MATHEMATICS HIGH SCHOOL

What is the value for y?

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y =

Answers

Answer 1

Answer:

Sides AC and CB are identical, which mean the two bottom angles are also identical.

Angle B (2x) would equal 50.

The three inside angles of a triangle equal 180, so the top angle would equal 180 - 50-50 = 80.

Now set the equation for angle C to equal 80 and solve for Y.

5y+10 = 80

Subtract 10 from each side:

5y = 70

Divide both sides by 5:

y = 70/5

y = 14

Answer 2

Answer:

Answer:

y = 8 and x = 25

Step-by-step explanation:

Look at pic below.

Hope this helps! :)

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By mistake, you added salt instead of sugar to the
oil. How can you remove the salt?

Answers

Answer: Evaporate the water by boiling it in a pot with a lid or another container. This separates both substances as the boiling point for water is much lower than salt, this method is called simple distillation.

Answer:

Salt is ionic, and oil is covalent. If you add water, the salt will dissolve in the water, and the oil will float to the top. You could then skim the oil and start over with sugar. To double-check, you could even make sure the oil does not conduct electricity!

Step-by-step explanation:

Use the value of the linear correlation coefficient r to find the coefficient of determination and the percentage ofthe total variation that can be explained by the linear relationship between the two variables. r = 0.885 (x = weight of male, y = waist size of male)

Answers

Answer:

Step-by-step explanation:

The coefficient of determination = $r^(2) = 0.885^(2)$ = 0.7832

It means about 78% variation in waist size of males can be explained by their weight and about 23% can not be explained.

A car travels 70 miles in 80 minutes. Which is its average speed per minute?a. 11 miles
b. 8.75 miles
c. 1.14 miles
d. 0.875 miles User: gopd

Answers

Answer:

The average speed per minute of the car is :

d. 0.875 $(mi)/(min)$

Step-by-step explanation:

The average speed tells you the speed of an object over time, it can be expressed as:

$A_(s)=(Distance)/(Time)$

As the car travels 70 miles in 80 minutes, we can replace values in the equation:

Distance = 70 miles

Time = 80 minutes

$A_(s)=(Distance)/(Time)$

$A_(s)=(70miles)/(80minutes)$

$A_(s)=0.875(mi)/(min)$

70/80 = miles per minute.
70/80 = 0.857 miles per minute

Answer: d. 0.875 miles

Help me please im failing math

Answers

Answer:

g(x) = x² - 5

Step-by-step explanation:

The vertex form of a parabola is:

→ y = (x - a)² + b

where (a, b) is the vertex of the parabola.

From the graph, we can identify that the vertex has been shifted down 5 units, and it has not been shifted horizontally. Therefore, we can assign the following a and b values:

a = 0
b = -5

Now, we can plug these into the vertexformequation to get the equation of the function g(x):

y = (x - 0)² + (-5)

This simplifies to:

y = x² - 5

Confirm that f and g are inverses by showing that f(g(x)) = x and g(f(x)) = x. f(x) = the quantity x minus seven divided by the quantity x plus three. and g(x) = quantity negative three x minus seven divided by quantity x minus one.