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3 years ago

12x=3/2 what does x=

Mathematics

2 answers:

xz_007 [3.2K]3 years ago

5 0

<h2>>> Answer </h2>

_________

$\:$

$12x = \frac{3}{2}$

$x = \frac{3}{2} \times \frac{1}{12}$

$x = \frac{3}{24}$

$x = \bold{ \frac{1}{8}}$

Romashka-Z-Leto [24]3 years ago

5 0

answered in the attached image hope it helps 

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Gotta need answers fast like asap, it’s geometry, just fill the blanks pls

pentagon [3]

Two or more triangles are said to be congruent if and only if they have equal lengths of sides and equal measures of angles.

Thus, the required proof is as shown below:

STATEMENTS REASONS

1. ΔABC and ΔDEC with AB ≅ DE;

BC ≅ EC; <1 ≅ <2 Given

2. <1 and < ABC; < 2 and <DEC are sup Sum of angles on a straight line

3. <ABC ≅ <DEC Congruent angles of similar triangles

4. ∴ΔABC ≅ ΔDEC Side-Angle-Side (SAS) postulate

5. ∴<ACB ≅ <DCE CPCTC postulate

For more clarifications on the properties of congruent triangles, visit: brainly.com/question/1675117

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2 years ago

In a study to estimate the proportion of residents in a certain city and its suburbs who favor the construction of a nuclear pow

leva [86]

Answer:

The test statistic z = z = 2.368 >1.97 (at 5% level of significance)

we rejected null hypothesis at 5% level of significance

There is significant difference between the proportions of urban and suburban residents who favor construction of the nuclear plant.

Step-by-step explanation:

Given data In a study to estimate the proportion of residents in a certain city and its suburbs who favor the construction of a nuclear power plant, it is found that 63 of 100 urban residents

The first sample proportion $p₁ = \frac{63}{100} =0.63$

The construction of 59 of 125 suburban residents are in favor

The second sample proportion $p_{2} = \frac{59}{125} = 0.472$

Given the sample sizes are n₁ = 100 and n₂ =125

Null hypothesis(H₀):-there is no significant difference between the proportions of urban and suburban residents who favor construction of the nuclear plant.

Alternative hypothesis: H₁

There is significant difference between the proportions of urban and suburban residents who favor construction of the nuclear plant.

Level of significance:-

∝ =0.05

Tabulated value z=1.96

Test statistic

$z = \frac{p_{1}-p_{2} }{\sqrt{pq(\frac{1}{n_{1} } +\frac{1}{n_{2} } )} }$

where $p = \frac{n_{1}p_{1} +n_{2}p_{2} }{n_{1} +n_{2} }$ q = 1- p

Substitute all values in above equation

$p = \frac{100X0.63+0.472X125}{100+125} = 0.542$

q = 1-p = 1 - 0.542 = 0.458

The test statistic

$z = \frac{0.63-0.472}{\sqrt{0.542X0.458}(\frac{1}{100}+\frac{1}{125} )}$

on simplification , we get

z = 2.368 >1.97 (at 5% level of significance)

we rejected null hypothesis at 5% level of significance

Conclusion:-

There is significant difference between the proportions of urban and suburban residents who favor construction of the nuclear plant.

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3 years ago

charle [14.2K]

Answer: 1

Step-by-step explanation:

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2 years ago

1 simple geometry question attached (10 points) go! :)

Artyom0805 [142]

What is the question ??????

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3 years ago

Lucinda buys 2,4 metres of curtain material that is priced at $6.99 per metre.

Eduardwww [97]

Answer:

$16.77

Step-by-step explanation:

6.99*2.4=16.776

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3 years ago

Read 2 more answers