3 years ago

Evaluate the expression [(12x2.4) -(8.4*0.6)] +27-5.1

Mathematics

1 answer:

MariettaO [177]3 years ago

6 0

Answer:45.66

Step-by-step explanation: Simplify the expression.

Hope this helps you out! ☺

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Help me factor this completely

Tanya [424]

-12z^4 (x y^2 z^3 + 1)

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3 years ago

the average age of four men is 40. If the sum of the ages of three of them is 115, what's the age of the fourth man?

pashok25 [27]

Answer:

Step-by-step explanation:

if 1 man is 37

and 1 man is 43

the 3rd man is 45

they add to 115

to average 40, we gotta add 35

this old mans giving u that!

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2 years ago

Tom and Bob have a total of 49 toys if Bob has 5 more toys than Tom, how many toys does each one have

pickupchik [31]

49 + 5 = 54

So the answer is 54

5 0

3 years ago

Read 2 more answers

During the grand opening of the T-Shirt Shack at the Madera County Emu Farm, four of the emus broke through the fence and attack

Irina-Kira [14]

Given :

p = 0.68

margin of error, E = 0.1

99% confident interval

alpha, α = 1 - 0.99

= 0.01

$\frac{\alpha }{2}=\frac{0.01}{2} = 0.005$

∴ $z_{\alpha/2}=z_{0.005}=2.5758$ (z-critical value)

Sample size = $z_{\alpha/2} \times \frac{p(1-p)}{E^2}$

$=(2.5758)^2 \times 0.68 \times \frac{(1-0.68)}{0.1^2}$

$= 6.63475 \times 0.68 \times \frac{0.32}{0.01}$

= 144.37

= 145 (rounded off)

Therefore, there are 145 businesses does she need to sample to meet this criteria.

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3 years ago

Plz<br>I will mark brainliest

Montano1993 [528]

Answer:

a)10

b)-11.4

Step-by-step explanation:

you should find common denominator bit don't forget that they are negative

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3 years ago