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4 years ago

Is 87 greater then 13.688

Mathematics

2 answers:

Ad libitum [116K]4 years ago

5 0

Yes 87 is greater than 13.688.

Hope this helped :)

soldier1979 [14.2K]4 years ago

4 0

Yes 87 is greater then 13.6889

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Five twelfths ot the participants at a conference brought laptop computers with them

elena-14-01-66 [18.8K]

The number of participants with laptop is 115 and without laptop is 161

Step-by-step explanation:

Total number of participants= 276

Participants with laptop = (5/12) 276

= 115

Participants without laptop= 276 - 115

= 161

5 0

3 years ago

Simplify 8/-3 ÷ -4/9 A. -8 B. -6 C. 6 D. 8

geniusboy [140]

Answer:

C. 6

Step-by-step explanation:

to divide by a fraction multiply by the recirpocal of that fraction.

8/3 ÷ 9/4

reduce the numbers with GCF 4 which equals 2/3 x 9

reduce the numbers with GCF 3 which equals 2x3= 6

4 0

3 years ago

PLS HELP ME!!!! I WILL MARK U!!!!! MATH!!!!

erica [24]

Answer:

-38

Step-by-step explanation:

y=2

z=-17

yz-y^2

(2)(-17)-(2)^2

-34-4

-38

4 0

3 years ago

Pam budgets $164 for fitness training. She buys a pair of hand weights for $12.65 and pays $10 per fitness class. Which inequali

NARA [144]

Answer:

Step-by-step explanation:

7 0

3 years ago

Question 6 (1.25 points)

Lisa [10]

Answer:

Test statistic Z= 1.713

The calculated Z- value = 1.7130 < 2.576 at 0.01 level of significance

Null hypothesis is accepted

There is no difference between the mean annual salary of all lawyers in a city is different from $110,000

Step-by-step explanation:

Step(i):-

A researcher wants to test if the mean annual salary of all lawyers in a city is

different from $110,000

Mean of the Population μ = $110,000

Sample size 'n' = 53

Mean of the sample x⁻ = $114,000.

standard deviation of the Population = $17,000,

Level of significance = 0.01

Null hypothesis :

There is no difference between the mean annual salary of all lawyers in a city is different from $110,000

H₀: x⁻ = μ

Alternative Hypothesis : x⁻ ≠ μ

Step(ii):-

Test statistic

$Z = \frac{x^{-}-mean }{\frac{S.D}{\sqrt{n} } }$

$Z = \frac{114000-110000}{\frac{17000}{\sqrt{53} } }$

Z = 1.7130

Tabulated value Z = 2.576 at 0.01 level of significance

The calculated Z- value = 1.7130 < 2.576 at 0.01 level of significance

Null hypothesis is accepted

There is no difference between the mean annual salary of all lawyers in a city is different from $110,000

4 0

3 years ago