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elixir [45]
3 years ago
12

What is .000747 in scientific notation

Mathematics
2 answers:
Umnica [9.8K]3 years ago
6 0
The awnser is 7.47 you move the decimal over 4 spaces
Aleks04 [339]3 years ago
6 0
The exponent of 10 will be negative
Count the number od digits after the decimal point unitil you get to the first one that is > 0.  Here it is 4  so exponents is -4.

Answer is 7.47 * 10^-4
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Ellie drew ΔLMN, in which m∠LMN = 90°. She then drew ΔPQR, which was a dilation of ΔLMN by a scale factor of one half from the c
vaieri [72.5K]

Answer:

m∠P ≅ m∠L; this can be confirmed by translating point P to point L.

Step-by-step explanation:

Angle angle (AA) similarity postulate state that two triangles are similar if two of their corresponding angle is similar. The corresponding angle for each point of the triangles will be:

∠L=∠P

∠Q=∠M

∠N=∠R

Since the 2nd triangle made from dilation, it should maintain its orientation.

Option 1 is true, ∠P corresponds to ∠L. If you move/translate point P to point L, you can confirm it because their orientation is the same.

Option 2 is false, the triangle will be similar if ∠P=∠N but you can't confirm it with translation alone.

Option 3 and 4 definitely wrong because it speaking about length, not the angle.

6 0
2 years ago
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The lines below are parallel. If the slope of the green line is -2, what is the slope of the redline?
scoray [572]
D. -2, if the lines are parallel then the slope is the same but the y-int is different
3 0
2 years ago
Sheldon needs a pound of meat for a recipe he is planning to make next week. He sets aside a pound of meat and puts it in the fr
padilas [110]

Answer:

He needs to check his work more, and stop asking middle schoolers to do his cooking math.

Step-by-step explanation:

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2 years ago
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In the 1980’s, a clinical trial was conducted to determine if taking an aspirin daily reduced the incidence of heart attacks. Of
zubka84 [21]

There is enough evidence to conclude that taking aspirin cannot  reduces the chance of cancer.

Given sample size of patients take aspirin 11037, sample size of patients who have assigned placebo group be 11034. 104 doctors who take aspirin had a heart attack, 189 doctors had placebo had heart attacks.

First we have to form hypothesis.

H_{0} :p{1} -p_{2} =0

H_{1}:p_{1} -p_{2} < 0

We have to find the respective probabilities.

p_{1}=104/11037

=0.0094

p_{2}=189/11034

=0.0171

Now their respective margin of errors.

s_{1}=\sqrt{ {(0.0094*0.9906)/11037}

=0.0009

s_{2}=\sqrt{0.0171*0.9829}

=0.0011

Hence the distribution of the differences,they are given by:

p=p_{1} -p_{2}

=0.0094-0.0171

=-0.0077

S=\sqrt{s_{1} ^{2}+s_{2} ^{2}  }

=\sqrt{(0.0009)^{2} +(0.0011)^{2} }

=0.00305

z=(p -f)/S (In which f=0 is the value tested at the null hypothesis)

=(-0.0077-0)/0.00305

=-2.52

p value will be 0.005.

p value of 0.05 significance level.

z=1.96.

1.96>0.005

So we will reject the null hypothesis which means it cannot reduce the whole chance of becomming a heart attack.

Hence there is enough evidence to conclude that taking aspirin cannot  reduces the chance of cancer.

Learn more about t test at brainly.com/question/6589776

#SPJ4

6 0
1 year ago
Byron bought a keyless entry door lock that has the digits 0 through 9 on the keypad. He wants to choose a three-digit
kolbaska11 [484]

Answer:

the answer is 10,000

Step-by-step explanation:

thats what i put on the test and got it right

5 0
2 years ago
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