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2 years ago

Anelle subtracts –4 from a number. The result is 2. What is the number? –6 –2 2 6

Mathematics

2 answers:

Lynna [10]2 years ago

8 0

Answer:

the answer is 2. so it is 2

Step-by-step explanation:

2 ➕ 2 is 4

kupik [55]2 years ago

6 0

Answer:

Option D (6)

Step-by-step explanation:

6-4 is equal to 2

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Which graph shows the solution to this system of inequalities x-3y>3 2x-y<4

butalik [34]

Answer:

Step-by-step explanation:

would be graph x

3 0

2 years ago

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A Social welfare association decides to supply drinking water for the flood affected people. The drinking water is filled in a c

pickupchik [31]

Answer:

1,499 liter

Step-by-step explanation:

The rest of the question is:

each is in the shape of a cylinder of radius 21 cm and height is 50 cm.

==============================================================

The quantity of water left in the tanker after distribution

= Total quantity - Distributed quantity

Total quantity = Volume of the giving figure

= Volume of the cylinder + volume of 2 hemispheres

Volume of the cylinder of 4.2 m length and 1.2 m of a diameter.

L = 4.2 and radius = r = 0.5 * diameter = 0.5 * 1.2 = 0.6

Volume of cylinder = π r² L = (22/7) * 0.6² * 4.2 = 4.752 m³

Volume of 2 hemispheres = 2*0.5 * (4/3) π r³ = (4/3) * (22/7) * 0.6³

=792/875 m³

Total volume = 4.752 + 792/875 = 198/35 ≈ 5.657 m³

Distributed quantity = 60 times the volume of a cylinder of radius 21 cm and height is 50 cm

Distributed quantity = 60 * π r² L = 60 * (22/7) * 21² * 50 = 4,158,000 cm³

Since 1 m³= 1,000,000 cm³

Distributed quantity = 4,158,000 cm³ = 4.158 m³

The quantity of water left in the tanker after distribution =

= 198/35 - 4.158 ≈ 1.499 m³

Since 1 m³= 1,000 liter

The quantity of water left in the tanker after distribution =

= 1.499 m³ = 1.499 * 1000 = 1,499 liter

7 0

3 years ago

Read 2 more answers

Please help me thank you!

Mazyrski [523]

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3 0

2 years ago

For what value of x is the rational expression below undefined?<br><br> 3x+15/6-x

Paha777 [63]

Let the function be (3x+15)/(6-x) then the value of x exists at -5.

<h3>What is the value of x?</h3>

Given: Rational Expression (3x+15)/(6-x)

To find the value of x when given a rational expression equivalent to 0.

To estimate the value of x, convey the variable to the left side and convey all the remaining values to the right side. Simplify the values to estimate the result.

Consider, (3x+15)/(6-x) = 0

3x + 15 = 0(6-x)

3x + 15 = 0

Subtract 15 from both sides of the equation, e get

3x + 15 - 15 = 0 - 15

simplifying the above equation, we get

3x = 0 - 15

3x = -15

Divide both sides by 3, then we get

x/3 = -15/3

x = -5

Therefore, the value of x exists at -5.

To learn more about the value of x refer to: brainly.com/question/11874663

#SPJ9

5 0

1 year ago

A manufacturing plant uses light bulbs whose life spans are normally distributed, with mean and standard deviation equal to 500

meriva

Answer:

602.50 hours

Step-by-step explanation:

Given that a manufacturing plant uses light bulbs whose life spans are normally distributed, with mean and standard deviation equal to 500 and 50 hours,

It was decided to replace the bulbs so that no more than 2% of the bulbs to burn out between replacement periods

i.e. we have to construct 98% confidence interval right tailed to get this.

Z value is 2.05 for this (Upper tailed 0.98 probability)

Hence margin of error $= 2.05 (std dev)\\=2.05(50)\\= 102.50$

The upper bound for this would be

$500+102.50 =602.50$

So to keep below 2% the bulbs to burn out it should be replaced before 602.50 hours.

4 0

2 years ago