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3 years ago

Find the value of x.

Mathematics

1 answer:

Firdavs [7]3 years ago

8 0

Step-by-step explanation:

DC is equal to 180°, so subtract 105 from 180.

180-105=75

180 is the total of the the angles when added together.

67°+75°=142

180-142=38

x=38

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I need help with the steps. The answer is (5,2)

Elden [556K]

So with this, I will be using the substitution method. With the first equation, substitute (y+3) into the x variable and solve for y:

$y+3+y=7\\2y+3=7\\2y=4\\y=2$

Next, now that we have the value of y, substitute it into either equation to solve for x:

$x+2=7\\x=5\\\\x=2+3\\x=5$

And this is how you get your final answer (5,2).

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3 years ago

Round to the nearest whole. 782.36

ratelena [41]

The answer would be 782 because you would round down.

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3 years ago

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4x5 – 16x2 + 13x8 in standard form

FinnZ [79.3K]

Answer: I think standard form is when you you write it in thousands

Step-by-step explanation:

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3 years ago

Guys can u please help me out

sladkih [1.3K]

Answer:

$-0.36a^5x^6b^6$

Step-by-step explanation:

Ok first multiply the first two monomials:

$-0.6a^3x^6b^3$

Then multiply THAT with the OTHER monomial:

$-0.36a^5x^6b^6$

This should be the answer. Let me know if it's wrong.

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3 years ago

If (k, 4) is a point on the graph of the equation 4x + 2y=4, what is the value of k?

zmey [24]

Answer

k = -1

Step-by-step explanation:

First we turn the equation into y = mx+b format then we we can plug in the value y= 4 and get 4 = -2x + 2

subtract two from both sides so 2= -2x divide btoh sides by 2 and get x = -1

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2 years ago