Please help me! I’m so lost and don’t know where to start.

Answer:

Step-by-step explanation:

1) y = 50x + 2500

2) y = 200x + 1000

if we build a system with the two equations, we have:

50x+2500 = 200x + 1000

150x = 1500

x = 10

y = 2000 + 1000 = 3000

3) 10

4) $3000

Answer:

x= -4,-14

Step-by-step explanation:

Try first to solve the equation by factoring. Be sure that your equation is in standard form before you start your factoring attempt.

Answer:

96

Step-by-step explanation:

To get 5 digit numbers using the digits 0,1,2,3,4 exactly once = 4*4*3*2*1 = 96.

Step 1:

1st digit can be 1, 2,3,4 ( it can't be 0) so there are 4 choices.

Step 2:

2nd digit = 4 choices.

Step 3:

3rd digit = 3 choices

Step 4:

4th digit = 2 choices

Step 5:

5th digit = 1 choice .

So the number of different 5 digit number is 4*4*3*2*1 = 96

Answer:

y= -1/4x+2

Step-by-step explanation:

y=mx+b is the slope intercept form.

We first must isolate y by adding 1/2x on both sides.

-2y=-4+1/2x

next we multiple by -1/2 to get rid of the -2

y=2-1/4x

y=-1/4x+2

Answer:

$45.90

Step-by-step explanation:

Multiply without the decimal points, then put the decimal point in the answer: 85 x 54 = 4590

8.5 has 1 decimal place

5.4 has 1 decimal place

Therefore, the answer has 2 decimal places

= 45.90

Refine: 45.9

The answer is 45.9

Answer:

Side GI= 2

Step-by-step explanation:

Photo attached, used SOH CAH TOA method.

Answer:

14

Step-by-step explanation:

The  difference between two positive numbers is 7 and the difference between these  cubes is 805. If 'A' represents their product and 'B' represents the sum of their squares,

So,

Let the number be n and m

A = n × m = nm

B = n² + m² = (n + m)²

Now

n³ - m³ = 805

(n - m) (n² + m² + nm) = 805

Since difference is 7

7 × n² + m² + nm = 805

n² + m² + nm = 805/7

n² + m² + nm = 115

(n² + n) + (m² + m) = 115

A + B = 115

Now

On squaring the first eq.

(n - m)² = (7)²

(n - m)² = 49

B - 2A = 49

Now

A + B - B + 2A = 115 - 49

A + 2A = 66

3A = 66

A = 66/3

A = 22

By using 2

B - 2(22) = 49

B - 44 = 49

B = 49 + 44

B = 93

A - B = 22 - 93 = -71

[tex]\bold{ A-B=-71  }[/tex] 

Answer:

53 mins

Step-by-step explanation:

Answer:

87.357

Step-by-step explanation:

use TOA to solve for the missing angle

let x= angle

tan(x)=5200/240

x=87.357

Answer:

9.64797292×10^28

Step-by-step explanation:

Answer:

Step-by-step explanation:

[tex]x^2 - 7x+9 = 4\\\\\underline{x^2 - 2\cdot x\cdot\frac72+\big(\frac72\big)^2}-\big(\frac72\big)^2+9 = 4\\\\\big(x-\frac72\big)^2-\frac{49}4+9 = 4\\\\ \big(x-\frac72\big)^2=\frac{49}4-\frac{36}4+\frac{16} 4\\\\ \big(x-\frac72\big)^2=\frac{29}4\\\\ x-\frac72=\pm\sqrt{\frac{29}4}\\\\ x=\frac72\pm\frac{\sqrt{29}}2[/tex]

6×ax+6×by =6ax+6by =3a+2b,6×bx-6×ay=3b-2a=6bx-3a+2b

Answer:

i) 0 is the additive identity of rational number

Answer:

1) [tex]-2/3(x+5)+4(x+5)-10/3(x+5)[/tex]

[tex]=4(x+5)-10/3(x+5)-2/3(x+5)[/tex]

[tex]=4(x+5)-(x+5)[10/3+2/3][/tex]

[tex]=4(x+5)-(x+5)(10+2/3)[/tex]

[tex]=4(x+5)(12/3)(x+5)[/tex]

[tex]=4(x+5)-4(x+5)[/tex]

[tex]=0[/tex]

[tex]So, Jada~ is ~correct, because ~ by ~adding~negative ~term~we ~get~the~same~value\\of~negative~term~ so, both ~are ~ equaled~ out ~ and ~ get~ 0[/tex]

-------------------------

hope it helps...

have a great day!!

Answer:

C.

Step-by-step explanation:

The sqrt of -16 is the same as the sqrt of 16 * the sqrt of -1. The sqrt of 16 is 4, and the sqrt of -1 is i. Multiply the two to get 4i.

Both values have the same exponent ( they are both 10^20) so first subtract the numbers:

8.64 - 7.83 = 0.81

You would now have 0.81 x 10 ^20

But to be in scientific notation you need a number to the left of the decimal.

