If 5x – 3y = 1 and
x - 2y = - 4, then xy = ? .
A 5
B 4
© 6
D 8
E 9

In a pair of similar triangles, the corresponding sides are proportional. ... When the sides are corresponding it means to go from one triangle to another you can multiply each side by the same number. In the diagram of similar triangles the corresponding sides are the same color.

( if this is wrong I apologize)

Answer:

9

Step-by-step explanation:

If you want the number to be divisible by three make sure the sum of all the numbers are divisible by three. Add all the numbers you have to see what they make.

3+4+2+8+4=21

So we just need to find the greatest number we can add to that to have it remain divisible by three. A number divisible by three is 30, and we can add 9 to 21 to make 30. Of course, there are other numbers we could add, but nine is the largest one-digit number that would work. Other smaller numbers include 3 and 6.

3+4+2+8+4+9=30

Now we check to see if our number is divisible by three

342984÷3 = 114328

114328 is a whole number so we know it's divisible.

Answer:

rational, whole number, integer

Step-by-step explanation:

-16 is:

rational

whole number

integer

The function whose graph is plotted below is given by: Option B:f(x) = cos(x)

There are many tools we can use to find the information of the relation which was used to form the graph.

A graph contains data of which input maps to which output.

Analysis of this leads to the relations which were used to make it.

For example, if the graph of a function is rising upwards after a certain value of x, then the function must be having increasingly output for inputs greater than that value of x.

If we know that the function crosses x axis at some point, then for some polynomial functions, we have those as roots of the polynomial.

The missing graph is attached below.

It is either sine or cosine (as known from the options).

The sin function is 0 at x = 0, so we're sure the function isn't sin or negative sin as 0 would make it fall on 0.

The function is definitely [tex]\cos(x)[/tex] since at x = 0 it is 1 and at x = [tex]\pi[/tex] it is -1 (while if it would be -cos(x), it would be -1 at x =0 and 1 at x = [tex]\pi[/tex] )

Thus, the function whose graph is plotted below is given by: Option B:f(x) = cos(x)

Learn more about cosine functions here:

https://brainly.com/question/14290164

Answer:

B.

Step-by-step explanation:

Answer:

T=2.25

Step-by-step explanation:

To find the area of a triangle, you do the length times height, times two. Therefor T=2.25 (36/8, then you get 4.5, divide that by 2, get 2.25, 2.25x8x2=36.)

Answer:

[tex]-z^{2} =-25[/tex]

Step-by-step explanation:

The value of z is given as [tex]-5[/tex]

The expression is given as [tex]-z^{2}[/tex]

Substitute the value of z in the expression:

[tex]=-(-5)^{2}[/tex]  {add the value inside the bracket to avoid mistakes}

[tex]=-1[/tex] × [tex](-5)^{2}[/tex]

[tex]=-1[/tex] × [tex]((-5)[/tex] × [tex](-5))[/tex]

[tex]=-25[/tex]

Answer:

B = 115

C = 65

x = 7

y = 16

Step-by-step explanation:

To get angle B use the same side interior therom. 180-65 = 115 = B

C = 65 since you just use the same method as above and D equalls 115.

x = 7 since they are parrelle lines with same lenght. and y equalls to 16 since it is parallel to the bottom line.

That is all you answer.

Answer:The system 150x+400y=1950 and x = y+2 could be used to determine the number of small boxes and large boxes ordered where x represents the number of small boxes and y represent the number of large boxes.

Step-by-step explanation:

Answer:

Let s = the number of small boxes purchased

Let l = the number of large boxes purchased

100s + 350l= 2400

s+l= 9

Answer:

A rectangle always has... 4 sides, 4 angles, all right angles, and opposite sides parallel

Answer:

A, B, D, E

Step-by-step explanation:

A   4 sides

В.   4 angles

D.   all right angles

E    opposites sides parallel

Answer:

About 51.94 rupees (rounded).

Step-by-step explanation:

40000 / 770

Given:

In the given cone,

Radius of the cone = 7.2 m

Slant height of the cone = 17 m

To find:

The surface area of the cone.

Solution:

The surface area of a cone is:

[tex]A=\pi rl+\pi r^2[/tex]

Where, r is the radius of the cone and l is the slant height of the cone.

