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Galina-37 [17]
3 years ago
6

Write the value of a in terms of b if the line joining (b,20) and (4,a) has a slope of −5 .

Mathematics
1 answer:
Sidana [21]3 years ago
8 0
The correct answer is -4^5-7/4
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Please Help<br> please and thank you!
tatuchka [14]

Answer:

Step-by-step explanation:

cube means 3D  square.. right?

so for volume  we want the height x width x length.. make sense?

since each edge is 9'  

the volume is 9^{3} = 729  ft^{3}

7 0
3 years ago
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Evaluate 3^-3 x 3^4 x 3 x 3^-5 Answers<br> a. -27<br> b. 1/27<br> c. -81<br> d. 1/81
Sauron [17]
The answer is b. 1/27
3^-3=1/27 and 3^4=81. 1/27×81=3. 3×3=9. 3^-5=1/243. 1/243×9= 1/27. The answer is b. 1/27.
8 0
3 years ago
If x varies as y and if x=20 when y=9 , find x when y=18​
andrezito [222]

Answer:1/2 y

Step-by-step explanation:

We can solve this using ration reasoning:  

x

2

x

1

=

y

2

y

1

Explanation:

If  

x

varies directly with  

y

(written  

x

∝

y

), then doubling  

y

means doubling  

x

, so the rations of final values and initial values will be the same:

x

2

x

1

=

y

2

y

1

In this case,

x

2

9

=

24

18

x

2

=

9

⋅

24

18

=

12

Or, intuitively, if  

x

∝

y

and  

x

=

9

when  

y

=

18

, we can conclude that

x

=

1

2

y

and  

1

2

of 24 is 12.

3 0
3 years ago
PLEASE HELP IM SO CONFUSED!!!!! I attached a photo
nadezda [96]
It would be 5^-1

Because 5^7 • 5^5 = 5^12

And dividing would be subtract so 12 - 13 = -1
4 0
3 years ago
If f(x)=3x^2 and g(x)=4x^2+1, what is the degree of (f0g)(x)
Oxana [17]

Answer:

6⃣

Step-by-step explanation:

3 + 24x² + 48x⁶; take the highest degree term possible.

5 0
3 years ago
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