2 years ago

What is the value of x?

Mathematics

1 answer:

goblinko [34]2 years ago

6 0

Answer:

3+3+x=30

x=30-9

21 is the answer

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Help please

tester [92]

Answer:

64y² - 81

Step-by-step explanation:

(8y +9)(8y - 9)

64y² - 72y + 72y - 81

64y² - 81

6 0

2 years ago

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Which diagram suggests a correct construction of a line parallel

ser-zykov [4K]

The third diagram is the correct answer.

8 0

3 years ago

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Can someone help me urgently

cluponka [151]

Answer:

which answer did you need help with

Step-by-step explanation:

i dont see what your inquiring about

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3 years ago

In each of the following ,make y the subject and hence find the value of y when a=2, b=3 ,and c=4.

zvonat [6]

Part i

$\dfrac{2a-7}{6y} = \dfrac{3b-5}{2c}$

$y = \dfrac{ 2c(2a-7)}{6(3b-5)} = \dfrac{c(2a-7)}{9b-15}$

Substituting,

$y = \dfrac{4(2(2)-7)}{9(3)-15} = \dfrac{ -12}{12} = -1$

Answer: -1

Part ii

I'm not sure that one's typed in correctly but I'll solve it as written.

$3-34y + 2a = \dfrac{3b-5}{2c + 1}$

$34y = 3+2a-\dfrac{3b-5}{2c + 1}$

$y = \frac 1 {34}\left(3+2a-\dfrac{3b-5}{2c + 1} \right)$

We're not asked to simplify it so I wont. Substituting,

$y = \frac 1 {34}\left(3+2(2)-\dfrac{3(3)-5}{2(4) + 1} \right) = \frac 1 {34}(7-4/9) = \dfrac{59}{306}$

Answer: 59/306

3 0

3 years ago

Solve the following equation algebraically:

Reptile [31]

Answer:

Step-by-step explanation:

divide by 3: x^2 = 4

Think you can finish that off now?

5 0

3 years ago

What is the value of x?​

What is the value of x?