3 years ago

Construct the triangle ABC in which AB=7cm , BC=5cm and AC=6cm

Mathematics

1 answer:

ValentinkaMS [17]3 years ago

8 0

Draw a triangle and label the corners and sides

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What is the circumference of a circle with area 81 \pi square inches?

jok3333 [9.3K]

Area = πr² ⇒
81π = πr² ⇒ 81 = r² ⇒ r = √81 = 9 in

Circumference = 2πr = 2*9*π = 18π in

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3 years ago

Sandy bought 3/4 yard of red ribbon and 2/3 yard of white ribbon to make some hair bows.Altogether,how many yards of ribbon did

Stolb23 [73]

Sandy bought 1 and 5/12 yards of ribbon

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4 years ago

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The manager of an orchard expects about 70% of his apples to exceed the weight requirement for ""Grade A"" designation. At least

mamaluj [8]

Answer:

356

Step-by-step explanation:

We are given that p=0.7, and a 90% confidence interval. Also, we know the margin of error to be 0.04, the sample size is calculated as:

#The sample size is calculated as:

$ME=z_{\alpha/2}\sqrt\frac{p(1-p)}{n}}\\\\0.04=1.645\sqrt\frac{0.7(1-0.7)}{n}\\\\n=\frac{0.7\times 0.3}{(0.04/1.645)^2}\\\\n=355.17\approx 356$

Hence, at least 356 apples must be sampled to get a true proportion with the 4% ME.

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3 years ago

Which expressions are equivalent to 3x + 2(x − 1) − 4? A.) 3x + 2x - 2 - 4 B.) 5x - 6 C.) 3(x - 4) D.) 3(x + 2) - 6 E.) 6(x - 1)

sasho [114]

Multiplication takes precedence
Execute the command multiplication bracket

3x + 2* (x - 1) - 4 =
3x + 2* x + 2* (-1 ) - 4 =
3x + 2x - 2 - 4 =

We reduce similar words

3x + 2x - 2 - 4 =
5x - 6

Answer B

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4 years ago

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Water is flowing into a 50-gallon bathtub at a rate of 2.3 gallons per minute (gpm). To the nearest minute, how long will it tak

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It would be b. If you divide the 2

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3 years ago