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4 years ago

Solve the equation for x 3x + 5 = 14

Mathematics

1 answer:

miss Akunina [59]4 years ago

7 0

Answer:

$x=3$

Step-by-step explanation:

$3x+5=14$

Subtract 5 from both sides:

$3x+5-5=14-5$

$3x=9$

Divide both sides by 3:

$\frac{3x}{3}=\frac{9}{3}$

$x=3$

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Repeating geometric patterns in a solid are called

Elodia [21]

Hi friend,
Repeating geometric patterns in a solid are called Deposition.
It is also called as desublimation.
Hope this helps you!

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4 years 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

3 years ago

What is 7y divided by 12 minus 84

Westkost [7]

Answer:

1/y -84

Step-by-step explanation:

7y/12-84

simplify= 1/y-84

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3 years ago

Does The TI-Nspire works just like the TI-84 ?

dimaraw [331]

Answer:

TI-Nspire models automatically detect most points of interest such as x and y-intercepts, maximum values, and minimum values when you are in trace mode. TI-84 Plus models require you to use a series of left and right bounds and guesses to find those same values.

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3 years ago

A pound of popcorn is popped for a class party. The popped corn is put into small popcorn boxes that each hold 120 popped kernel

Aleksandr-060686 [28]

How many boxes are there: 1450 / 120 = 145/12 =12(1/12)
12 boxes have how many popped kernels: 1/12 x 1450 = 1440
What is the remaining popped kernels: 1450-1440=10
Therefore, the last box have 10 popped kernels.

8 0

4 years ago

Read 2 more answers