In the system 4x + 9y = 7 and and 4x - 9y = 9, would I add or subtract this system to solve for x? To solve for y?

add to solve for x or add to solve for y

subtract to solve for x or subtract to solve for y

add to solve for x and subtract to solve for y

subtract to solve for x and add to solve for y
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Answer:

154 ft

Step-by-step explanation:

A right triangle is formed, where the height of the wheel (h) is one leg,  the distance between you and the base of the wheel is the other leg, and the distance between you and the top of the wheel is the hypotenuse (the angle included between the last two sides is 51°)

From definition:

tan(51°) = opposite/adjacent

tan(51°) = h/125

h = tan(51°)*125

h = 154 ft

Answer:

7

Step-by-step explanation:

V=lwh

3=7·3·1

3=7

Step-by-step explanation:

If K is the midpoint of JL, then JK and KL will be congruent to each other because a midpoint divides a line into two congruent segments.

JK ≅ KL

Now, let's add in the expressions.

2x + 4 = 4x - 8

-2x + 4 = -8

-2x = -12

x = 6

So, the value of x is equal to 6. Since JK is congruent to KL, then we can plug in x for one of the equations and multiply that answer by 2 so we can find the measurement of JL.

JK = 2(6) + 4

JK = 12 + 4

JK = 16

16 * 2 = 32

So, the measurement of JL is equal to 32.

Answer:

1. Diameter

2. more than 1 but less than 2

3. ans: 3.14

4. ans: 3.142

5. 33.7 inches

6. a) 100.57 b) 2.36 (2 dp) c) 236.66 d) 113.14 e)20.11

f) 86.11

Answer:

B.

Step-by-step explanation:

[tex]\frac{2}{5} *4=\frac{8}{5}[/tex][tex]x[/tex]

[tex]\frac{2}{5} *-8=-\frac{16}{5}[/tex]

Answer:

b

Step-by-step explanation:

Answer:

drawing a red marble would be 2 in a 14 or 1/7 chance n drawing a yellow would be 1/2.

The probability of drawing a yellow marbles is 1/2

Probability means the quality or state of being probable; the extent to which something is likely to happen or be the case

We have,

Bag contains marbles

Red=2

Blue=5

Yellow=7

Total marbles in bag = 2+5+7=14

The total number of ways of selecting one marble out n(s) = 14[tex]C_{1}[/tex]

                                                                                                      = 14 ways

Let E be the event of selecting yellow marbles

Since, the bag contains 7 yellow marbles

one yellow marble can be draw from 7 yellow n(E) =7[tex]C_{1}[/tex]

                                                                                        = 7 ways

We know the formula,

P(E)= n(E)/n(s)

       = 7/14

        = 1/2

Hence, the probability of drawing a yellow marbles is 1/2

To learn more about probability from here

https://brainly.in/question/3144050

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Answer:

[tex]v \approx 415.2\,cm[/tex]

Step-by-step explanation:

The angle T is:

[tex]\angle T = 180^{\circ} - 27^{\circ} - 78^{\circ}[/tex]

[tex]\angle T = 75^{\circ}[/tex]

Now, the length of v is determine by the Law of Sines:

[tex]\frac{410\,cm}{\sin 75^{\circ}} = \frac{v}{\sin 78^{\circ}}[/tex]

[tex]v = (410\,cm)\cdot \left(\frac{\sin 78^{\circ}}{\sin 75^{\circ}} \right)[/tex]

[tex]v \approx 415.2\,cm[/tex]

Answer:

All solutions

Step-by-step explanation:

Regardless of what x equals the answer will work

Answer:

x=2

Step-by-step explanation:

3(x+4)= 12 + 3x

x=2              12+3x

3(2+4)          x=2

3x6                3x2=6

18                      12+6=18

Answer:

Step-by-step explanation:

5

Answer:

y = (6-4x) / 9

Step-by-step explanation:

6 = 4x+9y

Subtracting 4x to both sides

6 - 4x = 9y

Now dividing both sides by 9

We'll get

(6-4x)/9 = y

OR

y = (6-4x) / 9

Answer:

y = 2/3 - 4x/9

Step-by-step explanation:

6 = 4x + 9y

you have to isolate the 9y soo, subtract 4x on both sides

6 - 4x = 9y

now, divide both sides by 9

6/9 - 4x/9 = y

simplify!

