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Kay [80]
3 years ago
14

Find the solutions to the equation

Mathematics
2 answers:
pantera1 [17]3 years ago
8 0

Answer:

What is the function of Y 7?

y=7 is a straight line with zero slope and y-intercept 7 as shown below. Hence its domain (all allowed x-values) is all real numbers, and its range (all allowed y-values) is only 7.

Step-by-step explanation:

valentinak56 [21]3 years ago
5 0

Answer:

the very last dot

Step-by-step explanation:

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Heelpleaaseeeeeeeee.
faust18 [17]

Answer:

c

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
A recipe requires 5 kg of cleaned, peeled, and diced cucumbers. What is the minimum amount of cucumbers to purchase if the yield
ira [324]

Answer:

4.1kg

Step-by-step explanation:

A recipe requires 5 kg of cleaned, peeled, and diced cucumbers. What is the minimum amount of cucumbers to purchase if the yield percent is 82?

The formula to solve the above question is given as:

Edible portion = Amount purchased/Yield percent

Amount purchased = Edible portion × Yield percent

Amount purchased = 5 kg × 82%

Amount purchased = 4.1kg

8 0
3 years ago
An article describes an experiment to determine the effectiveness of mushroom compost in removing petroleum contaminants from so
alexgriva [62]

Solution :

Let p_1 and p_2  represents the proportions of the seeds which germinate among the seeds planted in the soil containing 3\% and 5\% mushroom compost by weight respectively.

To test the null hypothesis H_0: p_1=p_2 against the alternate hypothesis  H_1:p_1 \neq p_2 .

Let \hat p_1, \hat p_2 denotes the respective sample proportions and the n_1, n_2 represents the sample size respectively.

$\hat p_1 = \frac{74}{155} = 0.477419

n_1=155

$p_2=\frac{86}{155}=0.554839

n_2=155

The test statistic can be written as :

$z=\frac{(\hat p_1 - \hat p_2)}{\sqrt{\frac{\hat p_1 \times (1-\hat p_1)}{n_1}} + \frac{\hat p_2 \times (1-\hat p_2)}{n_2}}}

which under H_0  follows the standard normal distribution.

We reject H_0 at 0.05 level of significance, if the P-value or if |z_{obs}|>Z_{0.025}

Now, the value of the test statistics = -1.368928

The critical value = \pm 1.959964

P-value = $P(|z|> z_{obs})= 2 \times P(z< -1.367928)$

                                     $=2 \times 0.085667$

                                     = 0.171335

Since the p-value > 0.05 and $|z_{obs}| \ngtr z_{critical} = 1.959964$, so we fail to reject H_0 at 0.05 level of significance.

Hence we conclude that the two population proportion are not significantly different.

Conclusion :

There is not sufficient evidence to conclude that the \text{proportion} of the seeds that \text{germinate differs} with the percent of the \text{mushroom compost} in the soil.

8 0
3 years ago
How many integers satisfy the inequality (x 2 – 4)(x 2 – 10) &lt; 0?
pshichka [43]
Four because i searched it up
8 0
3 years ago
Read 2 more answers
Q. root 3 - 1 / root 3 + 1<br><br> I'm getting 2- 2root 3, is it correct?
Andreyy89
Yes I think it is correct
4 0
3 years ago
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