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3 years ago

What is the measure of x? A: 12 B: 9 C: 15 D: 6

Mathematics

1 answer:

ValentinkaMS [17]3 years ago

3 0

Answer:

Your answer is

b.9

Mark my answer as brainlist . I need that urgently . Folow me for more answer.

Step-by-step explanation:

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How do you write 0.27777777777777..... as a whole number

Agata [3.3K]

Answer:

i think 27777777777777/100000000000000

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

I seriously need help.

Leni [432]

Let's go:

y = ax + b

{5 = 4a + b

{15 = - 6a + b

{5 = 4a + b

{- 15 = 6a - b

10a = - 10

a = - 1

5 = 4a + b

4.(-1) + b = 5

b - 4 = 5

b = 9

- 1; 9

y = -1x + 9

I hope I helped you.

3 0

3 years ago

N°1. (1+1)x1-1 N°2. (2+2)x 2-6

Sveta_85 [38]

Step-by-step explanation:

do () first

2*1-1

then multiplication

2-1

then subtraction

same reason as above

4 *2 -6

8-6

8 0

3 years ago

See question above A) 7.2 cm B) 9 cm C) 10.6 cm D) 12 cm

Mila [183]

Answer:

B) 9 cm

Step-by-step explanation:

Just look at the triangle and use Pythagoras theoreum.

a² + b² = c²

a = 9 9 - 4.9 = 5

b = ?

c = 10

5² + b² = 10²

b² = 100 - 25

b² = 75

b = + - SQRT( 75 )

{Only the positive term has a meaning here.}

b = 8.66 rounded that is 9, which is answer B.

3 0

3 years ago

Quotient of 1+i/3+4i?

NISA [10]

Answer:

$\dfrac{7}{25} - \dfrac{1}{25}i$

Step-by-step explanation:

I assume you are asking

$\dfrac{1 + i}{3 + 4i}$

although what you wrote means this

$1 + \dfrac{i}{3} + 4i$

Back to what I think is your problem:

$\dfrac{1 + i}{3 + 4i} =$

$= \dfrac{1 + i}{3 + 4i} \times \dfrac{3 - 4i}{3 - 4i}$

$= \dfrac{(1 + i)(3 - 4i)}{(3 + 4i)(3 - 4i)}$

$= \dfrac{3 - 4i + 3i - 4i^2}{9 - 16i^2}$

$= \dfrac{3 - i + 4}{9 + 16}$

$= \dfrac{7 - i}{25}$

$= \dfrac{7}{25} - \dfrac{1}{25}i$

8 0

3 years ago