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2 years ago

Find the value of x.

Mathematics

1 answer:

Mnenie [13.5K]2 years ago

6 0

Answer:

X=-8

Step-by-step explanation:

113°-69°-52=x

-8=x

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Solve 15 ≥ -3x or 2/5x ≥ -2. A.) {x | x ≤ -5} B.) {x | x ≥ -5} C.) {all reals}

Lapatulllka [165]

$15 \geq -3x\quad|:(-3)\qquad\vee\qquad \dfrac{2}{5}x \geq -2\quad|\cdot5\\\\\\
-5 \leq x\qquad\vee\qquad 2x \geq -10\quad|:2\\\\\\
-5 \leq x\qquad\vee\qquad x \geq -5\\\\\\x\geq -5\qquad\implies\qquad\boxed{\{x | x \geq -5\}}$

Answer B.

6 0

3 years ago

Read 2 more answers

68° radius=4.2cm A sector of a circle is shown. Find its area, rounded to the nearest tenth.

andrezito [222]

Answer:

Step-by-step explanation:

8 0

3 years ago

-6+3y=12 solve for x

Roman55 [17]

Answer:

The answer is y=6

Step-by-step explanation:

Move the constant to the right side and change its sign

3y=12+6

Add the numbers

12 +6

3y=18

Divide both sides of the equation by 3

Which equals

Y=6

Hope that helps

5 0

3 years ago

the temperature in winter night was -23 degrees Fahrenheit the temperature Rose by 5° when the sun rose when the sunset again th

expeople1 [14]

So we have -23 degrees to start

Then add 5 to it

It becomes -23+5=-18

Now subtract 7 from that so -18-7=-25 degrees

Hope this helps

8 0

3 years ago

Please help me. I'm stupid.

Gwar [14]

Answer:

$\displaystyle 36\:units$

Step-by-step explanation:

Split up this Isosceles, Right Triangle into two congruent smaller right triangles. The reflexive side [the line that splits them apart] is 6 units, and both legs are 8 units, leaving the hypotenuses to AUTOMATICALLY be 10 units, according to the Pythagorean Theorem:

$\displaystyle a^2 + b^2 = c^2 \\ \\ 6^2 + 8^2 = 10^2 \\ \\ 36 + 64 = 100 \\ \\ 100 = 100$

With this Pythagorean Triple, we know that our dimensions are correct. Now, to find the perimeter, just add up all the sides EXCEPT for the divider:

$\displaystyle 2[10] + 2[8] = 20 + 16 = 36$

I am joyous to assist you anytime.

3 0

3 years ago