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3 years ago

Hurry pleaseeeeeeeeeeeeeeeeeeeeeee

Mathematics

2 answers:

tiny-mole [99]3 years ago

7 0

The answer is c because

kykrilka [37]3 years ago

4 0

70 is your correct answer

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W+8= -3<br> Solve for w I need help

tresset_1 [31]

Answer:

$w=-11$

Step-by-step explanation:

$w+8=-3\\\\w+8-8=-3-8\\\\\boxed{w=-11}$

Hope this helps.

5 0

3 years ago

What is : x=29-3(9-4)<br> Please show work

anzhelika [568]

Answer:

Step-by-step explanation:

29-3(5)

29-15

X=14

8 0

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

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

∝ = 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 $\sqrt{\frac{1580^2 }{20 } +\frac{2350^2 }{20 } }$ ------

8 0

3 years ago

troy is going to spain and needs to convert his dollars to euros. He knows that when he goes, $5.00 is equivalent to about 3.45

astraxan [27]

Answer:

Step-by-step explanation:

3.45/5=0.69

0.69x$125=86.25

0.75x$125=93.75

93.75-86.25=$7.5

Troy would get $7.50 more than he would have if the exchange rate had stayed at .69

7 0

3 years ago

Why does a plant only need to use a portion of its energy and not the entire thing?

vlabodo [156]

Answer:

Because All organisms, including humans, need energy to fuel the metabolic reactions of growth, development, and reproduction. But plants can't use light energy directly for their metabolic needs. And half of there energy is light energy so it must first be converted into chemical energy through the process of photosynthesis.

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers