Solve the system by substitution.

Answer:

the answerrrr I believe is C

Answer:

you will time 2 by 2 then 4 by 4 you get 4 and 16 the multipl

those So you get 64 inches is your anser

Answer:

The answer is d.

Step-by-step explanation:

x is "a number." When a variable and a number are next to each other, they are being multiplied. So it's 7 times a number. Then you take the product of that and add 2.

So, d is the correct answer. :D

Answer:

75

Step-by-step explanation:

65 + 10 = 75

Answer:

-2.1f-18

Step-by-step explanation:

-2.4f+0.3f=-2.1f.

-16-3=-19

Answer:

8,200= A)

Step-by-step explanation:

Answer:

Lisa is 24.

Step-by-step explanation:

56/2=28

28-4-thomas=24-lisa \

Carla is 28, Thomas is 20, and Lisa is 24. Hope this helps! :)

9514 1404 393

Answer:

  (x +3)(x +1)(x -2)

Step-by-step explanation:

A graphing calculator is a good tool for finding factors fast. Each zero (p) gives rise to a factor (x -p).

The graph shows zeros at -3, -1, and 2, so your factorization is ...

  (x +3)(x +1)(x -2)

Answer:

a31 = -334

Step-by-step explanation:

Given:

a1 = 26

a22 = -226

Find:

a31

Computation:

a22 = a + 21d

-226 = 26 + 21d

d = -12

a31 = a + 30d

a31 = 26 + 30(-12)

a31 = 26 - 360

a31 = -334

a1 = 26 and a22 = −226.

Answer:

A)  −334

Answer:

D)  Undefined slope

Step-by-step explanation:

Note that the x-coordinate (3) of both given points is 3.  This means that the two points lie on a vertical line.  The slope of a vertical line is undefined.

The correct answer is D)  Undefined slope

Answer:

19 2/3

Step-by-step explanation:

5 4/11 * 3 2/3 = 19 2/3.

Use pythagoras theorem

x² = 48² + 14²

x² = 2500

x = √2500

x = 50

Answer:

is this the one?

Step-by-step exExplanation:

Adding third equation to first one,

7

x

+

5

y

+

z

+

x

−

6

y

−

z

=

0

−

18

or  

8

x

−

y

=

−

18

.  

(

1

)

Adding 2 times of third one to second one,

−

x

+

3

y

+

2

z

+

2

⋅

(

x

−

6

y

−

z

)

=

16

−

2

⋅

18

or  

x

−

9

y

=

−

20

(

2

)

Substracting 8 times of  

(

2

)

from  

(

1

)

,

8

x

−

y

−

8

⋅

(

x

−

9

y

)

=

−

18

−

8

⋅

(

−

20

)

71

y

=

142

, so  

y

=

2

Hence,

x

−

9

⋅

2

=

−

20

or  

x

−

18

=

−

20

, so  

x

=

−

2

Thus,

7

⋅

(

−

2

)

+

5

⋅

2

+

z

=

0

or  

z

−

4

=

0

, so  

z

=

4Explanation:

Adding third equation to first one,

7

x

+

5

y

+

z

+

x

−

6

y

−

z

=

0

−

18

or  

8

x

−

y

=

−

18

.  

(

1

)

Adding 2 times of third one to second one,

−

x

+

3

y

+

2

z

+

2

⋅

(

x

−

6

y

−

z

)

=

16

−

2

⋅

18

or  

x

−

9

y

=

−

20

(

2

)

Substracting 8 times of  

(

2

)

from  

(

1

)

,

8

x

−

y

−

8

⋅

(

x

−

9

y

)

=

−

18

−

8

⋅

(

−

20

)

71

y

=

142

, so  

y

=

2

Hence,

x

−

9

⋅

2

=

−

20

or  

x

−

18

=

−

20

, so  

x

=

−

2

Thus,

7

⋅

(

−

2

)

+

5

⋅

2

+

z

=

0

or  

z

−

4

=

0

, so  

z

=

4planation:

Answer:

9p^2-12p+4

Step-by-step explanation:

Apply perfect square formula;

a=3p , b=2

Apply perfect square formula;

(3p)^2-2*3p*2+2^2

Simplify:

=9p^2-12p+4

Answer:

He said " How much wrapping paper will Solomon need to cover all 7 boxes" so its probably 7-10 i think

Step-by-step explanation:

haha 900 is too much :) good try

Answer: the question is asking you to basically plot the point so you should plot the point by using desmos graphing calculator, and you should get the answer.

Step-by-step explanation:

Answer:

Put the equation into the form ax 2 + bx = – c.

Make sure that a = 1 (if a ≠ 1, multiply through the equation by. before proceeding).

Using the value of b from this new equation, add. ...

Find the square root of both sides of the equation.

Solve the resulting equation.

Answer:

x<20

Step-by-step explanation:

Building linear functions for each situation, the inequality is:

[tex]18x + 100 < 15x + 160[/tex]

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

Choice A:

Thus, the cost of inviting x guests is given by:

[tex]C_a(x) = 18x + 100[/tex]

Choice B:

Thus, the cost of inviting x guests is given by:

[tex]C_b(x) = 15x + 160[/tex]

A cost less than B, thus, the inequality is:

[tex]C_a(x) < C_b(x)[/tex]

[tex]18x + 100 < 15x + 160[/tex]

A similar problem is given at https://brainly.com/question/13270950

Answer: The walking path around it.

