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3 years ago

0,2(7) = ? please help me

Mathematics

2 answers:

WARRIOR [948]3 years ago

8 0

Assuming you meant to put 0.2 instead of 0,2, 0.2(7) = 1.4

OLEGan [10]3 years ago

4 0

Are you sure that’s the problem?

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Solve for x: −3|2x + 6| = −12

Ivanshal [37]

$-3|2x + 6| = -12 \\
|2x+6|=4\\
2|x+3|=4\\
|x+3|=2\\
x+3 =-2 \vee x+3=2\\
x=-5 \vee x=-1$

4 0

4 years ago

Read 2 more answers

What is the range of the function y = x 2?

Leno4ka [110]

Answer:

$\mathrm{Range\:of\:}x^2:\quad \begin{bmatrix}\mathrm{Solution:}\:&\:f\left(x\right)\ge \:0\:\\ \:\mathrm{Interval\:Notation:}&\:[0,\:\infty \:)\end{bmatrix}$

The graph is also attached below.

Step-by-step explanation:

Given the function

$y=x^2$

We know that the range of a function is the set of values of the dependent variable for which a function is defined.

$\mathrm{For\:a\:parabola}\:ax^2+bx+c\:\mathrm{with\:Vertex}\:\left(x_v,\:y_v\right)$

$\mathrm{If}\:a$

$\mathrm{If}\:a>0\:\mathrm{the\:range\:is}\:f\left(x\right)\ge \:y_v$

$a=1,\:\mathrm{Vertex}\:\left(x_v,\:y_v\right)=\left(0,\:0\right)$

$f\left(x\right)\ge \:0$

Thus,

$\mathrm{Range\:of\:}x^2:\quad \begin{bmatrix}\mathrm{Solution:}\:&\:f\left(x\right)\ge \:0\:\\ \:\mathrm{Interval\:Notation:}&\:[0,\:\infty \:)\end{bmatrix}$

The graph is also attached below.

5 0

3 years ago

A. How much carpet does Erin need?

cricket20 [7]

A. she needs 81sq ft

b. 202.5$

6 0

3 years ago

Pls help me asap

yarga [219]

Answer:

Standard deviation = 5.1

Mean = 13

Median = 14

Step-by-step explanation:

The sample standard deviation measures the spread of a data distribution of the sample. It is usually used to estimate the population standard deviation

The mean of a set of numbers is the sum divided by the number of terms.

Arrange the data in an ascending order and the median is the middle value. If the number of values is an even number, the median will be the average of the two middle numbers.

7 0

2 years ago

What ordered pair is a solution of both y=3x-5 and y=x-7

aalyn [17]

X= -1 y= -8 is the answer

4 0

3 years ago