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kondaur [170]
3 years ago
10

9x-(3x-3)=21

Mathematics
1 answer:
Shkiper50 [21]3 years ago
7 0
9x-(3x-3)=21 is x = 3 when simplified.
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A triangle has two equal angles and a smaller angle which measures 26 degrees. What is the measure of one of the larger angles.
ankoles [38]
180 = 2x + 26
-26          -26
154 = 2x
÷2      ÷2
77 = x
One of the sides is 77
3 0
3 years ago
Read 2 more answers
Integrate with respect to x <br><br> 1/√(1-2x)
Ilia_Sergeevich [38]

Answer:

-√(1 - 2x) + C

Step-by-step explanation:

1/√(1-2x)

We want to integrate it. Thus;

∫1/√(1 - 2x) dx

Let u = 1 - 2x

Thus;

du/dx = -2

Thus, dx = -½du

Thus,we now have;

-½∫1/√(u) du

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-½∫1/√(u) du = -√(u) + C

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3 0
3 years ago
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QveST [7]

Answer:

160

Step-by-step explanation:

If there were only 2 options, all the people who didn't pick one chose the other one.

So if 25% of the people voted for the aquarium the remaing 75% voted for the zoo.

Since three times as many people voted for the zoo, we can see that 120/3=40, so 40 people chose the aquarium.

To find the total number of students, we add 120 and 40 to get <u>160</u>

3 0
2 years ago
For each of the finite geometric series given below, indicate the number of terms in the sum and find the sum. For the value of
chubhunter [2.5K]

Answer:

a)Number of terms =15

Value of sum =

(b)Number of terms =6

Value of sum  

Step-by-step explanation:

A.

nth term,

a=5, r=

Simce the bases are the same, the powers are equal.

n-1=14

n=14+1=15

Number of terms =

15

Value of sum =

B.

nth term,

a=,

Simce the bases are the same, the powers are equal.

4+n-1=9

n=9+1-4=6

Number of terms =

6

Value of sum  

NOTE: For the sum, we desire an expression that gives the exact value, rather than entering an approximation

4 0
3 years ago
Geometry help, please!!!
AleksAgata [21]

Answer:

1: Given

2: Verical angles are always congruent

3: Angle Angle theorem

4 0
3 years ago
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