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3 years ago

What is equivalent to 8c+6-3c-2

Mathematics

2 answers:

IgorC [24]3 years ago

8 0

8c + 6-3c -2

8c -3c + 6-2 = 5c + 4

Brainliest please!

prohojiy [21]3 years ago

6 0

Your answer will be 5c+4

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Please answer question with work ♥️

vova2212 [387]

Answer:

r=201

d = 77 1/2

Step-by-step explanation:

6) First multiply left and right by 16, to get rid of the fraction:

r - 25 = 11*16

Now add 25 left and right:

r = 11*16 + 25 = 201

7) Add 5 left and right

2/5 d = 31

multiply by 5/2

d = 31 * 5/2 = 77 1/2

3 0

3 years ago

A factory increased its production by 22.5 % and produced 49000tonnes. How many tonnes was it producing before?

dezoksy [38]

Sería 37975 porque le tienes que restar el procentaje que se le ha añadido para saber cómo era antes

4 0

3 years ago

Solve the equation: k^2+5k+13=0

mr_godi [17]

Step-by-step explanation:

k² + 5k + 13 = 0

Using the quadratic formula which is

$x = \frac{ - b \pm \sqrt{ {b}^{2} - 4ac } }{2a} \\$

From the question

a = 1 , b = 5 , c = 13

So we have

$k = \frac{ - 5 \pm \sqrt{ {5}^{2} - 4(1)(13) } }{2(1)} \\ = \frac{ - 5 \pm \sqrt{25 - 52} }{2} \\ = \frac{ - 5 \pm \sqrt{ - 27} }{2} \: \: \: \: \: \: \\ = \frac{ - 5 \pm3 \sqrt{3} \: i}{2} \: \: \: \: \: \:$

Separate the solutions

$k_1 = \frac{ - 5 + 3 \sqrt{3} \: i }{2} \: \: \: \: or \\ k_2 = \frac{ - 5 - 3 \sqrt{3} \: i}{2}$

The equation has complex roots

Separate the real and imaginary parts

We have the final answer as

$k_1 = - \frac{5}{2} + \frac{3 \sqrt{3} }{2} \: i \: \: \: \: or \\ k_2 = - \frac{5}{2} - \frac{3 \sqrt{3} }{2} \: i$

Hope this helps you

8 0

3 years ago

What is804,082 in expanded form

Nutka1998 [239]

800000+4,000+80+2 you don’t need the zeros

3 0

4 years ago

Read 2 more answers

-4x = 16 a -64 b 4 c 20 d-4

cricket20 [7]

-4× = 16 answer: -4

Step-by-step explanation:

-4 × -4 = 16

4 0

3 years ago