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Dahasolnce [82]
3 years ago
7

I NEED HELP .........................

Mathematics
1 answer:
Setler79 [48]3 years ago
4 0
Go on tell me what you need
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Find the sum of the first 39 terms of the following series, to the nearest integer<br> 7,15,23,...
sertanlavr [38]

Answer:

6201

Step-by-step explanation:

formula for series in AP

where n is the nth term and a is first term and d is difference between two terms in series sum = \frac{n}{2} (2a \:  + (n - 1)d)

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3 years ago
How do you find the dimensions of an object?
Kazeer [188]
The dimension of an object is a topological measure of the size of its covering properties. Roughly speaking, it is the number of coordinates needed to specify a point on the object. For example, a rectangle is two-dimensional, while a cube is three-dimensional. The dimension of an object is sometimes also called its "dimensionality."
3 0
4 years ago
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Are the triangles congruent? If so, then justify your answer.
Triss [41]

Answer:

sss

hope it helps have a nice day

3 0
3 years ago
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I only need help with 15,16,17,18 please help me
blagie [28]
Okay, so to find like denominators you need to find a number that both denominators go into. For 15, they both go into 45. 9 goes in 5 times and 15 goes in 3 times. So multiply their numerators by 5 and 3. It would be 25/45 for 5/9 and it would be 12/45 for 4/15. Do the same for 16 and 17, for 16 they both go into 42 and for 17 they both go into 42.
7 0
4 years ago
Read 2 more answers
Can someone help out ??
kupik [55]

Answer:

120 cubes

Step-by-step explanation:

Find the volume of the prism and then divide it by the volume of one cube (which is 1/27 cm):

V = length*width*height = (5/3 cm)(4/3 cm)(2 cm) = 40/9 cm³.

Dividing this result by 1/27 yields

40       27         40*3    

------ * ------ = -------------- = 120

  9        1               1

120 cubes (answer)

7 0
3 years ago
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