Options are line ED, line EH or line CD

Answer:

No

Step-by-step explanation:

put like terms on either side

3x-5 = 4 + 2x

subtract both sides by 2x

x - 5 = 4

add both sides by 5

x=9

so no x=-3 is NOT a solution.

please give thanks :)

and brainliest :D

Answer:

(3/2, 7/2)

Step-by-step explanation:

Given the system of equations;

y = 3x/2 + 5/4..... 1

-2x + 8y = 25 .... 2

Substitute equation 1 into 2;

From 2;

-2x + 8y = 25

-2x + 8(3x/2 + 5/4) = 25

-2x + 12x + 10 = 25

10x = 25 - 10

10x = 15

x = 15/10

x = 3/2

Substitute x = 3/2 into equation 1

From 1;

y = 3x/2 + 5/4

y = 3/2(3/2) + 5/4

y = 9/4 + 5/4

y = 14/4

y = 7/2

Hence the solution to the equation is (x, y) = (3/2, 7/2)

Answer:

4b=x3(76)+10

Step-by-step explanation:

Answer:

1/3= 5/15

Step-by-step explanation:

Answer:

..

x = 86

y = 94

z = 54

........

Answer:

b = 48 yards

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Geometry

Step-by-step explanation:

Step 1: Define

Leg a = x

Leg b = 64

Hypotenuse c = 80

Step 2: Solve for x

Answer:

Step-by-step explanation:

its the first one

an=4n

It’s the first one! an = 4n :)

Answer:

7.5kg

Step-by-step explanation:

Given that:

Monday:

Mass of sand = 24 kg

Mass of cement = 5 kg

Tuesday :

Mass of sand = 36 kg

Let mass of cement = c

Mass of cement required to make the same type of mortar mix

Mass of Sand = mass of cement

24kg = 5kg

36kg = c

By cross multiplication :

24 * c = 5 * 36

24c = 180

Divide both sides by 24

c = 180 / 24

c = 7.5 kg

Hence mass of cement required is 7.5 kg

Answer:

(2, 0)

Step-by-step explanation:

First we need to get the equation of the line passing through the points (3, 1) and (–5, –7)

Equation of a line is y = mx+c

m is the slope

m = y2-y1/x2-x1

m = -7-1/-5-3

m = -8/-8

m = 1

Substitute m = 1 and the point (3, 1) into the equation y = mx+c and get c;

1 = 1(3) + c

1 = 3 + c

c = 1-3

c = -2

The required equation is y = x - 2

We are to look for the coordinate point (x,y) for which both lines intersects, then both equations will be equal as shown;

0.5x - 1 = x - 2

0.5x - x = -2+1

-0.5x = -1

x = -1/-0.5

x = 2

Substitute x = 2 into y = x - 2

y = 2-2

y = 0

Hence the the coordinate point is (2, 0)

Answer: (2,0)

Step-by-step explanation: Because I just took the Unit Test and got 100% on it.

Answer:

4

Step-by-step explanation:

4/6÷1/6=4

.........

Answer:

2/3÷1/6

2/3×6/1

2/1×2/1

4 is the answer

Step-by-step explanation:

when it is division in fraction we will take reciprocal of it

Answer:

plot it at -2

Step-by-step explanation:

it literally tells you where to put it?

hope this helps <3

Answer:

Negative 2

Step-by-step explanation:

negative 2, is below sea level. So on a vertical number line, it will be below rather zero, on -2.

Answer:

I think the answer is 35x⁴-10

Step-by-step explanation:

3x × 4x=12x²

3x × 5=15x

2 × 4x=8x

2 × -5=-10

15x+8x=23x²

12x²+23x²=35x⁴

35x⁴-10

Answer:

[tex]-\frac{4}{5}[/tex]

Step-by-step explanation:

7/25 ÷ (-0.35) = -4/5 or -0.8

Ace Carlos

Step-by-step explanation:

43.5 miles per 1.25 gallons

= 34.8 miles per gallon.

Answer:

Step-by-step explanation:

7x - 2(7x - 9) = 2(-6x + 4)                      Remove the brackets on both sides.

