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3 years ago

Help ASAP I need help with this

Mathematics

1 answer:

Ulleksa [173]3 years ago

7 0

Draw 27 circles and take off 4.5 circles for every hour. The answer will be 6 hrs.

Expression:

-27/-4.5 I believe

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Shelia mows 1/6 acre in 1/4 hour. How many acres does she mow in per hour?

lbvjy [14]

Answer:

2/3 = .66

Step-by-step explanation:

1/6 * 4 = 4/6 = 2/3

5 0

3 years ago

If the first term of the series is 30 and the 14th term is 95, what is the sum of all the terms of the series?

RideAnS [48]

Answer:

D) $S_{14} = 875$ .

Step-by-step explanation:

Given : If the first term of the series is 30 and the 14th term is 95,

To find : what is the sum of all the terms of the series.

Solution : We have given

First term = 30 .

14 th term = 95.

Sum of all term = $S_{n} =\frac{n(first\ term +\ last\ term)}{2}$ .

Here, n = 14.

$S_{14} =\frac{14(30 +95)}{2}$ .

$S_{14} =\frac{14(125)}{2}$ .

$S_{14} =\frac{1750}{2}$ .

$S_{14} = 875$ .

Therefore, D) $S_{14} = 875$ .

7 0

4 years ago

Read 2 more answers

Find the determinant of the following matrix. [1 -2] [3 4]

Andrew [12]

Answer:

Step-by-step explanation:

[1 -2]

[3 4]

We can obtain the determinant of the above matrix by doing the following:

Determinant =(1 × 4) – (3 × –2)

Determinant = 4 – – 6

Determinant = 4 + 6

Determinant = 10

Thus, the determinant of the above matrix is 10

8 0

3 years ago

A circle is centered at the origin (0,0) and has a radius of 4 units. Which points on the circle have an x-coordinate of 1? (You

abruzzese [7]

Answer: (1, √15) and (1, -√15)

Step-by-step explanation:

A circle centered at the point (a, b) of radius R can be written as:

(x - a)^2 + (y - b)^2 = R^2

In this case we have:

"A circle is centered at the origin (0,0) and has a radius of 4 units"

Then the equation for this circle is:

x^2 + y^2 = 4^2 = 16.

Now, we want to find the points where x = 1, then we can replace that value and solve the equation for y.

1^2 + y^2 = 16

1 + y^2 = 16

y^2 = 16 - 1 = 15

y = +-√15

Then the two points that have the x-coordinate equal to 1 are:

(1, √15) and (1, -√15)

7 0

3 years ago

74 is a rational number but not a whole number. 74 is a whole number but not a rational number. 74 is a whole number and a ratio

Lady_Fox [76]

Answer:

Option C: 74 is both a whole number and a rational number.

Step-by-step explanation:

A rational number is defined as a number which can be written as a fraction of two integers, an integer, a whole number and a natural number. The integer could be positive or negative.

Examples include -1/4, 1/2, 12

So it's obvious that the given number of 74 is a rational number.

Now, a whole number is simply a non - negative integer.

An integer is a number that is not a fraction.

Thus, examples of whole numbers are 0, 1, 2, 3, 4...

So 74 is clearly a whole number.

Therefore, we can conclude that 74 is both a whole number and a rational number.

5 0

3 years ago