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guajiro [1.7K]
3 years ago
6

HELP HELPP PLEASEEEE!

Mathematics
2 answers:
umka21 [38]3 years ago
8 0

Answer:

Step-by-step explanation:

volume of pyramid with square base=a^2(h/3)

84=a^2*7/3

84*3/7=a^2

252/7=a^2

36=a^2

\sqrt{36=a

6=a

therefore length=6

Ganezh [65]3 years ago
6 0
The length is b 12 !
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Select expression that is mathematically equivalent to xy−z+ (a - b) X c. y - 2 O
Elden [556K]

Question:

Select expression that is mathematically equivalent to

\frac{x}{y-z} + (a-b)*c

a) x/y - z + (a - b) * c

b) x/(y - z) + (a - b) * c

c) x/y - z + a - b * c

d) x/(y - z) + a - b * c

Answer:

x/(y - z) + (a - b) * c

Step-by-step explanation:

Given

\frac{x}{y-z} + (a-b)*c

Required

Determine its equivalent

Start by writing y - z in bracket;

\frac{x}{y-z} + (a-b)*c

becomes

\frac{x}{(y-z)} + (a-b)*c

When - is used as divide, it is equivalent to /

The given expression can then be rewritten as

x/(y - z) + (a - b) * c

Hence;

<em />\frac{x}{y-z} + (a-b)*c<em> is equivalent to </em>x/(y - z) + (a - b) * c<em />

3 0
3 years ago
What is the diameter of a circular swimming pool with a radius of 8 feet?
Alenkasestr [34]
We know that,

diameter is twice the radius, I.e d = 2r

Now d = 2(8)ft = 16 feet
5 0
2 years ago
What is 10.1 = 8+7m plsssssss i neeed help
Dahasolnce [82]

Answer:

m= 0.3

Step-by-step explanation:

10.1 = 8 + 7m

-8     -8

2.1 = 7m

2.1/7 = 0.3

3 0
3 years ago
Read 2 more answers
The product of a number and 5
steposvetlana [31]
Pretty sure it would be 5x u less theres more to the problem
4 0
3 years ago
Please be kind and help me with​ this question!<br> WARNING: only if your good at math thank you #3
Alexxx [7]

First of all, look at the figure, The ABC orientation is changed from clockwise to counterclockwise, so an odd number of reflections are involved.

Second, look at the answer choices. Right away, you notice that the last choice (E) involves two reflections. That cannot be the transformation you see. Since that is what the question is asking for, the appropriate choice for the transformation NOT done is ...

... E. reflection across the x-axis followed by a reflection across the y-axis

_____

I have to admit, I went through each of the choices to see if it would work to produce the image you see. All choices except E will do that. All that work turned out to be unnecessary.

6 0
4 years ago
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