What is the determinant of the coefficient matrix of the system ?

–1
0
3
18

Answer:

he won 25 games

Step-by-step explanation:

Answer: -3/4

Step-by-step explanation:

Answer:

1:4

Step-by-step explanation:

because the ratio go first

Answer:

x=15

Step-by-step explanation:

Try this option:

1) if V(0;0) and x= -4, then common view of the required equiation is:

(y-k)²=4p(x-h), where focus is in (h-p;k), the vertex is in (h;k), the directrix is x=h+p, p<0 and y=k is simmetry axis;

2) if the V(0;0), then h=k=0 and the required equiation is:

y²=4px;

3) if the directrix equation is x=h+p, where h=0, then p= -4 (according to the condition the directrix equation is x= -4), then the required equation is:

y²= -16x

answer: y²= -16x

Answer:

100

Step-by-step explanation:

blue = 1

red = 2

(blue) 100

(red) 200

Answer:

A) y or total cost is the dependent variable and x which is the number of movie tickets is the independent variable. Y is called dependent because its value depends on the value of x.

B) So 8 is the number of tickets which is X. So x=8. The total cost y will be: 8x9= 72

Answer:

It would be 100 degrees.

Step-by-step explanation:

Sorry no one answered sooner! Hope i helped!

Answer:

675 mm²

Step-by-step explanation:

base = 15 x 15  = 225 mm²

4 sides = 4(15)(15)(0.5) = 450 mm²

450 + 225 = 675 mm²

Answer: D) 150 degrees

Step-by-step explanation:

Opposite angles in a parallelogram are equal so, if angle D is 30 degrees, angle F is also 30 degrees. This adds up to 60 degrees.

A parallelogram is a quadrilateral so the total of its angles is 360 degrees.

Subtract 60 degrees from 360 = 300

Angles E and G will be 300 divided by 2 so E is 150 degrees.

Answer:

AC = 16 in.

Step-by-step explanation:

AD = CD = 10 in.

BD = 6 in.

AC = 2(AB) = ?

Apply pythagorean theorem to find AB

AB² = AD² - BD²

Substitute

AB² = 10² - 6²

AB² = 64

AB = √64

AB = 8

Therefore:

AC = 2(AB) = 2(8)

AC = 16 in.

Answer: 12 years old

Step-by-step explanation:

Take 51 and 39 and subtract them.

51-39=12

Answer: just subtract both of the numbers and you will find it

Step-by-step explanation: hope I helped ;)

Answer:

C. (22.96, 26.64)

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

4/6=2/3

18(2/3)=12

Answer

12

Step-by-step explanation: 18 can divide into 6 3 times and that means 4 out of each 6 sets of sundaes have nuts so 4 times 3 is 12

Answer:

Step-by-step explanation:

3a)

find side HP  , let's set side HP = c in the law of cosines formula

then

c = sq rt [ 23^2 + 12^2 - 2*12*23*cos(117) ]

c = sq rt [ 529 + 144 - (-250.6027559) ]

c = sq rt [ 673 + 250.6027559 ]

c = sq rt [ 923.602755 ]

c = 30.39

then

HP = 30.4  ( rounded to nearest 10th )

3b)

let PR = c, then law of cosines is (we need angle Q also 180=24+97+Q is 59°

c = sq rt [ 9^2 + 22^2 - 2*9*22*cos(59) ]

c = sq rt [ 81 + 484 -396*0.5150380 ]

c = sq rt [ 565 - 203.955 ]

c = sq rt [ 391.04495]

c = 19.7748

PR = 19.8  ( rounded to nearest 10th )

3c)

they want us to find ∠B,   in the formula for cosines ∠B is really ∠C, it's a bit confusing.. I'm sure they did that on purpose to mess people up.  Kind of underhanded  :/    Tell the teacher that you're "appalled" at the deviousness of the test  :/   stage a protest against math that teaches treachery  :P  storm the principals/ dean's  office with paper airplanes and pictures of anime   :DDD  okay back to math.

a=28

b=17

c=15

since we want angle B then the formula looks like

B= arcCos ( a^2 + c^2 - b^2 / 2*a*c)  so we'll avoid messing up the which side is which ... by setting up the formula this way   .. got it?

