What is the determinant of? –18 –8 10 18

Answers

Answer 1

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[tex] \binom{ | - 18 \: \: \: \: \: - 8| }{ |10 \: \: \: \: \: \: \: \: \: \: \: \: \: \: 18| } = \\ [/tex]

[tex] - 18 \times18 - ( - 8 \times 10) = [/tex]

[tex] - 324 + 80 = - 244[/tex]

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Answer 2

Answer:

D

Step-by-step explanation:

Edge


Related Questions


Give the slope between the points
(-5,-3) (-1,-8)

Answers

slope is difference in y over difference in x:

m = ( -8 - -3) / (-1 - -5) = (-5)/(4) = -5/4

The slope is -5/4.

PLEASE HELP I NEED TO TURN THIS IN BEFORE 2.

what fractions of the second ten counting numbers (11,12,13...,.18,19,20) Are composite and prime

will be the brainest

Answers

Answer:

Fraction of composite numbers = 6/10

Fraction of prime numbers = 4/10

Step-by-step explanation:

A composite number can be defined as a positive integer that will be formed when we multiply two smaller positive integers. It can also be said to be a positive integer that has at least one divisor of which 1 and itself are not included.

Thus, it means that the set of numbers given to us which is;

(11, 12, 13, 14, 15, 16, 17, 18, 19, 20), the composite numbers are;

12, 14, 15, 16, 18, 20

This is because each of them have at least one divisor that is neither itself or 1.

Thus, we have 6 out of the 10 numbers as composite.

Fraction of composite numbers = 6/10

Now, a prime number is a number that are only divisible by itself and 1.

Thus,from the given set, the prime numbers are; 11, 13, 17 & 19

We have 4 out of 10 numbers as prime numbers.

Thus, fraction of prime numbers = 4/10

Please help simpliflying this pleasee!!!!!! i will give brainliest to the best answer!!!

Answers

Answer:

c

Step-by-step explanation:

Answer:

2 3/8

Step-by-step explanation:

-7 1/8 = -(7*8 + 1) / 8 = -57/8

-9 1/2 = - (9*2 + 1) / 2 = - 19/2

simplifying

= -57/8  - (-19/2)

= -57/8 + 19/2

= lcm of 2 ,8 is 8

=  (-57 + 4*19) / 8

= (-57 + 76) / 8

= 19 / 8     ------> (19 = 8*2 + 3)

= 2 3/8

A bakery made 9 cakes using 3 bags of flour. The bakery uses the same relationship between cakes made and the amount of flour used to make all of their cakes. Which table of values shows the relationship between the number of cakes the bakery makes to the number of bags of flours the bakery uses?

Answers

Answer:

c = 3b

Step-by-step explanation:

9 cakes proportional to 3 bags of flower

cake = k(bag)

c = kb

9 = k(3)

k = 3

c = 3b

you didn't send any table of values but this is the relationship between the cakes and flour, you can use it.

please mark brainliest if you like the answer

What is the answer to this question?

Answers

Answer:3.50

Step-by-step explanation:

because

Ed spoke to his cousin in Australia, who told him it was 28°C that day Ed wasn't sure if that was hot or cold, so he
converted the temperature to degrees Fahrenheit. What is the temperature in degrees Fahrenheit?
Use the formula, F-C+32, where F is the number of degrees in Fahrenheit and C is the number of degrees in
Celsius. Round your answer to the nearest whole number
48°F
50°F
82°F
1080F
Hey

Answers

Answer:

82

Step-by-step explanation:

hope this helps you man

Answer:

82

Step-by-step explanation:

what's the sum of 6+y

Answers

Answer:

6y?

It's probably wrong but off the top of my head, 6y

which represents an even function?

y=cos(x)

Answers

I think the one that represents a even function is cos(x)

Answer:

The cosine is an even function which means that if (x,y) is on the graph of the function so too is the point (-x,y). Since y corresponds to cos(x) then this means that cos(-x) = cos(x).

Step-by-step explanation:

Hope this helps

An insect population is growing at a rate of 2t/8 insects per day. Find the size of the insect population after 24 days assuming that there are 100 insects at time t=0.

Answers

Answer:

244

Step-by-step explanation:

Number of insects at time [tex]t[/tex] = 0 are 100.

