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2 years ago

Please help me with math!

Mathematics

1 answer:

Lana71 [14]2 years ago

4 0

B should be correct
Hope that helped

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I need help, I wasn't in class when we did this assignment and my teacher didn't go over it. Help the best you can :)

ipn [44]

Answer:

Step-by-step explanation:

Question 1 is 2.

Question 2. 3 3/5 + 3 3/5 = 6 6/5 which equals 7 1/5 if you add another one.

so the answer for question 2 is " 1.521.

7 0

3 years ago

Read 2 more answers

ms salinas is packing lunches for a field trip. She is placing 15 sack lunches in each of 3 ice chests. Each sack lunch contains

olganol [36]

Answer:18

Step-by-step explanation:

Because 40% of 45 is 18

3 0

2 years ago

Please please help!!!!!

algol13

Answer:

Its 58

Step-by-step explanation:

Because the bigger triangle is a dilation of the smaller one. In other words only the sides get bigger, the angles stay the same.

5 0

2 years ago

(1)Kamlesh brought a juice bottle of 5 litres. He drank 214 litres

Ainat [17]

Answer:

I think there is a typing error it should be 214 ml

Step-by-step explanation:

1 litre = 1000 ml

5 litre= 5000ml

5000- 214= 4786

hope it helps :)

5 0

2 years ago

An article claims that 12% of trees are infested by a bark beetle. A random sample of 1,000 trees were tested for traces of the

inna [77]

Answer: 0.6812

Step-by-step explanation:

Let p be the population proportion of trees are infested by a bark beetle.

As per given: p= 12%= 0.12

Sample size : n= 1000

Number of trees affected in sample = 1000

Sample proportion of trees are infested by a bark beetle. = $\hat{p}=\dfrac{127}{1000}=0.127$

Now, the z-test statistic : $z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}$

So, $z=\dfrac{0.127-0.12}{\sqrt{\dfrac{0.12\times 0.88}{1000}}}$

$z=\dfrac{0.007}{\sqrt{\dfrac{0.1056}{1000}}}\\\\\\=\dfrac{0.007}{\sqrt{0.0001056}}\\\\\\=\dfrac{0.007}{0.010276}\approx0.6812$

Hence, the value of the z-test statistic = 0.6812 .

7 0

3 years ago