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3 years ago

When you would not need to use the quadratic formula

1 answer:

3 0

Answer: When the quadratic equation can be factored or solved by completing the square, you do not need to use the quadratic formula

Step-by-step explanation: In the form ax² + bx + c

Whenever a is 1 (implied, no coefficient of x²) and the constant, c, is a multiple of numbers whose sum or difference is equal to b, factoring is much quicker and easier than using the quadratic formula.

Even when there is a coefficient of x², there are procedures to find the factors and solve for x without resorting to the quadratic formula.

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An elevator travels 310 ft in 10 seconds at that speed how far can this elevator travel in 12 seconds explain your reasoning

marta [7]

Answer:

372 ft

Step-by-step explanation:

This can be solved through cross multiplication.

310ft/10sec= x/12sec

Multiply the values across from each other. (A good way to know you've done it properly is if the numbers you multiplied are in different measurements. ex: 1 value is feet, the other is seconds)

310 x 12 = 3720

Divide by the remaining value.

3720 / 10 = 372

8 0

3 years ago

Solve for X 1) 8(1 + 5x) + 5 = 13 + 5x

marusya05 [52]

Answer:

X=0

Step-by-step explanation:

$8(1 \times 5x) + 5 = 13 + 5x \\ 8 + 40x + 5 = 13 + 5x \\ 40x + 13 = 13 + 5x \\ 40x - 5x = 13 - 13 \\ 35x = 0 \\ x = 35 \times 0 \\ x = 0$

7 0

3 years ago

Does the equation represent a linear or nonlinear function? Explain. y = x + 5

mrs_skeptik [129]

Answer:

Below.

Step-by-step explanation:

A linear function contains a variable of the first degree only - for example f(x) = 2x - 1 or f(z) = 3z.

So y = x + 5 is linear.

7 0

3 years ago

A survey was conducted to study the relationship between a college student's age and the value of the car they drive. Data were

ludmilkaskok [199]

Answer:

Q1 A Scatter plot. Q2

Step-by-step explanation:

Q1. We have a data set containing values of car and age group, if we plot value of the car on y-axis and the age on x, it is logical that two different age groups can own a care with same value, so we can have two values on x corresponding to one value on the y-axis, if we can use scatter plot to visually depict this data.

Q2 50 couples with bride age and groom age , here we can take age difference and number of couples that fit in the catogery, a two way table can be used to describe this data(two columns ).

6 0

3 years ago

Pls help I will mark brainless

SCORPION-xisa [38]

Answer:the answer is 1/5

Step-by-step explanation:

8 0

2 years ago