3 years ago

Work out 4/7 + 2 1/3

Mathematics

1 answer:

motikmotik3 years ago

6 0

It's 61/21. That's the answer.

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In need of help please :)

Anettt [7]

Answer:

okay let's start

Step-by-step explanation:

$number \: 1 \\ cos \: b = \frac{adjacent}{hypotenuse} \\ cos \: b = \frac{ac}{cb} \\ \: \ cos \: b = \frac{12}{13} \\$

5 0

2 years ago

I need help on 10 13 16

Zepler [3.9K]

$10.\\1ft=0.3048m\to1m=\dfrac{10000}{3048}ft\approx3.281ft\\\\therefore\ 14m\approx14\cdot3.28ft1=45.93ft$

$13.\\1mi=1.609km\to1km=\dfrac{1000}{1609}mi\approx0.621mi\\\\therefore\ 0.3km\approx0.3\cdot0.621mi=0.186mi$

$1in=2.54cm\to1cm=\dfrac{100}{254}in\approx0.394in\\\\therefore\ 15cm\approx15\cdot0.394in=5.91in$

3 0

3 years ago

A = 100(1+r)^4 Expand the right of this formula. appreciate your help with an explanation

suter [353]

Answer:

100r^4 + 400r^3 + 600r^2 + 400r + 100

Step-by-step explanation:

Expanding ( r + 1 )^4 gives :-

r^4 + 4r^3 + 6r^2 + 4r + 1

So multiplying 100 with r^4 + 4r^3 + 6r^2 + 4r + 1 gives :-

100r^4 + 400r^3 + 600r^2 + 400r + 100

4 0

3 years ago

Help please! Thanks!!

Effectus [21]

Answer:

inverse of sin 1.6

or it can be written as sin^1 1.6

5 0

3 years ago

1. What is the solution? y 3 -3-2-1 2 3x O (1,2) O (1,-1) O 1 02

Rama09 [41]

9514 1404 393

Answer:

(d) Infinitely Many Solutions

Step-by-step explanation:

Each point of intersection between the lines is a solution. When the lines lie on top of each other, there are infinitely many points of intersection, hence ...

Infinitely Many Solutions

4 0

3 years ago