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
nata0808 [166]
3 years ago
5

One species of frog can grow to a maximum length of 12.4 millimeters. What is the maximum length of this frog species in centime

ters?
Mathematics
1 answer:
m_a_m_a [10]3 years ago
4 0
If you're asking for the conversion of 12.4 to centimeters, then the answer is:

12.4 millimeters = 1.24 centimeters
You might be interested in
Topic: The Quadratic Formula
Finger [1]

Answer:

Step-by-step explanation:

The quadratic formula for a equation of form

ax²+bx + c = 0 is

x= \frac{-b +- \sqrt{b^2-4ac} }{2a}

For the first equation,

x²+3x-4=0,

we can match that up with the form

ax²+bx + c = 0

to get that

ax² =  x²

divide both sides by x²

a=1

3x = bx

divide both sides by x

3 = b

-4 = c

. We can match this up because no constant multiplied by x could equal x² and no constant multiplied by another constant could equal x, so corresponding terms must match up.

Plugging our values into the equation, we get

x= \frac{-3 +- \sqrt{3^2-4(1)(-4)} }{2(1)} \\= \frac{-3+-\sqrt{25} }{2} \\ = \frac{-3+-5}{2} \\= -8/2 or 2/2\\=  -4 or 1

as our possible solutions

Plugging our values back into the equation, x²+3x-4=0, we see that both f(-4) and f(1) are equal to 0. Therefore, this has 2 real solutions.

Next, we have

x²+3x+4=0

Matching coefficients up, we can see that a = 1, b=3, and c=4. The quadratic equation is thus

x= \frac{-3 +- \sqrt{3^2-4(1)(4)} }{2(1)}\\= \frac{-3 +- \sqrt{9-16} }{2}\\= \frac{-3 +- \sqrt{-7} }{2}\\

Because √-7 is not a real number, this has no real solutions. However,

(-3 + √-7)/2 and (-3 - √-7)/2 are both possible complex solutions, so this has two complex solutions

Finally, for

4x² + 1= 4x,

we can start by subtracting 4x from both sides to maintain the desired form, resulting in

4x²-4x+1=0

Then, a=4, b=-4, and c=1, making our equation

x=\frac{-(-4) +- \sqrt{(-4)^2-4(4)(1)} }{2(4)} \\= \frac{4+-\sqrt{16-16} }{8} \\= \frac{4+-0}{8} \\= 1/2

Plugging 1/2 into 4x²+1=4x, this works as the only solution. This equation has one real solution

7 0
3 years ago
2. Tyler can type 50 words per minute. He needs to finish typing his 500-word
nikdorinn [45]

Answer:

9.5 minute

Step-by-step explanation:

500 - 25 = 50x

x  = \frac{475}{50}

x = 9.5 minute

6 0
3 years ago
Write the fraction as a percent.<br> 19/4
Alex777 [14]
19÷4=4.75
To make it into a percentage, multiply it by 100
4.75×100%=475%
7 0
3 years ago
Pedro bought lb of red sand and lb of brown sand to refill his sand box. Both types of sand cost $4.60 a pound. How much did Ped
Doss [256]
If we know that Pedro bought 1 \frac{1}{4} pounds of red sand, and 5 \frac{1}{2} pounds of brown sand, and they both cost $4.60, then we just have to add the individual amounts of sand, since they cost the same.

1  \frac{1}{4} + 5  \frac{1}{2} = 6  \frac{3}{4}

So Pedro bought 6 \frac{3}{4} lbs of sand overall. Now, we just need to multiply the cost per pound by the total amount of sand he bought.

6 \frac{3}{4} * 4.6 = 31.05

Pedro spent $31.05 on sand, which is answer choice B.
Hope that helped =)
4 0
3 years ago
Read 2 more answers
How many zeros are in the product of any nonzero whole number and 1000?Explain your answer
kotegsom [21]

Answer:

At least 3.

Step-by-step explanation:

It depends on the  whole number.

For example 53 * 1000 = 53,000 (3 zeros).

101 * 1000 = 101,000  (4 zeros).

8 0
3 years ago
Other questions:
  • Divided his money in the ratio 4:2 between jon and jack.jon got smaller amount of 12.56$.how much did jack recieve?
    10·1 answer
  • To make an international telephone call you need the code for the country you are calling. The codes for country A country B and
    10·1 answer
  • PLS HELP :(((
    11·1 answer
  • How to subtract and add polynomials
    5·1 answer
  • Ian has a list of 3 visit on a road trip with some friends . He needs to finalize the plans for the trip . How many different or
    5·1 answer
  • Find the quantity represented by each percent <br> 45% of 96 quarts(usa quarts)
    14·1 answer
  • Carmen worked more than 40 hours last week and earned $352.95. Her regular hourly pay rate is $7.80. After 40 hours, she is paid
    5·2 answers
  • Two triangles with the same corresponding side lengths will be congruent is known as the ?
    11·2 answers
  • (4x-1)2=11 <br> whats the solution
    12·1 answer
  • Using the correct graph, describe the association shown. Will mark brainliest❤️
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!