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3 years ago

I need help with 3 and 4

Mathematics

2 answers:

Anestetic [448]3 years ago

7 0

For number 4 subtract 32.56 - 29.40 and the answer should be 3.16.

allsm [11]3 years ago

4 0

3. Part A- The gerbil weighs about 93 grams. This estimate will be less than the actual weight since the real weight is closer to 93 than to 94. In other words, I rounded down.

3. Part B- 93.19 grams
Less than the actual weight

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a figure was rotated around a vertical line segment resulting in the object below. which of the figues was rotated

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Step-by-step explanation:

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3 years ago

I need help with this problem:(

steposvetlana [31]

Answer:

Step-by-step explanation:

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3 years ago

Can someone help me with a b and c please

abruzzese [7]

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3 years ago

A bank sampled its customers to determine the proportion of customers who use their debit card at least once each month. A sampl

Zinaida [17]

Answer:

(0.084,0.396)

Step-by-step explanation:

The 99% confidence interval for the proportion of customers who use debit card monthly can be constructed as

$p-z_{\frac{\alpha }{2}} \sqrt{\frac{pq}{n} }$

$p=\frac{x}{n}$

$p=\frac{12}{50}$

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$p-z_{\frac{\alpha }{2}} \sqrt{\frac{pq}{n} }$

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$0.24-0.155832$

By rounding to three decimal places we get,

$0.084$

The 99% confidence interval for the proportion of customers who use debit card monthly is (0.084,0.396).

3 0

3 years ago

The sides of ∠A are tangent to circle k(O) with radius r. Find: r, if OA=14 dm, m∠A=90°.

Alex_Xolod [135]

Answer:

r = √98

Step-by-step explanation:

angle A and the diameter form an isosceles right triangle, with OA as the hypotenuse and r as the other sides. You can then make and solve an equation from the Pythagorean Theorem:

r^2 + r^2 = 14^2

2r^2 = 14^2

2r^2 = 196

r^2 = 98

r = √98

6 0

3 years ago

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