MATHEMATICS HIGH SCHOOL

1) What is the equation of the line whose y-intercept is 3 and slope is 1?y = x - 3
y = x + 3
y = 3x + 1

Answers

Answer 1
Answer: The\ slope-intercept\ form:y=mx+b\n\nm\ is\ slope\nb\ is\ y-intercept\n\nm=1;\ b=3\ then\ y=1x+3\Rightarrow y=x+3
Answer 2
Answer: y-intercept : \ b= 3 \n slope : \ m=1 \n \n the \ slope \ intercept \ form \ is : \n \n y= mx +b \n \n y=1\cdot x + 3 \n \ny=x+3

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The area of a right triangle is 270 m². The height of the right triangle is 15 m. What is the length of the hypotenuse of the right triangle?

Answers

The area of a triangle is calculated by the expression given as:

Area = bh/2

where b is the base and h is the height.

We calculate as follows:

270 = b (15) / 2
b = 36

hypotenuse = sqrt ( 15^2 + 36^2 ) = 39

Answer:

hypotenuse = 39m

Step-by-step explanation:

Area of a triangle= 1/2 * base * height

where base = ?

        height = 15

Plugin values into the formula:

270 = 1/2 base (15)

base = 270 (2)

               15

base = 36

hypotenuse = √(base² + height²)

                    = √( 36² + 15² )

                    = 39

What is the sum of 3/4 and 18/19 closest to 0 1 or

Answers

to solve this, you must find a common denominator (the number on the bottom of the fraction) before adding the numbers. The easiest was to do this is multiply the denominators together to get a common product. You then multiply by that number over itself, because that is equivalent to 1. So in this problem, you would multiply 3/4 by 19/19 and 18/19 by 4/4. Once you do this, you can add the fractions together.

What is the value of x in the equation −x = 6 − 3x + 8?−14
−7
14
7

Answers

Answer:

  x = 7

Step-by-step explanation:

Add 3x to both sides of the equation.

  2x = 6+8

Divide both sides by 2.

  x = 7

Answer:

7

Step-by-step explanation:

GIVING BRAINIEST
Explain how u got your answer
Pick from 1. 2. And 3.

Answers

Answer:

#2 is not a function

Step-by-step explanation:

Although there can be multiple y-values attributed to a single x-value, there can only be ONE x-value(of a number) in a function, so #2 would be incorrect seeing as it uses the x-value, 2, two times.

In the figure below, hln. Find the values of z and y.

Answers

To find y:

3y-14=180

3y=194

y=64.7

To find z:

180 - 64.7 = z

z = 115.3

If a thermometer indicates 30 degrees Celsius, what is the temperature in degrees Fahrenheit?A. 24°F
B. 17°F
C. 54°F
D. 86°F

Answers

If a thermometer indicates 30 degrees Celsius, the temperature in degrees Fahrenheit is 86°F.

Boiling water measures 100 degrees in Celsius, and 212 degrees in Fahrenheit. Freezing water measure 0 degrees in Celsius, and 32 degrees in Fahrenheit. 

So, if you want to convert Celsius into Fahrenheit, you will need to:
Multiply by 180/100
Add 32

Let's convert 30 degrees Celsius into Fahrenheit.
30 * 180/100 = 54
54 + 32 = 86
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