1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Varvara68 [4.7K]
3 years ago
7

Solve by using the quadratic formula:

TexFormula1" title="4x { }^{2} - 5x = 3" alt="4x { }^{2} - 5x = 3" align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
Anton [14]3 years ago
5 0

Answer:

x = (5 + sqrt(73))/8 or x = (5 - sqrt(73))/8

Step-by-step explanation:

Solve for x over the real numbers:

4 x^2 - 5 x = 3

Subtract 3 from both sides:

4 x^2 - 5 x - 3 = 0

x = (5 ± sqrt((-5)^2 - 4×4 (-3)))/(2×4) = (5 ± sqrt(25 + 48))/8 = (5 ± sqrt(73))/8:

Answer: x = (5 + sqrt(73))/8 or x = (5 - sqrt(73))/8

You might be interested in
In a survey of 1046 adults conducted by Bradley Corporation, subjects were asked how often they wash their hands when using a pu
prohojiy [21]

Answer:

Sample = 1046

Population = All adults.

Step-by-step explanation:

In Statistics, a sample can be defined as a set of items, objects or individuals collected, selected or drawn from a population. Thus, a sample is a subset of a population. In this scenario, the sample is 1046.

On the other hand, population can be defined as the total number of individuals in a survey. Thus, all the adults are a population.

8 0
2 years ago
Does someone mind helping me with this problem? Thank you!
Damm [24]

Using the Pythagorean theorem:

c = sqrt(8^2 + 7^2)

c = sqrt(64 + 49)

c = sqrt(113)

c = 10.6

7 0
2 years ago
Read 2 more answers
About 2% of the population has a particular genetic mutation. 400 people are randomly selected. Find the mean for the number of
sergeinik [125]

Answer:

200

Step-by-step explanation:

So it'll be 400 ÷ 2 = 200 , and a way to to check your way would be 200 x 2 = 400

5 0
3 years ago
If f(x)=-x+8 and g(x)=x^4,what is (g•f)(2)?
wariber [46]
Answer:

It can be written as <span>f<span>(−8)</span></span> or <span>f<span>(3<span>(−2)</span>−2)</span></span>

Explanation:

You would substitute <span>−2</span> for the x in <span>3x−2</span> and then insert <span>3<span>(−2)</span>−2</span> for the g. You would end up with <span>f<span>(3<span>(−2)</span>−2)</span></span>, which can also be simplified to <span>f<span>(−8<span>)</span></span></span>

5 0
3 years ago
In each diagram, abc is a straight line. Find the unknown angles.
aleksandr82 [10.1K]

Answer:

The value of ∠b = 180°

Step-by-step explanation:

Given that;

ABC is a straight line

Another angle is 137°

Find:

The value of ∠a

The value of ∠b

Computation:

We know that, ABC is a straight line

So,

137 + The value of ∠a = 180

The value of ∠a = 180 - 137

The value of ∠a = 43°

The value of ∠b = 360 - 137 - The value of ∠a

The value of ∠b = 360 - 137 - 43

The value of ∠b = 180°

6 0
3 years ago
Other questions:
  • Come up with an equation for this: eight plus the quotient of a number and three is -2
    13·1 answer
  • Evaluate the expression. 8 + 12 • 7
    5·2 answers
  • Does the equation hvce the same slope as the equation y=2x-4 and y=2x+4
    14·1 answer
  • ASAP!Hey I’m confuse help!! 10 points
    7·1 answer
  • 64 POINTS!!!!!!!!!!!!
    10·1 answer
  • the newspaper has more than 30 pages and fewer than 40 pages the newspaper is divided into sections each section has exactly eig
    5·1 answer
  • Simplify 8x^4/x^3+7x^4 and Find the excluded values​
    15·1 answer
  • What is the value of − 9 × ( 1 4 ) ÷ ( − 0.75 ) ?
    8·1 answer
  • The Greatest Common Factor (GCF) of 36 and 20 is
    6·1 answer
  • The math teachers had a party over the weekend where they all had some of
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!