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andrew-mc [135]
3 years ago
14

7n -4 =31 solve for n

Mathematics
2 answers:
konstantin123 [22]3 years ago
7 0

Answer:

Step-by-step explanation:

Anni [7]3 years ago
5 0
Add 4 on both sides of equation

7n = 35

Divide 7 on both sides of equation

N = 5
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What conclusion can you make from the information below?
erastova [34]

Answer:

B. Louis drives a Chevrolet

Step-by-step explanation:

because karen and jack doesnt drive a Chevrolet

3 0
3 years ago
Cos B =<br>tan B =<br>sin B =​
Oduvanchick [21]

The three main trig functions are sine (written as sin), cosine (written as cos), and tangent (written as tan).

Sine of an angle = the length of the side opposite (aka across) the angle / the length of the hypotenuse

Cosine of an angle = the length of the side adjacent (aka the side next to which isn't the hypotenuse) to the angle / the length of the hypotenuse

Tangent of an angle = the length of the side opposite of the angle / the length of the side adjacent to the angle.

The acronym to remember this is SOHCAHTOA

SOH | CAH | TOA

SOH means sin(x) = opposite/hypotenuse

CAH means cos(x) = adjacent/hypotenuse

TOA means tan(x)= opposite/adjacent

cosB = length of adjacent side/length of hypotenuse = 7/25

tanB = length of opposite/length of adjacent = 24/7

sinB = length of opposite/length of hypotenuse = 24/25

8 0
3 years ago
What is 345 2/5 x 14 3/5
defon

Answer:

Exact Form:

126071/25

Decimal Form:

5042.84

Mixed Number Form:

5042 21/25

<u><em>I hope that helped at all.</em></u>

5 0
3 years ago
Read 2 more answers
Subtract (x^2+3x-4) -(4x-2x^2-3)
Feliz [49]

Answer:

3 x^2 - x + -1

Step-by-step explanation:

Simplify the following:

-(4 x - 2 x^2 - 3) + x^2 + 3 x - 4

Factor -1 out of -2 x^2 + 4 x - 3:

--(2 x^2 - 4 x + 3) + x^2 + 3 x - 4

(-1)^2 = 1:

2 x^2 - 4 x + 3 + x^2 + 3 x - 4

Grouping like terms, 2 x^2 + x^2 + 3 x - 4 x - 4 + 3 = (x^2 + 2 x^2) + (3 x - 4 x) + (-4 + 3):

(x^2 + 2 x^2) + (3 x - 4 x) + (-4 + 3)

x^2 + 2 x^2 = 3 x^2:

3 x^2 + (3 x - 4 x) + (-4 + 3)

3 x - 4 x = -x:

3 x^2 + -x + (-4 + 3)

3 - 4 = -1:

Answer: 3 x^2 - x + -1

4 0
4 years ago
Chaz bought 4 baseball cards for $2 each and 8 baseball cards for $3 each. Simplify the expression to find the amount Chaz spent
Murljashka [212]
The answer you will get when you multiple and add is 32

8 0
3 years ago
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