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2 years ago

(5x-25)(x+4)=0 What’s the answer

Mathematics

2 answers:

NemiM [27]2 years ago

7 0

Answer:

x = - 4, x = 5

Step-by-step explanation:

(5x - 25)(x + 4) = 0

Equate each factor to zero and solve for x

x + 4 = 0 ⇒ x = - 4

5x - 25 = 0 ⇒ 5x = 25 ⇒ x = 5

Allisa [31]2 years ago

6 0

Answer:

x = - 4, x = 5

Step-by-step explanation:

(5x - 25)(x + 4) = 0

Equate each factor to zero and solve for x

x + 4 = 0 ⇒ x = - 4

5x - 25 = 0 ⇒ 5x = 25 ⇒ x = 5

Hence, the correct answer is x=-4, x=5

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k0ka [10]

1) Describe the relationship of input and outpunt values for a composite functions.

The composition of the functions f(x) and g(x) is defined as:

(f ° g) (x) = f [g(x) ].

That means that the output of the function g(x) is the input of the function f(x).

2) Is the inverse of a function always a function?

No, the inverse of a function is not always a function.

Remember that a function cannot have two different outputs for one or more input.

The reason is that if the original function has two or more inputs that result in a same output, when you inverse the original function, the outputs of the original are the inputs of the inverse function and the inputs of the original are the outputs of the inverse. That implies that the inverse function would have some inputs related with more than one output, which is the negation of a function.

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3 years ago

-7x + 7 ≤ -56 in a word poblem

Gelneren [198K]

Answer:

x $\geq$ 9

Step-by-step explanation:

-7x $\leq$ - 63

7x $\geq$ 63

x $\geq$ 9

Tell me if I am wrong.

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3 years ago

8) Benny had 236 dollars to spend on 6 books. After

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Nun y hi n hbvhjh jj huff. I

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2 years ago

The temperature decreased by 11 degrees. enter an integer that represents the situation

dem82 [27]

If its talking about the temperature decreased it would be -11 but it's asking for an integer

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3 years ago

About % of the area under the curve of the standard normal distribution is between z = − 0.9 z = - 0.9 and z = 0.9 z = 0.9 (or w

prisoha [69]

Using the normal distribution, it is found that 63.18% of the area under the curve of the standard normal distribution is between z = − 0.9 z = - 0.9.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean $\mu$ and standard deviation $\sigma$ is given by:

$Z = \frac{X - \mu}{\sigma}$

The z-score measures how many standard deviations the measure is above or below the mean.

Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.

The area within 0.9 standard deviations of the mean is the <u>p-value of Z = 0.9(0.8159) subtracted by the p-value of Z = -0.9(0.1841)</u>, hence:

0.8159 - 0.1841 = 0.6318 = 63.18%.

More can be learned about the normal distribution at brainly.com/question/4079902

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1 year ago