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3 years ago

6 and three-fourths divided by 1 and two-thirds?

Mathematics

1 answer:

klasskru [66]3 years ago

7 0

Answer:

81/20

Step-by-step explanation:

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A number, x, decreased by the sum of 2x and 5 Please show work!!!!!! Thank you!!!!

NNADVOKAT [17]

The number is 3 times the sum of its digits

45 is added = 4+5=9 so,a common numbers in 3rd and 9th table
9,18,27,36,45...

27+45=72

2+7=9
or
4+5=9

3 0

4 years ago

A small university is concerned with monitoring its electricity usage in its Student Center. Specifically, its officials want to

valkas [14]

Answer:

Since p-value > ∝, H0 is accepted

Step-by-step explanation:

Calculating gives the following results.

ANOVA Table

Source DF Sum Mean F Statistic P-value

of Square Square

Groups 6 191.61 31.935 0.020 0.999

(b/w groups)

Error

(within 14 21736.08 1552.577

groups)

Total 20 21927.69 1096.385

1. H0 hypothesis

Since p-value > ∝, H0 is accepted.

Hence the averages of all groups considered to be equal.

Or the difference between the averages of all groups is not big enough to reject H0.

2. P-value

P-value equals 0.999. This means that if we would reject H0, the chance of type1 error (rejecting a correct H0) would be too high i.e (99.99%)

The bigger p-value supports H0.

3. The statistics

The test statistic F equals 0.020, which lies in the accepted range: [-∞ : 2.8477]

6 0

3 years ago

The quotient of 7/8 / 3/8

aleksandr82 [10.1K]

Answer:

7/3

Step-by-step explanation:

Keep Change Flip -KCF (not to be confused with kfc )

7/8 x 8/3

Keep Change Flip in other words, keep the first fraction change from division to multiplication (since multiplication is the opposite of division) and flip the second fraction

8 0

3 years ago

The answer to this equation

12345 [234]

Answer:

x=3

Step-by-step explanation:

We are given the equation

$log5x=log(2x+9)$

This can be rewritten as

$log5x-log(2x+9)=0$

Now using the quotient rule for logarithms we can combine these two

$log(\frac{5x}{2x+9} )=0$

Next we can remove the log by using an inverse operation

$10^{log(\frac{5x}{2x+9} )} =10^0\\\\\frac{5x}{2x+9}=1$

Now we can solve for x

$\frac{5x}{2x+9}=1\\\\5x=2x+9\\\\3x=9\\\\x=3$

4 0

4 years ago

Find the area of the circle with the given radius or diameter. Use = 3.14. d=13

leva [86]

Area of a triangle = $\pi r^{2}$
r = diameter/2
so area = pi * (13/2)^2
= 3.14*6.5*6.5 = 132.665

7 0

3 years ago