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tatiyna
2 years ago
7

Hey uh can anyone help me with this? This is a test and I dont need an explanation since its the last day of the marking period,

but yeah uh- can I get any help??

Mathematics
2 answers:
Archy [21]2 years ago
8 0

Answer:

Look at explanation.

Step-by-step explanation:

<em><u>Dilation of scale factor of 5, because it would become more wide and open by a factor of 5. Reflection over y-axis, because it makes the shape double the size. Dilation of scale factor of 1/2, because it makes the shape half it's size.</u></em> The rotating 90 degrees would only change the shapes position, not the size. The translation would only move the shape to a different area, and not change the size.

const2013 [10]2 years ago
5 0

A shape will change size only if it is dilated by some factor. Rotating the shape is just that, rotating it. Translating the shape is just moving it.

Correct answers: A, D

Hope this helps! :)

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1. a line with a slope of 1/3 passes through the point (3, 6) . which point also lies on this line?
valentina_108 [34]

1) Substituting into point-slope form, the equation of the line is y-6=⅓(x-3), which rearranges to:

  • y-6 = ⅓x - 1
  • y = ⅓x + 5

So, we can now substitute in the coordinates of each of the options to see which point lies on the line.

  1. 3 = ⅓(6) + 5 -> 3 = 7, which is false.
  2. 6 = ⅓(7) + 5 -> 6 = 22/3, which is false.
  3. -3 = ⅓(-3) + 5 -> -3 = 4, which is false.
  4. 3 = ⅓(-6) + 5 -> 3 = 3, which is true.

So, the answer is (4) (-6, 3)

2) Substituting into point-slope form, the equation of the line is y - 5 = ¾(x-2), which rearranges to:

  • y - 5 = 0.75x - 1.5
  • y = 0.75x + 3.5

So, we can now substitute in the coordinates of each of the options to see which point lies on the line.

  1. 8 = 0.75(6)+3.5 -> 8 = 8, which is true.
  2. 9 = 0.75(5) + 3.5 -> 9 = 7.25, which is false.
  3. 1 = 0.75(-1) + 3.5 -> 1 = 2.75, which is false.
  4. 2 = 0.75(6) + 3.5 -> 2 = 8, which is false.

So, the answer is (1) (6, 8).

3 0
1 year ago
A TV that usually sells for $178.09 is on sale for 30% off. If sales tax on the TV is 5%, what is the price of the TV, including
marusya05 [52]
178.09 \times \frac{70}{100}\times \frac{105}{100} = \frac{178.09 \times 70 \times 105}{100\times 100} = \frac{1308961.5}{10000} = 130.89615 \approx \boxed{130.90}

Your answer is $130.90

Note: We multiply by 70/100 because of the 30% discount. 100 - 30 = 70. So we have to multiply by 70%.

Also, we multiply by 105/100 because there is 5% tax. The tax means that we have to pay more which means 100 + 5 = 105.

Hope this helped :D
8 0
3 years ago
Read 2 more answers
Which is the product of 4/15 and 20
yKpoI14uk [10]

Answer:

5.32 (2 DP)

  • Start by dividing 4 by 15

4/15 = 0.266

  • Next, multiply 0.266 by 20

0.266 × 20 ≈ 5.3

3 0
2 years ago
Read 2 more answers
write the equation of the line that passes through the points (-3,1) and (3,5) in point-slope, slope-intercept, and standard for
Talja [164]

Answer:

See below.

Step-by-step explanation:

The slope of the line is (5-1) / (3 - -3)

= 4/6  = 2/3

Point slope form:

y - y1 = m(x - x1)

Plugging in m = 2/3 and the point (-3,1):-

y - 1 = 2/3(x + 3) (answer)

Slope-intercept form:-

y - 1 = 2/3(x + 3)

y = 2/3x + 2 + 1

y = 2/3x + 3 (answer)

Standard Form:-

y = 2/3x + 3

Multiply through by 3:-

3y = 2x + 9

-2x + 3y = 9  (answer).

3 0
2 years ago
Unit Cost for 500
Liula [17]
Answer : The 12- oz box of Honeycomb cereal for $4.32 is a better buy.


Explanation:

A 12- oz box of Honeycomb cereal for $4.32 has a unit cost of $0.36. A 16-oz box of Cheerios for $5.92 has a unit cost of $0.37. Therefore the 12-oz box of honeycomb cereal is a better buy.
6 0
3 years ago
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