i need help in mathematics 7th grade pls try to answer rlly fast

Answer:

6x+2

6y+3

9+10

36+40

19+14

Sorry if this is wrong I recently learned this

Answer:

19

Step-by-step explanation:

Given

a - 6 = 13

a = 13 + 6

a = 19

Hope it will help :)

Answer:

the answer is 200 mph because you take and divide the 400 miles by 20 mph

Step-by-step explanation:

Answer:

[tex]x^2 +4x - 32[/tex]

Step-by-step explanation:

By FOIL method, [tex](x-4)(x+8) = x \cdot x + x \cdot 8 + -4 \cdot x + -4 \cdot 8 = x^2 +4x - 32.[/tex]

Answer:

6a and a(2*3) and 2(a+2a)

Step-by-step explanation:

2*3a=6a

Answer:

Step-by-step explanation:

x=5[tex]\sqrt{2}[/tex] because it is an isosceles right triangle , as we have and angle of 45 and one of 90

y is the hypothenuse of the triangle

y^2=(5[tex]\sqrt{2}[/tex])^2+(5[tex]\sqrt{2}[/tex])^2=50+50=100

y=10

the larger triangle is 30-60-90

side opposite of 90 degrees is 2y

r=20

side opposite of 60 degrees is y[tex]\sqrt{3}[/tex]

z=10[tex]\sqrt{3}[/tex]

Answer:

27

Step-by-step explanation:

x = 9

3 x 9 = 27

Step-by-step explanation:

In that equation it tells you that your slope is 2/3. It also tells you that your y intercept is -4. (Remember slope is written in y=mx+b) So first you plot your y value. (Remember that y intercept is up and down and slope is rise/fall over run) So your first point should be located at -4. Now you can began putting in your slope. Since your slope is positive, go up two and go to the right 3 times (rise/run). That's how you graph your equation.

Step-by-step explanation:

51^6(51-1)

51^6(50)

odd number × even number = even number

50 Is divisible by 25

Answer:

2/3 is quotient.

Step-by-step explanation:

2/3÷4/5=(2×5)/(3×4)=10/12=5/6

Answer:

quotient

Step-by-step explanation:

If it is a divison problem your answer will be a quotient.

Answer:

50 ft

Step-by-step explanation:

Answer:

equal to 120

3p+2c is equal to 120 and graph the solution.

Answer:

y = 3 cm

Step-by-step explanation:

We'll begin by calculating the value of x. This can be obtained as follow:

2x + 6 = 5x – 9 (opposite side of rectangle are equal)

2x + 6 = 5x – 9

Collect like terms

6 + 9 = 5x – 2x

15 = 3x

Divide both side by 3

x = 15 / 3

x = 5 cm

Next, we shall determine the length of the rectangle. This can be obtained as follow:

L = 2x + 6

x = 5 cm

L = 2(5) + 6

L = 10 + 6

L = 16 cm

Finally, we shall determine the value of y. This can be obtained as follow:

Length (L) = 16 cm

Width (W) = y =?

Area (A) = 48 cm²

A = L × W

48 = 16 × y

Divide both side by 16

y = 48 / 16

y = 3 cm

Answer:

Step-by-step explanation:

[tex]\cos(30^o)=\dfrac{\sqrt3}2[/tex]

From triangle: [tex]\cos(30^o)=\dfrac x2[/tex]

Therefore:

            [tex]\dfrac x2=\dfrac{\sqrt3}{2}\\\\x=\sqrt3[/tex]

Answer:

m = -2

Step-by-step explanation:

y = -2x - 3

Answer:

Efx=2300 may be it would help : )

Step-by-step explanation:

To find that u have to :

mass mid value(x) Number..(f) fx

10-29 19 32 608

30-39 9 38 342

40-49 9 64 576

50-59 9 35 315

60-69 9 22 198

70-99 29 9 . 261

Efx=2300

Answer:

A

Step-by-step explanation:

(-2,5)

read the X axis and then y axis

Answer:

x = 4

Step-by-step explanation:

3x - 10 = 2 | Given

3x = 12 | Add 10 to both sides to isolate 3x

x = 4 | Divide both sides by 3 to get the value of x

Answer:

4

Step-by-step explanation:

3x - 10 = 2

add

3x = 12

divide

x = 4

Answer:

valid

Step-by-step explanation:

Answer:

¿Cuántos DVD de cada tipo debe fabricar y vender para que la utilidad sea máxima?

