Help please idk how to do this

Answers

Answer 1

Answer:

I hope this helped and have a great day.

You need to times 2/3 twice

-2/-3 * -2/3

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A cube with side length m has a volume of 343 cubic centimeters. The following equation shows the volume of the cube.m^3 = 343m

What is the side length of the cube in centimeters?

Answers

The side length of the cube in centimeters is equal to 7.

Given the following data:

Volume of cube = 343 cubic centimeters.

To calculate the side length of the cube in centimeters:

How to calculate the volume of a cube.

Mathematically, the volume of a cube is given by the following formula:

$Volume = m^3$

Where:

m is the length of sides of the cube.

Substituting the given parameters into the formula, we have;

$343 = m^3\n\n$

Taking the cubic root of both sides, we have:

$m=\sqrt[3]{343}$

m = 7 centimeters.

Read more on volume of a cube here: brainly.com/question/25248189

Answer:

7 cm

Step-by-step explanation:

Given : A cube with side length m has a volume of 343 cubic centimeters.

To Find: What is the side length of the cube in centimeters?

Solution:

Volume of cube = $Side^3$

The side of the cube is m

So, Volume of cube of m = $m^3$

Since the volume of cube is 343 cubic centimeters

So, $m^3=343$

$m=\sqrt[3]{343}$

$m=7$

Hence the length of the cube is 7 cm.

On discovering that her family had a 70% risk of heart attack, Erin took a treadmill test to check her own potential of having a heart attack. The doctors told her that the reliability of the stress test is 67%. The test predicted that Erin will not have a heart attack. What is the probability after the test was taken that she will have a heart attack?0.4051
0.5010
0.4653
0.6632

Answers

Answer:

C. 0.4653

Step-by-step explanation:

This a conditional probability problem where Bayes theorem should be applied.

Applying Bayes theorem,

$P(\text{No heart attack}\ |\ \text{Correctly tested})=$

$\frac{P(\text{Correctly tested}\ |\ \text{No heart attack})\cdot P(\text{No heart attack})}{P(\text{Correctly tested})}$

$P(\text{Correctly\ tested}\ |\ \text{No\ heart\ attack})=67\%=0.67$

$P(\text{No\ heart\ attack})=1-P(\text{heart\ attack})=1-0.7=0.3$

$P(\text{Correctly\ tested})=[P(\text{No\ heart\ attack})* P(\text{Correctly\ tested})]+[P(\text{Heart\ attack})* (\text{Incorrectly\ tested})]$

$=[0.3* 0.67]+[0.7* 0.33]=0.432$

Putting the values,

$P(\text{No\ heart\ attack}\ |\ \text{Correctly\ tested})=(0.67* 0.3)/(0.432) =0.4653$

There is a probability of 0.4653 or 46.53% chance that she will not have a heart attack even though the test predicts that she will.

Answer:

C= .4653

Step-by-step explanation:

i just took the test and got it right

If 2+xi=(x+1)+i, what is the value of xand can you please show me the breakdown?

Thanks!

Answers

$2+xi=(x+1)+i\n\nxi-x=1+i-2\n\nx(i-1)=i-1\ \ \ \ /:(i-1)\n\nx=(i-1)/(i-1)\n\nx=1$

$2+xi=x+1+i\n xi-x=-1+i\n x(i-1)=-1+i\n x=(-1+i)/(i-1)=\nx =(i-1)/(i-1)\n x=1$

What is 2+x/5+x=7/8?

Answers

Answer:

x = - $(15)/(16)$

Step-by-step explanation:

2 + $(x)/(5)$ + x = $(7)/(8)$

Multiply through by 40 ( the LCM of 5 and 8 ) to clear the fractions

80 + 8x + 40x = 35

48x + 80 = 35 ( subtract 80 from both sides )

48x = - 45 ( divide both sides by 48 )

x = - $(45)/(48)$ = - $(15)/(16)$

5x=-y+6; x=1,2,3 step by step please

Answers

I hope this helps you

Benito had 10 days of vacation. he spent 1/5 of his vacation fishing. he spent 30% of his vacation at soccer camp. he spent the rest of the time at the beach. what percent of his vacation did benito spend at the beach?

Answers

50 percent of his vacation

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