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2 years ago

Change 48 out of 60 to a percentage

Mathematics

2 answers:

velikii [3]2 years ago

8 0

Answer:

80%

Convert fraction (ratio) 48 / 60 Answer: 80%

Softa [21]2 years ago

5 0

48/60 x 100%

= 4/5 x 100%

= 80%

Hope it helps!

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Find the sum of the first 44 terms of the following series, to the nearest integer. 10, 14,18,...

Daniel [21]

Answer:

4224

Step-by-step explanation:

Here, we want to calculate the sum of the first 44 digits

Term a which is first digit is 10

common difference which is difference of terms = 14-10 = 18-14 = 4

Now the nth term of an arithmetic sequence is

a + (n-1)d

44th term means n = 44

10 + (44-1)4

10 + 43(4)

10 + 172 = 182

To find the sum, we use the formula

Sn = n/2[a + L]

where a is the first term and L is the 44th term

Sn = 44/2 (10 + 182)

Sn = 22(192)

Sn = 4,224

4 0

2 years ago

I need help because I'm solving these questions by the manual, and yet it still says that I am wrong after multiple attempts.

Alexxandr [17]

Answer:

1. QR = HI

2. angle W and angle T

3. WB = UV

Step-by-step explanation:

It could me fill in the part of the proof, since I notice on all of them they only mark one or two of the congruencies on the shapes. I'm not really sure of 3's answer.

Hope this helped somewhat and good luck

6 0

2 years ago

Nine children (Andrew, Ben, Candy, David, Ella, Fiona, Gordon, Henry, Ivan) form a circle in alphabetical order, clockwise. To c

blondinia [14]

We should start counting from fiona

7 0

2 years ago

If (-1,4) and (3,-2) are end points of diameter of the circle, then the equation of the circle is

Volgvan

Answer:

If you've more doubts you can ask :)

Step-by-step explanation:

If the centre of a circle is (a, b) and radius r, then the equation of the circle is :

$(x - x)^2 + (y-b)^2 = r^2$

First we will find the centre, (a , b):

$a = \frac{3+(-1)}{2} = \frac{2}{2} = 1\\\\b = \frac{-2 + 4}{2} = \frac{2}{2} = 1$

Find radius:

$Radius, r = \frac{Diameter}{2}$

Diameter is the distance between (-1, 4) and (3, -2)

$diameter = \sqrt{(x_2 - x_1)^2 +(y_2-y_1)^2} \\\\$

$= \sqrt{(3-(-1)^2 + (-2-4)^2} \\\\=\sqrt{16 + 36}\\\\=\sqrt{52}\\\\=\sqrt{4 \times 13}\\\\=2\sqrt{13} \ units$

Therefore , $r = \frac{2 \times \sqrt{13} }{2} = \sqrt{13} \ units$

Equation of the circle is :

$(x - 1)^2 +(y-1)^2 = 13$

4 0

2 years ago

I really need help with this question, pls help!!

Marrrta [24]

Answer:

Step-by-step explanation:

Here the average rate of change would be

f(6) - f(1) 162 - (-8)

a. r. of c. = ----------- = ------------------ = 154/5 = 308/10 = 30.8 or 30 8/10

6-1 5 or 30 4/5

6 0

3 years ago