i need this ASAP!!!
please helppppp

Answer:

j = 6

Step-by-step explanation:

-8j + 74 = 3j + 8

-8j - 3j = 8 - 74

-11j = -66

j = 6

Answer:

n=3

Step-by-step explanation:

3.4(107)=2(104)(1.7(10n))

n=3

Answer:

5....I guess...is it a brain teaser?

Answer: C (-7/18)

Step-by-step explanation: you flip the denominator and numerator and keep the negative

9514 1404 393

Answer:

  (C)  Step 1: 15x − 20 = 1; Step 2: 15x = 21

Step-by-step explanation:

The first step is to eliminate the parentheses, using the distributive property.

  5(3x − 4) = 1

  15x -20 = 1

The second step is to add 20 to both sides of the equation.

  15x = 21

This pair of steps is shown in the 3rd choice.

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Comment on the answers

The distributive property seems to be applied incorrectly a lot of the time. Here, you can choose the correct answer by looking at the result of properly applying the distributive property: 5(3x-4) = 15x-20. Only the correct choice has this as the first step.

Answer:

x = 11/3

Step-by-step explanation:

x2 + x = 11

Combine like terms

3x = 11

Divide both sides by 3

x = 11/3

Answer:

27/8

Step-by-step explanation:

first you would convert -.5 to -1/2 and add everything up by getting the same denominator

Answer:

3.375

Step-by-step explanation:First convert the 2 1/4 and the 1 5/8

then you just add it with the 0.5 or just use a calculator  

2 1/4 = 9/4

1 5/8= 13/8

okay now do this ---> 0.5 + 9/4 +13/8 =3.375

Answer:

86

Step-by-step explanation:

Answer:

[tex]\huge\boxed{A-B=\left[\begin{array}{ccc}-11&1&-15\\-7&8&8\\0&-7&1\end{array}\right] }[/tex]

Step-by-step explanation:

[tex]A-B=\left[\begin{array}{ccc}-2&-8&-9\\-5&7&5\\-4&-8&7\end{array}\right] -\left[\begin{array}{ccc}9&-9&6\\2&-1&-3\\-4&-1&6\end{array}\right] \\\\=\left[\begin{array}{ccc}-2-9&-8-(-9)&-9-6\\-5-2&7-(-1)&5-(-3)\\-4-(-4)&-8-(-1)&7-6\end{array}\right] \\\\=\left[\begin{array}{ccc}-11&1&-15\\-7&8&8\\0&-7&1\end{array}\right][/tex]

Answer:

130 degrees

Step-by-step explanation:

All triangles equal 180 degrees. subtract that by the known sides. you get 130

= √41² - 9²

= √1.681 - 81

= √1.600

= 40

Answer:

37.7

Step-by-step explanation:

37.7+37.7=75.4

Answer:

55

Step-by-step explanation:

2x+5 x-5 combine these to get 3x

then you would divide 180 by 3

so u would get 60 = x

60-5 =55

I thank it's 55 It wont let me post it because its too short

Answer:

negative

Step-by-step explanation:

if they have the same signs then they are positive if they have different signs then they will be negative

Answer:

25%

Step-by-step explanation:

1,000x4 would be 4 thousand, so the answer would be 1/4. 1/4 as a percent is 25%.

Answer:8.06

Step-by-step explanation:

4 x 4= 16 7 x 7 = 49

49+16=65

square root of 65 =8.06

Answer:

[tex] \sqrt{65} [/tex]

Step-by-step explanation:

To find the hypotenuese of a right angle you use the pythagreon theroem.

[tex] {a}^{2} + {b}^{2} = {c}^{2} [/tex]

a and b are the height and base, while c is the hypotenuese. simply insert the values in the equation and find the variable.

[tex] {4}^{2} + {7}^{2} = {c}^{2} \\ 16 + 49 = {c}^{2} \\ 65 = {c}^{2} \\ \sqrt{65} = c[/tex]

The radical form answer is above, otherwise it would be a decimal.

Answer:

x=54

Hope this helps!

Answer:

x = 54

Step-by-step explanation:

(x + 16) = 70

     -16    -16

        x = 54

Answer:

-7

Step-by-step explanation:

-123-(6x4=24)=-147      -147 divided by (4x5k+1k=21k)=-7

Answer: y=-6=-3(x-4)

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

1km=1000m

4500 divided by 1000 is 4.5

Answer: 1: slope = 3, y=01

2=slope=5 y=0,-3

Step-by-step explanation:

Answer:

yeah sure i got you, whats the question?

Step-by-step explanation:

Answer:

yes

Step-by-step explanation:

i can because i am super smart

Answer:

2x + 5x +4x (since none of them have exponents, they're all like terms. you add them as if the x wasn't even there, it just trails along.)

11x is your answer :)

Step-by-step explanation:

Answer: [tex]11x[/tex]

Step-by-step explanation:

Collect Like Terms:

[tex]2x+5x+4x[/tex]

[tex](2+5+4)x[/tex]

Calculate the Sum

[tex](11)x[/tex]

Please mark brainliest if this helped you :)

Answer: 6 pounds

Step-by-step explanation:

Answer:

wrong 4 x 6 = 24 so 24 > 10        and 4 x 6 = 24 so 24  <  30

Step-by-step explanation:

hope it help ;)

Answer:

? = 5 cm

Step-by-step explanation:

∠ E and ∠ D are congruent, thus the triangle is isosceles and the 2 sides will be congruent, that is

? = 5 cm

Answer:

7/100 or Decimal: 0.07

Step-by-step explanation:

The product of 70 multiplied by 10 to the power of -3 is 0.07

Given that product of 70 multiplied by [tex]10^{-3}[/tex].

Scientific notation is a way to express numbers that are very large or very small in a more concise and convenient form. It is commonly used in scientific and mathematical calculations, as well as in representing values in various fields such as astronomy, physics, and chemistry.

To solve this, we can use the concept of scientific notation. When a number is expressed in scientific notation, the exponent indicates the power of 10 by which the number should be multiplied.

In this case,  [tex]10^{-3}[/tex] means move the decimal point three places to the left.

Starting with 70, move the decimal point three places to the left to obtain 0.07. Therefore, the solution to 70 multiplied by [tex]10^{-3}[/tex] is 0.07.

Therefore, the product of 70 multiplied by  [tex]10^{-3}[/tex] is 0.07.

Learn more about scientific notation click here:

https://brainly.com/question/19625319

#SPJ6

Answer:

21

Step-by-step explanation:

His number is 21

21 - 12 = 9

9 times -2 = -18

Hope this helps!!

Answer:

21

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