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3 years ago

Evaluate the following expression using the values given:

Mathematics

1 answer:

Alecsey [184]3 years ago

4 0

Is the 3x2 an exponent?

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Resuelve el problema aplicando las estrategias de solución de problemas.

Stells [14]

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6 0

3 years ago

Recall the equation for a circle with center (h,k) and radius r. At what point in the first quadrant does the line with equation

IgorC [24]

Answer:

At intersection

x=2.68

y=5.34

Step-by-step explanation:

Equation of circle with center (h,k) and radius r is

$(x-h)^{2}+(y-k)^{2}=r^2\\\\With\,\, center\,\,(0,4)\,\, and\,\, r=3\\\\(x-0)^{2}+(y-4)^{2}=3^2\\\\x^2+(y-4)^{2}=9---(1)\\\\Equation\,\,of intersecting\,\,line\\y=0.5x+4---(2)$

To find point of intersection:

From (2)

$x=\frac{y-4}{0.5}=2(y-4)\\\\x^2=4(y-4)^{2}\\\\Put\,\,in\,\,(1)\\\\4(y-4)^{2}+(y-4)^{2}=9\\\\5(y-4)^{2}=9\\\\y-4=\frac{3}{\sqrt{5}}\\\\y=1.34+4\\\\y=5.34\\\\x=2(5.34-4)\\\\x=2(0.34)\\\\x=2.68$

At intersection

x=2.68

y=5.34

This point of intersection can be checked in graph attached below

3 0

3 years ago

Is it true or false that you can compare irrational numbers using rational approximation?

bija089 [108]

Answer:

The same is true for comparing irrational and rational numbers. By finding a rational approximation of the irrational numbers, we can compare values such as and . For these numbers we may have to go to a three decimal places for our approximation and the use of a calculator would make sense.

Step-by-step explanation:

hope this helps!!!!!!!

6 0

3 years ago

Lance baked a pie. Justin are 2/3 of the pie, and Joey had 1/4 of the pie. How much pie is left?

OleMash [197]

Answer:1/12

Step-by-step explanation:

do 1/4+2/3

find the lcm=12

3/12+8/12=11/12

so after this do 12/12-11/12

you should get 1/12

6 0

3 years ago

at the craft store, Alan bought a bag of orange and green marbles. the bag contained 25 marbles, and 40% of them where orange. h

krek1111 [17]

Answer:

There are 10 orange marbles

Step-by-step explanation:

There are 25 marbles in the bag

40% are orange

To determine the number of orange marbles, we multiply the total number of marbles by the percent that are orange

25 *40% = number of orange marbles

25*.40

There are 10 orange marbles

7 0

3 years ago