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2 years ago

Could you tell me the answer about this?

Mathematics

1 answer:

wolverine [178]2 years ago

7 0

Answer:

x is 70°

Step-by-step explanation:

80 + 55= 135

180-135 = 45

45 +45 =90

180-90=90

80+80= 160

180-160= 20

20 +90= 110

180-110 = 70

x is 70

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How many cm are in 84.363 km

Studentka2010 [4]

Answer:

8,436,300 cm

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

For a population with a mean of u = 40 and a standarddeviation of o = 8, find the z-score corresponding toeach of the following

ivann1987 [24]

Solution:

Given the mean and standard deviation;

$\mu=40,\sigma=8$

The z-score formula is;

$z=\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}$

(a)

$\begin{gathered} x=34,n=1 \\ \\ z=\frac{34-40}{\frac{8}{\sqrt{1}}} \\ \\ z=-0.75 \end{gathered}$

(b)

$\begin{gathered} x=34,n=4 \\ \\ z=\frac{34-40}{\frac{8}{\sqrt{4}}} \\ \\ z=-1.5 \end{gathered}$

(c)

$\begin{gathered} x=34,n=16 \\ \\ z=\frac{34-40}{\frac{8}{\sqrt{16}}} \\ \\ z=-3 \end{gathered}$

5 0

11 months ago

quizlet "it is closed under addition and multiplication but not closed under subtraction or division."

deff fn [24]

Rational numbers are closed under addition ,multiplication but not closed under division

Rational number

Closure property

assume two rational numbers say x and y. the results of addition and multiplication operations give a rational number we can say that rational number are closed under addition and multiplication . For example

rational number are not closed under division as 1 and 0 are rational number but 1/0 is not defined but it is closed under addition and multiplication

that is 1+0 = 1 closed under addition

1*0 =0 closed under multiplication

but 1/0 is not defined so it is not closed under division

Hence Rational numbers are closed under addition ,multiplication but not closed under division

learn more of closure property here

brainly.com/question/28220649

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4 0

5 months ago

Louisa Hight 7 miles of a 21 mile trail what percent of the trail did she hike

slavikrds [6]

I believe she hike 33.33% of the trail