All categories

3 years ago

HIE

Mathematics

1 answer:

Nady [450]3 years ago

7 0

Answer:

y = 3x-2

Step-by-step explanation:

You might be interested in

6.2x + 8 = 3(1.4x -4) What are the steps to solve this problem?

Anettt [7]

Hello friend ,. I hope it's helps you

enjoy your day

5 0

3 years ago

Read 2 more answers

Rafael is taking a test that contains a section of 12 true-false questions. How many of the possible groups of answers to these

Klio2033 [76]

Answer: There are 495 possible different sets of answers the could contain exactly 8 correct answers of false.

Basically, we are looking for the number of different ways of selecting 8 objects out of a set of 12 objects. Our objects are answers of false and the set is the test.

This is a combination problem. The formula would be:

12! / (8! x 4!) = 495

8 0

3 years ago

A can of beans has surface area 337 cm2. It's heights is 11cm. What is the radius of the circular top?

Karolina [17]

Answer:

3.66 cm

Step-by-step explanation:

r = Radius of cylinder

h = Height of the cylinder = 11 cm

A = Total surface area of the cylinder = $337\ \text{cm}^2$

Total surface area of a cylinder is given by

$A=2\pi r^2+2\pi rh\\\Rightarrow A=2\pi r(r+h)\\\Rightarrow \dfrac{A}{2\pi}=r^2+rh\\\Rightarrow r^2+rh-\dfrac{A}{2\pi}=0\\\Rightarrow r^2+11r-\dfrac{337}{2\pi}=0\\\Rightarrow r^2+11r-53.64=0\\\Rightarrow 100r^2+1100r-5364=0\\\Rightarrow r=\dfrac{-1100\pm \sqrt{1100^2-4\times 100\left(-5364\right)}}{2\times 100}\\\Rightarrow r=3.66,-14.65$

So, the radius of the circular top is 3.66 cm.

6 0

3 years ago

In an experiment, a number cube is rolled 4 times. The number of times a 5 shows is recorded. Sixty trials of the experiment are

motikmotik

Answer:

Step-by-step explanation:

Given that in an experiment, a number cube is rolled 4 times. The number of times a 5 shows is recorded. Sixty trials of the experiment are run.

No of 5's Freq Prob

0 6 0.1

1 9 0.15

0 33 0.55

3 3 0.05

4 9 0.15

60 1

The above is the probability distribution of the discrete variable.

6 0

3 years ago

Can someone plz help ASAP brainless and points only if it’s correct

Kipish [7]

Answer:

i had the answer before ive done this before but i forgot

4 0

3 years ago