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OLga [1]
2 years ago
7

Please help with questions 1 and 2

Mathematics
1 answer:
Georgia [21]2 years ago
5 0

Answer:

1)

a) 4^1

b) 9^1

2)

a) 9^6

b) 4^6

hope it helps

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The number is greater than 0 and less than 0.75
Andreas93 [3]
0.25, 0.50, 0.74. It could be any of these numbers or any number between these numbers.
4 0
2 years ago
Read 2 more answers
The length of a photograph is 3cm less than twice the width. The area is 54cm^2. Find the dimensions of the photograph.
REY [17]
W= width
l= length= 2w-3

Area= length * width
A= lw
substitute l=2w-3 for l
54= (2w-3)(w)
54= 2w^2 - 3w
subtract 54 from both sides
0= 2w^2 - 3w - 54
factor the polynomial
0= (2w + 9)(w - 6)

Set each set of parentheses equal
to 0 and solve for width.

0=2w+9
-9=2w
-4.5= w NEGATIVE VALUE

0=w-6
6 cm=w

-4.5 is not the answer because it has a negative value. You cannot have a negative side of a photograph. So substitute 6 in to find length.

length= 2w-3
l= 2(6)-3
l= 12-3
l= 9 cm

CHECK:
w= 6cm
l= 9cm
Area= length * width
54= 6*9
54= 54

ANSWER: width= 6cm; length= 9cm

Hope this helps! :)
4 0
2 years ago
Slope=-2 Passing through (3,5) write the equation of the line in slope intercept form
padilas [110]
Let's use the point-slope formula here:

y - 5 = -2(x - 3).  That's it.  You could, of course, rewrite this in slope-intercept form, as follows:

y = 5 - 2x + 6,   or   y = -2x + 11, in slope-intercept form.
5 0
3 years ago
The quotient of three times a number and 8 is no more than 13
RideAnS [48]

Answer:

3n/8 ≤ 13

Step-by-step explanation:

8 0
2 years ago
Sorry about the bad quality :(
dmitriy555 [2]

Answer:

Yes, y varies directly with x, and the equation is y=1.6x.

Step-by-step explanation:

To check where there is a direct relationship between x and y, we need to check whether all the x,y pairs we have fit some rule:

y=k\times x.

For the first pair (x=4, y=6.4),

6.4=k\times 4

Therefore k = 1.6.

For the second pair (x=7, y=11.2),

11.2=k\times 7

Therefore k = 1.6.

For the third pair (x=10, y=16),

16=k\times 10

Therefore k = 1.6.

For the second pair (x=13, y=20.8),

20.8=k\times 13

Therefore k = 1.6.

So x does directly vary with y, and we have found out that k=1.6.

4 0
3 years ago
Read 2 more answers
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