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4 years ago

I could use you’re help you know :) .

Mathematics

2 answers:

stealth61 [152]4 years ago

7 0

Answer:

3/4

Step-by-step explanation:

5/6×9/8×4/5 = 3/4

volume if the box is all of those 3 multiplied toghather. if you don't know the formula then google it

Dovator [93]4 years ago

3 0

Answer:

$\frac{3}{4\\}$ cubic metre

Step-by-step explanation:

v=l x w x h

v= $\frac{5}{6}$ x $\frac{9}{8}$ x $\frac{4}{5}$

v=9/12=3/4

You might be interested in

185g shared to the ratio of 2:3

Yuliya22 [10]

The smaller share is 2/(2+3)*185 g = 74 g.
The larger share is 185 -74 g = 111 g.

8 0

3 years ago

Molly went shopping to buy jewelry. All of the pairs of earrings, e, cost $15.50 and the necklaces, n, cost $40.50. If she spend

Ostrovityanka [42]

Answer:

15.50x5+40.50x2 = $158.50

Step-by-step explanation:

She will buy 5 earrings and 2 pairs of necklaces

(15.50 x 5) + (40.50 x 2)

Hope this helps

Mark as brainllest

6 0

3 years ago

A circle centered at the origin contains the point

valentina_108 [34]

Answer:

Yes, the distance from the origin to the point (8,√17) is 9 units.

Step-by-step explanation:

The equation of a circle centered at the origin with radius , r has equation:

${x}^{2} + {y}^{2} = {r}^{2}$

Since the circle passes through (0,-9), the radius is 9 units because (0,-9) is 9 units from the origin.

We substitute the radius to get:

${x}^{2} + {y}^{2} = {9}^{2}$

${x}^{2} + {y}^{2} = 81$

If (8,√17) lies on this circle, then it must satisfy this equation:

${8}^{2} + { (\sqrt{17} )}^{2} = 64 + 17 = 81$

This is True.

This means the distance from (8,√17) is 9 units from the origin.

6 0

3 years ago

Today only, a table is being sold for $459. This is 68% of its regular price. What was the price yesterday?

lianna [129]

$459+68%

68% of $459 is $312.12

$459+312.12=

$771.12

So the price of the table the day before should be $771.12

5 0

3 years ago

Read 2 more answers

Brand X batteries have a mean life span of 102 hours, with a standard deviation of 6.8 hours. Brand Y batteries have a mean life

Studentka2010 [4]

Answer:

Step-by-step explanation:

Hello!

X₁: Life span of a battery of Brand X

X₁~N(μ₁;σ₁²)

μ₁= 102hours

σ₁= 6.8hours

X₂: Life span of a battery of Brand Y

X₂~N(μ₂;σ²)

μ₂= 100hours

σ₂= 1.4hours

To complete the first two sentences, you have to use the empirical rule:

μ±δ= 68% of the distribution

μ±2δ= 95% of the distribution

μ±3δ= 99% of the distribution

1. About 68% of brand x’s batteries have a lifespan between 95.2 and 108.8 hours.

μ₁±σ₁= 102 ± 6.8= 95.2; 108.8

2. About 68% of brand y’s batteries have a lifespan between 98.6 and 101.4 hours.

μ₂±σ₂= 100 ± 1.4= 98.6; 101.4

3. The life span of brand Y ’s battery is more likely to be consistently close to the mean.

The standard deviations show you the dispersion of the distribution. A low standard deviation indicates that the values are close to the mean. A high standard deviation indicates that the values are further away the values are from the mean.

The standard deviation for the X batteries is σ₁= 6.8hours and the Y batteries are σ₂= 1.4hours since the standard deviation for the Y batteries is less than the standard deviation for the X batteries, you'd expect that the life span of the Y batteries will be closer to the mean than the life span of the X batteries.

I hope it helps!

4 0

3 years ago