Step-by-step explanation:

Remember the Pythagorean's theorem, for a triangle rectangle with catheti A and B, and with hypotenuse H, we have:

A^2 + B^2 = H^2

or

H = √(A^2 + B^2)

Here, A + B is the total distance for the path, while the hypotenuse is the distance for the bridge

Here we can see that:

A = 1170 ft

B = 520 ft

Then:

H = √( (520 ft)^2 + (1170 ft)^2) = 1280.4 ft

Now, let's compute the costs.

For the bridge, we know that each foot costs $11, then for 1280.4 ft the cost is:

Cost of the bridge = (1280.4)*$11 = $14,084.4

And for the walking path, the cost is $6 per foot, then the total cost of the path is:

Cost of the path = (520 ft + 1170 ft)*$6 = $10,140

We know that the bridge is preferred if it is within the range of $1500 for the path's cost.

This range is:

($10,140 - $1,500, $10,140 + $1,500) = ($8,640, $11,640)

Here we can see that the cost of the bridge does not belong to this range, (is higher) so the option we should recommend is the walking path around.

Answer:

30 feet

Step-by-step explanation:

There a 3 ft in a yard

If there's 10 yards

then multiply 10 x 3 to get 30 feet

Answer:

Step-by-step explanation:

sin(D) = [tex]\frac{\text{Opposite side}}{\text{Hypotenuse}}[/tex]

         = [tex]\frac{7}{14}[/tex]

         = [tex]\frac{1}{2}[/tex]

         = 0.5

cos(D) = [tex]\frac{\text{Adjacent side}}{\text{Hypotenuse}}[/tex]

          = [tex]\frac{12.124}{14}[/tex]

          = 0.866

tanD = [tex]\frac{\text{Opposite side}}{\text{Adjacent side}}[/tex]

        = [tex]\frac{7}{12.124}[/tex]

        = 0.577

Since, sinE = cosD

Therefore, sinE = 0.866

Since, cosE = sinD

Therefore, cosE = 0.5

Since, tanE = [tex]\frac{\text{Opposite side}}{\text{Adjacent side}}[/tex]

                   = [tex]\frac{12.124}{7}[/tex]

                   = 1.732

Answer:

The best deal is the 18 ounce box

Answer:

the 18 ounce box is cheapest per ounce

Step-by-step explanation:

1. .28per ounce

2. .31per ounce

3. . 26per ounce

4. .25per ounce

Answer:

The answer is 22.

Step-by-step explanation:

dklecmmkek

Answer:

If a is positive and b is greater than 1 , then it is exponential growth. If a is positive and b is less than 1 but greater than 0 , then it is exponential decay

Step-by-step explanation:

small baby answer

Answer:

125

Step-by-step explanation:

131.25   105

of      100

Cross multiply process

131.25x100=108x?

131.25x100=13125

13125=108?

13125/108=?

125=?

:)

Answer:

3<-3 FALSE

0>-333 True

-13>-10 false

-10>-13 true

Answer:

-10 > -13

Step-by-step explanation:

On a number line (I wanna see if this works lol)

|___|___|___|___|___|___|

-15  -14   -13   -12   -11   -10   -9

Answer:

12.75feet (12¾)

Step-by-step explanation:

7t+1+5t+8=162feet

12t+9=162feet

12t=162-9

=153

t = 153÷9

=12.75feet (12¾feet)

Answer:

J

Step-by-step explanation:

check by multiplying each x value by 4

Answer:

D (J)

Step-by-step explanation:

y=4x is basically multiplying the x value by 4; 10*4 is 40, 20*4 is 80, and so on.

Answer:

994.88 in2

Step-by-step explanation:

Use the surface area formula SA = 4(pi)(r2) which results in SA = 4(3.14)((8.9)2) = 994.88 square inches. Because the bowl represents half a sphere, it is necessary to divide that answer by 2 to get the surface of the bowl.

If radius of a salad bowl is 8.9 inches then the surface area of the bowl is 497.44 square inches, option c is correct.

a three dimensional shape can be defined as a solid figure or an object or shape that has three dimensions—length, width, and height.

Given that  radius of a salad bowl is 8.9 inches.

We have to find the  surface area of the bowl

The surface area of a half-sphere is given by the formula:

SA = 2πr²

where r is the radius of the sphere.

In this case, the radius of the salad bowl is 8.9 inches.

Substituting this value into the formula, we get:

SA = 2 x 3.14 x (8.9)²

SA = 497.44 square inches

Surface area =497.44 square inches

Hence, if radius of a salad bowl is 8.9 inches then the surface area of the bowl is 497.44 square inches, option c is correct.

To learn more on Three dimensional figure click:

https://brainly.com/question/2400003

#SPJ3

Answer:

isn't it that a parallelogram has 6 sides and these are 4?????????............