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Nana76 [90]
3 years ago
6

What is 23+41-7×398-15

Mathematics
1 answer:
Dimas [21]3 years ago
6 0
 This question is just a type of question that you honestly just need to punch into a calculator. However, if you just do a simple one-over-one addition of 23 and 41, then subtract, it gets even easier. Then, do another one-over-one but this time as subtraction when you take away the 7. Then you will do yet another one-over-one but for multiplication with your sum of your numbers after subtraction. Finally, do another one-over-one to get your final answer of 22,671. I will attach a picture of what this looks like as well as an illustrated one-over-one. Hope this helped!

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A train 182m long takes 14sec to cross a signal post .calculate speed in km/hr
lilavasa [31]

3600 \times 26 = 93600
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A farmer has 1,800 feet of fencing and wants to fence off a rectangular field that borders a straight river. he needs no fence a
astra-53 [7]
There are 2 short sides x and 1 long side y.

x+x+y=1,800
2x+y=1,800
y=1,800-2x

The area of the rectangle is A=x(1,800-x).


A is a function with variable x. Moreover it is a quadratic (second degree) function.

The graph of the function is a parabola which opens downwards, because the signs of the leading coefficients of the factors, multiply to minus:

(x)(-x)=-x^2.


This means that the highest point of the parabola, is its vertex V(h,k), so the function takes its largest value for x=h.


The roots of A=x(1,800-x) are x=0 and x=1,800, thus the x coordinate of the vertex, must be the midpoint of 0 and 1,800, that is 900.


Answer:

A=x(1,800-x)

largest area is when x=900

4 0
3 years ago
Read 2 more answers
If x equals 12, find the value of x2​
eduard

Answer:

24

Step-by-step explanation:

12 * 2 = 24

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En la casa de Juan, van a pedir pizza para la comida, pero cuando la van a pedir se dan cuenta que deben pedirla por perímetro o
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Responder:

La pizza con un perímetro de 100 cm es más grande ¿verdad?

Explicación paso a paso:

Deja que la pizza tenga forma circular.

Sea el área de la pizza = πd² / 4 y;

Perímetro de la pizza = πd

d es el diámetro de la pizza

Si la madre dice que el que tiene un perímetro de 100 cm es más grande, para estar seguros necesitamos obtener el diámetro de la pizza. La de mayor diámetro será la pizza más grande.

P = 100cm

100 = πd

d = 100 / π

d = 100 / 3,14

d = 31,85 cm

El diámetro de la pizza mamá es de 31,85 cm.

Si el padre dice que el que tiene un área de 100 cm² es más grande, obtengamos también el diámetro para estar seguros.

A = πd² / 4

100 = πd² / 4

400 = πd²

d² = 400 / π

d² = 400 / 3,14

d² = 127,39

d = √127,39

d = 11,29 cm

Por lo tanto, el diámetro de la pizza padre es de 11,29 cm.

Dado que el diámetro de la pizza madre es mayor que el de esa, la pizza con un perímetro de 100 cm es más grande, lo que demuestra que la madre tiene razón.

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The price of a
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Answer:

$31.5

Step-by-step explanation:

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