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2 years ago

If 2x-3=4 so x is ??wrong answer will be reported

Mathematics

2 answers:

monitta2 years ago

7 0

Answer:

2x-3=4

=2x=4+3

=2x=7

so x =7/2

Katena32 [7]2 years ago

5 0

Answer:

2x-3=4

or 2x=4+3

or 2x=7

or X=7/2

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What is 6 to 11 in the simplest form ?

earnstyle [38]

6/11 is already in the simplest form. It can be written as 0.545455 in decimal form (rounded to 6 decimal places. )

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3 years ago

The mayor of a town has proposed a plan for the construction of an adjoining bridge. A political study took a sample of 900 vote

Likurg_2 [28]

Answer:

Test statistic z = 2.3839.

P-value = 0.0086.

At a signficance level of 0.05, there is enough evidence to support the claim that the percentage of residents who favor construction is above 56%.

Step-by-step explanation:

This is a hypothesis test for a proportion.

The claim is that the percentage of residents who favor construction is above 56%.

Then, the null and alternative hypothesis are:

$H_0: \pi=0.56\\\\H_a:\pi>0.56$

The significance level is 0.05.

The sample has a size n=900.

The sample proportion is p=0.6.

The standard error of the proportion is:

$\sigma_p=\sqrt{\dfrac{\pi(1-\pi)}{n}}=\sqrt{\dfrac{0.56*0.44}{900}}\\\\\\ \sigma_p=\sqrt{0.000274}=0.017$

Then, we can calculate the z-statistic as:

$z=\dfrac{p-\pi-0.5/n}{\sigma_p}=\dfrac{0.6-0.56-0.5/900}{0.017}=\dfrac{0.039}{0.017}=2.3839$

This test is a right-tailed test, so the P-value for this test is calculated as:

$\text{P-value}=P(z>2.3839)=0.0086$

As the P-value (0.0086) is smaller than the significance level (0.05), the effect is significant.

The null hypothesis is rejected.

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3 0

4 years ago

4. Determine the amount of a $3000 investment at 9%/a compounded monthly for 6 years. [4 marks]

sweet [91]

Answer:

A = $ 5137.65 .

Step-by-step explanation:

Amount = $3000

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4 years ago

Help plz ..............

Artemon [7]

First I would find the base, which is a square so 10x10=100
then find the triangle (a=1/2bh) a=1/2(12)(10) a=1/2(120) a=60
since there are four triangle sides do 60x4 which equals 240, so then add the sides to the base 100+240=340, the answer is A

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3 years ago

The point (4, 5) is translated two units left and eight units down. What is the y-coordinate of the image?

erica [24]

Answer:

(2, -3) the y-coordinate is -3.

Step-by-step explanation:

4-2=2

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3 years ago

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If 2x-3=4 so x is ??wrong answer will be reported ​

If 2x-3=4 so x is ??wrong answer will be reported