-7 plus what equals 12?????????????

Answer:

The first one (A) is the answer I got!

Step-by-step explanation:

Answer:

B = 706.5

Step-by-step explanation:

here you are given the diameter you need to First find a radius and radius is half of the diameter which is equal to 30 /2 = 15

Area of the circle is

[tex]\pi \: r { }^{2} [/tex]

3.14× 15×15 = 706.5

Answer:

2π!

Step-by-step explanation:

edge :)

Answer:

105.4

Step-by-step explanation:

Answer:

He has to dip it 5 times

Step-by-step explanation:

each time he dips it, he gets 1 1/2, or 1.5 gallons. how many times can you add 1.5 to 6 1/2, or 6.5. It is 4 1/3 times, but since you can't dip the bucket 1/3 of a time, it is counted as 1, so 5

Answer:

the answer is 5

Step-by-step explanation:

hope this helps ; )

Answer:

0.1248 = 12.48% probability of getting 3 blues.

Step-by-step explanation:

The M&Ms are chosen without replacement, which means that the hypergeometric distribution is used to solve this question.

Hypergeometric distribution:

The probability of x successes is given by the following formula:

[tex]P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}[/tex]

In which:

x is the number of successes.

N is the size of the population.

n is the size of the sample.

k is the total number of desired outcomes.

Combinations formula:

[tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

In this question:

7 + 4 + 4 + 2 + 3 + 3 = 23 total M&Ms, which means that [tex]N = 23[/tex]

Sample of 5 means that [tex]n = 5[/tex]

7 blue means that [tex]k = 7[/tex]

What is the probability of getting 3 blues?

This is P(X = 3).

[tex]P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}[/tex]

[tex]P(X = 3) = h(3,23,5,7) = \frac{C_{7,3}*C_{16,2}}{C_{23,5}} = 0.1248[/tex]

0.1248 = 12.48% probability of getting 3 blues.

Answer: -6.8

Step-by-step explanation:

First you have to find the mean of all the #’s so to do that you will have to add all the #’s up including the negatives and you would get -34, after you do that you will have to divide by 5 and get -6.8

Answer:

(x)=3x^2−12x+16

Answer- =3x2−12x+16

Step-by-step explanation:

Hope this helps :)

Answer:

false

Step-by-step explanation:

[tex]\left[\begin{array}{c}-4\end{array}\right] +\left[\begin{array}{c}7\end{array}\right] =\left[\begin{array}{c}3\end{array}\right][/tex]

Both of the matrices are 1 x 1 ("one by one"), so they can be added to produce a 1 x 1 matrix.

To add (or subtract) two matrices, they must be the same size.

(m x n) + (m x n) = (m x n)

m x n  means a matrix has  m  rows and  n  columns.  Dimensions are always named in that order:  rows, then columns.

Answer:

Its 9

Step-by-step explanation:

I did this in 5th grade... All you gotta do is count and there's 4 in the bottom aka 2 rows of 4 and there's 1 block on the top its 9

4+4+1=9

4+4=8

Add a 1 etc.

Answer:

26.3 units²

Step-by-step explanation:

A = [tex]A_{1}[/tex] + [tex]A_{2}[/tex]

[tex]A_{1}[/tex] = 4 × 5 = 20

[tex]A_{2}[/tex] = [tex]\frac{\pi r^2 }{2}[/tex] ≈ 3.14 × 2 = 6.28

A = 26.3 units²

Answer:

[tex]P(Foreign\ Language\ n\ Sport) = \frac{7}{25}[/tex]

Step-by-step explanation:

Given

See attachment for Venn diagram

Required

Determine [tex]P(Foreign\ Language\ n\ Sport)[/tex]

First, we calculate the population of the set.

This is calculated as:

[tex]Total = Sport + Foreign\ Language + None + Both[/tex]

This gives

[tex]Total = 23 + 10 + 3+14[/tex]

[tex]Total = 50[/tex]

So, the required probability is:

[tex]P(Foreign\ Language\ n\ Sport) = \frac{n(Foreign\ Language\ n\ Sport)}{Total}[/tex]

[tex]P(Foreign\ Language\ n\ Sport) = \frac{14}{50}[/tex]

14 represents the intersection between Foreign and Sport i.e. n(Foreign n Sport)

So, we have:

[tex]P(Foreign\ Language\ n\ Sport) = \frac{7}{25}[/tex]

Answer: 0.086 0r 8.6%

Step-by-step explanation:

Divide 1280.54 / 14,890 = 0.086

The sales tax rate for this purchase was approximately 8.6%.

