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diamong [38]
3 years ago
15

Solve for x and y in the figure below

Mathematics
1 answer:
Len [333]3 years ago
4 0

Step-by-step explanation:

All the sides of the triangle are equal

Therefore, it is a equilateral triangle

and all angles measure 60°.

So, 25x-15= 60

25x = 60+15= 75

x= 75/25

x= 3

2y = 60

y=30

optionA

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What is the equation of the line that goes through the points (5, 11) and (7,21)?
iragen [17]

Answer:

y = 5x - 14

Step-by-step explanation:

First point coordinates

x₁

5

y₁

11

Second point coordinates

x₂

7

y₂

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Result

Slope (m)

5

m = 10 / 2 = 5 / 1 = 5

Your function

The entered points belong to an increasing, linear function.

Equation: y = 5x - 14.

Hope i helped :)

5 0
3 years ago
=
ivann1987 [24]

9514 1404 393

Answer:

  • large: 55 lb
  • small: 30 lb

Step-by-step explanation:

Let x and y represent the weights of the large and small boxes, respectively. The problem statement gives rise to the system of equations ...

  x + y = 85 . . . . . combined weight of a large and small box

  70x +50y = 5350 . . . . combined weight of 70 large and 50 small boxes

We can subtract 50 times the first equation from the second to find the weight of a large box.

  (70x +50y) -50(x +y) = (5350) -50(85)

  20x = 1100 . . . . simplify

  x = 55 . . . . . . . divide by 20

Using this in the first equation, we can find the weight of a small box.

  55 +y = 85

  y = 30 . . . . . . . subtract 55

A large box weighs 55 pounds; a small box weighs 30 pounds.

4 0
3 years ago
Find the slope from (1,-5) (3,-2)
Anarel [89]

Answer:

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Step-by-step explanation:

8 0
3 years ago
Given a polynomial f(x), if (x + 7) is a factor, what else must be true? f(0)=7 f(0)=-7 f(7)=0 f(-7)=0
Nataly [62]
F(-7)=0  

Because that makes the (x+7) factor equal zero and any other factor multiplied by zero also results in zero.
7 0
3 years ago
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uysha [10]

Answer:

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7+17=24

3 0
3 years ago
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