I need help plzzzzz!!

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:

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:

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: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:

86

Step-by-step explanation:

Answer: C (-7/18)

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

Answer:

x=54

Hope this helps!

Answer:

x = 54

Step-by-step explanation:

(x + 16) = 70

     -16    -16

        x = 54

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:

The answer is:

C. sin A = 48/50

Step-by-step explanation:

I already did this math work, and i got a 100 (A+) So i hope this 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:

x+3y=-1

Step-by-step explanation:

y=3x-2 so m=3 old slope

the new slope must be -1/3 (opposite reciprocal of the old slope).

y-y0=m*(x-x0)

y-2=-1/3*(x-(-7))

y-2=-1/3x-1/3*7

y-2=-1/3x-7/3

3y-6=-x-7

The standard form for linear equations in two variables is Ax+By=C.

x+3y=6-7

x+3y=-1

Answer: 1: slope = 3, y=01

2=slope=5 y=0,-3

Step-by-step explanation:

Answer: 6 pounds

Step-by-step explanation:

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:

A

Step-by-step explanation:

1km=1000m

4500 divided by 1000 is 4.5

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

Step-by-step explanation:

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.

_____

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:

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:

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

Step-by-step explanation:

hope it help ;)

Answer:

-7

Step-by-step explanation:

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

Answer:

37.7

Step-by-step explanation:

37.7+37.7=75.4

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:

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

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:

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