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pantera1 [17]
3 years ago
10

How to solve this equation? Please

Mathematics
1 answer:
Shtirlitz [24]3 years ago
7 0
Solve Let's solve your equation step-by-step.5+3.9x−8.15x25x=0
Step 1: Simplify both sides of the equation.−0.326x2+3.9x+5=0
Step 2: Use quadratic formula with a=-0.326, b=3.9, c=5.x=−b±sqrt(b2−4ac)2ax=−(3.9)±sqrt((3.9)2−4(−0.326)(5))2(−0.326)x=−3.9±sqrt(21.73)−0.652x=−1.1680135096973403,13.131203693746418Answer:<span>x=

−1.1680135096973403,13.131203693746418</span>
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Ted is making trail mix for the party. He mixes 1 1/2 cups of nuts, 1/4 cup of raisins, and 1/4 cups of pretzels. How many cups
goldenfox [79]

Answer:

13 more cups of trail mix or 13 1/4 cups

Step-by-step explanation:

1 1/2 (nuts) + 1/4(raisins) + 1/4(pretzels)=2 cups of trail mix

15-2=13

4 0
3 years ago
HELP ASAP! <br><br> Use the quadratic equation y = –2x^2 + 4x +5 to complete the statements.
gregori [183]

Answer:

Step-by-step explanation:

Given quadratic equation is,

y = -2x² + 4x + 5

y = -2(x² - 2x) + 5

y = -2(x² - 2x + 1 - 1) + 5

y = -2(x² - 2x + 1) + 2 + 5

y = -2(x - 1)² + 7

This equation is in the vertex form of the quadratic equation,

y = a(x - h)² + k

where, (h, k) is the vertex of the parabola.

Therefore, vertex of the given quadratic equation is (1, 7)

The equation can be rewritten as y = -2(x - 1)² + 7.

Therefore, the vertex of the graph of the function y = -2x² + 4x + 5 in the xy-coordinate plane is located at the point (1, 7).

4 0
3 years ago
Jorge is building a train set for his cousin. He has a piece of plywood that measures 49.5 inches in length, and he needs 2.25 i
Arada [10]

Answer: 22 pieces

Step-by-step explanation:

You have to divide 49.5 ÷ 2.25

49.5÷2.25= 22

Jorge can cut 22 pieces of plywood for the tracks.

3 0
3 years ago
Identify the property shown <br> (3x5)x10=3x(5x10)
yarga [219]
Asociative property of multiplication
7 0
4 years ago
Read 2 more answers
Answer these questions and i’ll give 20 points and brainliest answer!!
Goryan [66]

Answer:

3.  1/2                4.    13/20

Step-by-step explanation:

Those are the only one I know, sorry :/

6 0
4 years ago
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