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MAVERICK [17]
3 years ago
15

You received $100 for Christmas. You want to buy some new shirts. The cost of each

Mathematics
1 answer:
never [62]3 years ago
8 0

Answer:

5 shirts

Step-by-step explanation:

100-25 is 75 and 75 ÷15 is 5

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For f (x) = 9 * 81^x evaluate f(-1/2)
LekaFEV [45]

Step-by-step explanation:

f(x) = 9 * 81^x

When x = -1/2,

f(-1/2) = 9 * 81^(-1/2) = 9 * (1/9) = 1.

8 0
2 years ago
Choose all of the values for x that are solutions to x < -2.
OverLord2011 [107]
I think the answer is E
7 0
3 years ago
0.0057 in scientific notation
Gelneren [198K]

Answer:

5.7*10^-3

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
student expanded an expression, as shown. Is the student's work correct? Explain why or why not. −6 ( 4x − 2 13 ) −6(4x) + 6 ( −
sleet_krkn [62]

Answer:

No, the student's work is not correct.

Step-by-step explanation:

Given : Student expanded an expression, as shown.

-6(4x-\frac{2}{13} )

-6(4x)+6(-\frac{2}{13} )

-24x-\frac{12}{13}

To find : Is the student's work correct?

Solution :

The expansion of student is not correct.

Follow the below steps to get correct solution and student mistake,

Step 1 - Write the expression,

-6(4x-\frac{2}{13} )

Step 2 - Apply distributive property, a(b+c)=ab+ac

=(-6)(4x)+(-6)(-\frac{2}{13})

Step 3 - Solve,

=-24x+\frac{12}{13}

The student was mistaken in step 2 in solving the sign.

4 0
3 years ago
Read 2 more answers
The length of a rectangle is 5 in longer than its width. if the perimeter of the rectangle is 34 in , find its area.
shtirl [24]
Area(A)= lw
perimeter(P)= 2w+2l= 34in
length(l)= w+5 
width(w)= w

1/2 P= 17= w+l
17= w+(w+5)
17= 2w+5
2w=12
w=6 in

l= w+5
l= 6+5
l=11 in


A= lw= (11)(6)= 66in²

Answer:
Area of rectangle is 66 in².
3 0
3 years ago
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