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lina2011 [118]
2 years ago
10

I need help with number three and four

Mathematics
2 answers:
scZoUnD [109]2 years ago
8 0

Answer:

3. 97

4. 16-6÷2

Step-by-step explanation:

5^2+2^3(9)

25+8(9)

25+72= 97

16-6÷2

10÷2+ 5

Shtirlitz [24]2 years ago
4 0

Answer:

4 is A

3 is C

Step-by-step explanation:

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How do you figure out 9a divide by a
Nikitich [7]

9/1 and then your answer would be 9 and then add the a so your full answer would be 9a

8 0
2 years ago
Find the range of ƒ(x) = –x + 4 for the domain {–3, –2, –1, 1}.
qaws [65]

Answer:

range {3, 5, 6, 7 }

Step-by-step explanation:

to find the range substitute each value of x from the domain into f(x)

f(- 3) = -(- 3) + 4 = 3 + 4 = 7

f(- 2) = - (- 2 + 4 = 2 + 4 = 6

f(- 1) = - (- 1) + 4 = 1 + 4 = 5

f(1) = - 1 + 4 = 3

range y ∈ { 3, 5, 6, 7 }


7 0
3 years ago
WILL MARK BRAINLIEST! Can someone please help! I don't understand some of these questions :(
PolarNik [594]

Answer:

18

Step-by-step explanation:

The interior and exterior angle of a polygon is supplementary

let interior be I

let exterior be E

I + E = 180

Since the interior angle is 8 times that of an exterior angle,

8E + E = 180          [replacing I with 8E]  

9E = 180                

E = 20                      

The exterior angle is 20 degrees

I + E = 180          

I + 20 = 180      

I = 160              

The interior angle is 160 degrees.

The equation to find the interior angle of a polygon with 'n' number of sides is:

I = ( (n − 2) × 180 ) ⁄ n

We know the interior angle, so plug it in and solve for n:

160 = ( (n − 2) × 180 ) ⁄ n      

160n = (n − 2) × 180            

160n = 180n − 360                  

-20n = -360                            

n = 18                                  

3 0
3 years ago
1. Write an expression for the operation described below.<br> w minus 3
pentagon [3]

Answer:

w-3

Step-by-step explanation:

Do I really have to explain this??

4 0
3 years ago
I really need the answers for these I don't understand this
Yuri [45]
I tryed my best to figure out what all of the numbers were. if i got any wrong then please tell me and i will put the right answer in the comments.

1) 3/5= 5/x   (cross multiply)
     3x=5(5)
     3x=25
       x= 25/3 -or- 8.33

2) 2/4=x/12<span>   (cross multiply</span><span>)
</span> 2(12)=4x
     24=4x
       6=x
3) 10/x=5/9<span>   (cross multiply</span><span>)
   10(9)=5x
       90=5x
       18=x
4) 5/5=x/18</span><span>   (cross multiply</span><span>)
 5(18)=18x
     90=18x
       5=x</span>
8 0
3 years ago
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