3 years ago

X-5.47753/0.06776 Solve for x

Mathematics

1 answer:

Dmitrij [34]3 years ago

3 0

Answer:

80.83722

Step-by-step explanation:

−5.47753 /0.06776 =−80.83722

x-80.83722

+80.83722 on both

x=80.83722

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Solve the missing variable

melomori [17]

Answer:

110°

Step-by-step explanation:

Angles on a quadrilateral always add up to 360°.

So, 100+95+55 = 250.

360-250 = 110°

8 0

3 years ago

Find the value of y, if the distance travelled<br> between the peints (2, y) and (-4, 3) is 10..

Rudiy27

Answer: y=11.

Step-by-step explanation:

$(2;y_1)\ \ \ \ (-4;3)\ \ \ \ \ L=10\ \ \ \ \ y_1 > 0\ \ \ \ y_1=?\\The\ distance\ travelled\ between\ the\ peints:\\L=\sqrt{(x_2-x_1)^2+(y_2-y_1)}\\ 10=\sqrt{(-4-2)^2+(3-y_1)^2}\\ 10=\sqrt{(-6)^2+3^2-2*3*y_1+y_1^2}\\ 10=\sqrt{36+9-6y_1+y_1^2} \\10=\sqrt{45-6y_1+y_1^2}\\10*10= \sqrt{45-6y_1+y_1^2}*\sqrt{45-6y_1+y_1^2}\\100=45-6y_1+y^2_1\\$

$y^2-6y_1+45=100\\y_1^2-6y_1-55=0\\y^2_1-6y_1-5y+5y-55=0\\y^2_1-11y_1+5y_1-55=0\\y_1*(y_1-11)+5*(y_1-11)=0\\(y_1-11)*(y_1+5)=0\\y_1-11=0\\y_1=11.\\y_1+5=0\\y_1=-5\notin\ (y_1 > 0).$