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emmainna [20.7K]
3 years ago
13

The difference between forty two and three time a number “n”

Mathematics
1 answer:
kotegsom [21]3 years ago
4 0

Answer:

42-3n

Step-by-step explanation:

The difference between forty two and three time a number “n” as an expression would be written as 42-3n.

Difference represents subtraction.

Three times a number is a number multiplied by 3. (3n)

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If the area is 27 meters & 6 meters is the height what is the length ?
bezimeni [28]
Area= legnth times width
or sometimes
area=legnth times height
area=measure1 times measure 2 on a flat plane
dependson the names

area=27
height=6
area=legnth times height
subsitute
27=legnth times 6
divide both sides by 6
27/6= legnth
simplified to 4 and 3/4
legnth=4 and 3/4 meter
subsitute
8 0
3 years ago
Rewrite the expression using distributive property 8(4x+6y-2z)
storchak [24]
8(4x+6y-2z)
32x+48y-16z
Hope this helps!
5 0
3 years ago
Read 2 more answers
If triangle FGH, FG=8.7, FH=4.5 and GH=6.1, Which is the smallest angle of the triangle
jolli1 [7]

∠G is the shortest

Step-by-step explanation:

Given is a ΔFGH

FG = 8.7

FH = 4.5

GH = 6.1

The triangle will be formed with three angles

F, G and H

"The side opposite to the largest angle of the triangle is the largest"

Similarly, The side opposite to the shortest angle is the shortest.

Converse of this postulate will be:

The interior angle opposite to the shortest side of the triangle is the smallest.

The triangle formed is attached in the form of a picture.

The angle opposite to FH will be the shortest.

Hence,

∠G is the shortest

Keywords: Angles, triangles

Learn more about angles at:

  • brainly.com/question/7128279
  • brainly.com/question/702593

#LearnwithBrainly

7 0
4 years ago
Convert 0.5 lbs to grams
Luda [366]

Answer:

226.796

Step-by-step explanation:

3 0
4 years ago
(CO 4) In a sample of 8 high school students, they spent an average of 24.8 hours each week doing sports with a sample standard
AveGali [126]

Answer:  

(22.12, 27.48)

Step-by-step explanation:

Given : Significance level : \alpha: 1-0.95=0.05

Sample size : n= 8 , which is a small sample (n<30), so we use t-test.

Critical values using t-distribution: t_{n-1,\alpha/2}=t_{7,0.025}=2.365

Sample mean : \overline{x}=24.8\text{ hours}

Standard deviation : \sigma=3.2\text{ hours}

The confidence interval for population means is given by :-

\overline{x}\pm t_{n-1,\alpha/2}\dfrac{\sigma}{\sqrt{n}}

i.e. 24.8\pm(2.365)\dfrac{3.2}{\sqrt{8}}

24.8\pm2.67569206001\\\\\approx24.8\pm2.68\\\\=(24.8-2.68, 24.8+2.68)=(22.12, 27.48)

Hence, the 95% confidence interval, assuming the times are normally distributed.=  (22.12, 27.48)

6 0
3 years ago
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