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fgiga [73]
3 years ago
7

Karif plans to use a 20% coupon on a $27.60 purchase

Mathematics
1 answer:
lawyer [7]3 years ago
6 0

Answer:

Hello! The answer is $22.08. Hope this helps.


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Are both 7 and -½ integers? why or why not?​
Tems11 [23]

Answer:

No. (-1/2) is not an integer

Integers involve all the no. +ve and -ve. which can be written without fraction. ie whole no. are counted as integers.

(-1/2) is a fraction

4 0
2 years ago
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(sinx-1)(sinx+cos^2x) multiply and simplify
sveta [45]
\bf [sin(x)-1][sin(x)+cos^2(x)]\\\\
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sin^2(x)+sin(x)cos^2(x)-sin(x)-cos^2(x)
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[sin^2(x)-cos^2(x)]+[sin(x)cos^2(x)-sin(x)]
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-[cos^2(x)-sin^2(x)]-[sin(x)-sin(x)cos^2(x)]
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-cos(2x)-sin(x)sin^2(x)\implies -cos(2x)-sin^3(x)
7 0
3 years ago
Y=? cm<br> A15<br> B.10<br> C.3<br> D.5
Gelneren [198K]
What is the question?
3 0
3 years ago
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PLS HELP WILL GIVE BRAINLIEST :)
Rus_ich [418]

Step-by-step explanation:

the slope intercept form is

y = ax + b

"a" being the slope, "b" being the y- intercept (which is the y-value when x = 0).

the slope here :

in the table x is always increasing by 2.

and y is always investing by 1.

so, the slope is 1/2

the y-intercept :

we need to find the y-value for x = 0.

but we don't have a data point with x = 0 in the table.

so, we have to extend the structure of the table to the left.

x decreases by 2 (making it 0), and y decreases by 1 (making it -1).

therefore, the y- intercept (b) is -1.

and the line equation is

y = (1/2)x - 1

not sure about "the other method".

there is the point-slope form of the equation :

y - y1 = a(x - x1)

again with "a" begin the slope, and (x1, y1) being a point on the line.

if we get the y-intercept in the table, then this point is (0, y1).

and the equation would be

y - y1 = ax

in our case

y + 1 = (1/2)x

and another method ?

sometimes people write

nx + my = c

in our case starting with the original equation

y = (1/2)x - 1

2y = x - 2

-x + 2y = -2

x - 2y = 2

6 0
2 years ago
Which numbers are rational numbers that are not integers?<br><br> 0,4,-2,2/3,-1.8,16,3.2,-5/4
Anna [14]

Answer:

-1.8, -5/4, 3.2, 2/3

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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