7x - 14x + 18 = -12x + 8                         Combine like terms

-7x + 18 = -12x + 8                                Add 12x to both sides

-7x+12x + 18 = 8                                   Combine like terms on the left

5x + 18 = 8                                           Subtract 18 from both sides

5x = 8 - 18

5x = -10                                                Divide by 5

x = - 10/5

x = - 2                                                                                                                                                                                                                                                     Proof

LHS

7*-2 -2(7*-2 - 9)                                                                                                      -14 - 2*(-14 - 9)                                      

-14 -2 (-23)

-14 + 46

32

RHS

2(-6*-2 + 4)

2(12 + 4)

32

Answer:16 and 1/2 feet

Step-by-step explanation:

Answer: 70% i think

70% * 2400 = 1680

Answer:

Step-by-step explanation:

Given number is 5873.

To calculate the quotient when 5873 is divided by 8 we will use the approximation method.

If 5600 is the number compatible to 5873, where 5873 > 5600

5600 ÷ 8 = 700

If 6000 is the number compatible to 5873, where 5873 < 6000

6000 ÷ 8 = 750

Since, 5600 < 5873 < 6000

Therefore, [tex]\frac{5600}{8}<\frac{5873}{8}<\frac{6000}{8}[/tex]

700 < [tex]\frac{5873}{8}[/tex] < 750

Quotient for 5873 divided by 8 will be greater than 700 and less than 800.

Answer:

$308

Step-by-step explanation:

all you have to do is divide 5 by 70 and get 14 then multiply 14 by 22 and get 308

hope this helps

please mark me as brainliest

Answer:

$308

Step-by-step explanation:

70/5=$14 per hour

14*22=308

Answer:

x=-3, y=-24

Step-by-step explanation:

solved by substitution

Answer:

I am assuming these are the legs of a right triangle, in which the answer is 29

Step-by-step explanation:

Answer:

use this formula, you will get the answer

Step-by-step explanation:

√(x2-x1)²+(y2-y1)²

Answer:

RS ≈ 5.39

Step-by-step explanation:

Calculate the length using the distance formula

d = [tex]\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2 }[/tex]

with (x₁, y₁ ) = R(- 2, 6) and (x₂, y₂ ) = S(- 4, 1)

RS = [tex]\sqrt{(-4+2)^2+(1-6)^2}[/tex]

     = [tex]\sqrt{(- 2)^2+(-5)^2}[/tex]

     = [tex]\sqrt{4+25}[/tex]

      = [tex]\sqrt{29}[/tex]

      ≈ 5.39 ( to 2 dec. places )

Answer: 12

Step-by-step explanation:

Answer: 2 and 3, 150, continued its journey

Step-by-step explanation:

Answer:

The answer is "138.10"

Step-by-step explanation:

Let r also be cone base radius and h = the cone height.  

The radius for the original circle was on either side of the cone plied together = 7.  

The hypotenuse is 7, as well as a right triangle, is formed. So:

[tex]\to h^2+r^2 = 49\\\\ \to r^2 = 49-h^2[/tex]

Calculating the volume of the cone:

[tex]V = (\frac{1}{3}) \pi r^2 h \\\\[/tex]

   [tex]= (\frac{1}{3}) \pi (49 -h^2) h\\\\= (\frac{1}{3}) \pi 49h -h^3\\\\[/tex]

[tex]V'(h) = (\frac{1}{3}) \pi 49 - 3h^2\\\\[/tex]

Setting the derivative to zero and solving for h^2:

[tex]49-3h^2 = 0 \\\\ h^2 = \frac{49}{3} \\\\ r^2 = 49-\frac{49}{3} \\[/tex]

    [tex]= \frac{ 147 -49}{3} \\\\= \frac{98}{3} \\\\[/tex]

Calculating the maximum volume:

[tex]= \frac{1}{3} \pi \frac{98}{3} \frac{7\sqrt{3}}{3} \\\\= \frac{1}{3} \times 3.14 \times 32.66 \times 4.04 \\\\= \frac{1}{3} \times 3.14 \times 32.66 \times 4.04 \\\\= 138.10[/tex]

Answer:

hi

Step-by-step explanation: