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3 years ago

Select the correct answer. Solve for x. B. C. D.

Mathematics

1 answer:

wariber [46]3 years ago

5 0

Answer:

C. $-\frac{1}{2}$

Step-by-step explanation:

$20x - 40 = 100x$

$20x - 100x = 40$

$- 80x = 40$

$x = -\frac{40}{80}$

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

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From the set {7, 15, 18), which of the values can be substituted for c to make the

Aneli [31]

Answer:

D. 15

Step-by-step explanation:

90 - 30 = 60

2 • 15 = 30

the answer is 15

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3 years ago

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anygoal [31]

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3 years ago

Solve the following quadratic equations by any method. The solutions are:

Nataly_w [17]

Answer:

Option C .

Step-by-step explanation:

We would like to solve the below quadratic equation ,

$\longrightarrow f(x) = x^2-12x +32$

Step 1 : Equate f(x) with 0 :-

$\longrightarrow f(x) = 0\\$

$\longrightarrow x^2-12x + 32=0$

Step 2 : Factorise the RHS :-

$\longrightarrow x^2-8x - 4x +32=0\\$

$\longrightarrow x(x-8)-4(x-8)=0\\$

$\longrightarrow (x-8)(x-4)=0\\$

Step 3 : Equate each factor with 0 :-

$\longrightarrow x - 8 = 0\\ \qquad x -4=0$

$\longrightarrow x = 8 \qquad x = 4$

$\longrightarrow \underline{\underline{\boldsymbol{ x = 8,4}}}$

Hence option C is correct .

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2 years ago

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ValentinkaMS [17]

Answer:

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3 years ago

In preperation for halloween emily has made up a bag of her favorite candy. For every 4 tootsie rolls there are 7 smarties. She

Georgia [21]

Answer:

105

Step-by-step explanation:

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15x7= 105

5 0

3 years ago