Barry has $2 less than Alex.

Which inequality is equivalent to -6x

Papessa [141]

Step-by-step explanation:

How to simplify

-6x (some sign, it didn't show in the question)30

Divide by -6 on both sides to isolate the variable.

30 divided by -6 is -5, so x=-5.

5 0

3 years ago

Environmentalists concerned about the impact of high-frequency radio transmissions on birds found that there was no evidence of

babunello [35]

Answer:

No, we cannot conclude anything about 0.10

Yes, they have made the same decision.

Step-by-step explanation:

Consider the provided information.

Part (A)

They based this conclusion on a test using α = 0.05. Would they have made the same decision at α = 0.10

A significance level of 0.05 indicates a 5% risk of concluding that a difference exists

From the normal table the critical value is Z(0.05) = 1.645 and we accept null hypothesis.

If α = 0.1, the critical value is Z(0.1)=1.28

1.28 is less than 1.645.

Therefore, we cannot conclude anything about 0.10

Part (B)

α = 0.01, the critical value is Z(0.01)=2.33

The critical value of α = 0.05 is 1.645 which is less than 2.33,

So we would again reject the null hypothesis.

Hence, they have made the same decision.

6 0

3 years ago

Simplify (shown in photo) A: 2^1/6 B: 2^2/3 C: 2^5/6 D: 2^7/6

mihalych1998 [28]

Your answer would be C

(√2)(∛2)

( $\sqrt[6]{2^3}$ )( $\sqrt[6]{2^2}$ )

$\sqrt[6]{2^5}$ = $\sqrt[6]{32}$

If you do 2^5/6

$\sqrt[6]{2^5}$ = $\sqrt[6]{32}$

5 0

3 years ago

Resuelve las siguientes ecuaciones y luego verifica A-)3x +1=7 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

Jennifer bought a piece of wire for a crafts project that was 8/9 of a yard

nadya68 [22]

7/18! This is because if you double both the top and bottom of 8/9 you get 16/18. Half of 18 is 9. So if we use half a yard, 9/18, and we subtract it from 16/18, we get 7/18!

6 0

3 years ago