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Anarel [89]
3 years ago
10

Describe each polynomial expression by type and components based on the example shown.

Mathematics
1 answer:
REY [17]3 years ago
6 0

Answer:

Really am confused about this question.

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Guys plssssssss! I want to spend time today and tomorrow with my fam before they go back to Washington
Nezavi [6.7K]

Answer:

10) It increased by appoxamately 17%.

11) 255 decreased by 20%

12) 15 increased by 66\frac{2}{3}%

13) $9,450

14) $149.8

15) $238.5

Step-by-step explanation:

10) 170 is greater than 150 by 25. 25 is 16\frac{2}{3}% of 150, so it increased by appoxamately 17%.

11) 225 is decreased by 45. 45 is 20% of 100, so 255 decreased by 20%

12) 15 is increased by 10. 10 is 66\frac{2}{3} of 15, so 15 increased by 66\frac{2}{3}%

13) 5% of 9,000 is 450. 450 + 9,000 is $9,450

14) 7% of 140 is is 9.8. 140 + 9.8 = $149.8

15) 6% of 225 is 13.5. 225 + 13.5 = $238.5

3 0
3 years ago
Please Help ASAP!!!<br> Question in image below.
Luda [366]

Answer:

You know that XZ is 15 and the whole perimeter of the triangle is 50. WZ is going to be the same length as WX due to the lines saying that they are equal.

Your first step is to take 50-15=35, we did this because we already know the length of one side and can take that off from the whole.

The next step is to divide 35 by 2, because both sides are going to be the same length.

35/2=17.5

You final answer would be 17.5

Hope this helps ;)

4 0
3 years ago
Read 2 more answers
Jason's business computers need servicing. The expression 81x + 108 represents a contractor's total charges in dollars for fixin
kolbaska11 [484]

Answer:

2 hours

Step-by-step explanation:

Given

Contractor: 81x + 108

Electronic\ Store: 103x + 64

Required

Determine the hours when the charges are the same

To do this, we simply equate both expressions:

Contractor = Electronic\ Store

81x + 108 = 103x + 64

Collect Like Terms

81x - 103x = 64 - 108

-22x = -44

Divide both sides by -22

x =2

8 0
3 years ago
The lifetimes of a certain type of calculator battery are normally distributed. The mean lifetime is 400 days, with a standard d
Licemer1 [7]

Complete question :

The lifetimes of a certain type of calculator battery are normally distributed. The mean lifetime is 400 days, with a standard deviation of 50 days. For a sample of 6000 new batteries, determine how many batteries will last: 360 and 460 days

Answer:

0.67307

Step-by-step explanation:

Given that :

Mean, m = 400

Standard deviation, s = 50

Sample size, n = 6000

Obtain the standardized score :

Zscore =(x - m) / s

For X = 360

P(x < 360)

Zscore =(360 - 400) / 50

Zscore = - 40 / 50

Zscore = - 0.8

P(Z < - 0.8) = 0.21186

For X = 460

P(x < 460)

Zscore =(460 - 400) / 50

Zscore = 60 / 50

Zscore = 1.2

P(Z < 1.2) = 0.88493

P(Z < 1.2) - P(Z < - 0.8)

0.88493 - 0.21186

= 0.67307

5 0
3 years ago
Se tienen 224 plumas de color negro y 420 de color rojo. Se quiere ponerlas en cajas iguales, de tal manera que cada caja tenga
Goshia [24]

Answer:

La cantidad de plumas que se deben poner en cada caja para que se utilice el menor número posible de cajas es 28.

Requieres 8 cajas con plumas de color negro y 15 cajas con plumas de color rojo, necesitando 23 cajas en total.

Step-by-step explanation:

El divisor común  es un número que es divisor a la vez de dos o más números, es decir, es un divisor común a esos números.

Por lo que se denomina máximo común divisor o M.C.D al mayor número que divide exactamente a dos o más números a la vez. En otras palabras, el Máximo Común Divisor es el mayor de los divisores comunes de varios números.

Para calcular el M.C.D, se descompone cada uno de ellos en factores primos. El M.C.D. es el resultado de multiplicar los factores que se repitan en todas las descomposiciones, afectados por el menor exponente.

En este caso, los números 224 y 420 se descomponen en:

224= 2⁵*7

420= 2²*3*5*7

Entonces, el M.C.D entre 224 y 420 es calculado como 2²*7, que da como resultado 28. Esto indica que <u><em>la cantidad de plumas que se deben poner en cada caja para que se utilice el menor número posible de cajas es 28. </em></u>

Para el calculo de cantidad de cajas que se necesitan, primero es necesario saber cuántas cajas de cada color de plumas se necesitan. Para eso, debes dividir la cantidad de plumas que tienes por la cantidad de cajas por las que debes repartirlo:

224 plumas negras÷ 28= 8

420 plumas rojas÷ 28= 15

Por lo que <u><em>requieres 8 cajas con plumas de color negro y 15 cajas con plumas de color rojo, necesitando 23 (8+15) cajas en total.</em></u>

7 0
3 years ago
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