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kolezko [41]
3 years ago
10

Zack's science teacher gave each student in his class 15.0 grams of an unknown substance to identify. Each student was required

to verify the mass of their substance by taking four measurements. Which of Zack's measurement was the most accurate of the four recorded? A) 14.99 grams B) 15.012 grams C) 15.0122 grams Eliminate D) 15.05 grams
Mathematics
2 answers:
balandron [24]3 years ago
8 0
14.99 grams
<span>Accuracy is how close a measured value is to the actual or known value.</span>
iVinArrow [24]3 years ago
3 0
I would say 14.99. I don't quite know on this one but I think it is this one because is you take off the .0 its just 15 and if you look at the options you could say that 14.99 is the best because its the closest without going over. With me I would rather go a little under than over, and with the numbers being so close, I would say that's the answer. 

Hope I was some kind of help. If I wasn't sorry I haven't done that assessment yet so I'm not 100% percents sure. I'm more like 99.9%. <span />
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Please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!ASAP
diamong [38]

The ordered pair of the given equation will be ( 3, 6 ) and ( -3, 18).

<h3>What is a function?</h3>

A function is defined as the expression that set up the relationship between the dependent variable and independent variable.

The given functions are:-

F(x) =x²-2x+3

F(x) = -2x + 12

When we plot the graph of the function we will see that the line -2x +12 cut the parabola at points ( -3, 18 ) and ( 3, 6 ) so these are the ordered pairs of the two functions. The graph of the functions is also attached with the answer.

To know more about function follow

brainly.com/question/25638609

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6 0
2 years ago
Solve for x: the quantity of x plus 4 over 3 = 2.
defon

Answer:

x =2

Step-by-step explanation:

(x+4) /3 = 2

Multiply each side by 3

(x+4) /3  *3= 2*3

x+4 = 6

Subtract 4

x+4-4 = 6-4

x =2

8 0
3 years ago
Read 2 more answers
An observer on top of a 50-foot tall lighthouse sees a boat at a 7° angle of depression. To the nearest foot, how far is the boa
Yuri [45]

Answer:

407.22 foot is the boat from the base of the lighthouse

Step-by-step explanation:

Given the statement: An observer on top of a 50-foot tall lighthouse sees a boat at a 7° angle of depression.

Let x foot be the distance of the object(boat) from the base of the lighthouse

Angle of depression = 7^{\circ}

\angle CAB = \angle DCA = 7^{\circ}       [Alternate angle]

In triangle CAB:

To find AB = x foot.

Using tangent ratio:

\tan (\theta) = \frac{Opposite side}{Adjacent Base}

\tan (\angle CAB) = \frac{BC}{AB}

Here, BC = 50 foot and \angle CAB =7^{\circ}

then;

\tan (7^{\circ}) = \frac{50}{x}

or

x = \frac{50}{\tan 7^{\circ}}

x = \frac{50}{0.1227845609}

Simplify:

AB = x = 407.217321 foot

Therefore, the boat from the base of the light house is, 407.22'





5 0
3 years ago
The negative effects of a recession would be reduced by which fiscal policy decision?
Elis [28]

Answer:

The negative effects of a recession would be reduced by which fiscal policy decision?

A. incurring a budget deficit which is used to retire debt held by the public

<h3>B. incurring a budget surplus and allowing that surplus to accumulate as idle Treasury balances</h3>

C. incurring a budget surplus, which is used to retire debt held by commercial banks

D. incurring a budget deficit by borrowing from the public and increasing expenditures

Step-by-step explanation:

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3 0
3 years ago
Multiple fraction them simply 2/50 x5/18
Vika [28.1K]
2 x 5/ 50 x 18

10 / 900

Divide both by 10

1/90
5 0
3 years ago
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