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fenix001 [56]
3 years ago
13

The first five terms of a sequence are 5, 4, 3, 2, 1. What is the explicit formula for the sequence?

Mathematics
1 answer:
kogti [31]3 years ago
8 0

Answer:

6-n

Step-by-step explanation:

The first term, a is 5 and the common difference is - 1.

So an=a+(n-1)d, an=5+(n-1)(-1)=5-n+1=6-n. Answered by Gauthmath

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Please help me please
olga nikolaevna [1]

Answer:

BF = 30

Step-by-step explanation:

Since B and F are midpoints then BF is parallel to CE and half it's size

BF = 0.5 × CE = 0.5 × 60 = 30

3 0
3 years ago
Can someone give me the answer? I’m really confused
Damm [24]

1 pound of rice costs $3.45

1.2 pounds of rice costs x

Set up the proportion

1 / 1.2 = 3.45 / x               Cross Multiply

x = 1.2 * 3.45                   Combine

x = $4.14                          Answer

7 0
2 years ago
I don’t know how to do this
Jet001 [13]

Use proportions because we know that the triangles are similar.

\frac{20}{28}=\frac{5}{x}

Cross multiply.

20x=28×5

x=7

answer: 7

6 0
3 years ago
Please solve for me it's urgent. A rectangle has 10 and 6cm each. find the area of a square with the same perimeter as that of t
elena55 [62]

Answer:

64 cm²

Step-by-step explanation:

Firstly,let us lay down the clues;

So, we have been given the Length and Width of the rectangle.

Rectangle;

<em>Length</em><em>=</em><em> </em><em>10</em><em> </em><em>cm</em>

<em>Width</em><em>=</em><em>6</em><em> </em><em>cm</em>

We know that

Perimeter= 2L + 2W

Perimeter= 10+10+6+6

Perimeter =32 cm

In the questionnaire, it is mentioned that a square has the same perimeter as the rectangle. That means, the perimeter of the square is similar to the one of the rectangle which is 32 cm.

So,

Perimeter of square =32 cm

Length of one side of the square =32÷4

=8 cm

Area= L × W

Area= 8 cm× 8 cm

Area= 64 cm²

Hope it helps.

5 0
3 years ago
8-4 trigonometry (part b) hw (2nd part)
marishachu [46]

Answer:

82+25=107 yan po ang answer

7 0
2 years ago
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