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Radda [10]
3 years ago
14

How many significant digits are in the number 8.1000?

Mathematics
2 answers:
lara31 [8.8K]3 years ago
8 0
D.5 The number before the decimal point is not a zero, therefore, it is significant. All numbers after the zero are significant as well because the 1 followed by 3 zeros indicates the place of the numbers (hundreds, thousandth, ten thousandths.)

I hope this helps!
valkas [14]3 years ago
7 0
There are 5 significant digits. Significant digits are those that can be measurable - it indicates the accuracy of the measuring or the instrument of measuring. If the number is represented with four decimal numbers it means that the instrument is sensitive up to that detail in the measuring. 
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Find the non-extraneous solutions of the square root of the quantity x plus 6 minus 5 equals quantity x plus 1.
denis23 [38]
(x+6)^(1/2)-5=x+1
(x+6)^(1/2)=x+6
((x+6)^(1/2))^2=(x+6)^2
x+6=x^2+12x+36
0=x^2+11x+30
(-11+(11^2-4(1)(30))^(1/2))/2
(-11+((1)^(1/2))/2
(-11+1)/2=-5
(-11-1)/2=-6
((-6)+6)^1/2-5=(-6)+1
(0^(1/2))-5=-5
-6 is non-extraneous
((-5)+6)^1/2-5=(-5)+1
(1^1/2)-5=-4
1-5=-4
-4=-4
-5 is non-extraneous

3 0
3 years ago
Father says my son is five times older than my daughter. my wife is 5 times older that my son. I am twice old from my wife and a
Svet_ta [14]

Answer:

daughter 1. son 5. wife 25. father 50

4 0
3 years ago
Determine the measure of the angle labeled (4x+7)°.
Murrr4er [49]

Answer:

32

Step-by-step explanation:

First, combine like terms

4x+7=6x-9

     +9     +9

4x+16=-9

     -16   -16

Then divide by four to isolate x

4x=-25

x=-6.25

Plug in X to get the angle measure .

3 0
3 years ago
Read 2 more answers
Tia is making lemonade for a baseball tournament. The recipe calls for 2/3 cup of strawberries for each gallon of lemonade. She
antoniya [11.8K]

Given:

The recipe calls for \dfrac{2}{3} cup of strawberries for each gallon of lemonade.

Tia has 6 cups of strawberries.

To find:

The number of gallons of lemonade she can make.

Solution:

We have,

\dfrac{2}{3} cup of strawberries for = 1 gallon of lemonade

1 cup of strawberries for = \dfrac{1}{\frac{2}{3}} gallons of lemonade

                                        = 1\times \dfrac{3}{2} gallons of lemonade

                                       = \dfrac{3}{2} gallons of lemonade

6 cup of strawberries for = 6\times \dfrac{3}{2} gallons of lemonade

                                         = \dfrac{18}{2} gallons of lemonade

                                        = 9 gallons of lemonade

Therefore, 9 gallons of lemonade she can make by using 6 cups of strawberries.

7 0
3 years ago
Use the quadratic formula to solve for the roots of the following equation.<br> x 2 – 4x + 13 = 0
Artyom0805 [142]
  • Quadratic Formula: x=\frac{-b\pm \sqrt{b^2-4ac}}{2a} , with a = x^2 coefficient, b = x coefficient, and c = constant

With our equation, plug in the values:

x=\frac{4\pm \sqrt{(-4)^2-4*1*13}}{2*1}

Next, solve the exponent and multiplications:

x=\frac{4\pm \sqrt{16-52}}{2}

Next, solve the subtraction:

x=\frac{4\pm \sqrt{-36}}{2}

Next, factor out i (i = √-1):

x=\frac{4\pm \sqrt{36}i}{2}

Next, solve the square root:

x=\frac{4\pm 6i}{2}

Lastly, divide and <u>your answer is:</u>

x=2\pm 3i

5 0
3 years ago
Read 2 more answers
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