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3 years ago

What system of inequalities is shown in the graph?

Mathematics

1 answer:

nikitadnepr [17]3 years ago

4 0

Answer:

Step-by-step explanation:

x ≤ −1 and y ≤ −0.4x + 2

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There are 80 people waiting to tour the science museum. The tour guide takes 4 groups of 16 people each. The remaining people wi

Anna11 [10]

Answer:

16 people

Step-by-step explanation:

Given that :

Number of people to tour = 80

Number per group = 16

Number of groups = 4

Total number of people who make up the entire groups :

Number per group * number of groups

16 * 4 = 64

The number of people in the last tour group :

80 - 64

= 16 people

7 0

3 years ago

What is 6 3/4, 6 5/8, 3 1/4, 3 3/8 from least to greatest?

weeeeeb [17]

Answer:

3 1/4, 3 3/8, 6 5/8, 6 3/4

Step-by-step explanation:

4 0

3 years ago

Pythagorean theorem digital escape, can you find the length and area and type the correct code?

matrenka [14]

Answer:

A=13825

Step-by-step explanation:

5 0

3 years ago

<img src="https://tex.z-dn.net/?f=%5Cbf%203x%2B9%3D-18" id="TexFormula1" title="\bf 3x+9=-18" alt="\bf 3x+9=-18" align="absmiddl

Studentka2010 [4]

$▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪$

value of x is ~

$\boxed{ - 9}$

Here's the solution teeny ~

$3x + 9 = - 18$

$3x = - 18 - 9$
$3x = - 27$

$x = - 27 \div 3$

$x = - 9$

Hope it helps ~

6 0

3 years ago

Read 2 more answers

Solve the following system of linear equations: 3x1+6x2+6x3 = -9 -2x1–3x2-3x3 = 3 If the system has infinitely many solutions, y

choli [55]

Answer:

The set of solutions is $\{\left[\begin{array}{c}x\\y\\z\end{array}\right]=\left[\begin{array}{c}12\\-7-r\\r\end{array}\right]: \text{r is a real number} \}$

Step-by-step explanation:

The augmented matrix of the system is $\left[\begin{array}{ccccc}3&6&6&-9\\-2&-3&-3&3\end{array}\right]$ .

We will use rows operations for find the echelon form of the matrix.

In row 2 we subtract $\frac{2}{3}$ from row 1. (R2- 2/3R1) and we obtain the matrix $\left[\begin{array}{cccc}3&6&6&-9\\0&1&1&-7\end{array}\right]$
We multiply the row 1 by $\frac{1}{3}$ .

Now we solve for the unknown variables:

$x_2+x_3=-7$ , $x_2=-7-x_3$
$x_1+2x_2+2x_3=-2$ , $x_1+2(-7-x_3)+2x_3=-2$ then $x_1=12$

The system has a free variable, the the system has infinite solutions and the set of solutions is $\{\left[\begin{array}{c}x\\y\\z\end{array}\right]=\left[\begin{array}{c}12\\-7-r\\r\end{array}\right]: \text{r is a real number} \}$

6 0

3 years ago