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3 years ago

identify the vertex of the graph tell whether minimum or is it maximum. y equals -1 and xbox equals -4

Mathematics

1 answer:

Kobotan [32]3 years ago

3 0

Answer:

it minimum

Step-by-step explanation:

you didn't really give an equation

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Find the values of the variables

Umnica [9.8K]

Looks like you're given an equality between two matrices,

$\begin{bmatrix}-12&-w^2\\2f&3\end{bmatrix}=\begin{bmatrix}2k&-81\\-14&3\end{bmatrix}$

Two matrices are equal if the entries in the same positions (row and column) are equal. This means

$\begin{cases}-12=2k\\-w^2=-81\\2f=-14\\3=3\end{cases}$

We can ignore the last one, since it's clearly true. For the remaining, we get

$-12=2k\implies k=-\dfrac{12}2=-6$

$-w^2=-81\implies w^2=81\implies w=\pm9$

$2f=-14\implies f=-\dfrac{14}2=-7$

7 0

4 years ago

Find f(6) if f(x) = x^2 ÷ 3 + x

galina1969 [7]

Answer:

Step-by-step explanation:

6^2 / 3 + 6

36 / 3 + 6

12 + 6 = 18

3 0

3 years ago

Read 2 more answers

There are 4 lunch choices in a school cafeteria: Salad, Pizza, Spaghetti, and Sub Sandwiches. The percentage of students that ch

andrew-mc [135]

Answer:

The total number of students that ate lunch are 300 .

Step-by-step explanation:

Formula

$Percentage = \frac{Part\ value\times 100}{Total\ value}$

As given

There are 4 lunch choices in a school cafeteria: Salad, Pizza, Spaghetti, and Sub Sandwiches.

The percentage of students that chose salad is 15%.

If 45 students chose salad.

Here

Percentage = 15%

Part value = 45

Put in the formula

$15 = \frac{45\times 100}{Total\ value}$

$Total\ value= \frac{4500}{15}$

$Total\ value= 300$

Therefore the total number of students that ate lunch are 300 .

5 0

4 years ago

Read 2 more answers

Laura completed the following steps to find a product.

Goryan [66]

The solution to the product of 8 and three-seventh is 2 2/7. According to Laura, she made mistake in step 2 by adding 8 and 3 instead of multiplying

Multiplication of fractions and integers

Fractions are written as a ratio of two integers. For instance a/b is a fraction where a and b are integers.

Given the following equation

Multiply 3/7 and 8

This is expressed mathematically as;

3/7 * 8

Step 1: Swap to have;

8 * 3/7

Step 2: Group the numerator

(8*2)/7

Step 3; Simplify

16/7

Step 4; Convert to mixed fraction

16/7= 2 2/7

The solution to the product of 8 and three-seventh is 2 2/7. According to Laura, she made mistake in step 2 by adding 8 and 3 instead of multiplying

Learn more on multiplication here: brainly.com/question/4721701

#SPJ1

7 0

2 years ago

4+2(x-2)=2(x-1)+2 which one A. Infinitesolutions B.x=0 C.x=3 D.x=-2 E.x=-3

fredd [130]

Answer:

Step-by-step explanation:

8 0

4 years ago

Read 2 more answers

identify the vertex of the graph tell whether minimum or is it maximum. y equals -1 and xbox equals -4 ​

identify the vertex of the graph tell whether minimum or is it maximum. y equals -1 and xbox equals -4