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Hunter-Best [27]
2 years ago
8

Bro help pls...

Mathematics
1 answer:
Nostrana [21]2 years ago
3 0

Answer:

x = 2.5

Step-by-step explanation:

2x² + 7x – 30 = 0

(2x – 5) (x + 6) = 0

2x – 5 = 0 or x + 6 = 0

2x = 5 or x = –6

x = 5/2 or x = –6

x = 2.5 or x = –6

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For each graph below, state wether it represents a function.
Paul [167]

Answers:

Row 1: No, No, No

Row 2: Yes, Yes, Yes

===============================

Explanation:

Use the vertical line test. If it is at all possible to draw a single vertical line through more than one point on the relation curve, then the relation is not a function. This is because a function is only possible when any x input leads to exactly one y output.

So that's why graphs 1,2,3 are not functions, while graphs 4,5,6 are functions.

8 0
3 years ago
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zalisa [80]

Answer:

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Step-by-step explanation:

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6 0
3 years ago
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The longest side of a triangle is 5 in longer than the shortest side. The medium side is 4 in longer than the shortest side. If
aliina [53]

Answer: Shortest side = 6 inches, Medium side = 10 inches and Longest side = 11 inches

Step-by-step explanation: The perimeter has been given as 27 inches, and we know that the perimeter of any given figure is the addition of all sides. The sides are unknown yet, but we have clues as follows;

The longest side is 5 inches longer than the shortest side, hence the longest side equals s + 5. The medium side is 4 inches longer than the shortest side, hence the medium side equals s+ 4. Th shortest side remains s.

Therefore with the perimeter given as 27, we now have the expression;

s + s + 4 + s + 5 = 27

3s + 9 = 27

Subtract 9 from both sides of the equation

3s = 18

Divide both sides of the equation by 3

s = 6

Hence, the sides of the triangle are given as 6, (6+ 4) and (6+ 5), which is,

6 inches, 10 inches and 11 inches.

7 0
3 years ago
5(a + b) when a = 1 and b =6
Paha777 [63]

Answer:

35

Step-by-step explanation:

use distributive property

5a + 5b

5×1 + 5×6

5 + 30

35

3 0
2 years ago
Read 2 more answers
What is the slope of the line that passes through these two points?
Dmitry_Shevchenko [17]

Answer:

undefined

Step-by-step explanation:

We can use the slope formula to find the slope

m = ( y2-y1)/(x2-x1)

   = ( 9-3) / ( 2-2)

   = 6/0

When we divide by zero, the result is undefined

This means the slope is undefined

7 0
2 years ago
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