0.81 would become 8.1 and because you move the decimal 1 place to the left, you would subtract 1 from the original exponent so 10 ^20 would become 10 ^19

The answer is 8.1 x 10 ^ 19

Answer:

B = 0.81 x 10^ 20

Step-by-step explanation:

=(8.64 x 10^ 20)- (7 83x 10^20)

=8.1 x 10^19

which is also written as

= 0.81x 10^20

Answer:

It is not a right triangles because 15^2 + 13^2 is NOT EQUAL to 19^2

let x, y, and z be the angles inside the triangle.

Law of cosines says:

19^2 = 13^2 + 15^2 - 2(13)(15)cos x

361 = 169 + 225 - 390 cos x

-33 = -390 cos x

-33/-390 = cos x

11/130 = cos x

x = inverse cosine (11/130)

= 85.14609471338569.....

Per law of sines:

sin x/19 = sin y / 13

(13/19)sinx = sin y

inverse_sine ( (13/19) sin x) = y

y = 42.9810733896016548....

Per law of sines

sin x/19 = sin z / 15

z = inverse_sine( (15/19) sin x)

= 51.8728352950227805....

So it is an acute triangle and yes, these angles add up to 180

Answer:

acute

Step-by-step explanation:

Answer:

3 triangles

Step-by-step explanation:

Perimeter of triangle = a + b + c

Given that :

P = 12

and a, b, c are natural numbers

Let :

Side A = a

Side B = b

Side C = 12 - (a + b)

Side A + side B > side C - - - (condition 1)

a + b > 12 - (a + b)

a + b > 12 - a - b

a + a + b + b > 12

2a + 2b > 12

2(a + b) > 12

a + b > 6

Side A - side B < side C

a - b < 12 - (a + b)

a - b + a + b < 12

2a < 12

a < 6

b < 6 (arbitrary point)

Going by the Constraint above :

The only three possibilities are :

(2, 5, 5)

(3, 4, 5)

(4, 4, 4)

Total number of triangle = 3

Equilateral triangle (all 3 sides equal) = (4, 4, 4) = 1

Isosceles triangle (only 2 sides equal) = (2, 5, 5) = 1

Answer:

i cant read

Step-by-step explanation:

blurry

Answer:

46

Step-by-step explanation:

1 gallon is 4 quarts so you would do 11x4=44 and .05x4=2

44+2=46

Answer: yes 3/4 is greater

converting both fractions to decimals. The decimal 0.75 is bigger than 0.5, so 3/4 is bigger than 1/2.

Answer:

3/4 is greater than 1/2.

Step-by-step explanation:

One way to compare fractions is by making them have the same denominator.

You can do this by finding the least common denominator (LCM).

First, list the multiples of each denominator.

4: 4, 8, 12, 16, 20

2: 2, 4, 6, 8, 10

As you can see, 4 is the LCM.

Now, change the fractions to where they denominators of 4.

**WHICHEVER NUMBER YOU MULTIPLY THE DENOMINATOR BY, YOU MUST ALSO MULTIPLY IT BY THE NUMERATOR.**

[tex]3/4*1/1=3/4[/tex] (STAYS THE SAME)

[tex]1/2*2/2=2/4[/tex]

Now, as you can see, 3/4 is larger than 2/4.

Therefore, 3/4 is larger than 1/2.

Answer:

Step-by-step explanation:

m^2(m^2+9)+20

Answer:

Hay 32 pollitos en total.

Step-by-step explanation:

Para contestar a la pregunta planteada se debe realizar el siguiente razonamiento matemático:

Casas = 2

Gallineros = 2

Cercados = 2

Gallinas = 2

Pollitos = 2

2 x 2 x 2 x 2 x 2 = X

4 x 2 x 2 x 2 = X

8 x 2 x 2 = X

16 x 2 = X

32 = X

Por lo tanto, hay 32 pollitos en total.

Answer:

68:76.5

Step-by-step explanation:

create the ratio 68/x=8/9, then simplify the side you can so get 68/x=.8888... then multiply both sides by x to get rid of the fraction, 68=.8888...x. now divide both sides by .8888... to get x by itself, 76.5=x

if you have any questions, leave them int eh comments and i will try to answer them, if this helped, pls give brainliest

Answer:

Step-by-step explanation:

The square length of hypotenus (the side lenght that sees 90 degrees) is equal to sum of square length of side lengths

Let x represent the missing side

6^2 = 4^2 + x^2

36 = 16 + x^2 subtract 16 from both sides

20 = x^2 and x = 2[tex]\sqrt{5}[/tex]

Answer:

quadrilaterals

Step-by-step explanation:

The shape is at the top of the quadrilateral hierarchy are quadrilaterals.

A quadrilateral is a polygon that has four sides and four angles. Types of quadrilateral are parallelograms, square, rectangle, kite.

All squares and rectangles are parallelogram while all shape with four sides are quadrilaterals.

The shape is at the top of the quadrilateral hierarchy are quadrilaterals.

Find out more on quadrilateral at: https://brainly.com/question/23935806