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Sergeeva-Olga [200]
3 years ago
12

Dave says:

Mathematics
1 answer:
Nuetrik [128]3 years ago
8 0

There are 2 symmetry lines of a rectangle which are from its length and breadth. These two lines cut the rectangle in two similar halves which are mirror images of each other. If a rectangle is folded along its line of symmetry, it superimposes perfectly.

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If 3x = y - 5 and x = -4, then y = ? <br> A)-7 <br> B)3 <br> C)7 <br> D)17 <br> E)9
fredd [130]

Answer:

<h3>3×(-4) = y - 5</h3><h3>= ) -12 = y -5 </h3><h3>=) -12 +5 =y </h3><h3>=) -7 = y</h3>

<h2>y =-7</h2>

8 0
3 years ago
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Please help me I’m so lost !!!!
Tasya [4]

Answer:

4095

Step-by-step explanation:

\sum _{n=1}^63\left(4^{n-1}\right)\:

\sum _{n=1}^63\cdot \:4^{n-1}

Compute general progression:

\frac{3\cdot \:4^{\left(n+1\right)-1}}{3\cdot \:4^{n-1}}=4

r=4\\

a_1=3\cdot \:4^{1-1}

a_1=3

nth term is computed by:

r=4,\:a_n=3\cdot \:4^{n-1}

plug in the values n=6,\:\spacea_1=3,\:\spacer=4:

=3\cdot \frac{1-4^6}{1-4}

=4095

5 0
3 years ago
Dana buys and sells superhero themed shirts, jeans and designer dresses. She bought two shirts for $ 5.00 each and ater sold the
Yanka [14]
I think if you do 9.00 + 9.00 to get 18.00 then do 17.00 + 17.00 to get 34.00 then do 41.00 + 41.00 to get 82.00 your answer will be 18.00+34.00+82.00= 134 so that’s your answer. Pls make me the brainliest
4 0
3 years ago
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A student needs to make a circular cardboard piece with an area between 154 square inches and 616 square inches. The function f(
Sergio039 [100]

circular cardboard with an area between 154 in² and 616 in²

Radius is between 7 inches and 14 inches. ⇒ A) 7 < r < 14

√18 + √2 = √9 *2 + √2 = 3√2 + √2 = (3+1) √2  = 4√2

D) It is irrational and equal to 4 multiplied by the square root of 2.

3 0
3 years ago
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Carson purchased supplies for his computer for $64. The sales tax was $4.16. He gave the salesperson $80. How much change did he
krek1111 [17]
To work this out you need to do 80 - 64 - 4.16 = 11.48

he received $11.48 change
3 0
3 years ago
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