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3 years ago

Evaluate the expression for n = –8. –2n − 6 =

Mathematics

1 answer:

Nana76 [90]3 years ago

5 0

Answer:

Step-by-step explanation:

$\tt{ \green{P} \orange{s} \red{y} \blue{x} \pink{c} \purple{h} \green{i} e}$

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(4x2 + 7x - 4) + (x2 - 7x + 14)

fomenos

Answer:

4+7x

Step-by-step explanation:

5 0

3 years ago

An electric bulb is sold in a box measuring 5 cm by 4 cm by 4 cm. If the shopkeeper receives them in a carton measuring 50 cm by

katen-ka-za [31]

Answer:

250

Step-by-step explanation:

Bulb box and carton both are of cuboidal shape.

<u>For bulb </u><u>box</u><u> </u><u>the </u><u>d</u><u>imensions</u><u> </u><u>are:</u>

l = 5 cm, w = 4 cm, h = 4 cm

$V_{Bulb\: box} =lwh$

$\implies V_{Bulb\: box} =5(4)(4)$

$\implies V_{Bulb\: box} =80\: cm^3$

<u>For </u><u>Carton </u><u>the dimensions are</u><u>:</u>

l = 50 cm, w = 20 cm, h = 20 cm

$V_{Carton} =lwh$

$\implies V_{Carton} =50(20)(20)$

$\implies V_{Bulb\: box} =20,000\: cm^3$

To find the number of bulbs packed in the carton, divide the $V_{Carton}$ by $V_{Bulb\: box}$

$Number \:of \:bulbs =\frac{V_{Carton}}{V_{Bulb\: box}}$

$\implies Number \:of \:bulbs =\frac{20,000}{80}$

$\implies Number \:of \:bulbs = 250$

So, 250 bulbs will be packed in one carton.

3 0

2 years ago

For a sample of 100 students, the median number of text messages sent per day is 90, the first quartile is 78, and the third qua

Igoryamba

Answer:

between 78 and 102 texts and more than 78 text messages.

Step-by-step explanation:

the range of it is 102-178, so its between there, and its more than 78 as well if the range goes up to 102

7 0

4 years ago

Read 2 more answers

Judy bought 20 apples at the store, and the total weight was 2 kilograms. If the apples all had about the same weight, how much

chubhunter [2.5K]

Answer:

200 grams

Step-by-step explanation:

4 0

3 years ago

The linear equation y = 9x represents

Fiesta28 [93]

Answer:

A) (4, 36)

Step-by-step explanation:

Substituting 4 into the equation gets y = 9(4), which is equal to 36.

7 0

3 years ago

Read 2 more answers