4 years ago

Estimate the sum of 327+419+173 ASAP

Mathematics

2 answers:

kodGreya [7K]4 years ago

7 0

I believe it is 912 my apologies if it's wrong.

expeople1 [14]4 years ago

3 0

Answer: 900

Step-by-step explanation: 300+400+200

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Are 10x -3+ 2x -5 and 4(3x-2) equivalent

NikAS [45]

Simplify the first one
12x-8
Simplify the second one
12x-8
They're the same

7 0

4 years ago

Read 2 more answers

Solve this question fast....in the attachment

avanturin [10]

Answer:

z = 4

y = -1

x = 2

Step-by-step explanation:

x - y = 3

Therefore => x = 3 + y

y + 2z =7

Therefore => y= 7 - 2z

We have the equation :

2x + 3y + 4z = 17

2(3 + y) + 3(7 - 2z) + 4z = 17

6 + 2y + 21 - 6z +4z = 17

2(7 -2z) - 2z + 27 = 17

14 - 4z - 2z + 27 = 17

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3 years ago

The manufacturer of a smart watch claims that individuals who pay attention to how many steps they take per day will inadvertent

drek231 [11]

Answer:

Hello your question is incomplete attached below is the complete question

answer : 1596 ± 2.861 $\sqrt{\frac{1580^2 }{20 } +\frac{2350^2 }{20 } }$ ------ ( A )

Step-by-step explanation:

I will use excel function to resolve this question

Determine the 99% confidence of interval for the difference in mean number of steps by all people

∝ = 0.01

critical value ( t ) = 2.861 ( = TINV ( 0.01, 19 )

Given that :

S1 = 1580

S2 = 2350

n1 = 20

n2 = 20

Difference in mean = x1 - x2 = 1596

Margin of Error = t * $\sqrt{\frac{S^2_{1} }{n_{1} } +\frac{s^2_{2} }{n_{2} } }$

∴ 99% confidence of interval

= 1596 ± 2.861 $\sqrt{\frac{1580^2 }{20 } +\frac{2350^2 }{20 } }$ ------

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3 years ago

NEED HELP QUICK!!!!!!!!!!!!!!!

Ne4ueva [31]

The answer is - 1.5. subtract -2.5 by -1.5

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3 years ago

Select all the irrational numbers. 1 16 2 V35 7T 0.54

Natali5045456 [20]

Answer:

$\sqrt{35}$ , $\pi$ , and 0.54

Step-by-step explanation:

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3 years ago