2x - y = 5
x + 3y = 7

What is the value of the system determinant?

A.) 5
B.) 6
C.) 7

Answers

Answer 1

9514 1404 393

Answer:

  C)  7

Step-by-step explanation:

The determinant is the difference of the cross products of the coefficients.

 D = (2)(3) -(1)(-1) = 6 +1 = 7

The system determinant is 7.

Answer 2

Answer:

C.) 7

Step-by-step explanation:

#CarryOnLearning

Related Questions

Use the graph of y=f(x) in the figure to estimate:

f(0)≈
f(1)≈
f(b)≈
f(c)≈
f(d)≈

Answers

9514 1404 393

Answer:

f(0) ≈ 22f(1) = 10f(b) ≈ -8f(c) = 0f(d)  24

Step-by-step explanation:

This takes graph-reading one step further. You get to estimate the y-value without benefit of minor grid lines. You must mentally divide the 10-unit distance between grid lines into equal spaces. Then estimate how many of those spaces lie between the point and the nearest grid line.

You can do this more precisely by drawing a diagonal line across the grid from one major grid intersection to one that is (5, 1) or (5, -1) major grid points away. Where that line crosses the intermediate grid lines, the vertical measure will be some multiple of 1/5 of the vertical difference between grid points. For example, a line from (0,20) to (5,30) will cross at (1,22), (2,24), (3,26), and (4,28). You can use these reference points to identify the y-values at f(0) and f(d).

Here's our eyeball estimate:

f(0) ≈ 22f(1) = 10f(b) ≈ -8f(c) = 0f(d)  24

Estimate the difference by rounding each number to the nearest hundredth 0.069-0.044

Answers

Answer:

0.1 and 0 thats the answer

need ko na po this now

please answer this question

thank you po​

Answers

Answer:

B.

Step-by-step explanation:

Someone plz help meeeee!!!!

Answers

The mean age is 11
AND
The median age is 11

SHOW YOUR WORK

2 1/2 times ? = 5/8

Answers

Answer:

1/4

Step-by-step explanation:

Well 2 1/2 is the same thing as 5/2

so we do

5/2 * x(unknown number) = 5/8

2 * 5/2 = 5 * 2/8

5x = 5/4

x = 1/4

By visual inspection, determine the best fitting regression model for the scatter plot

Answers

Answer

Exponential

Step-by-step explanation:

Ignore the answers and please help rn

Answers

The answer is 147. Use the formula volume= length x width x height

i need help please help me

Answers

Answer: D

Step-by-step explanation:

It shows the bar going left, meaning its going higher, and we only marked 2

Answer:

2 < x

Step-by-step explanation:

There is an open circle at 2, which means it is not equal to

The line goes to the right which means it is greater tha

x> 2

or 2 < x

Find the measure of each numbered angle or are.

Answers

Answer:

<2 = 133degrees

<1 = 135degrees

Step-by-step explanation:

From the diagram, the angle <2 and 47 are supplementary, hence;

<2 + 47 = 180

<2 = 180 - 47

<2 = 133degrees

To get <1;

47 = 1/2(<1 - 41)

47 * 2 = (<1 - 41)

94 = <1 - 41

<1 = 94 + 41

<1 = 135degrees

What is the common difference of the arithmetic sequence graphed below?
GO
an
1.
-11
1
2
3
4
5
6
7
8
9
n
-2
-3
4
5
-6
• (1.-3.75)
• (2, -4.5)
(3, -5.25)
• (4, -6)
(5.-6.75)
(6.-7.5)
• (7.-8.25)
• (8, -9)
-7
-8
-9
-10

Answers

9514 1404 393

Answer:

  -0.75

Step-by-step explanation:

If the difference is common, it is the difference of any pair of adjacent y-values (for sequential x-values).

  -4.5 -(-3.75) = -0.75 . . . . . difference between the first two y-values

The common difference is -0.75.

Solve for x

Please I need help

Answers

Answer:

x=25

Let's solve your equation step-by-step.

3x+18=93

Step 1: Subtract 18 from both sides.

