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
madreJ [45]
3 years ago
14

2b+3c^2/4a^2-2b a=8,b=4,c=16

Mathematics
2 answers:
ELEN [110]3 years ago
4 0

Answer:3.13

Step-by-step explanation:

Represent the variable with is value.

8+768/256-8

776/248

=3.129

~ 3.13

vekshin13 years ago
3 0

Answer:

The answer is 6

Step-by-step explanation:

try to change all variable to the number below

2(4)+3(16)^2/4(8)^2-2(4)

8+48^2/32^2-8

so now you can do multiplication and division first

48^2=96

96/32=3

3^2=6

After that, you put the 6 back where it belong

8+6-8=

So the Answer equal to 6

You might be interested in
I don’t understand this at all please help
Deffense [45]

Answer:

You need 10 of those numbers to be whole numbers, decimals, or fractions (THESE ARE RATIONAL)

You need the other 10 of those numbers to radicals, or numbers similar to pi (THESE ARE IRRATIONAL)

Step-by-step explanation:

4 0
3 years ago
In the game of blackjack played with one​ deck, a player is initially dealt 2 different cards from the 52 different cards in the
Volgvan

Answer:

P =4.83\%

Step-by-step explanation:

First we calculate the number of possible ways to select 2 cards an ace and a card of 10 points.

There are 4 ace in the deck

There are 16 cards of 10 points in the deck

To make this calculation we use the formula of combinations

nCr=\frac{n!}{r!(n-r)!}

Where n is the total number of letters and r are chosen from them

The number of ways to choose 1 As is:

4C1 = 4

The number of ways to choose a 10-point letter is:

16C1 = 16

Therefore, the number of ways to choose an Ace and a 10-point card is:

4C1 * 16C1 = 4 * 16 = 64

Now the number of ways to choose any 2 cards from a deck of 52 cards is:

52C2 =\frac{52!}{2!(52-2)!}

52C2 = 1326

Therefore, the probability of obtaining an "blackjack" is:

P = \frac{4C1 * 16C1}{52C2}

P = \frac{64}{1326}

P = \frac{32}{663}

P =0.0483

P =4.83\%

4 0
3 years ago
Read 2 more answers
Can anyone help me on this click on photo
spayn [35]
The amount of money I spend putting gas in my car this week is

      B  = 3.079 G

where
' B '  is the number of Bux I spend on gas this week.
' G '  is the number of Gallons I buy this week.

-- The independent variable is 'G'.  I can buy as few or as many gallons
as I want to.

-- The dependent variable is ' B '.  It <em>depends</em> on how many gallons I buy.
3 0
3 years ago
A researchers wants to determine the mean weight of avocados grown in Southern California. The population from which the sample
natka813 [3]

Answer: (0.465, 5.535)

Step-by-step explanation:

Formula to calculate the confidence interval (<em>when population standard deviation is unknown</em>) is given by :-

\overline{x}\pm t_{\alpha/2} \dfrac{s}{\sqrt{n}}

, where \overline{x} = sample mean.

s= sample standard deviation.

n= Sample size.

t_{\alpha/2} = critical value

By considering the given information , we have

\overline{x}=6

s=0.75

n= 9

Significance level = \alpha=0.1   [1-0.90=0.1]

By using students' t distribution -table , the critical value for 95% confidence level :

t_{\alpha/2 , n-1}=t_{0.1/2,\ 8}=1.86

[Note: degree of freedom = n-1]

Now, the 90% confidence interval for the true mean weight of these Southern California avocados will be :

6\pm (1.86) \dfrac{0.75}{\sqrt{9}}

6\pm (1.86) \dfrac{0.75}{3}

6\pm (1.86) 0.25

6\pm 0.465=(6-0.465,\ 6+0.465)=(0.465,\ 5.535)

Hence, the required confidence interval  =(0.465, 5.535)

4 0
3 years ago
Rewrite the expression in a simpler way: (only one sign between integers and no parentheses).
torisob [31]

Answer: 28 - 8

Step-by-step explanation:

Adding a negative number is the same as subtracting its absolute value (:

7 0
2 years ago
Other questions:
  • (will give brainliest)
    9·1 answer
  • Please help!! Been trying for so long the way my teacher taught it, but cannot get right answer.
    15·1 answer
  • The smith family's car needed 4.2 gallons of gasoline to drive a distance of 150 miles. nbased on this information, determine th
    5·1 answer
  • 3/4 + (1/3 ÷ 1/6) - (-1/2) =
    12·1 answer
  • What does x equal 7(2x+5)=4x -9 -x <br> PLEASEEEE HELPPPP ME
    12·1 answer
  • Melanie needs 5,000 chocolates for an event so far she has brought 2 cases of 1,125 chocolates each how many more does she need
    9·2 answers
  • The sum of 1/6 and 1/4 is _______
    10·1 answer
  • A rectangular bedroom is 2 ft longer than it is wide. Its area is 99 ft^2. What is the width of the room?
    8·1 answer
  • Fiona planted tomato plants in her back yard earlier this year. So far, they have produced 55 tomatoes. From past experience, sh
    9·1 answer
  • Find the area of this circle please…Use 3 for pi
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!