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pickupchik [31]
3 years ago
15

Please who could help me

Mathematics
1 answer:
Dmitrij [34]3 years ago
6 0
41) Circumference of a circle is 2*pi*radius, or pi*diameter.
Diameter given is 0.5cm, so circumference is 0.5pi, approximately 1.57cm.

It says scale is 1 cm to 2.5ft. Use dimensional analysis. You can multiply by 2.5ft / 1 cm because it equals 1, and multiplying by 1 doesn't change the value (just the units here).

1.57cm * 2.5ft
               -------- = 3.925ft
                1 cm
C) 4 feet

42) 6% of $900 is 0.06*$900, which is $54.

$900 is including tax, so subtract the tax ($54) to get the price before tax.
$900 - $54 = $846
A) $846
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The time to complete a standardized exam is approximately normal with a mean of 70 minutes and a standard deviation of 10 minus.
AnnyKZ [126]

Answer:

Step-by-step explanation:

Given that the  time to complete a standardized exam is approximately normal with a mean of 70 minutes and a standard deviation of 10 minutes.

P(completing exam before 1 hour)

= P(less than an hour) = P(X<60)

=P(Z<\frac{60-70}{10} =-1)

=0.5-0.34=0.16

i.e. 16% of students completed the standardized exam.

7 0
3 years ago
Explain how you can solve 8x8 if you know how to multiply with 4 but not how to multiply with 8
meriva

Answer:

8×8=64

Step-by-step explanation:


6 0
3 years ago
Read 2 more answers
It takes Karl 6 hours to drive 372 miles. If he drives at a constant speed during the 6 hours, what is his unit rate? At this ra
Vikki [24]
He drives 62 miles per hour.
And yes, you are right, (496 miles after 8 hours)
5 0
3 years ago
Richard has enrolled in a 401(k) savings plan. He intends to deposit $250 each month; his employer does not contribute to his ac
astraxan [27]

Answer:

Richard will have $60,000 in his account in 20 years.

Step-by-step explanation:

(1) Multiply $250 x 12

(2) Multiply the answer of $250 x 12 which is 3000 by 20

(3) Final answer would be $60,000

7 0
3 years ago
Write the ratios for sin A and cos A
Alborosie

Hi,

Sorry this is late.

Remember: soh cah toa

sin <em>A</em>: 3/5

cos <em>A: 4/5</em>

Your answer would be A.

Have a great day!

3 0
3 years ago
Read 2 more answers
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