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max2010maxim [7]
3 years ago
14

Please solve

=100" align="absmiddle" class="latex-formula"> Thank you
Mathematics
1 answer:
mel-nik [20]3 years ago
8 0
Answer: x= log18 (10) +1/2
x= 1.29664

Good luck !
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What is the volume of a cube with an edge length of 7 centimeters?
crimeas [40]
Volume of a cube is a side length cubed

So 7*7*7

Answer is 343 centimeters
3 0
3 years ago
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(02.05)Figure RST is reflected about the y-axis to obtain figure R’S’T’:
Naddik [55]

Answer:

The measure of the angle R is equal to the measure of angle T

Step-by-step explanation:

5 0
3 years ago
Social media is popular around the world. Statista provides estimate of the number of social media users in various countries in
amm1812

Answer:

Kindly check explanation

Step-by-step explanation:

The data table :

Use of SM _UK _China _ Russia _US _ col total

Yes ______480 __215 ___343 __640 _ 1678

No _______320 _ 285 ___357__ 360 _ 1322

Row Total__ 800 _500 __ 700_ 1000_ 3000

H0 : p1 = p2 = p3 = p4

H1 : p1 ≠ p2 ≠ p3 ≠ p4

Test statistic :

χ² = Σ(observed - Expected)² / Expected

Expected value of each cell = (Row total * column total) / N

N = grand total

Expected Values:

447.467 _279.667 _ 391.533 _ 559.333

352.533 _ 220.333 _ 308.467 _ 440.667

χ²=(2.36536+14.9527+6.01605+11.6337+3.00232 18.9793+7.63611+14.7665) = 79.352

Degree of freedom, df = (row-1)*(column-1) = (2 - 1) * (4 - 1) = 1 * 3 = 3

Using the Pvalue from Chisquare calculator :

Pvalue(79.352, 3) = 0.00000000001

Decision region :

Reject H0 ; If Pvalue < α

α = 0.05

Since 0.000000001 < 0.05 ; Reject H0 and conclude that not all population proportion are equal.

Sample proportion :

Phat = number of yes, x / total

For UK, Phat = 480/800 = 0.6

For China , Phat = 215/500 = 0.43

For Russia , Phat = 343/700 = 0.49

For US, Phat = 640/1000 = 0.64

7 0
3 years ago
What is the slope of the line that passes through the points M (-3,5) and N (1,8)
zysi [14]

Answer:

m=3/4

Step-by-step explanation:

See the attached above.

Hope it helps :)

4 0
3 years ago
EXPERTS/ACE/GENIUSES/TRUSTED HELPERS HELPP!!
noname [10]
Hi,

The answer to your question is either A or B. 

The y-intercept is at point (0,60). All the other options (C and D) do not make sense and just aren't logically. 

The y-intercept (0,60) literally shows that if a student studies 0 hours they can expect to score a 60 on the test. 

Thus, you're answer is option B. 


Faith xoxo
7 0
3 years ago
Read 2 more answers
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