Rate of growth of insects = [tex]\frac{2t}8[/tex] insects per day

Time, Number of days = 24 days

To find:

Number of insects or size of insect population after 24 days.

Solution:

Given that rate of growth of insects = [tex]\frac{2t}8[/tex] insects per day

We are given that, [tex]t[/tex] = 24 days

Rate of growth =

[tex]\dfrac{2\times 24}{8} = 2\times 3 = 6[/tex]

Growth in Insect population after 24 days = [tex]24\times 6 = 144[/tex]

Initial population = 100

Therefore, the answer is:

The size of insect population after 24 days = 100 + 144 = 244

Explain why the decimal point moves left when dividing a number by 100.

Answers

Answer:

because as the number gets smaller the decimal moves more to the left

Step-by-step explanation:

If the number was to get bigger the decimal would go to the right

Solve for e
7 = 15 - 2e
e equals....

Answers

Answer:

e=4

Step-by-step explanation:

Lo ran 6 ¼ miles Thelma ran 1 2/3 miles.
How many times further did Lo run than Thelma?

Answers

Answer: 7 1/2 miles mire

Step-by-step explanation:

Is 16.4 greater than 16

Answers

Answer:

yea

Step-by-step explanation:

Yes.

16 could also be written as 16.0, or 16.00 or even 16.00000.

16.4 could also be written as 16.40, or 16.400.

And of course, you know 4 is greater than 0.

This is why 16.4 is greater.

When you add a decimal to a number, it always makes it larger. its like saying 16 and 4 tenths.

8/6+(-9/5) . . . . . . . .. .. . .. . . . .. . .. .

Answers

Answer:

To add fractions, find the LCD and then combine.

Exact Form:

-7/15

Decimal Form:

−0.46

Hey guys.so Im a teacher and I want to know how I do this thing

Answers

Answer: you read the ? and u answer

Step-by-step explanation:

Which equations represent the line that is parallel to 3x – 4y = 7 and passes through the point (-4,-2)? Select two
options.
1.y=-3/4x + 1
2.3x – 4y = -4
3.4x – 3y = -3
4.y-2=-3/4(x-4)
5.y+2 =3/4 (x+4)

Hellllp ASAP no rocky :)

Answers

Answer:

y = 3/4x + 1 and 3x - 4y= -4

Step-by-step explanation:

I dont feel like explaining but just trust me bro

The Equation of parallel line is y= 3/7 x - 2/7.

What is Slope?

A line's slope is determined by how its y coordinate changes in relation to how its x coordinate changes. y and x are the net changes in the y and x coordinates, respectively. Therefore, it is possible to write the

change in y coordinate with respect to the change in x coordinate as,

m = Δy/Δx where, m is the slope

Given:

We have equation 3x – 4y = 7 and passes through (-4, -2).

Writing the given equation in slope intercept form as

3x = 7 +4y

4y = 3x- 7

y= 3/7 x - 4/7

so, the slope of parallel line is 3/7.

and, passes through (-4, -2).

y= 3/7 x +b

-2 = 3/7(-4) +b

-2 = -12 /7 + b

b = -2/7

So, the Equation of line is y= 3/7 x - 2/7.

Learn more about Slope here:

https://brainly.com/question/3605446

#SPJ6

Solve and graph
3x + 9 < 30

Answers

Answer: X<7

Step-by-step explanation:

3x+9<30

-9       -9

3x<21

/3    /3

X<7

Solve and explain the steps you would use in solving 2 step problems
PLEASE HELP ASAP

Answers

whatever you do to one side you must do to the other. also always use opposite operations for example: multiplication and division or subtraction and addition

Answer:

got deleted eh?

Step-by-step explanation:

5
4
3
2
please help will give brainlyest
these are the answer choices
thank you

Answers

Answer:

3

Step-by-step explanation:

Answer:

x=3

Step-by-step explanation:

PLEASE MARK BRAINLIEST

please help it’s due asap

Answers

Answer:

please mark me as brainlist

What is the solution to the inequality f + 4 < 2?

Answers

Answer: f=-2

Step-by-step explanation:

math

Answer:

f < -2

Step-by-step explanation:

A triangle has sides that measure 5 units, 7 units, and 8 units. Is this a right triangle

will mark brainliest asap.

answer choices

Yes, it is a right triangle because 72 + 52 = 82.

