Solve for the following system of equations by using the substitution method for x-y=0 and x-y-2=0

Answer:

25^2=625

24^2= 576

7^2= 49

as 625 = 576+49 so 7,24,25 form a Pythagorean triplet

similarly

9,40,41 also is a Pythagorean triplet

Answer:

Jack can form four rectangular prisms with 20 unit cubes.

Step-by-step explanation:

Number of unit cubes Jack has = 20

Factors of 20 = 1, 2, 4, 5, 10, 20

The possible dimensions of a rectangular prism that can be formed by these unit cubes may be,

1 × 1 × 20 (One cube at the base)

1 × 2 × 10 (2 cubes at the base)

1 × 4 × 5 (4 cubes at base in a single row)

2 × 2 × 5 (4 cubes at the base with 2 cubes in length and 2 cubes in width)

Therefore, Jack can form four rectangular prisms with 20 unit cubes.

Answer:

$253.33

Step-by-step explanation:

i did the test

Answer:

True

Step-by-step explanation:

Dilations preserve angle measure, betweenness of points and collinearity. It does not preserve distance. Simply, dilations always produce similar figures

1.

AB:

a² + b² = c²

'a' and 'b' are legs, while 'c' is the hypotenuse

3.6² + 5.2² = 12.96 + 27.04

c² = 40

c = √40

c ≈ 6.3

m∠A:

sine, cosine, tangent

soh - [tex]\frac{opposite}{hypotenuse}[/tex]

cah - [tex]\frac{adjacent}{hypotenuse}[/tex]

toa - [tex]\frac{opposite}{adjacent}[/tex]

∠a:

5.2 = opposite

6.3 = hypotenuse

[tex]\frac{5.2}{6.3}[/tex] = 0.825396...

x = sin^-1(0.825396)

x = 55.6 ≈ 56º

∠b:

90º + 56º = 146

180 - 146 = 34º

repeat for the rest of the problems

The value of x using the concept of similar triangles is; x = 41/36

Two triangles are said to be similar if their corresponding angles are congruent and their corresponding sides are proportional. So you can find the dimensions of a triangle using another triangle. If ABC and XYZ are two similar triangles, you can find the associated angles and side lengths using the formulas below.

∠A = ∠X, ∠B = ∠Y, and ∠C = ∠Z

AB/XY = BC/YZ = AC/XZ

Thus, our Triangle is solved as;

4/9 = 24/(12x - 3)

24(4/9) = 12x - 3

32/3 = 12x - 3

32 = 36x - 9

36x = 41

x = 41/36

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Answer:

neither

Step-by-step explanation:

parallel run side by side and perpendicular cross at 90 degree angle.  these equations come out to looking like a X

Answer:

3

Step-by-step explanation:

To find f(3) we just need to plug in 3 wherever we see an n

f(3) = f(3 - 2) + f(3 - 1)

f(3) = f(1) + f(2)

Since f(1) and f(2) are given, we can plug in the respective values

f(3) = f(1) + f(2) → f(3) = 1 + 2 = 3

Answer:

3

Step-by-step explanation:

I just did it on Khan

Answer:

the total number of students is 1240

Step-by-step explanation:

the difference between 11 and 9 is 2

124÷2=62

62×11=682

62×9=558

682+558=1240

pls give me brainliest!

Answer:

12.4 units

Step-by-step explanation:

The diameter of circle J is represented by KN. Half of KN is KJ and JN which means these represent the radius. Since JN equals 12.4 and JN is the the radius, then the radius of circle J is 12.4 units which is answer choice D.

The radius of the given circle is 6.2 unit. So option B is correct.

A line segment from a circle's or sphere's center to its perimeter or boundary is known as the radius in geometry. It is a crucial component of spheres and circles and is frequently abbreviated as "r". When discussing multiple radiuses at once, the plural form of radius is "radii". The diameter of a circle or sphere is the longest line segment connecting all points on the opposite side of the centre, and the radius is equal to half of the diameter in length. It can be written as d/2, where d is the circle's or sphere's diameter. Look at the illustration of a circle below that depicts the connection between radius and diameter.

Given that,

A circle,

which contains diameter KN of length 12.4 unit

and chord 10.8 unit.

