Solve the equation 8x = - 16.

Is it possible to solve the equation using multiplication? Explain your reasoning

Answer:

1442.9 = 1.4429 x 10 ^1000

Step-by-step explanation:

PEMDAS

4.3 × 107 + 9.1 × 108 = _____ x 10 ^----

(4.3 × 107) + (9.1 × 108) = _____ x 10 ^---

460.1 + 982.8 = _____ x 10 ^----

1442.9 = 1.4429 x 10 ^1000

This is the right answer, I think you may have forgotten to put the ^.  

Answer:

9.53 × 108

Step-by-step explanation:

Make sure both numbers have the same exponent

4.3 × 107 = 0.43 × 108

Then add the coefficients

0.43 × 108 + 9.1 × 108 = 9.53 × 108

Answer:

Widgets: 12

Wombats: 15

Step-by-step explanation:

Let x represent widgets

y represent wombats

Set up the equations

(1) x + y = 27

(2) 0.75x + 1.25y = 27.75

Solve equation (1), x + y = 27 for x

x = 27 - y

Substitute 27- y for x into equation (2)

0.75(27 - y) + 1.25y = 27.75

0.5y + 20.25 = 27.75

0.5y = 7.5

y = 15

Substitute 15 for y into equation (2)

x = 27 - 15

= 12

Answer:

The figure should be 56 units squared.

Step-by-step explanation:

The long side is 14 units long (6+6+2) and the short side is 4 units long, so 14 multiplied by 4 is 56.

Answer:

122 degrees

Step-by-step explanation:

180-148=32

90-32=58

180-58=122

Answer:

840

Step-by-step explanation:

Given the date:

Birth date = 12/24/2002

Number of digits = 8 = 8! = (8*7*6*5*4*3*2*1) = 40320

Repeated digits :

digit 2 = 4 times = 4! = (4 * 3 *2 * 1) = 24

digit 0 = 2 times = 2! = 2*1 = 2

Therefore the number of 8 digit codes that can be formed is :

8! / (4! * 2!)

40320 / (24 * 2)

40320 / 48

= 840

Hence, 840 8 digit codes can be formed

Answer:

D: x^(6) + 27y^(9)

Step-by-step explanation:

A) 3x^(9) - 64y^(3)

The first term is raised to the power of 9 and has a coefficient which cannot also be expressed as a cube while the second term is raised to the power of 3 but has a coefficient that can be expressed as a cube. Thus the entire equation cannot be simplified to cubes as the first term cannot be expressed a cube.

B) 15x^(21) - 64y^(3)

Similar to the reason given in A above, the first term cannot be expressed as a cube.

C) 27x^(15) - 9y^(3)

In this one, the first term can be expressed as a cube while the second one cannot be expressed as a cube because 9 cannot be expressed as a cube.

D) x^(6) + 27y^(9)

This can be expressed as;

(x²)³ - (-3y³)³

This is therefore a difference of cubes

Answer:

x=6

Step-by-step explanation:

12x + 3=11x+9 corresponding angle

12x-11x=9-3

x=6

Answer:

x = 6

Step-by-step explanation:

Give him Brainliest PLZ

"masamstha31"

Answer:

2 : 1

Step-by-step explanation:

Answer:

2:1

Step-by-step explanation:

well 8th graders are 18 and 6th graders are 9

so 18:9

Simplify

2:1

Since its in the order of 8th graders:6th graders

Answer:

0.4

Step-by-step explanation:

if u reduce that fraction it would be 4/10 which is 0.4 in decimal form

Answer:

The pumpkin is not in the air

Step-by-step explanation:

The equation is

[tex]g(t)=2+23.7t-4.9t^2[/tex]

Let us find when the pumpkin will reach the ground

[tex]0=2+23.7t-4.9t^2\\\Rightarrow -49t^2+237t+20=0\\\Rightarrow t=\frac{-237\pm \sqrt{237^2-4\left(-49\right)\times 20}}{2\left(-49\right)}\\\Rightarrow t=-0.08,4.91[/tex]

So, the pumpkin will reach the ground at 4.91 seconds. Hence, at 8 seconds the pumpkin will reach the ground.

At [tex]t=8\ \text{s}[/tex]

[tex]g(8)=2+23.7\times 8-4.9\times 8^2\\\Rightarrow g(8)=-122\ \text{m}[/tex]

The height of the pumpkin is negative 122 m. This means it is lower than the ground. So, the pumpkin is not in the air 8 seconds later.

Reduced by 20% means it is on sale for 80% of the original price ( 100% - 20% = 80%)

Multiply the original price by 80%

36 x 0.8 = 28.80

The sale price is £28.80

Answer:

4y−12

Step-by-step explanation:

4(y−3)

Use the distributive property to multiply 4 by y−3.

4y−12

Answer:

b,e

Step-by-step explanation:

40*50=2000 sqft vegetables

40*30/2=600 sqft flowers

Answer:

28 years

Step-by-step explanation:

The difference between 30,000 and 4,800 is 25200. So we divide this number by 900 to find out how many years it will take for the truck to depreciate to this value

Answer:

B

Step-by-step explanation:

A has 2 it crosses the x axis 2x

B Has 1.

C has 2

D has none since it never touched the x axis

Option B is correct.

If the graph of quadratic function crosses x - axis at two points then that function has two zeros.

Therefore, Option B graph represent a quadratic function that has only one zero.

Learn more about the graph of quadratic function here:

https://brainly.com/question/10606041

Answer:

Area is 585

Step-by-step explanation:

Using the area formula A = [tex]h_{b}[/tex] b / 2 you can substitute the given values into it to find the area of the triangle.

Given Values:

- Base: 45

- Height: 26

So,

26 x 45 / 2

=> 1170 / 2

=> 585

Area: 585

hope this helps and is right. p.s. i really need brainliest :)

Answer:

You cannot solve this

Step-by-step explanation:

you need at least one value given like x=something or y=something so you can plug it in

if you meant solve for x, then x= -4y+32

Answer:

x=11

mMN=65

mNP=115

mNQP=245

Step-by-step explanation:

10x-45=6x-1

4x=44

x=11

mMN 6(11)-1=65/ 10(11)-45=65

mNP 180-65=115

mNQP 65+115+65=245

Answer:

107

Step-by-step explanation:

Answer:

S.A. = 1,017.36

Step-by-step explanation:

S.A. = [tex]\pi r^{2} + \pi rl[/tex]

12 x 12 x 3.14 = 452.16

3.14 x 12 x 15 = 565.2

565.2 + 452.16 = 1,017.36

Answer:

Step-by-step explanation:

It would be the middle of the 6 and 5 because you go -4 plus to to the left and in half would be in the middle of that.

Answer:

65

Step-by-step explanation:

Do the opposite of what the question gives you.

Sara has the number 11. She divided by 7, so you would multiply by 7:

11 x 7 = 77

Next, Sara added 12, so you will subtract by 12:

77 - 12 = 65

65 is the number Sara was thinking of.

~

Answer:

1/5

Step-by-step explanation:

umm what's (3/5)/3

1/5

Answer:

Its C

Step-by-step explanation:

Answer:

90°

Step-by-step explanation:

The lines are perpendicular meaning that the bottom angle is the same as the top.

Answer:

A (first one)

Step-by-step explanation:

Supplementary- the angles add up to 180 degrees.

After viewing the angles, you can see the angles add up to 180.