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3 years ago

Subtract 2x^2+ 6x - 5 from 7x^2+ 3x + 4.

Mathematics

1 answer:

Alisiya [41]3 years ago

3 0

Answer:

− 5 $x^{2}$ + 13x −6

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Seven and six are your answers

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3 years ago

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3. Approximate square root v15

baherus [9]

Answer:

Step-by-step explanation:

$\sqrt{15}\\=3.87298\dots \\\\= 4$

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4 years ago

Find the nth term of this 5 7 9 11 13

NemiM [27]

Firstly, seeing that the sequence is based on odd numbers I would say that this is the formula (which will allow you to know whatever term):

nth term = 2n-1

Hope this helps!

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3 years ago

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Question 12

soldi70 [24.7K]

The question is incomplete! Complete question along with answer and step by step explanation is provided below.

Question:

The tank for a car holds 17 gallons. The gasoline gauge shows the tank is 3/4 full. How much gas is still in the tank?

Give your answer as a whole number or as a mixed fraction reduced to lowest terms.

Answer:

$Gas \: \:left = 12 \frac{3}{4} \: \:gallons \\\\$

Step-by-step explanation:

The tank for a car holds 17 gallons.

The gasoline gauge of the car shows that the tank is 3/4 full.

We are asked to find the remaining gasoline in the tank.

$Gas \: \:left = \frac{3}{4} \times 17 \\\\Gas \: \:left = \frac{51}{4} \\\\Gas \: \:left = 12 \frac{3}{4} \: \:gallons \\\\$

Therefore, the remaining gas in the tank is $12\frac{3}{4}$ gallons.

Alternatively:

$1 - \frac{3}{4} = \frac{1}{4}$

Amount of gasoline consumed = $\frac{1}{4} \times 17 = \frac{17}{4}$

Amount of gasoline left = total - consumed

Amount of gasoline left = $17 - \frac{17}{4} = 12\frac{3}{4} \:\: gallons$

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4 years ago

Please help and if you dont know please don't answer

Allisa [31]

Answer:

81cm

Step-by-step explanation:

15cm + 20cm + 21cm + 25cm = 81cm

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3 years ago

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