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k0ka [10]
3 years ago
15

Please help me!!! I will reward brailiest

Mathematics
2 answers:
kvv77 [185]3 years ago
5 0

Answer:

9.5

Step-by-step explanation:

ycow [4]3 years ago
5 0

Answer:

9.5

Step-by-step explanation:

2.1+2.1+1+3.3+1 = 4.2 + 1 + 3.3 + 1 = 5.2 + 3.3 + 1 = 6.2 + 3.3 = 9.5

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LUCKY_DIMON [66]
The answer to this is 81
4 0
3 years ago
15 POINTS PLEASE HELP ASAP!!<br> (pls dont write random answers)
quester [9]

Answer:

its either d or a

Step-by-step explanation:

3 0
3 years ago
students were asked to simplify the expression . two students' work is given. student a step 1: step 2: step 3: 1 tan2 θ step 4:
Whitepunk [10]

Student B is wrong , student A is correct in simplifying the expression .

Expression B must be simplified to cot θ .

Formulas to be used are :

1 - sin^{2} θ = cos^{2}θ

 1 - cot^{2}θ = tan^{2}θ .

Since , location of error is step 3 , we will start from there

[ ( 1 - sin^{2}θ ) / sin θ ] / cos θ    = [ ( 1 - sin^{2}θ ) / sin θ ] * [ 1 / cos θ ]

                          = ( 1 - sin^{2}θ ) / ( sin θ * cos θ )

               = cos^{2} θ / ( sin θ * cos θ )

                   = cot θ .

To know more on trigonometry follow link :

brainly.com/question/24349828

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Since , the question is incomplete we assume it to be :

6 0
2 years ago
A woman is q years old while her son is p years old. the sum of their ages is equal to twice the difference of their ages. the p
Allisa [31]

Step-by-step explanation:

Given

q + p = 2(q - p)

as equation 1.

I used q-p as the difference as logically the woman will be older than her son.

Also given,

qp = 675

as equation 2.

Using equation 2,

q =  \frac{675}{p}

substitute this equation into equation 1.

\frac{675}{p}  + p = 2( \frac{675}{p}  - p) \\  \frac{675}{p}  + p =  \frac{1350}{p}  - 2p \\  \frac{675}{p}   -  \frac{1350}{p}  =  - 2p - p \\  - 3p =  -  \frac{675}{p}  \\    - 3p \times p =  - 675 \\  - 3 {p}^{2}  =  - 675 \\  {p}^{2}  =  - 675 \div  - 3 \\  {p}^{2} = 225 \\ p =  \sqrt{225}   \\  = 15

Substitute P into equation 2.

15q = 675 \\ q = 675 \div 15 \\  = 45

Therefore the woman is 45 years old while her son is 15 years old.

3 0
3 years ago
What is the x intercept of y= 4x+8
ankoles [38]
To find the x-intercept what you do is you plug in zero for Y:
0=4x-8
Then you would add 8 to the left side and x =2
7 0
4 years ago
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