B = arcCos [28^2 + 15^2 - 17^2 / 2*28*15]

B = arcCos[784 + 225 - 289 /840 ]

B = arcCos[720/ 840]

B = arcCos[0.85714285]

B = 31.0027 °

that it came out so close to an integer I'm pretty sure it's right

∠B = 31 .0 °  ( rounded to the nearest 10th )

3d)

find ∠A

set it up carefully again, they are asking us to move the variable around again

a = 18

b= 28

c= 12

then the formula looks like

∠A = arcCos[ b^2 + c^23 - a^2 / 2*b*c ]

∠A = arcCos[28^2 + 12^2 - 18^2 /2*28*12 ]

∠A = arcCos[784 + 144 -324 / 672 ]

∠A = arcCos[604/672]

∠A = arcCos[0.8988095]

∠A =25.99797 °

∠A =26.0 °  ( rounded to nearest 10th)

Answer:

nota entonces jwbsbsbwhe de un 2

Answer: 387.9 m

Step-by-step explanation:

Volume of a Sphere:

V=\frac{4}{3}\pi r^3

V=

3

4

​

πr

3

\text{radius} = 5.7

radius=5.7

meters

\text{Plug in:}

Plug in:

\frac{4}{3}\pi (5.7)^3

3

4

​

π(5.7)

3

775.734624395

775.734624395

Use calculator

\text{Volume of Hemisphere HALF of Volume of Sphere:}

Volume of Hemisphere HALF of Volume of Sphere:

\frac{775.734624395}{2}

2

775.734624395

​

Divide volume by 2

387.867312198

387.867312198

\approx 387.9\text{ m}^3

≈387.9 m

3

The volume of a hemisphere with a radius of 5.7 m is 193.83534 m³.

Volume is a mathematical term used to describe how much three-dimensional space an item or closed surface occupies. Volume is measured in cubic units like m3, cm3, in3, etc.

Volume is sometimes referred to as capacity.

We have,

Radius = 5.7 m

So, the Volume of Hemisphere

= 2/3 πr³

= 2/3 x 3.14 x (5.7)³

= 2/3 x 3.14 x 185.193

= 193.83534 m³

Thus, the volume is 193.83534 m³.

Learn more about Volume here:

https://brainly.com/question/1578538

#SPJ2

Answer:

85 cm squared

Answer:

The vertex of the graph of g is 2 units above the vertex of the graph of f.

Step-by-step explanation:

The vertex of the graph of g(x) is 2 units above the vertex of the graph of f(x). Then the correct option is A.

The function is an expression, rule, or law that defines the relationship between one variable to another variable. Functions are ubiquitous in mathematics and are essential for formulating physical relationships.

The graph of f(x) = x² was transformed to create a graph g(x) =f(x)+2.

Then the g(x) will be

g(x) = x² + 2

We know that the graph of the g(x) shifted to 2 units upward because we added 2 in the function.

The graph is shown.

The vertex of the graph of g(x) is 2 units above the vertex of the graph of f(x).

Thus, the correct option is A.

More about the function link is given below.

https://brainly.com/question/5245372

Answer:

10c - 2

Step-by-step explanation:

Answer:

B. 10c + - 2

Step-by-step explanation:

(7c + 2) - (-3c + 4)

(7c + 2) - (-3c - 4)

7c + 2 + 3c - 4

10c + 2 - 4

10c - 2

9514 1404 393

Answer:

  dollars per hour

Step-by-step explanation:

If m is the slope, the units of m can be found by considering the units of x and y.

  y is in dollars

  x is in hours

Then from the point of view of units, we have ...

  dollars = m × hours

  m = dollars/hours

The slope in the equation is the rental charge in dollars per hour.

Answer:

shortest:  33 feet  

second:  66 feet

third:  58 feet

Step-by-step explanation:

s = shortest side  (33)

2s = second side   (66)

25 + s = third side   (58)

157 = s + 2s + 25 + s

157 = 4s + 25

4s = 132

s = 33

Answer:

61/60

Step-by-step explanation:

answer:

61 / 60

step-by-step explanation:

5 / 12 + 3 / 5

= 25 / 60 + 36 / 60

= 61 / 60

Answer It urges the reader to remember the six hundred

Step-by-step explanation:

Answer:

its D

i got it right

Step-by-step explanation:

Answer:

$120

Step-by-step explanation:

$1,440/12= $120

Hope this helps :)

Answer:

120

Step-by-step explanation:

1440÷12=120..... .........

Answer:

6i(9i)

Step-by-step explanation:

Answer:

AGREE!

Step-by-step explanation:

"I agree with Lin, she used the correct formula to get this answer"