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joja [24]
3 years ago
6

If T (n) = 2 -7n, what is the first term?

Mathematics
1 answer:
marin [14]3 years ago
6 0
T(1)=2-7\cdot1=2-7=-5
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I need help with this
Aliun [14]

-55+13= -42

94i -12i = 82i

answer = -42+82i

4 0
3 years ago
Someone pls help me
Nat2105 [25]
The answer should be AC+BC

We can answer this by applying the rule called "Greater angle, greater side". This is where in any triangle, the opposite side of the larger angle is also longer.

So in this question, first we have to find the largest 2 angles, which is ∠ABC and ∠BAC with measures of 120° and 35° respectively. Therefore, from the diagram, the opposite sides of the angles are AC and BC. 

Therefore, the answer should be AC+BC.
7 0
3 years ago
The formula for the area of a circle is A=pir^2. Find the area of a circle with a diameter of 6.4 centimeters. Use a calculator
Advocard [28]
A=pi(3.2)^2= 32.1699087728
A=32cm^2
3 0
4 years ago
Help asap please i don't know the answer lol
Sveta_85 [38]

Answer:

H

Step-by-step explanation:

The parallel line BC divides the sides AD and AE in proportion, that is

\frac{AB}{BD} = \frac{AC}{CE}, that is

\frac{2}{3} = \frac{AC}{4} ( cross- multiply )

3AC = 8 ( divide both sides by 3 )

AC = \frac{8}{3} = 2 \frac{2}{3}, hence

AE = AC + CE

     = 2 \frac{2}{3} + 4 = 6 \frac{2}{3} → H

6 0
4 years ago
What's X?<br> Please help me and explain
ANTONII [103]

Answer:

60 degree

Step-by-step explanation:

E,A,D is a straight line .

Straight line=180 degree

100+20=120 -180=60

therefore X=60

8 0
3 years ago
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