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3 years ago

Evaluate the following expressions if a = 2, b = 3, x = 4, and y = 5.

Mathematics

1 answer:

AlekseyPX3 years ago

8 0

Answer:

Step-by-step explanation:

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4ab + y × a^3

4 (2) (3) + 5 × 2^3

4 (2) (3) + 5 × 8

24 + 5 × 8

24 + 40

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Choose the point-slope form of the equation below that represents the line that passes through the point (6, −3) and has a slope

emmainna [20.7K]

Answer:

The point slope form of the equation that passes through the point (6, -3) and has a slope of one half is y + 3 = one half (x − 6) Thus Option C is correct

Solution:

Given that the line passes through the point (6, -3) and has a slope of one half

We have to find the point slope form of the line

The point slope form is given as

$y - y_1 = m(x - x_1)$

Where "m" is the slope of the line

Here in the given question, $m = \frac{1}{2} ; x_1 = 6 ; y_1 = -3$

Substituting the values we get,

$y - (-3) = \frac{1}{2} (x - 6)$

$y + 3 = \frac{1}{2} (x - 6)$

Thus option C is correct

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3 years ago

Find lim f(x) if f(x) x->5 = { -x² -1, x #5 -3, x=5

Alex73 [517]

Given

$f(x) = \begin{cases} -x^2 - 1 & \text{if }x \neq 5 \\ -3 & \text{if }x=5 \end{cases}$

we have

$\displaystyle \lim_{x\to5} f(x) = \lim_{x\to5} (-x^2-1) = -5^2-1 = \boxed{-26}$

since we are approaching $x=5$ , so effectively $x\neq 5$ and we use the definition of $f(x)$ under that condition.

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2 years ago

How will you know if angles are congruent or supplementary?

Nataly_w [17]

Answer:

congruent angles are angles that have the same degree so for example a 45° angle and another 45° angle are congruent

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3 years ago

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Mashutka [201]

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please do correct me if i am wrong.

Step-by-step explanation:

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2 years ago

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777dan777 [17]

Answer:

look up geoGebra then put in every option and see which one matches the graph

Step-by-step explanation:

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3 years ago