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lesya [120]
4 years ago
14

PLEASE HELP WITH ALGEBRA

Mathematics
1 answer:
ratelena [41]4 years ago
5 0
   y - y₁ = m(x - x₁)
y - (-7) = -1¹/₅(x - (-3))
   y + 7 = -1¹/₅(x + 3)
   y + 7 = -1¹/₅(x) - 1¹/₅(3)
   y + 7 = -1¹/₅x - 3³/₅

m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}} = \frac{-17 - (-2)}{3 - (-9)} = \frac{-17 + 2}{3 + 9}} = \frac{-15}{12} = \frac{-5}{4} = -1\frac{1}{4}

   y - y₁ = m(x - x₁)
y - (-2) = -1¹/₄(x - (-9))
   y + 2 = -1¹/₄(x + 9)
   y + 2 = -1¹/₄(x) - 1¹/₄(9)
   y + 2 = -1¹/₄x - 11¹/₄
       - 2               - 2
         y = -1¹/₄x - 13¹/₄

   y - y₁ = m(x - x₁)
y - (-3) = ⁻¹/₄(x - 8)
   y + 3 = ⁻¹/₄(x) + ¹/₄(8)
   y + 3 = ⁻¹/₄x + 2
       - 3           - 3
         y = ⁻¹/₄x - 1

     y - y₁ = m(x - x₁)
y - (-17) = ¹/₂(x - (-6))
   y + 17 = ¹/₂(x + 6)
   y + 17 = ¹/₂(x) + ¹/₂(6)
   y + 17 = ¹/₂x + 3
       - 17          - 17
          y = ¹/₂x - 14

m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}} = \frac{-4 - 8}{-4 - 6} = \frac{-12}{-10} = \frac{12}{10} = \frac{6}{5} = 1\frac{1}{5}

y - y₁ = m(x - x₁)
 y - 8 = 1¹/₅(x - 6)
 y - 8 = 1¹/₅(x) - 1¹/₅(6)
 y - 8 = 1¹/₅x - 7¹/₅
   + 8            + 8
      y = 1¹/₅x + ⁴/₅
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Using proportions, the cost of the 17-ounce sundae is of $5.95.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three. Due to this, relations between variables, either direct or inverse proportional, can be built to find the desired measures in the problem.

Considering the 12-ounce sundae bought for $4.2, the cost per ounce is given by the following proportion:

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Hence the cost of a 17-ounce sundae is:

$0.35 x 17 = $5.95.

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2 years ago
copy the problems onto your paper, mark the given and prove the statements asked. if PO is congruent to PR and UO is congruent t
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The two-column proof that proves that ∠O ≅ ∠R using the SSS and CPCTC theorems is shown in the image attached below.

<h3>What is the Side-side-side Congruence Theorem (SSS)?</h3>

The side-side-side congruence theorem (SSS) states that when three sides of a triangle are congruent to the corresponding three sides of another triangle, then both triangles are considered congruent to each other.

<h3>What is the CPCTC Theorem?</h3>

The CPCTC theorem states that when two triangles are proven to be congruent by any triangle congruent theorem, then all the corresponding parts of the congruent triangle are congruent. This implies that the corresponding sides and angles of both triangle are equal or congruent.

We are asked to prove that ∠O ≅ ∠R.

With the given image, we would draw segment UP. Thus, based on the reflexive property, UP ≅ UP (one pair of congruent sides).

We are given two pairs of corresponding sides already, which are: UO ≅ UR and PO ≅ PR.

This means that triangles OUP and RUP have three pairs of corresponding congruent sides. Therefore, ΔOUP ≅ ΔRUP.

Applying the CPCTC theorem, ∠O ≅ ∠R.

The two-column proof is attached in the image below.

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The amount that the insurance company will pay is $1800.

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It should be noted that the insurance company will pay John for the expenses of his injuries and repair of the car.

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= $500 + ($1400 - $100)

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3 0
2 years ago
Please help me thanks
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Answer:

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8 0
3 years ago
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Find the areas of the figures below. can you find more than one method for each shape. ​
Alekssandra [29.7K]

Answer:

47.5! Ask if you wanna know how exactly i got this and the formulas!

Step-by-step explanation:

3 x 5 = 15

<em>15 / 2 = 7.5</em>

<em>5 x 5 = 25</em>

14 - 8 = 6

6 x 5 = 30

<em>30/2 = 15</em>

<em></em>

<em>7.5 + 25 + 15 = 47.5</em>

3 0
3 years ago
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