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3 years ago

A rectangle has a width of 20 m and an area of 60 m. What is the length of the rectangle?

Mathematics

1 answer:

kirill115 [55]3 years ago

5 0

Answer:

the answer is 3.

Step-by-step explanation:

A = L* W

when you are given the area and the width you need to divide the area by the width to find the length.

So 60/20=3

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Use the Discriminant to find the nature of roots of the following relation: y = -2x2 + 9x - 7

Alex_Xolod [135]

Answer:

two real roots

Step-by-step explanation:

y = -2x^2 + 9x - 7

This is in the form

ax^2 +bx+c

a = -2 b = 9 c = -7

The discriminant is

b^2 -4ac

(9)^2 - 4(-2) (-7)

81 - 56

Since the discriminant is greater than zero, there are two real roots

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UkoKoshka [18]

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Step-by-step explanation:

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The mean of first five natural numbers is

Vinil7 [7]

Answer:

Step-by-step explanation:

Mean of first five natural numbers = sum of first 5 natural numbers ÷ 5

= (1 + 2 + 3 + 4 + 5)÷ 5

= 15 ÷ 5

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3 years ago

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DerKrebs [107]

Answer:

Consider this option:

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3 years ago

1.Find the mean of the data and round to the nearest hundredths.

Alenkasestr [34]

Answer:

Step-by-step explanation:

Mean of the data is defined by the average of the data.

Mean = $\frac{\text{sum of the data}}{\text{Number of terms}}$

= $\frac{28+32+65+159+22+20+33}{7}$

= $\frac{359}{7}$

= 51.29

Term at the center of the data when arranged in the increasing order is called as Median of the data.

20, 22, 28, 32, 33, 65, 159

Answer is MEDIAN

Median of the given data is 32.

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3 years ago