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3 years ago

0.14% or 7/20 or 0.014 or 1.4 Which is the greatest?

Mathematics

2 answers:

STALIN [3.7K]3 years ago

8 0

Answer:

Step-by-step explanation:

vro its 1.4

1.4 is the only whole number

Stels [109]3 years ago

3 0

Answer:

1.4 is the greatest.

Step-by-step explanation:

1.4 is the only number that is greater than 1.

Hope this helps!

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Evaluate 1/2a^-4b^2 for a=-2 and b=4 A) 2 B) 1/2 C)3 D)4

shepuryov [24]

Answer:

The answer to your question is: letter B) 1/2

Step-by-step explanation:

Data

a = -2

b = 4

Equation

(1/2)a⁻⁴b²

Substitution

= (1/2)(-2)⁻⁴(4)²

= (1/2) (1 /2⁴)(4)²

= 1/2 (1/16) (16)

= 16 / 32

= 1 / 2

5 0

3 years ago

A national dental association conducted a survey to find the average (mean) amount of time dentists spend on dental fillings per

eduard

Answer:

The probability of finding a sample mean less than 18 hours is 0.0082

Step-by-step explanation:

To find the probability of finding a sample mean less than 18 hours, we need to calculate the z-score of this sample mean 18. And the probability of finding a sample mean less than 18 hours is P(z<z(18)).

Z-score can be calculated as follows:

z(18)= $\frac{X-M}{\frac{s}{\sqrt{N} } }$ where

X is the sample mean (18 hours)

M is the average hours dentists spend per week on fillings (20 hours)

s is the standard deviation (10 hours)

N is the sample size (144)

Putting the numbers, we get:

z(18)= $\frac{18-20}{\frac{10}{\sqrt{144} } }=-2.4$

Using z- table we can find that P(z<z(18)) = 0.0082

4 0

3 years ago

Pls answer i will give brainliest

mezya [45]

Answer:6 over 4

Step-by-step explanation: you have to mark me brainly or going to have repoted you

4 0

2 years ago

BEST ANSWER GETS BRAINLIEST!!!!PLEASE HELLPP

Sonja [21]

1/3b = 4/5
Do the cross multiplication
1(5) = 3b(4)
5=12b
b=5/12

4 0

3 years ago

The period 7 (in seconds) of a pendulum is given by T = 2pi√( L divided by 32) where L stands for the length (in feet) of the pe

oksano4ka [1.4K]

Answer:

128 feet

Step-by-step explanation:

$t = 2\pi \sqrt{\frac{l}{32} }$

So now we will substitute the values of T and π into the equation.

$12.56 = 2 \times 3.14 \sqrt{ \frac{l}{32} }$

$12.56 = 6.28 \sqrt{ \frac{l}{32} }$

Divide both sides by 6.28

$2 = \sqrt{ \frac{l}{32} }$

Square both sides.

$4 = \frac{l}{32}$

Multiply both sides by 32

$l = 4 \times 32 \\ l = 128 \: feets$

5 0

1 year ago