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pychu [463]
2 years ago
13

3x squared - 5x -7=0

Mathematics
1 answer:
Papessa [141]2 years ago
8 0

The value of x is x=2.57338 and x=−0.906718

<h3>What is equation?</h3>

An equation is a mathematical expression that contains an equals symbol. Equations often contain algebra.

Given:

3x²-5x-7=0

Using the discriminant method,

a = 3, b = -5, and c = -7

x= -b± √b²-4ac / 2a

x= 5 ± √25 + 84/ 6

x= 5± √ 109

Hence, x=2.57338 and x=−0.906718

Learn more about this concept here:

brainly.com/question/24727211

#SPJ1

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The product of x and 8 is greater than or equal to -28.
Delvig [45]

Answer:

x≥3.5

Step-by-step explanation:

8x ≥-28

x≥-28/8

x≥-3.5

3 0
3 years ago
There is a 7% sales tax on a $425 television. How much is the tax? <br><br> Please help!!
BigorU [14]

Answer:

$29.75

Step-by-step explanation:

$425 × 0.07 = $29.75

5 0
3 years ago
I need help ASAP
MrRissso [65]

Answer: 2/9 or 0.22

Step-by-step explanation:

Probability = number of possible outcomes/ number of total outcomes

From the given question, total number of outcomes is 18, which the the sum of all the horses in the stable.

P(brown) = number of brown horses/ total number of horses

= 4/18, simplified to 2/9 as s fraction

= 0.22

I hope this helps.

7 0
3 years ago
Read 2 more answers
On Monday, Emma recorded a temperature of 15 degrees first thing in the morning.... Throughout the day, the temperature fell 0.5
Romashka [77]

Answer: B t= 15-0.5h

Step-by-step explanation:

5 0
3 years ago
If u(x) = x5 – x4 + x2 and v(x) = –x2, which expression is equivalent to (StartFraction u Over v EndFraction) (x)?
Maslowich

Based on the calculations, an expression which is equivalent to [u/v](x) is: C. -x³ + x² - 1.

<u>Given the following data:</u>

  • u(x) = x⁵ – x⁴ + x²
  • v(x) = -x²

<h3>What is an expression?</h3>

An expression is a mathematical equation which is used to show the relationship that exist between two or more numerical quantities or variables.

In this exercise, we would evaluate the given expressions by factorizing the function u(x) as follows:

u(x) = x⁵ – x⁴ + x²

u(x) = x²(x³ – x² + 1)

Rewriting the expressions as a fraction, we have:

\frac{u(x)}{v(x)} = \frac{x^2(x^3 - x^2 + 1)}{-x^2}\\\\\frac{u(x)}{v(x)} = -(x^3 - x^2 + 1)\\\\\frac{u(x)}{v(x)} = -x^3 + x^2 - 1

Therefore, u(x)/v(x) = -x³ + x² - 1.

Read more on expressions here: brainly.com/question/12189823

#SPJ1

5 0
2 years ago
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