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user100 [1]
2 years ago
7

4.A system of equations is shown below. Find the solution by using substitution. y = 3x + 6 y = x + 2 O (0,2) 0 (0,-2) O (2,0) O

(-2, 0)​
Mathematics
1 answer:
shtirl [24]2 years ago
6 0

Answer:

0,2

Step-by-step explanation:

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1. A man has 5 grandchildren, 4 girls and 1 boy. He thinks this is unusual. If the probability that any child born
mojhsa [17]

Answer:

6.25%

Step-by-step explanation:

To know the final probability that this has happened, we must multiply the probability of each event, they tell us that the probability that it is a girl is 1/2 and this happened 4 times, therefore:

(1/2) ^ 4 = 0.0625

that is, the probability that 4 girls are born is 6.25%

an unusual probability is considered when it is less than 5%, therefore, although it approaches this figure, it is not unusual

4 0
3 years ago
2x – 3y = 18<br> Solve for y.
Nataly [62]

Answer:

y= -6+2/3x

Step-by-step explanation:

2x-3y=18

Minus the 2x from both sides

-3y=18-2x

Then divide both sides by -1

-3y÷-1=18÷-1 -2x÷-1

Lastly divide both sides by 3

3y÷3= -18÷3+2x÷3

7 0
3 years ago
Find the axis of symmetry for y=3x^2 +5x-7
slamgirl [31]
A = the number before x^2 = 3
b = the number before x = 5
To find the axis of symmetry: -b/2a
x = -5/6

5 0
3 years ago
Noah reads the problem, “Evaluate each expression, giving the answer in scientific notation.” The first problem part is: 5.4×105
muminat

Answer:5.4×105+2.3×104.

Step-by-step explanation:

8 0
3 years ago
Two cylinders are shown below. Which cylinder has the greater volume? Use 3.14 for π. Round to the nearest hundredth. Use the dr
Lemur [1.5K]

Step-by-step explanation:

I think your question is missed of key information, allow me to add in and hope it will fit the original one.  

Please have a look at the attached photo.  

My answer:

To find which cylinder has the greater volume, we need to find out the volume of each one.

As we all know that the formula used to determine the volume of a cylinder is:

V = The base area*the height

<=> V = πr^{2}h (cubic units)

For example, in my attached photo, we will use this formula to find the volume of each one.

  • 1. Cylinder A:

The base area = πr^{2} = π3.5^{2} = 38.46 square in

The height = 8.5 in

=> the volume of Cylinder A

= The base area*the height

= 38.46*8.5

= 326.91 cubic in

  • 2. Cylinder B:

The base area = πr^{2} = π2.7^{2} = 22.89 square in

The height = 11 in

=> the volume of Cylinder A

= The base area*the height

= 22.89*11

= 251.79  cubic in

Hence, Cylinder B has the greater volume

6 0
3 years ago
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