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borishaifa [10]
3 years ago
13

Please help ASAP !!!

Mathematics
1 answer:
san4es73 [151]3 years ago
4 0

Answer:

The correct answer is, Option d.

Step-by-step explanation:

It is given a system of equation.

- 2x - 2y + 5z = 1

- 5x - 5y + 7z = 4

9x - 2y + 2z = -1

<u>To find the augmented matrix</u>

To find the augmented matrix we have to write the coefficients of the given system of equation.

- 2   - 2   5  |  1

- 5   - 5   7  |  4

 9   - 2   2  |  1

Therefore the correct answer is Option d.

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Determine whether line AB and line CD are parallel, perpendicular, or neither. A( 4, 2), B(-3, 1), C(6, 0), D(-10, 8)
Lapatulllka [165]

Answer:

<h2>neither</h2>

Step-by-step explanation:

If AB an CD are parallel, then their slopes are the same.

If AB and CD are perpendicular, then the product of their slopes is equal -1.

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

Calculate the both slope:

A(4,\ 2),\ B(-3,\ 1)\\\\m_{AB}=\dfrac{1-2}{-3-4}=\dfrac{-1}{-7}=\dfrac{1}{7}\\\\C(6,\ 0),\ D(-10,\ 8)\\\\m_{CD}=\dfrac{8-0}{-10-6}=\dfrac{8}{-16}=-\dfrac{1}{2}\\\\=============================

m_{AB}\neq m_{CD}

The line AB and line CD are not parallel

m_{AB}\cdot m_{CD}=\left(\dfrac{1}{7}\right)\left(-\dfrac{1}{2}\right)=-\dfrac{1}{14}\neq-1

The line AB and line CD are not perpendicular.

6 0
3 years ago
When Gabby went food shopping, she spent $14.90 on 5 bags of marshmallows to make Rice Krispie treats. She has to go to the stor
dusya [7]

the answer is $20.70


3 0
3 years ago
You roll a 6-sided die.<br> What is P(prime)?<br><br> Write your answer as a percentage.
posledela

\huge \underline\text {Hello There!!}

<h3><u>Given</u></h3>

Rolled A six-sided dice.

<h3><u>To </u><u>Find </u></h3>

P(Prime) as percentage

<h3><u>Solution</u></h3>

Total Possible Outcomes= 1, 2, 3, 4, 5, 6.

So, No. of possible Outcomes= 6

Prime number of the dice= 2, 3, 5

So, No. of favorable outcomes of Prime number= 3

<h3><u>We Know,</u></h3>

\text{Probability of an event= }

\frac{ \text{favorable no. of outcome}}{ \text{total no. of outcome}}  \times 100

\text{Percentage of Probability getting P(Prime) number on face of dice} =

\frac{3}{6}  \times 100 \\   \\ =  \cancel \frac{3}{6}  \times 100 \\  \\  =  \frac{1}{ \cancel2}  \times  \cancel{100} \\  \\  = 50\%

\therefore \% \text{ Probability of getting prime number is  \red{50}   \red\%}

<h3>Hope This Helps</h3>
8 0
2 years ago
Decimals greater than one. write in word form and expended form for each<br> for 2,51
Nesterboy [21]

Answer:

In word form - "Two and fifty-one hundredths." In expanded form - 2 + 0.5 + 0.01.

Step-by-step explanation:

To write a decimal in word form, we write out the words we would say as we read the decimal. When we read a decimal, we read the whole number before the decimal. This is "two." The decimal is read as "and." After this, we read the digits behind the decimal as a group; 51 would be read as "fifty-one", and since 1 is in the hundredths place, it is "fifty-one hundredths."


To write a number in expanded form, we separate the digits by place value. 2 is in the ones place, so it equals 2. 5 is in the tenths place, so it equals 0.5. 1 is in the hundredths place, so it equals 0.01. Together this gives us:


2 + 0.5

7 0
3 years ago
In 4th grade :) help plss
Soloha48 [4]

Answer:

1. 570

2. 5,700

3. 57,000

Step-by-step explanation:

Hope it helped

4 0
3 years ago
Read 2 more answers
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