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IRINA_888 [86]
3 years ago
8

If x = 3 and y = 6, evaluate the following expression: 100 – 3(3y - 4x)

Mathematics
2 answers:
Ronch [10]3 years ago
7 0
Step by step
1). 3 x y = 18
2). 4 x x = 12
3). 18-12 = 6
4). 6 x 3 = 18
5). 100-18 = 82
Verdich [7]3 years ago
5 0

Answer:

100 – 3(3(6) - 4(3)) = 82

Step-by-step explanation:

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Find the value of x using trig please .....
iren [92.7K]

Answer:

8.090169944 or rounded 8.1

Step-by-step explanation:

Use SOH CAH TOA

Look at x and where it is and what you have.

First thing is to get an angle to use, 36, then to set up your equation.

___(36)=___

Figure out what you have.

You have the hypotonouse, 10, and need the adjacent,x, so you use the equation that involves H for hypotonouse and A for adjacent.

You set up your equation using COS, as you are using CAH.

Cos(36)=x/10

X is over ten sure to CAH C-cos A-adjacent and H-hypotonouse

Switch it around to make it equal to x

10*Cos(36)=x

You input it into your calculator. [10] [COS] [36] [ENTER] and you get the answer.

Round however is needed.

7 0
2 years ago
Please help me<br> Expressions
11111nata11111 [884]
1a= (2x+5)+3x+15

1b= (2(4)+5)+3(4)+15=40

2a= (3x+5)•(4x-3)

2b= (3(2)+5)•(4(2)-3)=55

2c= 2(x) or 2(2)


How I got 2c is the perimeter of the rectangle LMNP subtract from (2(2)+9)+(2(2)+9)=26 which in return means you subtract 30 from 26 and get 4 which is 2(2) or 2x
6 0
3 years ago
Ratios equivalent to 2:6.
Alexandra [31]
8:24
4:12
100:300

All you have to do is multiply both sides by the same number to get an equivalent ratio.
8 0
3 years ago
Write 8.34* 10^4 in standard from
Kamila [148]

Answer:

83,400

Step-by-step explanation:

Just carry the decimal point over to the right 4 places.

7 0
3 years ago
Read 2 more answers
How many pounds of iron are produced from 4,200 pounds of iron ore if the ratio of iron ore is 5/21
Ghella [55]
1,000. 4,200 / 21 = 200. 5 * 200 = 1,000
4 0
3 years ago
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