Putting [tex]\pi=3.14,\ r=7.2,\ l=17[/tex] in the above formula, we get

[tex]A=(3.14)(7.2)(17)+(3.14)(7.2)^2[/tex]

[tex]A=384.336+162.7776[/tex]

[tex]A=547.1136[/tex]

[tex]A\approx 547.11[/tex]

Therefore, the surface area of the given cone is 547.11 square m.

Answer:

answer is 4.6666666....

Answer:

4.66 is the answer ok gshsjudh

Answer:

82 degrees is the answer

Step-by-step explanation:

angle 6 and 7 are adjacent angles and adjacent angles add up to 180 deg. thus

angle 7 = 180 - 98 = 82 deg

The measure of ∠6 and ∠7 are on a straight line. This means there sum is equals to 180 degrees. Therefore, the measure of ∠7 is 82 degrees.

The sum of angle on a straight line is 180 degrees. This simply means the total angle on a straight line is 180 degrees.

∠6 = 98 degrees

Therefore,

∠6 + ∠7 = 180°(angles on a straight line)

∠6 = 98 degrees

Hence,

98 + ∠7 = 180

subtract 98 from both sides

98 - 98 + ∠7 = 180 - 98

∠7 = 82 degrees.

learn more on angle on a straight line here: https://brainly.com/question/16025966

Answer:

If you replace the first marble, you have a higher chance of picking two blue marbles. Mathematical proof and written statement is shown below.

Step-by-step explanation:

Mathematical Proof :

For proof, we should test it out.

To find the total amount of marbles, we add up all the different colors in the bag.

5 + 5 + 5 + 5 = 20

Drawing 2 blue marbles while replacing the first probability :

The probability of drawing a blue marble at first is 5/20. If you then replace this marble, the probability doesn't change, it's still 5/20. To get the probability of getting two blue marbles and not replacing we multiply :

5/20 * 5/20 = 25/400 = 1/16

Drawing 2 blue marbles while NOT replacing the first probability :

The probability of first choosing a blue marble is 5/20, but you don't replace it, so now the probability of choosing a blue marble is 4/19, since one blue marble was taken. To find the probability of drawing two blue marbles but not replacing the first one we are going to have to multiply 5/20 * 4/19. That's 1/19.

So the probability of getting two blue marbles and replacing the first is 1/16, and the probability of getting two blue marbles and not replacing the first is 1/19. Well, which is greater? 1/16 is greater. If you replace the first marble, you have a higher chance of picking two blue marbles.

Written Statement :

If you replace the first marble you have a higher chance of getting two blue because you are increasing the number of blue marbles in the 20 total marbles. Now there is a greater number of blue marbles there is a greater chance you will pick blue.

Answer:

V=168ft³

Step-by-step explanation:

V=

w-6

h-4

l-7  

V = 168ft³

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

take 58 degree as reference angle

using cos rule

cos 58=adjacent/hypotenuse

0.52=3.6/x

x=3.6/0.52

x=6.92

x=6.9

Answer:

4

Step-by-step explanation:

The y intercept is where it crosses the y axis

It crosses the y axis at y = 4

Answer:

D. Yes, a reasonable estimate is around 5 - $7 = $35.

Answer:

144

Step-by-step explanation:

Plug in a and b

In this case a=4, b=3

(ab)^2

( (4)(3) )^2

(12)^2

12x12

144

If this helps please mark as brainliest

Answer:

144

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Step-by-step explanation:

Step 1: Define

Identify

(ab)²

a = 4

b = 3

Step 2: Evaluate

Answer:

228mm^2

Step-by-step explanation:

Answer:

6-12i

Step-by-step explanation:

Answer:

182 miles

driving distance is 196

Answer:

A=4pi(r)^2

A=4pi(5)2

A=4pi25

A=314.16 rounds to 314.6 m

Volume=4/3pi(r)^3

volume=4/3pi(5)^3

volume=4/3pi(125)

volume=523.59 rounds to 523.6 m

hope this helps

have a good day :)

Step-by-step explanation:

Answer:

it's D

Step-by-step explanation:

Answer: Hi! The answer is, y=-(x-2)^2

Step-by-step explanation:(The explanation is in the image below) I hope that this helps you!