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3 years ago

Pls Help will give brainliest

Mathematics

1 answer:

ANEK [815]3 years ago

7 0

The answer is a hope this helps :) :)

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There are 4,389 dogwood trees in the state park. The park workers are going to plant 342 more trees. How many trees will there b

Dmitrij [34]

Answer:

4731

Step-by-step explanation:

4,389+342=4,731

6 0

3 years ago

15 crackers weigh 69 grams. how many kilograms is this?

Marrrta [24]

Answer:

$0.069\ kg$

Step-by-step explanation:

we know that

1 kg=1,000 g

using proportion

Find out how many kilograms are 69 grams

Let

x -----> the weight in kg

$\frac{1}{1,000}\frac{kg}{g} =\frac{x}{69}\frac{kg}{g}\\\\x=\frac{69}{1,000}\\\\x=0.069\ kg$

6 0

3 years ago

A juice shop needed 360 oranges to make 40 L of fresh-squeezed juice.

Dmitriy789 [7]

Answer:

D 540 oranges is the answer

3 0

3 years ago

Read 2 more answers

A simple random sample of size nequals40 is drawn from a population. The sample mean is found to be 103.9, and the sample stand

yan [13]

Answer:

There is enough evidence to support the claim that the population mean is greater than 100

Step-by-step explanation:

Step 1: We state the hypothesis and identify the claim

$H_0:\mu=100$ and $H_1:\mu \:>\:100$ (claim)

Step 2: Calculate the test value.

$t=\frac{\bar X-\mu}{\frac{s}{\sqrt{n} } }$

$\implies t=\frac{103.9-100}{\frac{21.9}{\sqrt{40} } }=1.1263$

Step 3: Find the P-value. The p-value obtained from a calculator is using d.f=39 and test-value 1.126 is 0.134

Step 4: We fail to reject the null hypothesis since P-value is greater that the alpha level. (0.134>0.05).

Step 5: There is enough evidence to support the claim that the population mean is greater than 100.

Alternatively: We could also calculate the critical value to obtain +1.685 for $\alpha=0.05$ and d.f=39 and compare to the test-value:

The critical value (1.685>1.126) falls in the non-rejection region. See attachment.

NB: The t- distribution must be used because the population standard deviation is not known.

5 0

3 years ago

Melissa had 56 pens and 37 pencils thanks. How many pencils did Melissa have?

lorasvet [3.4K]

Just by adding both of these, pens and also pencils, these actually both signify the same word, "pencils".

We do . . . .

$\boxed{56+37=3}$

(93) should be your correct answer!

7 0

3 years ago