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allsm [11]
2 years ago
9

Car insurance companies want to keep track of the average cost per claim. The current data in use for Auto Insurance R Us is an

average of $2,200 for each claim with a standard deviation of $500. With this average, the company can stay competitive with rates but not lose money. However, the statistician for the company believes that the cost of the average claim has increased. He pulled 40 recent claims and found the average to be $2,350. Which most restrictive level of significance would suggest that the company should raise rates
Mathematics
1 answer:
anygoal [31]2 years ago
6 0

Answer:

The answer is 5%

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Suppose a designer has a palette of 8 colors to work with, and wants to design a flag with 2 vertical stripes, all different col
Vesna [10]

Answer:

For a flag with 2 different colours, there are 8 possible colours for the first colour to be chosen from and 7 possible colours (excluding the first colour already chosen) for the second colour to be chosen from, given that colours are different. Hence there are a total of 8 x 7 = 56 possible flags to be created.

Step-by-step explanation:

4 0
3 years ago
True or false.
valkas [14]

Answer:false

Step-by-step explanation:no constant rate of change in y and x values

8 0
3 years ago
Find the area of the figure to the nearest thousandth
riadik2000 [5.3K]

Answer:

Total Area = 236.715 sq ft

Step-by-step explanation:

this is a composite figure made up of a circle and a rectangle; find the area of each and then add them together

A(circle) = πr²

= π(7.5²)

= 176.715

A(rectangle) = 15(4) which is 60

Total Area = 236.715 sq ft

7 0
3 years ago
Find the x- and y-intercepts of the graph of 3x + 4y = 32. State your answers as
Aliun [14]

Answer:

  • (32/3, 0)
  • (0, 8)

Step-by-step explanation:

<u>The x- intercept is the point when y = 0:</u>

  • 3x + 4*0 = 32 ⇒ 3x = 32 ⇒ x = 32/3

<u>The y- intercept is the point when x = 0:</u>

  • 3*0 + 4y = 32 ⇒ 4y = 32 ⇒ y = 8
3 0
3 years ago
Read 2 more answers
Resuelve las siguientes ecuaciones y luego verifica<br> A-)3x +1=7<br> B-)2a-2=1+3a
jarptica [38.1K]

Answer:

A) x=2

B) a=-3

Step-by-step explanation:

La primera ecuación dada es,

A) 3x + 1 = 7

Reste 1 de ambos lados, tenemos

3x +1-1=7-1

\Rightarrow 3x=6

Dividir por 3 (ya que 3 es un número distinto de cero) de ambos lados, tenemos

\frac{3x}{3}=\frac {6}{3}

\Rightarrow x=2

Ahora, compruebe si x = 2 es la solución correcta o no.

El lado izquierdo de la ecuación dada es 3x + 1.

Ponga x = 2, tenemos

3\times2+1=7

Que es igual al lado derecho de la ecuación dada.

Por tanto, x = 2 es la solución correcta.

La segunda ecuación es

B) 2a-2=1+3a

Reste 3a de ambos lados, tenemos

2a-2-3a=1+3a-3a

\Rightarrow -a-2=1

Suma 2 de ambos lados, tenemos

-a-2+2=1+2

\Rightarrow -a=3

Multiplica por -1 (como -1 es un número distinto de cero) de ambos lados, tenemos

-a\times (-1)=3\times(-1)

\Rightarrow a=-3

Ahora, verifique si a = -3 es la solución correcta o no

El lado izquierdo de la ecuación dada es 2a-2.

Ponga a = -3, tenemos

2\times(-3)-2=-8

El lado derecho de la ecuación dada es 1 + 3a.

Ponga a = -3, tenemos

1+3\times(-3)=-8.

Aquí, al poner a = -3, el valor del lado izquierdo es igual al valor del lado derecho.

Por tanto, a = -3 es la solución correcta.

8 0
3 years ago
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