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3 years ago

A quality control manager at a factory selects 7 light bulbs at random for inspection out of every

Mathematics

1 answer:

shutvik [7]3 years ago

6 0

Answer:

350 lightbulbs

Step-by-step explanation:

First find the number of batches made.

20,000 divided by 400 = 50

This means that there are 50 batches in which 7 light bulbs will be selected at random to be inspected.

We can multiply the number of batches to the lightbulbs being inspected.

50 times 7 = 350

Therefore, 350 lightbulbs will be inspected.

Please tell me if I am incorrect :)

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Solve for m<br> please help

vampirchik [111]

Answer:

∠ ADE = 59°

Step-by-step explanation:

The angles in a rectangle are right angles, then

∠ ABC = 90° , that is

4x + 15 + 13x + 7 = 90

17x + 22 = 90 ( subtract 22 from both sides )

17x = 68 ( divide both sides by 17 )

x = 4

Then

∠ CBE = 13x + 7 = 13(4) + 7 = 52 +7 = 59°

Since the sides in a rectangle are parallel then

∠ ADE = ∠ CBE ( alternate angles )

∠ ADE = 59°

3 0

3 years ago

A drug store stocked 672 bottles of some kind of medicine.

Tpy6a [65]

Answer:

Step-by-step explanation:

672÷2=336

336÷7=48

4 0

4 years ago

Given that, (x, y), = (5, 10), find r

pickupchik [31]

Answer:

$r=5\sqrt{5}$

Step-by-step explanation:

we are given as

(x, y), = (5, 10)

we can compare

x-value is 5

$x=5$

y-value is 10

$y=10$

now, we can use formula

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

now, we can plug values

$r=\sqrt{5^2+10^2}$

$r=\sqrt{25+100}$

$r=\sqrt{125}$

so, we get

$r=5\sqrt{5}$

5 0

3 years ago

Pls someone help! I will mark brainliest!!!

devlian [24]

I think it is c or it could be d

6 0

3 years ago

As part of an activity during math class, Kiera has to select a secret number containing 3 different digits from 1 to 4. How man

Alenkasestr [34]

Answer:

24.

Step-by-step explanation:

The is the number of permutations of 3 digits from 4

= 4P3

= 4! / (4- 3)!

= 4 *3 *2 *1 / 1!

= 24/1

= 24.

8 0

3 years ago