indira predicts that the actual difference of 19-7.82 will be greater than the estamate of19-8 =11. is indira correct? explain how indira might have arrived at that prediction without subtracting the actual numbers.

Answers

Answer 1

Answer: 7.82 is a little less than 8 (it rounds to 8).

Therefore 19 - 7.82 will be a little more than 11

To be more accurate .82 is .18 away from 1

Therefore the exact answer would be 8.18

Related Questions

Algebra is a precursor for calculus because it will help students to be successful in the latter course.Which word is closest in meaning to the underlined word? precursor is the underlined word a.complex training b.preceding requirement c.brief introduction d.predominant trait
Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with mean mu equals 247 days and standard deviation sigma equals 16 days. Complete parts (a) through (f) below.
1 . The lengths of the legs of a right triangle are 25 cm and 60 cm. What is the length of the hypotenuse?A. 42.5 centimeters B. 65 centimeters C. 9.2 centimeters D. 35 centimeters D. 35 centimeters
Plz helpsolve for x: x/4≥−8
How do you find the length of arc and area of sector

The power generated by a wind turbine depends on the wind speed . The expression 800 v^3 gives the power in watts for a certain wind turbine at wind speed v in meters per second . If the wind speed triples , by what factor does the power generated by the wind turbine increase ? 2) Can you write the expression 49x^2y^2z^2 using only one exponent ? Show how or explain why not ?

Answers

Power = 800v³

If the speed triples, v is replaced by 3v.

Power = 800*(3v)³ = 800*27v³ = 27*(800v³)

The power increases by 27 times.

2) 49x²y²z²

The expression can be written using one exponent

49x²y²z² = 7²* x² *y² * z² = (7xyz)²

= (7xyz)²

1. it would increase by 27 times
in other words, 3^3 times

2. You can rewrite the expression using one exponent because each variable is being squared and multiplied by each other
if you had 3^2 x 4^2 it would be 144 (9 x 16)
same as if you had (3 x 4)^2 which is 12^2, which is also 144
the expression would be (7xyz)^2

Solve each system of equations by graphing y=-1/2x+5 and y=3x-2

Answers

just make the equations equal to each other. -0.5x+5=3x-2. Solve for x and find that it is 2, via simple algebra. Since you know x is 2, sub it in in either equation to find y. y should be 4. So the point that fits both equation is (2,4). This shows that the two graphs of these lines will intersect at this exact point.

If you were to graph these two lines, you ould see that the point of intersection is at (2,4) like we solved for.

Find the sum of 12/13 +(-1/3)

Answers

Answer:

23/39

Step-by-step explanation:

Step 1:

12/13 + ( - 1/3 )

Step 2:

36/39 - 13/39

Answer:

23/39

Hope This Helps :)

Let f(x)=−2x−7. Write a function g whose graph is a translation 6 units to the right of the graph of f

Answers

Answer:

$y=-2x+5$

Step-by-step explanation:

Translation of a Graph

If the graph of y=f(x) is translated a units horizontally and b units vertically, then the equation of the translated graph is:

$y -b=f(x - a)$

The function given in the question is

$f(x)=-2x-7$

We are required to translate it 6 units to the right, or a=6. No vertical translation is required, thus, the function whose graph is 6 units translated to the right is:

$y=-2(x-6)-7$

Operating:

$y=-2x+12-7$

$\boxed{y=-2x+5}$

Use the figure below to complete the following problem.Given:
H = 2x + 60
T = x + 30
HALT is a

∠A =

30
45
60

Answers

,H + <T = 180 ;
2x + 60 + x + 30 = 180 ;
3x + 90 = 180;
3x = 90;
x = 30 ;
<T = 60 ;
T and A are congruent angles ;
<A = 60
First choice is the right answer !

Answer: 60

I did the assignment, trust me.

The circles below are concentricWhat is the measure of the angle formed by the two secants?
What is the value of x?