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Snowcat [4.5K]
3 years ago
15

What is the value of x ?

Mathematics
1 answer:
Eduardwww [97]3 years ago
5 0
The other side of 100° is 80 and 80 + 70 = 150

A triangle equals to 180 so..

180 - 150 = 30

The value of x is 30.
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Solve the equation for y.<br><br> 8x – 9y = 11
SVETLANKA909090 [29]
8x-9y=11

Add 9y to both sides

8x = 11 + 9y

Subtract 11 on both sides

8x - 11 = 9y

Divide 9 on both sides



\boxed{y =  \frac{8x-11}{9} }
5 0
3 years ago
Marcia claims that the GCF for 2x^2, 4xy and 8xy^4 is 8x^2y^4. Is she correct? If not, what is the GCF?
posledela
The GCF is what they all have in common.
2x is the only thing they ALL share.
5 0
2 years ago
What is the answer for 4 1/5 × 3/7
KatRina [158]

Answer:

<h2>9/5</h2>

Step-by-step explanation:

<h3>4 1/5 × 3/7</h3><h3 /><h3>•change 4 1/5 into an <u>improper fraction</u></h3><h3 /><h3>21/5 × 3/7</h3><h3 /><h3>= 63/35</h3><h3 /><h3>= 9/5 </h3>

\tt{ \green{P} \orange{s} \red{y} \blue{x} \pink{c} \purple{h} \green{i} e}

7 0
2 years ago
Read 2 more answers
the scale of a map is 1 in :250 miles City A is 378 miles from City B To the nearest tenth how far is its distance on the map
avanturin [10]
1.5 inches. You take 378 and divide it by 250
3 0
3 years ago
8x+x^2-2y-64+y^2=0 standard form with explanation
xz_007 [3.2K]
X² + 8x +y² - 2y -64 =0
We see that the equation has x² and y² . Also we see that coefficients in front of x² and y² are equal. So this is an equation of the circle.
(x² + 8x) +(y² - 2y) -64 =0
(x² + 8x) +(y² - 2y) = 64
We need to complete square for x and y groups, that means it should be written in form (a+b)² or (a-b)².
Expressions in parenthesis we will write as a²+/-2ab+b², to write it after as (a+/-b)², because  a²+/-2ab+b² = (a+/-b)²

(x² + 2*4x) +(y² - 2*1y) = 64
(x² + 2*4x+4²) +(y² - 2*1y+1²) = 64+4²+1²
(x+4)² + (y-1)²= 81 Sometimes this is called a standard form of the circle.
(x+4)² + (y-1)²= 9² Sometimes it is required to write like this.

And if you are studying circles,ellipses  and hyperbolas, the standard form should look like
\frac{(x+4)^{2}}{9^{2}} + \frac{(y-1)^{2}}{9^{2}} =1






8 0
2 years ago
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