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faltersainse [42]
3 years ago
9

Write the equation of line in slope-intercept form

Mathematics
1 answer:
Arturiano [62]3 years ago
4 0
The line crosses points (0, -1) and (2, 0)
y - (-1) = (0 - (-1))/(2 - 0) (x - 0)
y + 1 = 1/2 x
y = 1/2x - 1
You might be interested in
Identify the volume and surface area of the sphere in terms of π. HELP PLEASE!!
Helen [10]

Answer:

First choice V = 18,432π m^3; S = 2,304π m^2

Step-by-step explanation:

Start with the two formulas:

Volume of a circle:

V = \dfrac{4}{3} \pi r^3

Surface area of a circle:

S = 4 \pi r^2

Now use r = 24 m in each formula.

Volume:

V = \dfrac{4}{3} \pi (24~m)^3

V = \dfrac{4}{3} \pi (13,824~m^3)

V = 18,432\pi~m^3

Surface area:

S = 4 \pi r^2

S = 4 \pi (24~m)^2

S = 4 \pi (576~m^2)

S = 2,304\pi ~m^2

Answer: First choice V = 18,432π m^3; S = 2,304π m^2

3 0
3 years ago
On the first math test, Keiko answered 19 out of 25 questions correctly. On the
m_a_m_a [10]

Answer:

Keiko got a better answer on the test on her second test, and you could compare these two ratios as they are written.

Step-by-step explanation:

First: Convert each of the scores into percentages:

How do you convert ratios to percentages? Well, first we have to convert the ratio to a decimal or a fraction. Let's convert it to a fraction. So, 19 out of 25 will become \frac{19}{25}, and 17 out of 20 will become \frac{17}{20}. To convert a fraction to a percentage:

  • Divide the numerator by the denominator:

19 ÷ 25 = 0.76                                        AND                                    17 ÷ 20 = 0.85

  • Multiply your quotient by 100

0.76 x 100 = 76                                      AND                                 0.85 x 100 = 85

  • Add the percent sign

76%                                                          AND                                                   85%

Now the two quantities are easier to compare. We can obviously see that 85% is bigger [and better] than 76%. So, the ratio that equals 85% - 17 out of 20 - is a better grade.

The second question was: Can you compare these two ratios as they are written? Explain why or why not.

Yes, you can compare these two ratios, just find the [positive] difference between the amount that she scored and the total number of scores that could be gained.

25 - 19 = 6

20 - 17 = 3

Since the equation with 20 and 17 in it has a smaller difference, it is most likely to have a greater value [because that means that Keiko got more right and less wrong, which means a greater mark which is also a greater quantity].

Thanks,

Topic: Quantity Relationships, Quantity Conversions

4 0
3 years ago
What is the formula for a triangle prism
vekshin1

Answer:

Remember the formula for calculating volume is: Volume = Area by height. V = A X h.

For a triangle the area is calculated using the formula: Area = half of base by altitude. A = 0.5 X b X a.

So to calculate the volume of a triangular prism, the formula is: V = 0.5 X b X a X h.

Step-by-step explanation:

hopefully this helps :)

4 0
3 years ago
What is the value of d
Rasek [7]

Answer:

d=62

Step-by-step explanation:

180-56=124

2d=124

Divide both sides by 2

d=62

7 0
3 years ago
Five cups of coffee cost £4.00 how much does 3 cups of coffee cost
Eddi Din [679]

Answer:

2.00

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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