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2 years ago

5

Mr Jibril wants to fill a rectangular container measuring 8 m by 5 m by 2 m completely with gravel. Gravel costs $26 per cubic m

etre. He has only $1500. How much more money will Mr Jibril need to pay for the gravel?

1 answer:

VashaNatasha [74]2 years ago

6 0

I should be any more points for this but 26 per cubic meter he only has 1500 but that’ an answer of 14,000 600 m³

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3 years ago

What is anwer this qestion and simplife it 8+6²\11 +7×2

Zigmanuir [339]

Answer:

My answer was 18.

Step-by-step explanation:

Step 1:

8+6 times 6 is 44.

Step 2:

Divide 44 by 11 and got 4.

Step 3:

Always multiplication goes first so...

7 times 2 equal 14

Step 4:

14 plus 4

Step 5:

Answer:

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4 0

3 years ago

A random sample of the amounts for 22 purchases was taken. The mean was $42.97, the standard deviation was $22.82, and the m

Illusion [34]

Answer: a) 84 and b ) 2084

Step-by-step explanation:

Given : Sample standard deviation : s= $22.82

(Population standard deviation is unknown ) , so we use t-test.

Critical value or the 95% confidence intervals : $t_{n-1}*=2.0$

Formula to find the sample size :

$n=(\dfrac{t^*\cdot s}{E})^2$

a) E = 5

$n=(\dfrac{(2)\cdot 22.82}{5})^2$

$n=(9.128)^2=83.320384\approx84$

i.e. Required sample size : n= 84

b) E = 1

$n=(\dfrac{(2)\cdot 22.82}{1})^2$

$n=(45.64)^2=2083.0096\approx2084$

i.e. Required sample size : n= 2084

8 0

3 years ago

I am very bad at math and need help with is 15÷2681

NNADVOKAT [17]

if you use a calculator the answer is 0.00559493

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4 years ago

Read 2 more answers

NEED HELP ASAP!!!

Sergeeva-Olga [200]

Answer:

(b) $P(\textrm{Event of getting a 3 in the spinner)} = \frac{11}{61}$

Step-by-step explanation:

Let E: Event of getting a 3 in the spinner.

So, the number of favorable outcomes = 11

Total number of outcomes = Number of times the outcomes is {1,2,3,4,5,6}

= {13 +10 +11+16+11} = { 61}

So, the total number of outcomes = 61

$\textrm{Probability of Event E} = \frac{\textrm{Number of favorable events}}{\textrm{Total number of outcomes}}$

So, here $P(\textrm{Event of getting a 3 in the spinner)} = \frac{11}{61}$

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3 years ago