245 over 100 as a fraction
2 with 45 over 100 as a mixed number
2 with 9 over 20 as a mixed number simplest form
49 over 20 as a non mixed fraction in simplest form (improper fraction)
Answer:
1) The equation of the line is y = x + 4
2) The equation of the line is y = -12x + 8
Step-by-step explanation:
The slope-intercept form of the linear equation is y = m x + b, where
Let us solve the two questions
1)
∵ points (-2, 5) and (2, 3) lie on the same line
→ Find the slope m
∵ Δ x = 2 - (-2) = 2 + 2 = 4
∵ Δ y = 3 - 5 = -2
∴ m =
∴ The slope of the line is
→ Substitute the value of m in the form of the equation above
∴ y = x + b
→ To find b substitute the x and y in the equation by the coordinates
of a point on the line
∵ Point (-2, 5) lies on the line
∴ x = -2 and y = 5
∵ 5 = (-2) + b
∴ 5 = 1 + b
- Subtract 1 from both sides
∴ 5 - 1 = 1 - 1 + b
∴ 4 = b
→ Sustitute it in the equation
∴ y = x + 4
The equation of the line is y = x + 4
2)
∵ The slope of the line is -12
∴ m = -12
∵ The line passes through point (0, 8)
∵ b is the value of y at x = 0
∴ b = 8
→ Substitute the values of m and b in the form of the equation above
∴ y = -12x + 8
The equation of the line is y = -12x + 8
The equations of the lines are y=-0.5x+4 and y=-12x+8 respectively. For the first line, the slope is computed using provided points and the y-intercept is calculated using one of the points and the slope. For the second line, we use provided slope and point to write the equation.
Firstly, let's deal with the first part of the question. To write the equation of the line, we first need to calculate the slope. The slope (m) is calculated as (y2-y1)/(x2-x1). Using the points (-2,5) and (2,3) we find m=(3-5)/(2-(-2))= -2/4 = -0.5. The y-intercept (b) is the y value when x = 0. To find b, let's use the point (-2,5) and the slope in the equation y=mx+b. We get 5=(-0.5)*-2+b, hence b= 5-1= 4. So line equation is y=-0.5x+4.
For the second part of the question, we know that the slope (-12) and it passes through the point (0,8). So the y-intercept is 8 when x=0. Therefore, the equation of this line is y=-12x+8.
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B. cone
C. cylinder
D. prism
Question #6TrueFalse
A rectangular prism with a height of 6 m, a length of 5 m, and a width of 4 m will have a different surface area than a rectangular prism with a height of 5 m, a width of 6 m, and a length of 4 m.
TrueFalse
Question #7MultipleChoice Score:
The volume of a rectangular prism is 288 ft3. If its height is 6 feet and its length is 8 feet, what is its width?
A. 6 feet B. 8 feet C. 9 feet D. 12 feet
Question #8MultipleChoice
A cube is 6 feet on each side. What is its volume?
Answer: #1 is pyramid
Step-by-step explanation: a pyramid can have any polygon as a base
God bless
Answer:
The size of the post card she should use is 4 in. × 6 in.
Step-by-step explanation:
The parameters given are;
Dimensions of sign = 5 ft. × 7.5 ft
Hence, the ratio of the side sizes are;
5:7.5 which is the same as 2:3, therefore, to obtain the most accurate design of the sign on the post card, the size of the post card must be in direct proportion to the size of the sign which gives;
Side length ratio of post card = 2:3 = 4:6 = 4 in. × 6 in.
The size of the post card she should use is therefore = 4 in. × 6 in.