2/3 - 4x/9 = y

Answer:

4:14

Step-by-step explanation:

Answer:

I think it's 8.6 or 1.4

Step-by-step explanation:

Turn 10% into a decimal form... .10

.10 x 14 = 1.4

10 - 1.4 = 8.6

Idk oof

Answer:

10.7 Celsius

Step-by-step explanation:

I did it on IXL

Answer:

The answer is 49

Step-by-step explanation:

PLEASE MARK AS BRAINLIEST

HELPING ON OTHER OF YOUR PROBLEMS

Answer:

m∠B = 24°

Step-by-step explanation:

m∠A + m∠B = 180°

m∠A = 5 ( m∠B + 7.2 )

5 ( m∠B +7.2 ) + m∠B = 180

5m∠B + 36 + m∠B = 180

6m∠B = 180 - 36

6m∠B = 144

m∠B = 24°

Answer:

$25.65

Step-by-step explanation:

135 (19%)

$25.65

Answer:

is c

Step-by-step explanation:

use math    way if you have any doubts

Answer:

the correct graph is graph c.

Step-by-step explanation:

i did the asignment on edg

Answer:

The answer to this question is c

Step-by-step explanation:

10 nickels and 4 pennies

the first choice has a negative 7 and the second choice has a negative 161 these are both negatives in different places which cause a different reaction

Answer:

idk

Step-by-step explanation:

sorry

Answer: x=2

Step-by-step explanation:

I am assuming you are asking which x fits the equation. To see if x works for the equation, you would plug it in.

x=-2

3(-2)+7=13

-6+7=13

1≠13

x=2

3(2)+7=13

6+7=13

13=13

x=5

3(5)+7=13

15+7=13

22≠13

Answer:

In a 30 60 90 triangle, the longer leg = shorter leg * square root (3)

longer leg = 8 * square root (3) = 8 * 1.7320508076

= 13.8564064606

Step-by-step explanation:

Answer:

~31.42

Step-by-step explanation:

I multiplied 10 x pi and it gave me 31.4159265359 and I rounded up to 31.42

Answer:

A rational number is the QUOTIENT of two INTEGERS while a rational expression is a QUOTIENT of two FUNCTIONS.

Hope this helps!

:)

Answer:

quotient

integers

quotient

functions

Step-by-step explanation:

Step-by-step explanation:

In the mensuration of a triangular prism we can find the total surface area by solving for the areas of  individual shape.

The triangular prism consist of

1. three rectangular surfaces

2. two triangular surfaces.

Hence the total surface area is the sum of the areas of the rectangular surface

= [tex](l* w) +( l*w)+(l*w)\\[/tex]

and the sum of all areas of triangular surfaces

= [tex](\frac{1}{2}bh) + (\frac{1}{2}bh)[/tex]

In summary just find the area of each shape and add them together.

Answer:

ummm, I'm not sure but I think that it's the second or the last one. ‍

Answer:

Answer Cone Z and Cylinder Y.

Step-by-step explanation:

The relationship between the volume of the cone and the volume of the cylinder with the same height and same base is the volume of the cone is 1/3 of the volume of the cylinder.

hope that helps love!

Answer:

(1, 1), (2, 2.333) and (3, 3.666).

Step-by-step explanation:

To find solutions for this equation, we can just choose values for x and then calculate the values of y.

So, for x = 1, we have:

4*1 - 3y = 1

3y = 3

y = 1

For x = 2, we have:

4*2 - 3y = 1

3y = 7

y = 2.333

For x = 3, we have:

4*3 - 3y = 1

3y = 11

y = 3.666

The points we need to plot is (1, 1), (2, 2.333) and (3, 3.666).

Check the image attached for the plot.

Three solutions for the linear equation are: (0, -0.333), (1,1) and (3, 3.667).

The graph is given at the end of this answer.

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

The equation is:

[tex]4x - 3y = 1[/tex]

In slope-intercept formula, we have that:

[tex]3y = 4x - 1[/tex]

[tex]y = \frac{4}{3}x - \frac{1}{3}[/tex]

Thus, the solutions are given by the following pairs of points: [tex](x, \frac{4}{3}x - \frac{1}{3})[/tex]

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

For x = 0, we have that [tex]y = \frac{4}{3}(0) - \frac{1}{3} = -\frac{1}{3} = -0.333[/tex], thus, one solution is (0, -0.333).

For x = 1, we have that [tex]y = \frac{4}{3}(1) - \frac{1}{3} = \frac{3}{3} = 1[/tex], thus, one solution is (1,1).

For x = 3, we have that [tex]y = \frac{4}{3}(3) - \frac{1}{3} = \frac{11}{3} = 3.667[/tex], thus, one solution is (3, 3.667).

These solutions are labeled on the graph given at the end of this answer.

A similar problem is given at https://brainly.com/question/16768849