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3 years ago

F(x) = 2x - 6, find f(10).

Mathematics

1 answer:

siniylev [52]3 years ago

6 0

Answer:

Step-by-step explanation:

use the given functions to set up and simplify f (10).

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-4x-8>-20

Art [367]

-4x - 8 > -20
Add 8 to both sides
- 4x > -12
Divide both sides by -4
**When you divide by a negative you must change the direction of the inequality sign**
x < 3
Letter C

5 0

3 years ago

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6. Eduardo Is thinking of a non-unit fraction with a single digit denominator

netineya [11]

Answer:

The fraction is $\frac{1}{4}$ .

Step-by-step explanation:

Eduardo Is thinking of a non-unit fraction with a single-digit denominator.

Assuming the fraction to be $\frac{1}{x}$ .

When Eduardo multiplies his fraction by 5 he gets a mixed number and when he multiplies his fraction by 3 he can simplify the answer.

Therefore, the fraction chosen by Eduardo will be $\frac{1}{x}$ , where x is between 5 and 3.

So, the fraction is $\frac{1}{4}$ .

Again, when he multiplies his fraction by 4 he gets $(\frac{1}{4} \times 4) = 1$ which is a whole number. (Answer)

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3 years ago

Maria's test scores for this semester were: 84, 80, 93, 74, 67, 99, 87, 72, 95, & 98. What is the mean of her test scores (r

Basile [38]

Answer:

85%

Step-by-step explanation:

Add all the numbers together which gives 849. Divide 849 by 10 because there are ten numbers. This gives 84.9. Round it up to 85%

6 0

2 years ago

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Suppose T is the transformation from ℝ2 to ℝ2 that results from a reflection over the y-axis followed by a reflection over the x

LenKa [72]

<u>Answer:</u>

A = \begin{pmatrix}-1 & 0 \\0 & -1\end{pmatrix}

<u>Step-by-step explanation:</u>

Let, there be a point (x , y) in R2

After reflection on Y axis, it will be ( -x , y) and thereafter if we reflect the image over X -axis , it will be (-x , -y)

So,

we need to find out a matrix

[tex]\begin{pmatrix}a & b \\c & d\end{pmatrix}[tex]

such that,

(x , y) [tex]\begin{pmatrix}a & b \\c & d\end{pmatrix}[tex] = (-x. -y)

So, we have the following set of equations.

ax + cy = -x ------------(1)

bx + dy= -y-----------(2)

We can get the solution (by inspection) as,

[tex]\begin{pmatrix}a & b \\c & d\end{pmatrix}[tex]

= [tex]\begin{pmatrix}-1 & 0 \\0 & -1\end{pmatrix}[tex]

So, the matrix is,

A = \begin{pmatrix}-1 & 0 \\0 & -1\end{pmatrix} (answer)

8 0

3 years ago

Enter the data to create a histogram. Then check all

sveta [45]

Answer:

first 4

Step-by-step explanation:

dont click the last one

6 0

3 years ago

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