbers.
Pepsi [2]

Answer:

The answer is 2 and 1

Step-by-step explanation:

1+2=3 and 1 is half of 2

8 0
3 years ago
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Thank u :)!! for the help
Simora [160]

Answer:

$0.75

Step-by-step explanation:

Consider any one of the values given in the table.

Cost of 5 tickets = $3.75

So, cost of 1 ticket

= $3.75/5

= $0.75

Verification:

Verify the answer by other values.

Cost of 10 tickets = $7.50

So, cost of 1 ticket

= $7.50/10

= $0.75

Cost of 15 tickets = $11.25

So, cost of 1 ticket

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Cost of 20 tickets = $15.00

So, cost of 1 ticket

= $15.00/20

= $0.75

The cost of 1 ticket is same in all cases.

Hence, verified.

5 0
3 years ago
Graph the linear function w(x)=3/5x+2<br> All I need is the ordered pairs/points
Anastaziya [24]

9514 1404 393

Answer:

  (0, 2), (5, 5)

Step-by-step explanation:

The w-intercept is the constant in the equation, so you know immediately that (x, w) = (0, 2) is one point on your graph.

Since the value of x is being multiplied by 3/5, it is convenient to choose an x-value that is a multiple of 5. When x=5, we have ...

  w(5) = (3/5)(5) +2 = 3+2 = 5

So, (x, w) = (5, 5) is another point on your graph.

3 0
2 years ago
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Free_Kalibri [48]

Answer:

(x-4)^2 + (y+5)^2 = 324

Step-by-step explanation:

The equation of a circle is given by the equation (x-h)^2 + (y-k)^2 = r^2, where (h,k) is the center point of the circle.

Therefore, since the center point of the circle and the radius is given, we can just plug the numbers into the formula:

(x-4)^2 + (y+5)^2 = 18^2

<u>(x-4)^2 + (y+5)^2 = 324</u>

3 0
3 years ago
A sauce recipe uses 4 cans of tomatoes in every 2 1/2 quarts. How many cans of tomatoes are used in each quart of the sauce? Ent
tresset_1 [31]
1 3/5 cans of tomatoes are used in each quart of the sauce
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3 years ago
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