All categories

3 years ago

15.5 × [(2 × 2.4) + 3.2] – 16

Mathematics

1 answer:

ch4aika [34]3 years ago

5 0

Answer:

108

Step-by-step explanation:

You might be interested in

What is the measure of A ?

STALIN [3.7K]

Answer:

Step-by-step explanation:

136

8 0

3 years ago

Read 2 more answers

This table represents a quadratic function with a vertex at (1, 0). What is the

inn [45]

Answer:

Step-by-step explanation:

7 0

2 years ago

Etry & measure > Circle measure > 534 - Circumference of a circle (1) > Quiz

daser333 [38]

Answer:

28.26 cm

Step-by-step explanation:

circumference of a circle = πd

=3.14 * 9 cm

=28.26 cm

3 0

3 years ago

A psychologist collects data on personality, and finds that scores on neuroticism explain why

Doss [256]

The independent variable is D. neuroticism scores.

<h3>What is an independent variable?</h3>

It should be noted that an independent variable is the the factor or condition which one manipulates in an experiment.

Here, the psychologist collects data on personality, and finds that scores on neuroticism explain why

people choose a safer or more risky interaction style.

In this case, the independent variable is neuroticism scores

Learn more about variables on:

brainly.com/question/25223322

#SPJ1

5 0

2 years ago

Solve the system of equations by finding the reduced row echelon form of the augmented matrix. Write the solutions for x and y i

Gwar [14]

Answer:

The solutions for the given system of equations are:

$\left \{ {{x=-5} \atop {y=12-4z}} \right.$

Step-by-step explanation:

Given the equation system:

$\left \{ {{3x+y+4z=-3} \atop {-x+y+4z=17}} \right.$

We obtain the following matrix:

$\left[\begin{array}{cccc}3&1&4&-3\\-1&1&4&17\end{array}\right]$

<u>Step 1:</u> Multiply the fisrt row by 1/3.

$\left[\begin{array}{cccc}1&\frac{1}{3} &\frac{4}{3}&-1\\-1&1&4&17\end{array}\right]$

<u>Step 2:</u> Sum the first row and the second row.

$\left[\begin{array}{cccc}1&\frac{1}{3} &\frac{4}{3}&-1\\0&\frac{4}{3} &\frac{16}{3}&16\end{array}\right]$

<u>Step 3:</u> Multiply the second row by 3/4.

$\left[\begin{array}{cccc}1&\frac{1}{3} &\frac{4}{3}&-1\\0&1 &4&12\end{array}\right]$

<u>Step 4:</u> Multiply the second row by -1/3 and sum the the first row.

$\left[\begin{array}{cccc}1&0 &0&-5\\0&1 &4&12\end{array}\right]$

The result of the reduced matrix is:

$\left \{ {{x=-5} \atop {y+4z=12}} \right.$

This is equal to:

$\left \{ {{x=-5} \atop {y=12-4z}} \right.$

These are the solutions for the system of equations in terms of z, where z can be any number.

6 0

3 years ago