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LiRa [457]
3 years ago
12

The heights of 500 students at a local school were recorded and found to be approximated by the normal curve below. Which answer

could represent the mean and standard deviation for these data?
a.
69, 6
c.
69, 3
b.
72, 4
d.
60, 3

Please select the best answer from the choices provided
Mathematics
1 answer:
larisa [96]3 years ago
5 0

Answer:

c

Step-by-step explanation:

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A bank loaned out ​$13,000​, part of it at the rate of 7% per year and the rest at 15% per year. If the interest received in one
bogdanovich [222]

Answer:

<u>Total yearly interest for the two accounts is: $1500</u>

Step-by-step explanation:

Total amount of money invested: $13000

x+y=13000,

Total yearly interest for the two accounts is: $1500

0.07*x+0.17*y=1500

x=13000-y

Substitute for x

0.07*(13000-y)+0.17*y=1500

Multiply out

910-0.07y+0.17*y=1500

Combine like terms.

0.1*y=590

Isolate y

y=$ 5900.00 at 17%

x=13000-y

Calculate x

x=$ 7100.00 at 7%

Check

0.07*7100+0.17*5900=1500

497+1003=1500

1500=1500

If this statement is TRUE and neither amount is negative then all is well

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5 0
3 years ago
This is geometry. Please help explain this.mm
Digiron [165]

Answer:

the formula is used according to the given condition.

3 0
3 years ago
Need help asappppp please
lisov135 [29]

Answer:

It would be 1/4

Step-by-step explanation:

7 0
3 years ago
If a1 = 5 and 5 and an = -3an-1 then find the value of a5. WILL GET BRAINLIEST ​
Shtirlitz [24]

Answer:

<u>405</u>

Step-by-step explanation:

<u>Given</u>

  • a₁ = 5
  • aₙ = -3aₙ₋₁

<u>Solving</u>

  • a₂ = -3a₁ = -3(5) = -15
  • a₃ = -3a₂ = -3(-15) = 45
  • a₄ = -3a₃ = -3(45) = -135
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8 0
2 years ago
Read 2 more answers
what is the tens place and the hudreds digit and the thousands digit then on the other half it what the tents digit hundredths d
Lana71 [14]

Answer: 8. Tens:4 Hundreds:5 Thousands:7

9. Tens:9 Hundreds:9 Thousands:9

10.Tenths:6 Hundredths:2 Thousandths:4

11. Tenths:7 Hundredths:3 Thousandths:6

Step-by-step explanation:

6 0
3 years ago
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