Mathematics College

Which is the solution to this system of equations?

Answers

Answer 1

Answer:

E empty set

Step-by-step explanation:

The answer is empty at

Related Questions

Solve the following porportion.
x/25 = 2/5 x=

Answers

Answer: 10

=========================================

Work Shown:

x/25 = 2/5

5x = 25*2

5x = 50

x = 50/5

x = 10

------------

Another approach:

x/25 = 2/5

x/25 = (2*5)/(5*5)

x/25 = 10/25

x = 10

------------

Yet another method:

x/25 = 2/5

x/25 = 0.4

x = 25*0.4

x = 10

i need help with 7th grade math please need help ASAP + brainleist

Answers

Step-by-step explanation:

the area of garden is 970.08

Answer:

970. 08 [tex]ft^2[/tex]

Step-by-step explanation:

The rose garden is made up of 2 shapes: rectangle and a half-circle.

1. We start by finding the area of the rectangle...

[tex]31*24[/tex]We get 744 [tex]ft^2[/tex]

2. Then find the area of the half-circle

The area of a circle is [tex]\pi r^2[/tex]We need to divide it by half since we only have half the area [tex]\frac{\pi r^2}{2}[/tex]The question only gives us the diameter (24), to find the radius we divide by 2 to get 12Now plug 12 for r [tex]\frac{\pi(12^2)}{2}[/tex]Plug 3.14 for [tex]\pi[/tex], [tex]\frac{3.14(12^2)}{2}[/tex]Compute: 226.08 [tex]ft^2[/tex]

3. Add the areas together

[tex]744 + 266.08[/tex]Finally, we have 970.08 [tex]ft^2[/tex]

Given ΔABC. Choose which of the following sides create a right triangle:

21

I. a=1.2,b=3.5,c=3.6
II. a=6,b=9.1,c=10.9
III. a=6,b=8,c=9

Answers

Answer:

II. a = 6 , b = 9.1 , c = 10.9

Step-by-step explanation:

I. a = 1.2 , b = 3.5 , c= 3.6

c² = a² + b²

3.6² = 1.2² + 3.5²

12.96 = 1.44 + 12.25

12.96 ≠ 13.69

These sides cannot create a right triangle.

II. a = 6 , b = 9.1 ,c = 10.9

c² = a² + b²

10.9² = 6² + 9.1²

118.81 = 36 + 82.81

118.81 = 118.81

Therefore, these sides can create a right triangle.

III. a = 6 , b = 8 , c = 9

c² = a² + b²

9² = 6² + 8²

81 = 36 + 72

81 ≠ 108

These sides cannot create a right triangle.

How can these models be used to find the sum 1.8 + 1.56?

Enter your answers in the boxes.

The models show a total of 2 wholes,
tenths, and
hundredths. After regrouping 10 tenths into 1 whole, there are
wholes,
tenths, and
hundredths. Therefore, the sum of the numbers is
.
First row. One large square divided into a 10 by 10 grid of 100 small squares. Eight columns, each divided into 10 small squares. Second row. One large square divided into a 10 by 10 grid of 100 small squares. Five columns, each divided into 10 small squares. Six small squares.

Answers

Answer:

The sum of 1.8 and 1.56 is 3.36 according to the model

Sum of decimals

Given the expression 1.8 + 1.56

Using the partial sum method

1.8 + 1.56 = (1.0 + 0.8) + (1.0+0.56)

Regroup as whole and decimal number

1.8 + 1.56 = (1.0 + 1.0) + (0.8 +0.56)

1.8 + 1.56 = 2.0 + 1.36

1.8 + 1.56 = 3.36

Hence the sum of 1.8 and 1.56 is 3.36 according to the model

What is the area of the triangle Base is 6 ft height is 5 ft.

Answers

Answer:

Area of a triangle = 0.5 * base * height = 0.5 * 6 * 5 = 15 sq. ft

Answer:

Area = 0.5 * base * height

0.5 * 6 * 5 = 15

Area = 15 sq ft

Kasha has a spinner divided into 8 equal sections that are labeled 1 though 8. She wants to compare the theoretical probability and
the experimental probability of spinning an odd number. She spins the spinner 10 times and records the results in this list.
{2, 4, 1, 8, 7,5, 3, 4, 1,5}
Drag and drop the answers into the boxes to correctly complete the sentences
The theoretical probability of spinning an odd number is equal to
The experimental probability of spinning an odd
number is equal to
Therefore, the theoretical probability of spinning an odd number is
the
experimental probability of spinning an odd number
3
5
greater than
less than

Answers

The theoretical probability = [tex]\frac{1}{2}[/tex], The experimental probability = [tex]\frac{3}{5}[/tex]

Less than

What is experimental probability?

The experimental probability of an event occurring is the number of times that it occurred when the experiment was conducted as a fraction of the total number of times the experiment was conducted.

