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Luden [163]
3 years ago
15

On a number line, C is at -6 and Dis at 24. What is the coordinate of F Which is

Mathematics
1 answer:
stealth61 [152]3 years ago
8 0
Chyhghchhhhggcggggggccccccc
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Find the sum of this infinite geometric series where a1=0.3 and r=0.55
Lisa [10]
Hello, Marymack!


We know that in a geometric sequence defined by \mathsf{a_1} and \mathsf{r} , the sum can be calculated the following way:

\mathsf{S_n = \dfrac{a_1}{1-r}}\\ \\ \\ \\ \mathsf{S_n = \dfrac{0.3}{1-0.55}}\\ \\ \\ \mathsf{S_n = \dfrac{0.3}{0.45}}\\ \\ \\ \boxed{\mathsf{S_n = \dfrac{2}{3}=0.666...}}
3 0
3 years ago
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The cost of a pen is 3 times the cost of a pencil and cost of a
valentinak56 [21]

Answer:

1 Pen cost $2.25

Step-by-step explanation:

Assume:

Cost of Pen = a

Cost of pencil = b

Cost of notebook = c

a = 3b   -------------------(1)

c = 4a   -------------------(2)

2a + 6b + c = $18 -----(3)

From equation (1), b = a ÷ 3 ---------(4)

Substitute equations (2) and (4) in equation (3)

2a + 6 * (a ÷ 3) + 4a = $18

2a + 2a + 4a = $18

8a = $18

a = $2.25

Therefore, 1 Pen cost $2.25

6 0
3 years ago
15 POINTS PLEASE HELP!!!
Elan Coil [88]

Answer:

S

Step-by-step explanation:

6 0
2 years ago
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Question 23) Triangle PQR Triangle XYZ<br> PQ = 3a + 4 and XY = 5a - 12. Find a and PQ.
uysha [10]
A=8 and PQ=28.

the way I solved the problem is attached. hope this helped.

4 0
3 years ago
The ratio of the measure of the vertex angle is to the base angle of an isosceles triangle is 8:5. Find the measure do the verte
jok3333 [9.3K]
8x + 5x + 5x = 180
18x = 180
x = 10

<span>the measure of the vertex angle = 8x = 8*10 = 80</span>°
7 0
3 years ago
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