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Anna11 [10]
3 years ago
5

To simplify the express 1/2 (60+8)Martha used which property in step1

Mathematics
1 answer:
Basile [38]3 years ago
5 0

Answer:

34

Step-by-step explanation:

BODMAS (Bracket, Division, Multiplication, Addition, Subtraction )rule

First we solve brackets :

60+8=68

1/2(68)= 34

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Please please help me!!!!!
Maru [420]

Answer:

(12, 487)

Step-by-step explanation:

y = 3.7x + 442 ----› Eqn. 1

y = 14.4x + 312 ----› Eqn. 2

Substitute y = (3.7x + 442) into eqn. 2.

y = 14.4x + 312 ----› Eqn. 2

3.7x + 442 = 14.4x + 312

Collect like terms

3.7x - 14.4x = -442 + 312

-10.7x = -130

Divide both sides by -10.7

x = 12.1495327

Substitute x = 12.1495327 into eqn. 1.

y = 3.7x + 442 ----› Eqn. 1

y = 3.7(12.1495327) + 442

y = 486.953271

The solution to the system is rounded to the nearest integer:

(12, 487)

7 0
3 years ago
(20 pts) (PLZ HELP)(ANSWER UNDER 10MINS PLZ)Caroline is playing on a swing at the playground. The swing's motion is shown in the
Zolol [24]

To begin with, the amplitude of the sine curve, according to the graph, is 70 at the maximum. So far far what you know is

y = 70 sin(something)

Next a full sine wave occurs after 15 seconds approximately. That means after 15 second, you should get 2*pi. Call the values along the x axis = t

y = 70*sin(t/15 * 2*pi) That should be your full answer. Check it out. Where is the maximum? It is just under 4 seconds. It's an estimation. It's not easy to read, but call it 3.9

y = 70*sin(3.9/15 * 2pi) Multiply 2 * 3.9

y = 70* sin(7.8/15 * pi) Multiply 7.8 * pi: Use 3.14 for pi

y = 70 * sin(24.49/ 15)

y = 70* sin(1.633) Make sure you are in radians for the next step.

y = 70*0.99806 = 69.86 inches. which is pretty close to 70.

If this is homework, be sure and point out that the graph is not really accurate and that the end number on the x axis should be 24 not 22.

y = 70 sin (t/15 * 2pi) <<<< answer.


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4 years ago
Marisol graphed a scatter plot of the number of hours she rode her
maks197457 [2]

Answer:

lolololololololoolololo

Step-by-step explanation:

6 0
3 years ago
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How to find the new interquartile range of the numbers 9,10,11,12,16,20,20
UNO [17]

10 is ur range

hope this helps

6 0
3 years ago
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The midpoint of overlineAB is M(1, -3). If the coordinates of A are (4, -7) what are the coordinates of B ?
Mashutka [201]

Answer: B(8, 1)

Step-by-step explanation:

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3 years ago
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