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3 years ago

Identify the two perfect squares that 14 is between.

Mathematics

1 answer:

weqwewe [10]3 years ago

8 0

Perfect squares:

$1^2,2^2,3^2,4^2,5^2,6^2...$

= 1, 4, 9, 16, 25, 36...

So 14 is between 9 and 16.

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Using the Quadratic Formula, which of the following is the solution to the quadratic equation x2 + 2x - 3 = 0?

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Answer: x=1 or x=-3

Step-by-step explanation:

Quadratic formula is $-b+-\sqrt{b^{2}-4ac } /2$

a=1 b=2 c=-3

Substitute

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4 years ago

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3 years ago

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Refer to the attached file for the explanation

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3 years ago

Evaluate 11.3s + 10.5t when s equals 7 and t equals 8.

navik [9.2K]

Answer:

About 163 (Exact Answer: 163.1)

<h2>Step-by-step explanation:</h2>

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4 0

3 years ago

Anna drives her car at a speed of 70 km per hour. How much distance will she cover in 3 hours 30 minutes?

Tresset [83]

Answer:

$\sf \: 245 km$

Step-by-step explanation:

$\sf Speed \: of \: the \: car = 70 km/h$

$\sf Time \: taken = 3 \: hours \: 30 \: minutes$

$= \sf 3 \frac{1}{2} \: hours$

$\sf = \frac{7}{2} \: hours$

$\sf Distance = Speed \times Time$

$\sf Distance = 70 \times \frac{7}{2} \: km$

$\sf Distance = 245 \: km$

Hence, Anna will cover 245 km in 3 hours 30 mins.

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3 years ago

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