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icang [17]
2 years ago
8

Anybody know this thankyou for any help!!!!!!

Mathematics
1 answer:
frutty [35]2 years ago
3 0

Answer:

a) 5/9

b) 7

c) 5

Step-by-step explanation:

For a)

One of the rules for logs is that if there is a logarithm subtracted by a logarithm and they have the same base, it is the same as the log with the same base and the arguments are divided:

log_{x}z -log_{x} y = log_{x} \frac{z}{y}

so for this problem, they have the same base, so you can use this rule:

log_{4} 5-log_{4}9 = log_{4}\frac{5}{9}

For b)

This is very similar, except instead of dividing the arguments, you want to multiply them.

So this is kind of saying "8 multiplied by x equals 56"

which is 7

For c)

If the argument has its own exponent, it can be brought to the front of the log like so:

log_{10}x^{y} = ylog_{10}x

This one is a bit tricky because you have to actually set 32 into an exponent form first.

32 = 2^{5}

Then we can bring that 5 in front of the logarithm

log_{6}2^{5} = 5log_{6}2

So the answer is 5

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The aspect of consistency means that ____. a. the association should be compatible with existing theory and knowledge b. the ass
Mama L [17]

Answer:

b. the association is consistent when results are repeated in studies in different settings using different methods

Step-by-step explanation:

-In statistics and research, internal consistency is typically a measure based on the correlations between different items on the same test (or the same subscale on a larger test).

-It measures whether several items that propose to measure the same general construct produce similar scores.

8 0
3 years ago
The diameter of a baseball is approximately 3 inches. what is its volume?​
Arada [10]

Answer:

About 14.14

Step-by-step explanation:

V = 4/3pi x r^3

To find the radius, divide the diameter by 2 (1.5)

Substitute 1.5 in place of r and solve the equation.

4 0
3 years ago
Read 2 more answers
-5=5(d+4)<br> Please give step by step
bekas [8.4K]

Answer:

  1. first distribute the 5 to the d and 4
  2. 5(d+4) then becomes 5d+20
  3. then subtract 20 from both sides of the equation
  4. -5=5d+20 is now -25=5d
  5. lastly divide 5 from both sides
  6. -25=5d is now -5=d
  7. hope this helps!
6 0
3 years ago
La profesora de matemáticas solicita a dos estudiantes que describan las cosas que les han parecido interesantes de los números
Makovka662 [10]

Answer:

Respuesta D

Step-by-step explanation:

Paola afirma: Todo número compuesto par, se puede escribir como la multiplicación de factores primos.

Esta afirmación es cierta, pues es un caso  de la afirmación de que todo número natural mayor que uno se puede escribir como multiplicación de números primos. A este proceso se le llama descomposición en factores primos.

Edwin afirma: Todo número compuesto impar se puede escribir como la suma de dos números primos.

Esta afirmación es falsa. Note que al sumar dos números impares de la forma 2k+1 y 2m+1 para k distinto de m, se obtiene

2k+1+2m+1 = 2(km+1)

Es decir, la suma de dos números impares es siempre par.

Note que a excepción de 2, todo número primo es impar. Para que esta afirmación fuera cierta, necesariamente tendría que pasar que cualquier número impar k se escriba de la forma p+2 donde p es un número primo. Esto es equivalente que para cualquier número impar k, el número k-2 sea primo.

Basta con dar un ejemplo para ver que esto no pasa. Tomemos k=11. En este caso, k-2 = 9, el cuál no es un número primo. Entonces 11 no se puede  descomponer como la suma de dos números primos.

5 0
3 years ago
Eric is adding water to a 60
Archy [21]

Answer:

After 2.5 minutes the pool will have 27 gallons of water.

Step-by-step explanation:

The pool has already 12 gallons of water and Eric wants to fill it to at least 27 gallons.

The water is flowing at a rate of 6 gallons per minute.

Let, after t minutes the pool will have at least 27 gallons of water.

Therefore, we can write the equation as  

27 = 12 + 6t

⇒ 6t = 15

⇒ t = 2.5 minutes.

Therefore, after 2.5 minutes the pool will have 27 gallons of water. (Answer)

8 0
3 years ago
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