No, it is not a right triangle because 72 + 52

82.

Yes, it is a right triangle because 72 + 52

82.

No, it is not a right triangle because 72 + 52 = 82.

Answers

Answer:

Step-by-step explanation:

O=0O

KO[K]

Choose the graph that matches the inequality ­ y < –2x + 4.

Answers

Answer:

C

Step-by-step explanation:

You know that if its < or >, the line is - - - -, not a fully dark line.

So it would be either A or C

Plot in some numbers for x

Less than would be to the left.

So it wouldn't be A, leaving us with C

Answer:

I belive this would be C

Step-by-step explanation:

¿ cuáles son los adjetivos? y ¿ cuáles son los adjetivos ? por favor es para hoy

Answers

Answer:

1) maldava y despota

2) pequenos

Step-by-step explanation:

Order the decimals and fractions from least to greatest . Write your answer in decimal form.5/10, 0.51, 0.15, 5/100

Answers

Answer:

Least to greatest:

0.05, 0.15, 0.5, 0.51

Step-by-step explanation:

5 / 10 = 1 / 2 = 0.5

5 / 100 = 1 / 20 = 0.05

Answer:

pls help me i dont understad what that is bruh fr fr

evaluate log2/3 (4/9)​

Answers

Answer:

2

Step-by-step explanation:

Please answer the 3 questions on the bottom to help me out (8TH GRADE MATH?!)

Answers

Answer:

a

c

b

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

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.

A circular fountain has 132 feet of railing around it. What is the area of the fountain to the nearest square foot? Use 3.14 for π. *

Answers

Answer:

139

Step-by-step explanation:

First we need to find diameter 132/3.14=42 rounded

Then we halve it to find radius 42/2=21

Formula for area is radius x radius x 3.14

21 x 21 = 441 x 3.14 = 138.74 round up is 139

Answer:

18.8 feet, 59.1 feet to the nearest tenth

Step-by-step explanation:

The diameter is the line drawn that divides the circle into two while the circumference is the perimeter of the circle. Both are a measure of the radius of the circle.

The diameter D = 2r where r is the radius of the circle

The circumference = 2Πr = ΠD where Π = 22/7

Given that the circular fountain has a radius of 9.4 feet

Its diameter =  2 × 9.4 feet = 18.8 feet

The circumference = 22/7 × 18.8 feet

=59.09 feet

≈ 59.1 feet to the nearest tenth

Write down in terms of n, an expression for the nth term
of the following sequences
a) 25 20 15 10 5​

Answers

Answer:

Solution,

First term (a) = 25

Common difference (d) = Second term - first term = 20 - 25 = -5

Now,

nth term = a + (n - 1)d = 25 + (n - 1) (-5) = 25 - 5n +5 = 30 - 5n

The nth term of the series is 30 - 5n

Answer:

The nth term will be:

[tex]a_n=-5n+30[/tex]

Step-by-step explanation:

Given the sequence

25, 20, 15, 10, 5​

An Arithmetic sequence has a constant difference 'd' and is defined by

[tex]a_n=a_1+\left(n-1\right)d[/tex]

Computing the common difference of all the adjacent terms

[tex]25,\:20,\:15,\:10,\:5[/tex]

[tex]20-25=-5,\:\quad \:15-20=-5,\:\quad \:10-15=-5,\:\quad \:5-10=-5[/tex]

As the difference between all the adjacent terms is the same and equal to

[tex]d=-5[/tex]

Also, the first term is:

[tex]a_1=25[/tex]

Hence, the nth term will be:

[tex]a_n=a_1+\left(n-1\right)d[/tex]

[tex]a_n=-5\left(n-1\right)+25[/tex]        ∵ [tex]a_1=25[/tex], [tex]d=-5[/tex]

[tex]a_n=-5n+30[/tex]

Therefore, the nth term will be:

[tex]a_n=-5n+30[/tex]

Slope pls help I really need help I will do anything this is due tonight

Answers

Answer:

I believe that the answer is 1/2 but I cannot see the numbers on the axis's.

Step-by-step explanation:

Go up 1 and over 2.

Rise over run

Sorry if it isn't right but I can't see the numbers on the axis's.

It’s 1/2 the reason for this is find two points on the line that is not a decimal. Then do rise over run. Rise is y and run is x when u do that it should be 1/2
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