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3 years ago

When f(x) = -3, what is x?

Mathematics

1 answer:

kap26 [50]3 years ago

4 0

The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown". In x + 2 = 7, x is a variable, but we can work out its value if we try!

Hope this helps

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Noah Invested $2500 in an account paying 3.5% simple interest. How much was his account

Galina-37 [17]

<h2>>> Answer </h2>

_______

$\:$

$2.500 × 3,5% = $87.500

Soo :

$87.500 × 5

= $437.50 (B.)

3 0

3 years ago

Read 2 more answers

Give one combination of two factors whose product is 0.24, if one of the factors is a whole number greater than 1.

vitfil [10]

Answer: There are a lot of answers to this product. Some of them include (in the format (w, x), where w is the whole number, and x is the factor you must multiply it by to get 0.24):

(2, 0.12), (3, 0.08), (4, 0.06), (6, 0.04), and so on.

Step-by-step explanation: Well, you could just assign the smallest who number greater than 1 to one of the factors, which is 2. Now you just have to multiply that by another factor to get 0.24. To do this, you could set up an equation like this:

2*x=0.24

Next, you would divide both sides by 2 to cancel out the 2 on the left side of the equation, leaving you with:

x=0.12

There you have it!

Now you can check your work by multiplying 2 and 0.12, and you will get 0.24!

You can do the same thing with other whole numbers, such as 3 and 4, and complete the same process to find the decimal factor that multiplies to 0.24.

5 0

3 years ago

When x=-3, then y=______

dem82 [27]

Answer:-1

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

22. Abnormalities In the 1980s, it was generally believed that congenital abnormalities affected about 5% of the nation’s childr

Vinvika [58]

Answer:

Step-by-step explanation:

Set up null and alternate hypothesis

H0: p =0.05

Ha: p>0.05

(One tailed test at 5% level)

Sample size n =384

Sample proportion p = 46/384 =0.1198

p difference = 0.1198-0.05 =0.0698

Std error = $\sqrt{\frac{0.1198*0.8702}{384} } =0.0165$

Test statistic = 4.23

p value = 0.000012

Since p<0.05, we reject null hypothesis

There is more than 99.95% probability that proportion is more than 0.05

We accept the claim that the risk has increased.

6 0

3 years ago

18. Dylan's mother tells Dylan he must spend

Klio2033 [76]

Answer:

Dylan is playing anywhere from 3.5 hours to 9.5 hours of electronic games on week days.

Step-by-step explanation:

(least estimated amount of hours played each week) 13-9.5=3.5

(highest estimated amount of hours played each week)19-9.5=9.5

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3 0

3 years ago