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Murrr4er [49]
2 years ago
11

What is -4(z + 3) - 4(5 - 4z) simplified?

Mathematics
2 answers:
WITCHER [35]2 years ago
6 0

Answer:

12z-32

Step-by-step explanation:

Simplify the expression.

viva [34]2 years ago
6 0

Answer:

4z-20

Step-by-step explanation:

reorder the terms,then distribute -4 through the parentheses,remove unnecessary parenthesis,calculate the product.collect like terms

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Suppose you are told that a distribution is said to be approximately normal because outliers have skewed the data. List the poss
andrew-mc [135]

Answer:

Step-by-step explanation:

Outline are values which are entirely different from those remaining values in a data set. These extreme values can skew an approximately normal distribution by skewing the distribution in the direction of the outliers and this makes it difficult for the data set to be analyzed.

Its effect is such that the mean becomes extremely sensitive to extreme outliers making it possible that the mean is this not a representative of the population and this theoretically affects the standard deviation.

8 0
1 year ago
Maria has 14 pencils, Ted has 9 pencils, Tom has 12 pencils, Lucinda has 13 pencils, and Jumana has 12 pencils. How can they red
Alisiya [41]

5 people.

14 + 9 + 12 + 13 + 12 = 60 total pencils.

60 pencils /  5 people = 12 pencils each.

7 0
2 years ago
Read 2 more answers
Given: △ABC, m∠A=120°, AB=AC=1<br> Find: The radius of circumscribed circle
Citrus2011 [14]

In Δ ABC, ∠A=120°, AB=AC=1

To draw a circumscribed circle Draw perpendicular bisectors of any of two sides.The point where these bisectors meet is the center of the circle.Mark the center as O.

Then join OA, OB, and OC.

Taking any one OA,OB and OC as radius draw the circumcircle.

Now, from O Draw OM⊥AB and ON⊥AC.

As chord AB and AC are equal,So OM and ON will also be equal.

The reason being that equal chords are equidistant from the center.

AM=MB=1/2 and AN=NC=1/2  [ perpendicular from the center to the chord bisects the chord.]

In Δ OMA and ΔONA

OM=ON [proved above]

OA is common.

MA=NA=1/2  [proved above]

ΔOMA≅ ONA [SSS]

∴ ∠OAN =∠OAM=60° [ CPCT]

In Δ OAN

\cos60=\frac {AN}{OA}

\frac{1}{2}=\frac{\frac{1}{2}}{OA}

OA=1

∴ OA=OB=OC=1, which is the radius of given Circumscribed circle.





4 0
1 year ago
The rectangular playground in tim's school is three times as long as it is wide. the area of the playground is 75 square meters.
qwelly [4]
Let x be the width of the playground, then 3x is the length of the 
<span>playground

х * 3х = 75
3x</span>² = 75
x² = 25
x = 5 m (width)
5*3=15 m (length)

Perimeter = 2(5+15) = 2*20 = 40 meters.
8 0
2 years ago
In a recent survey of dog owners, it was
siniylev [52]

Answer:

1749

Step-by-step explanation:

You would set up a proportion that says 901/x = 34/100. You would cross multiply to get that 34x = 90100. You would divide 90100 by 34 to get 2650. Then do 2650 - 901 to get 1749.

6 0
2 years ago
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