3x+18−18=93−18

3x=75

Step 2: Divide both sides by 3.

3x/ 3 = 75/ 3

x=25

Answer:

x=25

A new factory in a small town has an annual payroll of ​$ million. It is expected that of this money will be spent in the town by factory personnel. The people in this town who receive this money are expected to spend of what they receive in the​ town, and so on. What is the total of all this​ spending, called the total economic impact of the​ factory, on the town each​ year? Use the formula for the sum of an infinite geometric series.

Answers

Answer:

I would say a millions dollars!

Step-by-step explanation:

HELPPPP!!! On average, a gym claims that 65% of its members renew their memberships each year. If the gym has 440 members, predict how many will renew their members.

Answers

Answer:

260 people will renew their memberships

Step-by-step explanation:

what is 0.598 to the nearest whole number.

Answers

The answer is 1.

Answer: 1.

Answer:

1 I'm pretty sure

Step-by-step explanation:

59 is bigger than 50 so Im guessing it would go up to 1

I hope this helps :3

Whats the area of this thing

Answers

Answer:

341 in sq

Step-by-step explanation:

When you are finding the area of trapezoids you have to do b1+b2/2 times height because there are two bases you have to include them both so adding 40 and 22 gives 62 and you have to divide that by 2 because the numbers will be too big and way off so 62/2 = 31 and you multiply that by the height to get 341 in sq. Hope it helps :P

20 points and brainly ;) You earned $1600 in interest in your savings account over 10 years at a rate of 8%. How much money did you originally deposit into your savings account?

Answers

A = p(1+r)^t

1600 = p(1+0.08)¹⁰

P = 1600/2.1589

P= 741.12

741.12 dollar money did you originally deposit into your savings account!

What is the value of the expression below? 6 - 11

Answers

Answer:

[tex]{\boxed{\boxed{\tt { ᶛɲƧཡэʀ :-}}}} \ [/tex]

[tex]6 - 11 \\ = - 5[/tex]

Answer:

-5 is your answer

have a nice day

The diagonal of a rectangle is 30 inches and the length of the rectangle is 24 inches.
What is the AREA of the rectangle?

Answers

Answer:

area=432

Step-by-step explanation:

use the Pythagoras theory now that you know the width and you'll get the length and the width then you multiply both of them hope it helps you.

I will give you Brainiest if you are right.

Answers

Just add the polynomials or combine like terms and you gets 3x+6

Answer:

C. 3x + 6

Step-by-step explanation:

x + x + x + 1 + 1 + 1 + 1 + 1 + 1 + (-1) + (-1) =

= 3x + 6

Answer: C. 3x + 6


If you roll a standard six sided dice, what is the probability you will roll a four?
Answer using a simplified fraction.

Answers

Answer:

1/6

Step-by-step explanation:

There are 6 sides on a dice. Every time you roll you you will have one of those sides. So it is a 1 in 6 chance of you getting 4, meaning that the answer to this problem is 1/6

80 POINTS
Which correctly describes a cross section of the right rectangular prism if the base is a rectangle measuring 15 inches by 8 inches? Select three options..
A cross section parallel to the base is a rectangle measuring 15 inches by 8 inches.
A cross section parallel to the base is a rectangle measuring 15 inches by 6 inches.
A cross section perpendicular to the base through the midpoints of the 8-inch sides is a rectangle measuring 6 inches by 15 inches.
A cross section perpendicular to the base through the midpoints of the 8-inch sides is a rectangle measuring 4 inches by 15 inches.
A cross section not parallel to the base that passes through opposite 6-inch edges is a rectangle measuring 6 inches by greater than 15 inches.

Answers

ANSWER:

A cross section parallel to the base is a rectangle measuring 15 inches by 6 inches.

A cross section perpendicular to the base through the midpoints of the 8-inch sides is a rectangle measuring 6 inches by 15 inches.

A cross section perpendicular to the base through the midpoints of the 8-inch sides is a rectangle measuring 4 inches by 15 inches.

A cross section not parallel to the base that passes through opposite 6-inch edges is a rectangle measuring 6 inches by greater than 15 inches.

