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3 years ago

14

Angles L and K are alternate interior angles. The measure of L is 50°. What is mK? A. mK = 40° B. mK = 50° C. mK = 130° D. mK =

180°

1 answer:

USPshnik [31]3 years ago

6 0

Answer:

i think its either a or b

Step-by-step explanation:

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Please show work.. 50 is 40% of what number?

Nana76 [90]

(50x100):40=125

answer:125

3 0

3 years ago

Question 83 true or false and why ? plz ryt answer thanks

Vikki [24]

The answer is false.

The formula for the SA of a cone is $\pi r^{2}+\pi rl$ where <em>r</em> is the radius of the base and <em>l</em> is the slant height.
Since we have both the slant's height and the radius of the base we can answer this just by plugging numbers in;
$SA=\pi r^{2}+\pi rl\\
SA=\pi (2^{2})+\pi (2)(6)\\
SA=4\pi+12\pi\\
SA=16\pi\\$
$16\pi$ ≈50.2654...

So your answer is false.

6 0

4 years ago

Sachiko is framing the border of a square picture. If she knows the area of the picture, how could Sachiko determine the amount

tatyana61 [14]

Answer:

Set the area equal to x2, solve for x, and then multiply the value of x by 4.

Step-by-step explanation:

The area of the picture is given by

A = s^2 where s is the side length

Let the side length be x

A = x^2

Take the square root of each side

sqrt(A) = sqrt(x^2)

x = sqrt(A)

We want to find the perimeter since we are framing the border

P = 4s since the picture is a square

P = 4 * x

4 0

3 years ago

Read 2 more answers

for In the given expression, calculate as indicated. Express your answer as a single polynomial in standard form. 4x^(3)-2x^(2)

matrenka [14]

Answer:

The polynomial in standard form is $y = 14 + 6\cdot x - 8\cdot x^{2}+4\cdot x^{3}$ .

Step-by-step explanation:

A polynomial in standard fulfills the following condition:

$y = \Sigma_{i=0}^{m}\,c_{i}\cdot x^{i}$ , $\forall\,i\in \mathbb{N}$ , $0 \leq i \leq m$

Let be $y = (4\cdot x^{3}-2\cdot x^{2}+9)-(6\cdot x^{2}-6\cdot x + 5)$ , which is now handled algebraically:

1) $(4\cdot x^{3}-2\cdot x^{2}+9)-(6\cdot x^{2}-6\cdot x + 5)$ Given

2) $(4\cdot x^{3}-2\cdot x^{2}+9) +(-1)\cdot (6\cdot x^{2}-6\cdot x + 5)$ $(-1)\cdot a = -a$

3) $(4\cdot x^{3}-2\cdot x^{2}+9) +[(-1)\cdot (6\cdot x^{2})+(-6\cdot x)\cdot (-1)+5]$ Definition of substraction/Distributive property

4) $(4\cdot x^{3}-2\cdot x^{2}+9)+(-6\cdot x^{2}+6\cdot x + 5)$ $(-1)\cdot a = -a$ / $(-a)\cdot (-b) = a\cdot b$

5) $4\cdot x^{3}+ (-2\cdot x^{2}-6\cdot x^{2})+6\cdot x + (9+5)$ Associative and commutative properties

6) $4\cdot x^{3}-8\cdot x^{2}+6\cdot x + 14$ Distributive property/Definition of addition

7) $14 + 6\cdot x -8\cdot x^{2}+4\cdot x^{3}$ Commutative property/Result

The polynomial in standard form is $y = 14 + 6\cdot x - 8\cdot x^{2}+4\cdot x^{3}$ .

7 0

3 years ago

When do we use scientific notation? help plzzz :pp?

iogann1982 [59]

We use scientific notation when either the questions asks for it or when the number is really long or really short...

4 0

4 years ago

Read 2 more answers