Gertrude got a used car for $14,890; she has paid $1,280.54 as a sales tax.

We need to determine sales tax rate for this purchase,

To determine the sales tax rate for Gertrude's car purchase, we need to calculate the ratio of the sales tax amount to the initial price of the car and express it as a percentage.

Sales tax rate = (Sales tax amount / Car price) x 100

Given that Gertrude paid $1,280.54 as sales tax and the car's price was $14,890, we can substitute these values into the formula:

Sales tax rate = (1,280.54 / 14,890) x 100

Calculating this expression gives us:

Sales tax rate = (0.0859) x 100

Sales tax rate ≈ 8.6

Therefore, the sales tax rate for this purchase was approximately 8.6%.

Learn more about sales tax rate click;

https://brainly.com/question/29751934

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Answer:

4. 3x+1.8y

Step-by-step explanation:

(-3x+6.2y)-(-6x+4.4y)=-3x+6.2y+6x-4.4y=3x+1.8y

Answer:

d. (600 - 81π) units ³

Step-by-step explanation:

Volume of the shaded portion = volume of triangular pyramid - volume of cone

= ⅓*A*h - ⅓πr²h

Where,

A = 15*10 = 150 units²

r = ½(9) = 4.5 units

h = 12

Plug in the values

Volume of the shaded portion = ⅓*150*12 - ⅓*π*4.5²*12

= (600 - 81π) units³

Answer:

v

Step-by-step explanation:

Answer: the two electrolytes are the key ingredients in table salt and salt tablets

Two electrolytes, sodium and chloride, are the key ingredients in table salt and in salt tablets. These tablets have been used for many years to treat heat cramps and restore electrolytes lost through sweating

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

I got it wrong but it showed me the right answer so, yea

Answer:

85

Step-by-step explanation:

350/2= 175

175+90= 265

350-265=85

Answer:

8: 12

Step-by-step explanation:

total ratio

2 + 3 = 5

ratio 1

20 ÷ 5 = 4

ratio 2

4 × 2 = 8

ratio 3

4 × 3 = 12

Answer:

33,700m2 Land area: Singapore Flyer stands on 33,700m2 or 363,000 ft2 – an area that will fit 172 tennis courts or 1,120 parking lots. 471 meters is the real answer to the problem

Step-by-step explanation:

Plz brainlist

Answer:

Let the length of the sari be xm

cost of

2

1

=Rs 220

then cost of 1m=2(Rs220)=Rs440

Cost of the sari =x(Rs440)=Rs440x

But given that the cost of sari =Rs2640

Implies that

440x = 2640

Implies that

x=

440

2640

x=6

Answer:

The value of x is 55, because the two angles shown in each diagram are supplementary.

Answer:

$10 = 5  $5 = 11  $1 = 122

Step-by-step explanation:

i take the same class

Answer:

$10 = 5  $5 = 11  $1 = 122

Step-by-step explanation:

I checked of RSm

Answer:

-11237737337388927273737

Answer:

Step-by-step explanation:

To convert a decimal to a fraction, place the decimal number over its place value. For example, in 0.6, the six is in the tenths place, so we place 6 over 10 to create the equivalent fraction, 6/10. If needed, simplify the fraction.

How to Convert a Percent to Fraction. Divide the percentage by 100 to get a decimal number. Use that number as the numerator (top) of a fraction. Put a 1 in the denominator (bottom) of the fraction.

Answer:

$202.5

Step-by-step explanation:

13.5 sqyd area

13.5 x 15= $202.5

Answer:

The equation is ( x² / 9 ) - ( y² / 7 ) = 1

Step-by-step explanation:

Given the data in question;

hyperbola is centered at the  origin, this means h and k are all equals to 0.

Vertices: (-3,0) and (3,0)

Since y-coordinates are constant, this implies it is a hyperbola with horizontal transverse axis.

h - a = -3

0 - a = -3

a = 3

Foci: (-4,0) and (4,0)

h - c = -4

0 - c = -4

c = 4

we know that, for a hyperbola

c² = a² + b²

so

⇒ ( 4 )² = ( 3 )² + b²

16 = 9 + b²

b² = 16 - 9

b² = 7

So the equation for the hyperbola will be;

⇒ ( (x-h)² / a² ) - ( (y-k)² / b² ) = 1

so we substitute

⇒ ( (x-0)² / 3² ) - ( (y-0)² / 7 ) = 1

⇒ ( x² / 3² ) - ( y² / 7 ) = 1

⇒ ( x² / 9 ) - ( y² / 7 ) = 1

Therefore, The equation is ( x² / 9 ) - ( y² / 7 ) = 1