The theoretical probability of spinning and odd number = [tex]\frac{4}{8}[/tex] = [tex]\frac{1}{2}[/tex]

The experimental probability =[tex]\frac{6}{10}[/tex] = [tex]\frac{3}{5}[/tex]

Since [tex]\frac{1}{2}[/tex]< [tex]\frac{3}{5}[/tex]

So, the theoretical probability less than the experimental probability.

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5y3 – 4y – 1

Leading term:

Leading coefficient:

Constant term:

Answers

Answer:

Leading term:

5y^3

Leading coefficient:

Constant term:

-1

Step-by-step explanation:

5y^3 -4y -1

The leading term is the term with the highest power of the variable

5y^3 is the leading term

the leading coefficient is the number in front of the highest power of the variable

5 is the leading coefficient

The constant term is the number alone

-1 is the constant term

Captain Ashley has a ship, the H.M.S Crimson
Lynx. The ship is two furlongs from the dread
pirate Umaima and her merciless band of
thieves.
If her ship hasn't already been hit, Captain
1
Ashley has probability of hitting the pirate
2
ship. If her ship has been hit, Captain Ashley will
always miss.
If her ship hasn't already been hit, dread pirate
1
Umaima has probability of hitting the
3
Captain's ship. If her ship has been hit, dread
pirate Umaima will always miss.
If the Captain and the pirate each shoot once,
and the pirate shoots first, what is the probability
that both the pirate and the Captain hit each
other's ships?

Answers

A because 1 makes the most sense and i already answered it

Simplify: [tex]\sqrt{\frac{144}{25} }[/tex].

Answers

Answer:

[tex]\frac{12}{5}[/tex]

Step-by-step explanation:

[tex]\sqrt{\frac{144}{25}}=\frac{\sqrt{144}}{\sqrt{25}}=\frac{12}{5}[/tex]

Given term:

[tex]\sqrt{\dfrac{144}{25} }[/tex]

This term can also be written as;

[tex]\implies \sqrt{\huge\text{(}\dfrac{144}{25} \huge\text{)}}[/tex]

Clearly, we can see that 144 and 25 are perfect squares. Then,

[tex]\implies\sqrt{\huge\text{(}\dfrac{12^{2} }{5^{2} } \huge\text{)}}[/tex]

According to an exponent property, (a²/b²) = (a/b)². Then,

[tex]\implies\sqrt{\huge\text{(}\dfrac{12}{5} \huge\text{)}^{2} }[/tex]

Since 12/5 is being squared inside the root, we can remove the squared symbol and take out 12/5 from the root. Then we get;

[tex]\implies\sqrt{\huge\text{(}\dfrac{12}{5} \huge\text{)}^{2} } \ = \ \dfrac{12}{5} \ = \ \boxed{2.4}[/tex]

Therefore, the simplified term is 2.4.

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On a map, 1 inch equals 25 miles. Two cities are 3 inches apart on the map. What is the actual distance between the cities?

Answers

Answer:

75 Miles apart

Step-by-step explanation:

I = inches on a map

I=25

3I=75

75 miles apart

Brainliest for the right answer, anyone? :p

Find the midpoint M of the line segment joining the points P = (-2, -4) and Q = (-6, -8).

Answers

Answer:

(-4,-6)

Step-by-step explanation:

For x, the middle point between -2 and -6 is -4

for y the middle point between -4 and -8 is -6

Steven is puiting a design that contains two repeating patterns that start in the same place. One pattern repeats every 12 inches and the other repeats every 18 inches. How many inches will it take for the patterns to begin together again?

Answers

Answer:

Step-by-step explanation:

So, taking 12 inches and 18 inches, we can figure out where they both meet. To do this, you want to change these number into a fraction (12/18). Simplifying this gives you 2/3. So if you flip this fraction (3/2) and then use these number and multiply them with the first numbers (so we do 3*12 and 2*18, they both equal 36, so they would both meet at 36, our final answer. they would also meet at 72, 108, 144, etc. if you were to keep going.

Can someone help me with this please?

Answers

f hi I chhiring Tamang I read in hdidieje

All computers are on sale for 10% off the original price.

If x is the original price of the computer, then the function that represents the price after only a 10% discount is:

P(x) = x - 0.1x

P(x) = 0.9x

The function that gives the price, C, if only a $150 coupon is used is:

C(x) = x - 150

Choose the composition function that gives the final sale price after a 10% discount is followed by a $150 coupon.

C(P(x)) = 0.9x – 150

P(C(x)) = 0.9x – 150

C(P(x)) = 1.9x – 150

P(C(x)) = 1.9x – 150

Answers

1.66 although the independent variable is purple but the dog ate the cat

Find the perimeter of the figure to the nearest hundredth. perimeter: about cm

Answers

The perimeter of the figure to the nearest hundredth is 50.26 cm.

Perimeter of a figure.

The perimeter of a figure is the sum of the whole sides of the figure.

