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3 years ago

6

22. Tell which line below is the graph of each equation in parts (a)-(d).

1 answer:

Gekata [30.6K]3 years ago

8 0

A to l
b to n
c to m
d to K

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Use the given equation to find the number<br><br> 1/2x-19.7=-4.1

Leokris [45]

Answer:

the number is 31.2

Step-by-step explanation:

Given that:

1/2x-19.7=-4.1

Adding 19.7 on both sides:

1/2x-19.7 + 19.7=-4.1 + 19.7

1/2x = 15.6

Multiplying both sides by 2:

x = 15.6 * 2

x = 31.2

So the number is 31.2

i hope it will help you!

7 0

3 years ago

A bag contains a mixture of identical coloured balls.

Amiraneli [1.4K]

Answer:

72 yellow balls

Step-by-step explanation:

80% of 90 is (0.80*90) = 72 yellow balls.

5 0

2 years ago

17x-3y=4 2x-4y=1 the solution to the system of equations is

Burka [1]

ANSWER

$x=\frac{13}{62}$

and

$y= \frac{-9}{62}$ e have

EXPLANATION

$17x-3y=4---(1)$

$2x-4y=1$

Let us make y the subject and call it equation (2)

$2x=1+4y$

$x=\frac{1}{2}+2y--(2)$

We put equation (2) in to equation (1)

$17(\frac{1}{2}+2y)-3y=4$

$\frac{17}{2}+34y-3y=4$

$34y-3y=4- \frac{17}{2}$

Simplify to get,

$31y= \frac{8-17}{2}$

$31y= \frac{-9}{2}$

Divide both sides by 31,

$y= \frac{-9}{2} \div 31$

$y= \frac{-9}{2} \times \frac{1}{31}$

$y= \frac{-9}{62}$

We put this value in to equation (2) to get,

$x=\frac{1}{2}+2\times -\frac{9}{62}$

$x=\frac{1}{2} -\frac{18}{62}$

We collect LCM to obtain,

$x=\frac{31-18}{62}$

$x=\frac{13}{62}$

7 0

3 years ago

in triangle ABC angle A is a right angle and m B=45. Find BC. If your answer is not an integer, leave it in the simplest radical

Sergio039 [100]

I believe it's $\sqrt[12]{2}$

Hope I helped! ( Smiles )

5 0

3 years ago

Find the mean of these numbers:<br> 5,11,2,12,4,2

givi [52]

Answer:

6

Step-by-step explanation:

Add all the numbers together which you get 36.

next divide 36 by the total of number you have.

so 36 divided by 6 equals 6.

6 0

3 years ago