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Nastasia [14]
3 years ago
9

Determine if the statement is always, sometimes, or never true. A square is a rhombus.

Mathematics
1 answer:
Rasek [7]3 years ago
4 0
 a Rhombus is has four equal sides but NO right angles, therefore, NO
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Solve each equation. check your solution. <br> -1/2x-7=-11
cupoosta [38]
I'll offer you a deal in return for your 5 points:  I'll solve it . . . . You check it.

<u>-1/2x - 7  = -11</u>

Add  7  to each side:            -1/2 x  =  -4

Multiply each side by  2 :      - x  =  -8

Multiply each side by  -1 :     <em> x  =  8</em>

Take it Allalala !

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3 years ago
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What is the rise,run and slope??
RSB [31]

Answer:

y axis over x axis is the right answer

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3 years ago
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Easy points rn, wats 1+1 wrongs answers only
riadik2000 [5.3K]

Answer:

1+1= 11

Step-by-step explanation:

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A credit reporting agency claims that the mean credit card debt in a town is greater than $3500. A random sample of the credit c
Lera25 [3.4K]

Answer:

Claim is false

Step-by-step explanation:

Claim : A credit reporting agency claims that the mean credit card debt in a town is greater than $3500.

H_0:\mu \leq 3500\\H_a:\mu = 3500

n = 20

Since n <30

So we will use t test

Formula : t =\frac{x-\mu}{\frac{s}{\sqrt{n}}}

s = standard deviation = 391

x = 3600

n = 20

t =\frac{3600-3500}{\frac{391}{\sqrt{20}}}

t =1.14

Degree of freedom = n-1 = 20-1 = 19

α=0.10

So, using t table

t_({\frac{\alpha}{2},d.f.}) = 1.72

t critical > t calculated

So we accept the null hypothesis

Hence we reject the claim that the mean credit card debt in a town is greater than $3500.

7 0
3 years ago
What is the expression (a^2+b^2)^2 is equivalent to
netineya [11]
<span>(a^2+b^2)^2
since (a+b)^2=a^2+2ab+b^2, substitute a with a^2 and b with b^2, which yields:
a^4+2(a^2*b^2)+b^4</span>
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