The perimeter of the figure can be found as follows:

perimeter of the figure = 12 + 5 + 5 + circumference of the semi circle

circumference of the semi circle = πr

where

r = radius

perimeter of the figure = 22 + πr

perimeter of the figure = 22 + 3.14(9)

perimeter of the figure = 22 + 28.26

perimeter of the figure = 50.26 cm

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1/5 is 60% of what number

Answers

1/5 = 60/100 * x

1/5 * 100/60 = x

100/300 = x

1/3 = x

Answer:

[tex] \frac{1}{3} [/tex]

Step-by-step explanation:

According to what we know, one-fifth is 60% of a number. Let us call that unknown number x. Since

[tex] \frac{1}{5} = 60\% \: \\ then \\ x = 100\%[/tex]

60% as a fraction is 6/10 or 3/5, in that case 100% as a fraction would be 5/5.

Recall: 60% = 3/5 and 100% = 5/5

therefore:

1/5 = 3/5

x = 5/5

note in order to find the value of x we cross multiply*

[tex] \frac{1}{5} ( \frac{5}{5}) = \frac{3}{5} x[/tex]

[tex] \frac{1}{5} = \frac{3}{5} x \\ \\ \frac{ \frac{1}{5} }{ \frac{3}{5} } = \frac{ \frac{3}{5} }{ \frac{3}{5} } x \\ \\ \frac{1}{5} \times \frac{5}{3} = x[/tex]

[tex] \frac{1}{3} = x[/tex]

Find the Mean Absolute Deviation (MAD) of the following test scores.

Remember, the Mean is just the first step.

Scores:
{ 48, 61, 73, 76, 76, 74 }

Answers

Based on the calculation below, the Mean Absolute Deviation (MAD) of the test scores is 0.

How to calculate Mean Absolute Deviation (MAD)

The mean of the 6 test scores is first calculated as follows:

Mean = Sum of the test scores / Number of test scores = (48 + 61 + 73 + 76 + 76 + 74) / 6 = 68

We can now calculate the MAD of the test scores as follows:

After rolling a fair 20-sided die 200 times The observed or experimental probability of rolling a 20 was 25% what will happen to the probability of rolling a 20 if the dye is ruled 10,000 more times

Answers

Answer:

Step-by-step explanation:

The theoretical probability of getting a 20 in 1 throw is 1/20 = 5%.

The more times you roll the dye the closer the experimental probability moves to the theoretical.

So the probability will get less than 25% and get closer to the theoretical 5%.

If the die is rolled 10,000 more times, we can expect the experimental probability of rolling a 20 to be close to 500/10,000, which simplifies to 0.05 or 5%.

We have,

The probability of rolling a 20 on a fair 20-sided die is 1/20 or 0.05.

If the die is rolled 200 times and the observed probability of rolling a 20 is 25%,

We can calculate the number of times a 20 was actually rolled as follows:

Number of times a 20 was rolled

= Observed probability × Number of rolls

= 0.25 × 200

= 50

So, out of 200 rolls, 20 were rolled 50 times.

Now, if the die is rolled 10,000 more times, we can use the law of large numbers to expect the experimental probability of rolling a 20 to approach the true probability of 0.05.

The expected number of times a 20 will be rolled in 10,000 rolls is:

The expected number of times a 20 will be rolled

= Probability of rolling a 20 × Number of rolls

= 0.05 × 10,000

= 500

Therefore,

If the die is rolled 10,000 more times, we can expect the experimental probability of rolling a 20 to be close to 500/10,000, which simplifies to 0.05 or 5%.

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Multiply 3hrs 40mins by 7

Answers

Answer:

25 hour 40 minutes

Step-by-step explanation:

3 hrs X 7 is = 21 hours

then you mutliply 40 mins times 7 which is equal to 280mins

the you divide 280mins by 60 mins because 60 minutes is equal to an hour and you come out with 4 hours and 40 minutes which you add to 21 which is equal to 25 hours!

Hope This Helps!

Find the value of D of a square and the sides are 4 n 4 n 4 n 4 and D is diagonal

Answers

Answer:

D = 4√2

Step-by-step explanation:

Formula:

In a square with sides each of length ‘a’ :

The diagonal D of the square = a√2

…………………………………………………………

The square ,in our example has 4 sides all of Length 4 ,then

D = 4√2

Joe has 5/6 cup of paint in a container. He uses 2/5 cup on a project then adds another 1/3 cup. How much paint does he have now?

Answers

Answer:

=23/30

Step-by-step explanation:

5/6-2/5

Multiply 5/6 by 5 and -2/5 by 6

25/30-12/30

25-12/30

=13/30

Then he adds another 1/3

=13/30+1/3

multiply 1/3 by ten

=13/10 + 10/30

=13+10/30

=23/30

5/6-2/5-1/3=23/30

21 slices from 3 cakes = 84 slices from cakes equivalent rates

Answers

Answer:

12 cakes.

Step-by-step explanation:

There are 21/3 = 7 slices from each cake.

84 / 7 = 12.

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