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1 year ago

Find the volume of the solid obtained by rotating the region enclosed by the graphs of y=9−x, y=3x−3, and x=0 about the y-axis.

Mathematics

1 answer:

lora16 [44]1 year ago

6 0

Answer:

ifvikrkivkiti

Step-by-step explanation:

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Zara has forgotten her 4-digit PIN code.

Greeley [361]

Step-by-step explanation:

1st digit : 1 / 2 / 4 / 5

4th digit : 0 / 2 / 4 / 6 / 8

Total number of sets = 4 * 10 * 10 * 5 = 2000.

7 0

1 year ago

The Upper Crust Bakery is ordering supplies. They expect to sell 8,000 loaves of bread next month. Their bread recipe, which mak

harina [27]

Answer:

6,000

Step-by-step explanation:

8,000 divided by 8 =1,000 1,000 x six equal 6,000 hope that helps

7 0

2 years ago

nora and hana are tiling two floors in their houses. by noon, nora had laid 3/4 of her tiles. hana had laid 1/2 of her tiles. th

kondaur [170]

Nora could started with 16 and Hana with 24

5 0

1 year ago

If distance between two points A(2,2) and B(x,5) is 5 units find value of x

vfiekz [6]

Answer:

X can be - 2 or 6.

Step-by-step explanation:

d=5

d=sqrt((x2-x1)^2 +(y2-y1)^2)

5=sqrt((x-2)^2 +(5-2)^2)

5^2 =(x-2)^2 +3^2

25=(x-2)^2 +9

(x-2)^2 =25-9

(x-2)^2 =16

x-2=sqrt(16)

x-2=4

x=4+2

x=6;

x-2=-4

x=-4+2

x=-2

7 0

1 year ago

Assume that you plan to use a significance level of α = 0.05 to test the claim that p1 = p2. Use the given sample sizes and numb

dezoksy [38]

Answer:

The calculated value Z = 3.775 > 1.96 at 0.05 level of significance

Null hypothesis is rejected

The Two Population proportion are not equal

Step-by-step explanation:

Given first sample size n₁ = 677

First sample proportion

$p^{-} _{1} = \frac{x_{1} }{n_{1} } = \frac{172}{677} = 0.254$

Given second sample size n₂ = 3377

second sample proportion

$p^{-} _{2} = \frac{x_{2} }{n_{2} } = \frac{654}{3377} = 0.1936$

Null Hypothesis : H₀ : p₁ = p₂.

Alternative Hypothesis : H₁ : p₁ ≠ p₂.

Test statistic

$Z = \frac{p_{1} ^{-}-p^{-} _{2} }{\sqrt{P Q(\frac{1}{n_{1} } +\frac{1}{n_{2} }) } }$

where

$P = \frac{n_{1} p_{1} + n_{2} p_{2} }{n_{1}+n_{2} } = \frac{677 X 0.254+3377 X 0.1936}{677+3377}$

P = 0.2036

Q = 1 - P = 1 - 0.2036 = 0.7964

$Z = \frac{0.254- 0.1936 }{\sqrt{0.2036 X 0.7964(\frac{1}{677 } +\frac{1}{3377 }) } }$

Z = 3.775

Critical value ∝=0.05

Z- value = 1.96

The calculated value Z = 3.775 > 1.96 at 0.05 level of significance

Null hypothesis is rejected

The Two Population proportion are not equal

3 0

1 year ago