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2 years ago

8

If n represents a number, then write an expression for three times the difference of the number and six increased by four times

the number.

2 answers:

Elenna [48]2 years ago

8 0

$3(n-6)+4n$

lbvjy [14]2 years ago

4 0

Answer:

divison and subtracion

Step-by-step explanation:

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Helppppp (10 points)

algol13

Answer:

x=

Step-by-step explanation:

1.first solve the hypotenuse of (12 squared+16 squared) = (Hy squared)

2.then find the square root of the Hypotenuse

${h}^{2} + {b}^{2} = {hy}^{2}$

$\sqrt{hy2}$

6 0

2 years ago

A sample of blood pressure measurements is taken for a group of adults, and those values (mm Hg) are listed below. The values

nika2105 [10]

Answer:

For systolic pressure data:

$\bar X =127.2\\\\S=17.91668\\\\CV=\frac{17.91668}{127.2}=0.14085$

For diastolic pressure data:

$\bar X =73.5\\\\S=12.54\\\\CV=\frac{73.5}{12.54}=0.17061$

Systolic pressure is slightly less variable, among individuals in the sample, than diastolic pressure.

Step-by-step explanation:

The coefficient of variation is defined as the percentage relative variation of a set of data with respect to its average. And it is calculated like this:

$CV=\frac{\bar X}{S}$

$S =\sqrt{\frac{1}{n-1} \sum_{i=1}^n (x_i-\bar{x})^2$

$\bar X={\frac{1}{n} \sum_{i=1}^n x_i$

For systolic pressure data:

$\bar X =127.2\\\\S=17.91668\\\\CV=\frac{17.91668}{127.2}=0.14085$

For diastolic pressure data:

$\bar X =73.5\\\\S=12.54\\\\CV=\frac{12.54}{73.5}=0.17061$

It is observed that the systolic pressure shows greater standard deviation but less coefficient of variation. This is due to the greater magnitude of its measurement scale.

Systolic pressure is slightly less variable, among individuals in the sample, than diastolic pressure.

7 0

2 years ago

Simplify this expression (a^8a^6)^1/7/a^2

ArbitrLikvidat [17]

Answer: 1

Step-by-step explanation: Whenever you take the power of a power, the find the answer you can multiply the two exponents, for example:

(x^3)^4 = x^12

We will use that here.

a^8a^6 = a^14

((a^14)^1/7) = (a^2)/a^2

Our answer is 1

7 0

3 years ago

I'm not sure if D is right

Rzqust [24]

Ratio and proportion

height :legnth of shadow=56:49 (man's shadow)
we assume the ratio is the same for the tower thing (obelisk)

so
56:49=x:28
conver tto fraction
56/49=x/28
times both sides by 28
1568/49=x
32=x
answer is 32ft

5 0

2 years ago

A cereal box is an example of_____ and ________

gayaneshka [121]

A cereal box is an example of a rectangular prism and a rectangle.

3 0

2 years ago