The radius = ?

It is known that, the length of the radius is half of the diameter of the circle,

R = D/2

  = 12.4/2

  =  6.2

Therefore, the length of the radius is 6.2 unit.

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Answer:

the answer is B, you can try graphing them if u need to verify it

Answer:

You didnt say the price otherwise how am i suppose to give you the answer

Step-by-step explanation:

Answer: i-

Step-by-step explanation:

Answer:

COS(225°)= -.707

SIN(225°)= -.707

Answer:

cos(225)= 0.3673193677

sin (225)= -0.930094878

Step-by-step explanation:

Answer:

-2

Step-by-step explanation:

9-(-1)=10

-3-2=-5

10/-5=-2

If this is correct brainliest would be highly appreciated

Answer:

The y-intercept is 3.

Step-by-step explanation:

Step 1: Find the slope of the line.

m =  rise/run = y2 - y1/ x2 - x1

m= 9-(-1)/-3-2

m=10/-5 = -2

Slope-intercept form equation is y = mx + b

Step 2: Plug in slope to slope-intercept equation and solve for b (y-intercept)

y = -2x + b

We can use the point (2, -1)

Plug it in.

-1 = -4 + b

Solve.

b = 3

1/2*7/8=7/16

Answer:

7/16

The required fraction of 1/2 of 7/8 is given as 7/16.

Fraction is defined as the number of compositions that constitutes the Whole.

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

here,
1/2 of 7/8 = 1/2 × 7/8
               = 7 / 16

Thus, the required fraction of 1/2 of 7/8 is given as 7/16.

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.03 is the answer. hope it help!:-)

Answer:

0.02623 rounds to 0.03

Step-by-step explanation:

ones. tenths hundredths thousands

we look at the thousandths place when rounding to the hundredths

the thousands place is 6 (which is 5 or greater) so we will round the hundreds place up 1

0.02623 rounds to 0.03

Answer:D

Step-by-step explanation:

There is no way this graphs are going to intersect.

the straight line has the equation y=1/2x +1 and the u shape graph has the quation y=x^2  

The is no way this lines are going to intersect.

Answer:

take your time dont rush

Step-by-step explanation:

Answer: sqrt85

Step-by-step explanation:Using the distance formula we see that the distance between the two points is sqrt of 85

Answer:

The answer is the lenght of the line which you can use :

d=sqrt[(y2-y1)^2 + (x2-x1)^2]

= sqrt[(7-9)^2 + (-2-7)^2]

= sqrt(4+81)

=sqrt(85)

approximately: 9.219544 UNITS

HOPE THAT HELPS

Answer:

A

Step-by-step explanation:

I added all the numbers for both trucks and I got 800 on both of them.

Answer:

99

Step-by-step explanation:

26-4=22. 4+7=11. 22-11=11. 9 times 11=99

Answer:

Answer:

99

26-4=22. 4+7=11. 22-11=11. 9 times 11=99

Step-by-step explanation:

Answer:300

Step-by-step explanation:

Answer:

[tex]28in^2[/tex]

Step-by-step explanation:

Split it up.

3 rectangles.

You have two congruent ones, whose area is 2 * 4 = 8 and their total is 16

Then you have another one whose area is 6 * 2 = 12

16 + 12 = 28

Answer:

-20

Step-by-step explanation:

It is the farthest from 0.

Answer:

A. -20

Step-by-step explanation:

The absolute value means take the positive value

A. -20

abs(-20) = 20

B. 0

abs(0) = 0

C. 10​

abs(10) = 10

20 is the largest value

Answer:

center: (0,0)

radius: 4 units

Step-by-step explanation:

the circle goes through points (0,4), (0,-4), (4,0), and -4,0).

if you notice, all four points are 4 away from the origin, (0,0). this means that there center is (0,0).

if you start at one of the points and go to the origin, it will be 4 units. that will be your radius

Answer:

x=-2 and x=-8

Step-by-step explanation:

(x+5)=3

Subtract 5 from both sides, to isolate x

x=-2

-(x+5)=3

Distribute the -

-x-5=3

Add 5 to both sides to isolate x

-x=8

Multiply both sides by -

x=-8

Hope this helps! Please mark brainliest :)