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STALIN [3.7K]
3 years ago
8

Can anyone help ( math, geometry)

Mathematics
1 answer:
denpristay [2]3 years ago
7 0

Answer:

x=18

Step-by-step explanation:

(3x-9)= 45 degrees because the angle you are solving for is half of a right angle (90 divided by 2 = 45)

so you take 45 and add 9 to it. That equals 54. To get the value of x, you divide 54 by 3 and you get 18.

hope this helps!

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The temperature of a city at sunset was -1 overnight,the temperature decreased by 11 what was the lowest temperature overnight i
docker41 [41]

Answer:

-12

Step-by-step explanation:

-1 - 11 = -12

4 0
3 years ago
X^3+8 divided by x+2
Klio2033 [76]

Answer: x^2+4

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
-6x-14y=-20<br> -3x-7y=-10
Alex Ar [27]
ANSWER:

x = 10 / 3

y = 0

STEP-BY-STEP EXPLANATION:

We will be using simultaneous equations to solve this problem. Let's first establish the two equations which we will be using.

Equation No. 1 -

- 6x - 14y = - 20

Equation No. 2 -

- 3x - 7y = - 10

First, we will make ( x ) the subject in the first equation and simplify accordingly.

Equation No. 1 -

- 6x - 14y = - 20

- 6x = - 20 + 14y

x = ( - 20 + 14y ) / - 6

x = ( - 10 + 7y ) / - 3

From this, we will make ( y ) the subject in the second equation and substitute the value of ( x ) from the first equation into the second equation to solve for ( y ) accordingly.

Equation No. 2 -

- 3x - 7y = - 10

- 7y = - 10 + 3x

- 7y = - 10 + 3 [ ( - 10 + 7y ) / - 3 ]

- 7y = - 10 + [ ( - 30 + 21y ) / - 3 ]

- 7y = - 10 + ( 10 - 7y )

- 7y = - 7y

- 7y + 7y = 0

0y = 0

y = 0

Using this, we will substitute the value of ( y ) from the second equation into the first equation to solve for ( x ) accordingly.

x = ( - 10 + 7y ) / - 3

x = [ - 10 + 7 ( 0 ) ] / - 3

x = [ - 10 + 0 ] / - 3

x = - 10 / - 3

x = 10 / 3
6 0
3 years ago
Suppose the man in the St. Ives poem has x wives, each wife has x sacks, each sack has x cats, and each cat has x kits. Write an
marishachu [46]

Answer: x+x^2+x^3+x^4

Step-by-step explanation:

As per given,

Number of wives = x

Number of sacks = x (\text{Number of wives} )= x\times x = x^2

Number of cats = x(\text{Number of sack})= x \times x^2=x^3

Number of kits = x(\text{Number of cats} )=x\times x^3=x^4

Now , the total number of kits, cats, sacks, and wives going to St. Ives = x+x^2+x^3+x^4

Hence, the required ex[pression:  x+x^2+x^3+x^4

5 0
3 years ago
If f(x) = x2 – 1, and<br> g(x) = x + 2, then<br> g(f(x)) = [ ? ]x2 +[ ]x +[
aev [14]
Gf(x)
=g[f(x)]
=g[x2-1]
=x2-1+2

3 0
3 years ago
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