MATHEMATICS HIGH SCHOOL

I need help with this one

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

93808.57316 rounded to the nearest ten thousand is 90000

Answer 2

Answer:

Step-by-step explanation:

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On this chapter quiz for this course you can study for up to four hours If you don't study at all you will get a 70. One hour would give you an 80, the second hour increased your score to 89, the third to 92. If you studied the fourth hour your score would be 87. In which hour did diminishing returns set in? a. The second because your gain is less than the previous hour. b. The fourth because you had a drop in points in this hour. c. The third because your score peaked there. d. The first because the score was the lowest of the studying options.

Answers

Answer:

Step-by-step explanation:

Given that On this chapter quiz for this course you can study for up to four hours

Study time Marks expected Difference

0 80

2 89 9

3 92 3

4 87 -5

Thus we find when hours increase the scores also increase upto 3 hours but after that it starts decreasing.

Hence answer is

b. The fourth because you had a drop in points in this hour.

sherry had $125.05 in her checking account She made deposit of $28.35 and $78.88 how much money was in sherry account after the deposit

Answers

Answer:

$17.82

Step-by-step explanation:

$125.05 - 28.35 = 96.7 \n 96.7 - 78.88 = 17.82$

Answer: $232.48

Step-by-step explanation: an equation you could use would be:

125.25+(28.35+78.88)

Add parentheses: 28.35+78.88= 107.23

Add the rest: 125.25+107.23= 232.48

Robert can paint a room in 6 hours. Julio can paint a room in 8 hours.how long will it take for the two of them to paint a room together?

Answers

Robert paints 1/6 of a room in an hour.
Julio paints 1/8 of a room in an hour.
Working together, they can paint (1/6 + 1/8) room/hour =

      (4/24 + 3/24) room/hour =

7/24 of a room per hour.

7/24 of a room per hour means

   24 hours / 7 rooms =

   (24 / 7) (hour/room) =   (3 and 3/7) hour per room.

1/6+1/8=1/x
1/6*(6*8*x)+1/8(6*8*x)=1/x(6*8*x)
8x+6x=48
14x=48
divide each by 14
x=48/14
x= 3.43 roughly

(x^2 - x^(1/2))/(1-x^(1/2))

Answers

$\frac { \left( { x }^( 2 )-{ x }^{ \frac { 1 }{ 2 } } \right) }{ \left( 1-{ x }^{ \frac { 1 }{ 2 } } \right) }$

$\n \n =\frac { \left( { x }^( 2 )-\sqrt { x } \right) }{ \left( 1-\sqrt { x } \right) } \cdot 1$

$\n \n =\frac { \left( { x }^( 2 )-\sqrt { x } \right) }{ \left( 1-\sqrt { x } \right) } \cdot \frac { \left( 1+\sqrt { x } \right) }{ \left( 1+\sqrt { x } \right) }$

$\n \n =\frac { { x }^( 2 )+{ x }^( 2 )\sqrt { x } -\sqrt { x } -x }{ 1+\sqrt { x } -\sqrt { x } -x }$

$\n \n =\frac { -\sqrt { x } \left( 1-{ x }^( 2 ) \right) -x\left( 1-x \right) }{ \left( 1-x \right) }$

$\n \n =\frac { -\sqrt { x } \left( 1+x \right) \left( 1-x \right) -x\left( 1-x \right) }{ \left( 1-x \right) }$

$\n \n =\frac { \left( 1-x \right) \left\{ -\sqrt { x } \left( 1+x \right) -x \right\} }{ \left( 1-x \right) }$

$\n \n =-\sqrt { x } \left( 1+x \right) -x\n \n =-{ x }^{ \frac { 1 }{ 2 } }\left( 1+{ x }^{ \frac { 2 }{ 2 } } \right) -x$

$\n \n =-{ x }^{ \frac { 1 }{ 2 } }-{ x }^{ \frac { 3 }{ 2 } }-x\n \n =-\sqrt { x } -\sqrt { { x }^( 3 ) } -x$

x² - x^(1/2) = x²
1 - x^(1/2)

What are the coordinates of B and how is that the answer ?

Answers

Step-by-step explanation:

Point A = (-1, -3).

Midway of AB = (-3, 2).

Let Point B = (x, y).

Then (-1, -3) - (-3, 2) = (-3, 2) - (x, y).

=> (2, -5) = (-3-x, 2-y).

We have -3 - x = 2 and 2 - y = -5.

So x = -5 and y = 7.

Hence, point B = (-5, 7).

11. Una escuela telesecundaria tiene una pista de carreras que mide de kilómetro.Tres alumnas corrieron las siguientes distancias: Juanita: 1 vueltas, Esperanza
21 vueltas y Evelyn: 1650 m. ¿Cuántos metros corrieron Juanita y Esperanza?
¿Y cuántas vueltas dio Evelyn?

Answers

Answer:

Juanita and Esperanza run 400 meters and 8400 meters respectively and Evelyn make 4.125 laps.

Step-by-step explanation:

The complete question is: A telesecundaria school has a race track that measures one kilometer.

Three students ran the following distances Juanita: 1 laps, Esperanza 21 laps and Evelyn: 1650 m. How many meters did Juanita and Esperanza run? And how many laps did Evelyn make?

As we know that 1 meter = 0.0025 laps

So, the number of laps Evelyn make = 1650 $*$ 0.0025

= 4.125 laps

Also, 1 lap = $(1)/(0.0025)$ meters

1 lap = 400 meters

So, the meters that Juanita run = 1 $*$ 400 = 400 meters

Similarly, the meters that Esperanza run = 21 $*$ 400

= 8400 meters

Hence, Juanita and Esperanza run 400 meters and 8400 meters respectively and Evelyn make 4.125 laps.

Final answer:

Juanita ran 1 kilometer and Esperanza ran 21 kilometers. Evelyn ran 1 lap.

Explanation:

To find out how many meters Juanita and Esperanza ran, we need to add up their distances. Juanita ran 1 lap, which is equal to the length of the track. Since the track is 1 kilometer long, Juanita ran 1 kilometer. Esperanza ran 21 laps, so she ran 21 kilometers.

Evelyn ran 1650 meters. To find out how many laps Evelyn ran, we need to divide 1650 by the length of the track. Since the track is 1 kilometer long, Evelyn ran either 1 lap or 1.65 laps. However, we're told that Evelyn ran 1650 meters, so she ran 1 lap.

Learn more about Distances here:

brainly.com/question/33716087

#SPJ3

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A formal proof uses all of the following components except what?A.) theorems B.) a set of examples C.) geometry rulesD.) algebra rules

What is more precise 4.33g;4337mg

What is the range of each function given below?a. Let f(x) = 9x − 1.