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3 years ago

PLEASE HELP!!What is the measure of angle x?

Mathematics

1 answer:

lesya692 [45]3 years ago

7 0

Answer:

Step-by-step explanation:

90 +36 = 126

There is 180 degrees in a triangle.

180 - 126 = 54

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BartSMP [9]

Answer:

Step-by-step explanation:

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3 years ago

Find the slope. A. y= -1/2x - 19/2.

Dmitry [639]

The equation of the line follows the following general structure:

$y=mx+b$

Where m is the slope of the line and b is the y intercept.

Find the corresponding values in the given formula, this way:

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1 year ago

Use completing the square to determine which of the following gives the solutions to 3x2 - 24x + 40 = 28.

jeka94

Answer:

$x=4+2\sqrt{3}$

$x=4-2\sqrt{3}$

Step-by-step explanation:

<u>Completing the square</u>

when $ax^2+bx+c=0$

Given equation:

$3x^2-24x+40=28$

Subtract 40 from both sides:

$\implies 3x^2-24x=-12$

Divide both sides by 3:

$\implies x^2-8x=-4$

Add the square of half the coefficient of $x$ to both sides:

$(\frac{b}{2})^2=(\frac{-8}{2})^2=16$

$\implies x^2-8x+16=-4+16$

Factor the left side and simplify the right side:

$\implies (x-4)^2=12$

Square root both sides:

$\implies x-4=\pm\sqrt{12}$

Add 4 to both sides and simplify the radical:

$\implies x=4\pm\sqrt{4 \cdot 3}$

$\implies x=4\pm\sqrt{4}\sqrt{3}$

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2 years ago

Which is the quotient for

mars1129 [50]

Answer:

i think its D

Step-by-step explanation:

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3 years ago

Tanya has $42 to spend at the Dolphin Island store. T-shirts sell for $7 each and a pair of sunglasses sells for $6. Tanya buys

ch4aika [34]

Hey! Let's go through this.

If she has 42 dollars and she buys 3 $7 t-shirts, we can use multiplication to see that she spent 21 dollars on t shirts, meaning she has 42-21 dollars left, or 21 dollars left.

If she has 21 dollars left and glasses sell for $6, then the most she can buy (keep in mind we can't buy a fractional part of a pair of sunglasses) at most 3 pairs, because if she bought four, she'd go over her spending limit.
Hope this helps!

6 0

4 years ago

Read 2 more answers

PLEASE HELP!!What is the measure of angle x? ​

PLEASE HELP!!What is the measure of angle x?