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Solnce55 [7]
3 years ago
12

I need the expression it the answer. Please help me. 10 points.

Mathematics
1 answer:
tensa zangetsu [6.8K]3 years ago
6 0
On number 1, it is 5-2, not 2-5.
On number 2, 3(4+12).
On number 3, (15/3)+10
On number 4, 2+6*4
On number 5, it is correct
On number 6, 2(8-2)
On number 7, it is correct
On number 8, (8*1/4)+11
Hope this helps
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What is a 6% sales tax for a pair of $85 jeans
alexira [117]

Answer:

Hey there the answer is $5.10 but if you need the full price it is $90.10

Step-by-step explanation:

3 0
3 years ago
Find f(g(3)) given:<br> *<br> f (x) = 2x2 – 1<br> g(x) = 3x<br> h(x) =<br> j(x) = x - 5
bezimeni [28]

Answer:

161

Step-by-step explanation:

Given the functions

f (x) = 2x^2 – 1

g(x) = 3x

we are to find f(g(3))

First look for the composite function f(g(x))

f(g(x)) = f(3x)

f(3x)  = 2(3x)² - 1

f(3x)  = 2*9x² - 1

f(3x)  = 18x² - 1

f(g(x)) =  18x² - 1

Substitute x  = 3 into the result

f(g(3)) = 18(3)² - 1

f(g(3)) = 18*9- 1

f(g(3)) = 162-1

f(g(3)) = 161

Hence f(g(3)) is 161

5 0
3 years ago
A classroom is 20 feet long. The office is 82% longer than the classroom. How long is the office?
enyata [817]

Answer:

The length of the office is  36.4 ft

Step-by-step explanation:

The length of the classroom  =  20 ft long

The length of the office =  20 ft + 82% of the classroom length

Now, 82 % of classroom length  =  82 % of 20 ft

⇒ \frac{82}{100}   \times 20  =  16.4

or, 82% of 20 ft = 16.4 ft

⇒The length of the office  = 20 ft + 16.4 ft  = 36.4 ft

Hence, the length of the office =  36.4 ft

4 0
3 years ago
Find the outlier of the data set<br> 3.1, 5.3, 4.3, 0.7, 5.6, 5.2, 5.8, 5.4
Lelechka [254]
An outglier is a data item which is much bigger/smaller than other data items.

The data item arranged is 0.7, 3.1, 4.3, 5.2, 5.3, 5.4, 5.6, 5.8
From the data 0.7 is much smaller than other data items.
6 0
3 years ago
8.4.49 A cow is tethered to one corner of a square​ barn, 19 feet by 19 ​feet, with a rope 160 feet long.​ (See the illustration
SashulF [63]

Answer:

20096 ft^2

Step-by-step explanation:

We are given that

Length of rope=l=160 feet

Radius of quadrant of circle=r=160 feet

We have to find the  maximum grazing area of the cow.

We know that

Area of quadrant of circle=\frac{1}{4}\pi r^2

Where \pi=3.14

Using the formula

Area grazed by cow=\frac{1}{4}\times 3.14(160)^2

Area grazed by cow=20096 ft^2

4 0
4 years ago
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