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Nadya [2.5K]
3 years ago
7

I need help: number 19

Mathematics
1 answer:
Gwar [14]3 years ago
4 0

Answer:

y=x+2

Step-by-step explanation:

the standard form is y=mx+b where m is the slope and b is the y intercept

TO FIND THE SLOPE: we take the x and y intercepts as a fraction. in this case the line touches the y axis (vertical) at point/value 2 and the x axis at point 2 as well. This means the slope is 2/2x which can be simplified to 1x or just x.

TO FIND THE Y INTERCEPT: we find where the line touches the y axis at point 2.

the slope is plugged into the m of the equation and the y intercept is plugged into the b of the equation.

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Find the slope-intercept form of the lines with the following properties.
Vikentia [17]

Hello!

If you want to find an equation that is parallel to another equation, and passing through the point (1, 4), you need to create a new equation with the same slope, you need to substitute the given point into the new equation to find the y-intercept.

m = 3, y = 3x + b (substitute the ordered pair)

4 = 3(1) + b (simplify)

4 = 3 + b (subtract 3 from both sides)

b = 1

Therefore, the line parallel to the line y = 3x - 2 and passing through the point (1, 4) is y = 3x + 1.

6 0
3 years ago
Simplify 3x + 6x^2 - 5x - x^2
just olya [345]

Answer: -2x + 5x^2

Step-by-step explanation:

3x + 6x^2 - 5x - x^2 = x(3-5) + x^2(6-1) = -2x + 5x^2

8 0
3 years ago
Read 2 more answers
Suppose A and B are independent events. If P(A)=0.4 and P(B)=0.9, what is P(A ∩ B) ? answers- a. .36 b. .06 c. .04 d. .54
Reptile [31]
The answer would be 0.54
4 0
4 years ago
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The birthday candle has the form of a cylinder and cone together, if its has a common radius of 5 mm. The height of cylinder is
alexandr402 [8]

Answer:

1779.33 mm³

Step-by-step explanation:

We are given a candle in a form of a cylinder and a cone

Dimensions;

Common radius is 5 mm

Height of the cylinder is 20 mm

Height of the cone is 8 mm

We are required to determine the amount that it can hold.

To answer the question we are going to determine its volume

Cylinder;

Volume of a cylinder is given by;

V = πr²H

Taking π to be 3.14

Then ;

Volume of cylinder = 3.14 × 5mm² × 20 mm

                                = 1570 mm³

Cone

Volume of a cone is given by;

V = 1/3πr²H

That is;

Volume =1/3 × 3.14 × 5mm² × 8 mm

            = 209.33 mm³

Therefore;

Volume of the solid = 1570 mm³ + 209.33 mm³

                                 = 1779.33 mm³

Thus, the volume of the solid is 1779.33 mm³

7 0
3 years ago
What is the value of log 43? Use the calculator. Round your answer to the nearest tenth.
Bad White [126]

Answer:

The value of log  43is 1.633

Step-by-step explanation:

Explanation:

Suppose you know that:

\begin{array}{l}{\log 2 \approx 0.30103} \\{\log 3 \approx 0.47712}\end{array}

Then note that:

43=\frac{129}{3} \approx \frac{128}{3}=\frac{2^{7}}{3}

So

\log 43 \approx \log \left(\frac{2^{7}}{3}\right)=7 \log 2-\log 3 \approx 7 \cdot 0.30103-0.47712=1.63009

We know that the error is approximately:

\log \left(\frac{129}{128}\right)=\log 1.0078125=\frac{\ln 1.0078125}{\ln 10} \approx 0.00782 .3=0.0034

So we can confidently give the approximation:

\log 43 \approx 1.633

6 0
3 years ago
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