Step-by-step explanation:

HOPE IT HELPS

#CARRYONLEARNING

Answer:

1, 3, 5. *please report my answer if it is incorrect.*

Step-by-step explanation:

A cross-section parallel to the base is a rectangle measuring 15 inches by 8 inches.

A cross-section perpendicular to the base through the midpoints of the 8-inch sides is a rectangle measuring 6 inches by 15 inches.

A cross-section not parallel to the base that passes through opposite 6-inch edges is a rectangle measuring 6 inches by greater than 15 inches.

yoo please help me out

Answers

Answer:

70

Step-by-step explanation:

The answer is 187
U do 17 x 22 divided by 2 equals 187

Find the answer for x​

Answers

Answer:

I think the answer is 75.

Step-by-step explanation:

because 35 + 70 is equal to 105. So now we will just subtract 105 by 180. which will give us 75.

Answer this simple quick question!! Pls :) m

Answers

Answer:

Answer is B!

Step-by-step explanation:

58 * 20 = 1160

0+160= 160

160+1000=1160

Answer:

B

Step-by-step explanation:

58 * 20 is 1160 and 0 + 160 + 1000 = 1160

Who is Pemdas Orelse?

Answers

It’s something with math!

Answer:

Pemdas is a lesson in Mathematics.

Step-by-step explanation:

What is the meaning of Pemdas?

The operations is rule that tells the correct sequence of steps by step for explanation's math expression.

Meaning of each letter in Pemdas?

Pemdas means each letter are Parenthesis, Exponent, Multiplication, Division, Subtraction, and Addition.

(ʋ◕ᴥ◕ʋ)

Find the quotient of 3 2/5 ÷ 4 1/3
Give your answer as a fraction in its simplest form.​

Answers

Answer:

51/65

Step-by-step explanation:

3 2/5 ÷ 4 1/3 = 51/65

51/65 is in its simplest form.

Hope this helps! :)

The value of the quotient 3 2/5 ÷ 4 1/3 is 51/65

How to evaluate the quotient?

The quotient is given as:

3 2/5 ÷ 4 1/3

Convert the fractions to improper fractions

17/5 ÷ 13/3

Express as products

17/5 * 3/13

Multiply

51/65

Hence, the value of the quotient 3 2/5 ÷ 4 1/3 is 51/65

Read more about quotient at:

https://brainly.com/question/629998

#SPJ6

(Help please !)
Of the total babies born in America, 51.2% are boys. If 3000 babies are born in a certain hospital this year, what is the expected number of boys?

Answers

Answer:

1536 boys.

Step-by-step explanation:

Quite simple! 51.2% is 0.512, which we can use to calculate the number.

[tex]3000 * 0.512 = 1536[/tex] boys.

Alternative notation: 3000 * 51.2% = 1536

2.25 gal = _______?qt​

Answers

Ummm I think the answer is 9

8 X 10-3 is how many times as great as 4X 10-6

Answers

Answer:

[tex]2X10^{3}[/tex]

Step-by-step explanation:

A random sample of 10 employees of a company was selected to estimate the mean one-way commute time for all employees at the company. The mean and standard deviation of the sample were 38 minutes and 6 minutes, respectively. Assuming all conditions for inference are met.

Required:
What is the margin of error, in minutes, for a 95 percent confidence interval for the population mean one-way commute time?

Answers

Answer:

The margin of error is of 4.22 minutes.

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 10 - 1 = 9

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 9 degrees of freedom(y-axis) and a confidence level of [tex]1 - \frac{1 - 0.95}{2} = 0.975[/tex]. So we have T = 2.2622

The margin of error is:

[tex]M = T\frac{s}{\sqrt{n}}[/tex]

In which s is the standard deviation of the sample and n is the size of the sample.

We have that [tex]s = 6, n = 10[/tex]. So

[tex]M = T\frac{s}{\sqrt{n}} = 2.2622\frac{6}{\sqrt{10}} = 4.22[/tex]

The margin of error is of 4.22 minutes.

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