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coldgirl [10]
3 years ago
14

Given the right triangle shown, which of the following represents the value of Cos C?

Mathematics
1 answer:
GarryVolchara [31]3 years ago
3 0

Answer:

where is the pic

Step-by-step explanation:

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what is the equation of the line that is perpendicular to 5x+6y=16 and passes through the point (-5,7)?
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Answer:

y=6/5x+13

Step-by-step explanation:

6y=-5x+16

Divide by 6

y=-5/6x + 8/3

Slope: 6/5 (opposite reciprocal)

7=-5(6/5)+b

7=-6+b

b=13

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7 0
3 years ago
1) Andy’s father is 25 years older than him and his sister’s age is twice the age of Andy. If the total of their ages is 53 year
rodikova [14]

Answer:

Andy is 7 and Andy's father is 32

Step-by-step explanation:

I used the guess and check method, starting from Andy being 5.

If Andy was 5, his dad would be 30, and his sister would be 10. 5+30+10=45

Too low

If Andy was 6, his dad would be 31, and his sister would be 12. 6+31+12= 49

Too low again

If Andy was 7, his dad would be 32, and his sister would be 14. 7+32+14=53

Andy is 7 and his Father is 32

Another method you could use is to make an equation and solve.

A = Andy

S= Sister

F= Father

S=2A (Andy's sister is twice the age of Andy)

F=A+25 (Andy's father is 25 years older then Andy)

A+S+F=53 (The total of their ages is 53 years)

Substitute your variables

A+(2A)+(A+25)=53

Subtract 25 from both sides

A+(2A)+(A+25)=53

                 -25 -25

A+(2A)+(A)=28

Add up your variables

A+(2A)+(A)=28

4A=28

Divide to find A

4A=28

A=7

Now solve for the Fathers age

F=A+25

F=32

Andy is 7 and his Father is 32

8 0
3 years ago
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