Se debe fabricar y vender 20 DVD del modelo A y 30 DVD del modelo B. La utilidad máxima es de de S/. 1 800

Step-by-step explanation:

x : Número de DVD del modelo A

y : Número de DVD del modelo B.

                               MODELO A MODELO B TOTAL

Cantidad de caucho                  1x 1x                 50 kg.

Horas de mano de obra           1x 2x                 80 horas

U : Utilidad mensual.

La función objetivo, que se debe maximizar, es:

U=30   + 40y

x+ y [tex]\leq 50\\[/tex]  

x + 2y [tex]\leq 80[/tex]

x[tex]\geq 0[/tex]

y[tex]\geq 0[/tex]

Las coordenadas de los vértices de la región factibles son:

A (0, 0) B (50, 0) C (20, 30) D(0, 40)

Entonces, se evalúa la función objetivo en cada punto:

U (0, 0) = 30 (0) + 40 (0) = 0

U (50, 0) = 30 (50) + 40(0) = 1500

U (90, 0) = 30 (20) + 40 (30) = 1800

U (0, 40) = 30 (0) + 40 (40) =1600

Por consiguiente U tiene un valor máximo en C , en donde: x =20 ,  y = 30 .

Se debe fabricar y vender 20 DVD del modelo A y 30 DVD del modelo B. La utilidad máxima es de de S/. 1 800.

 30 x  40 y

s.a.



   x  0 (3)

  y  0 (4)

Answer: 254.714285714 or rounded to 255

Step-by-step explanation:

Have a good day:)

Answer:

254.71

Explanation:

5349 / 21 = 254.71

Answer:

c

Step-by-step explanation:

Step-by-step explanation:

It's answer is

y = 4x - 6

if x = - 1 Then

y = 4 * (- 4 ) - 6 = - 10

if x = 0

y = 4 * 0 - 6 = - 6

if x = 1

y = 4 * 1 - 6 = - 2

if x = 2

y = 4 * 2 - 6 = 2

hope it will help :)❤

Answer:

y = (x+2)²-2

Step-by-step explanation:

Use the vertex form y = a(x-h)²+k. Plug in the vertex for h and k. Solve for a and you will get 1 for that value. You can check your answers by plugging in both of those points to make sure.

Answer:

5

Step-by-step explanation:

5

Answer:

65

Step-by-step explanation:

Using Pythagorean we can say = 33^2 + 56^2 = hypotenus^2

so 1089 + 3136 = 4225

and 4225 rooted = 65

Answer:

65.

You would have to use the Pythagorean theorem in order to find the Hypotenuse (Side that is missing)

Step-by-step explanation:

The equation is:

C = a^2 + b^2 - square root of the answer.

So it would be set up like this.

56^2 = 3136

33^2 = 1089

1089 + 3136 = 4225.

The square root of 4225 is 65.

Thus, 65 is the answer.

Hope this helps!

Answer:

2

Step-by-step explanation:

8/4=2

have a good day..

Answer:

0

Step-by-step explanation:

Hi there!

Let think about this...

-6.3-6.3=h

h+6.3=-6.3

negative plus positive is negative...

h=negative number..

6.3+6.3=12.6 add a negative point=-12.6

Final Result: -12.6

Answer:

D

Step-by-step explanation:

Answer:

D is ur answer

Step-by-step explanation:

Bye