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mojhsa [17]
3 years ago
9

Find S30 HELPP. 10 points! An arithmetic sequence has Si = -7 and S3 = 0.

Mathematics
2 answers:
Diano4ka-milaya [45]3 years ago
7 0

Answer:

6

Step-by-step explanation:

Cerrena [4.2K]3 years ago
7 0

Answer:2835

Step-by-step explanation:

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A postcard has an area of 24 square inches. Two enlargements of the postcard have areas of 54 square inches and 96 square inches
Alex777 [14]

Answer:

original is 4 & 6.

for 54 sq inch= 6 & 9 and for 96 sq inch=8 & 12

Step-by-step explanation:

Given: The length is 1.5 times the width.

so the length is, l = 1.5w ----(a)

lw = 24  =1.5w(w)

lw = 54= 1.5w(w)

lw = 96 =1.5w(w)

Further simplifying it,

1.5w^{2}=24

1.5w^{2}=54

1.5w^{2}=96

so,

w^{2} = \frac{24}{1.5}=16

w^{2}= \frac{54}{1.5} =36

w^{2}= \frac{96}{1.5} =64

taking the square root, we get:

w = 4

w = 6

w = 8

By putting the above values in eq (a), we can find their corresponding lengths:

l = 1.5(4) = 6

l = 1.5(6) = 9

l = 1.5(8) = 12

So a few lengths could be:

(l, w)

(6,4)

(9,6)

(12,8)

5 0
3 years ago
Read 2 more answers
Please helppp it’s urgent , I’ll give a crown !!
mars1129 [50]

Answer:

Slide to the left then rotate 90° to the right then slide down then rotate 180° to the left/ right.

8 0
3 years ago
******Please help me help please help me ******
Veseljchak [2.6K]

Answer:

36

Step-by-step explanation:

7 0
3 years ago
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Triangle abc has vertices A (4,3) B(1,4) and c (2,1) . What are the vertices of the image after the reflection across the line y
andre [41]

Answer:

A'(4,-5), B'(1,-6), C'(2,-3)

Step-by-step explanation:

Reflect across the line y = -1 to get these points. You can count how many points it takes to get to that line and then add the same amount of points to the other side.

8 0
3 years ago
Carson buys eggs and lemons at the store. he pays a total of $39.62. he pays $6.74 for the eggs. he buys 8 bags of lemons that e
Nikolay [14]

The algebraic equation is used to determine the costs of each bag of lemons is 8x = $39.62 - $6.74

According to the question,

Cost of 1 bag of lemons = $x

Cost of 8 bags of lemons = 8*x = 8x

Cost of 8 bags of lemons = Total cost - cost of the egg

8x = $39.62 - $6.74

Hence, the algebraic equation is used to determine the costs of each bag of lemons is 8x = $39.62 - $6.74.

Learn more about algebraic equation here

brainly.com/question/22163226

#SPJ4

8 0
2 years ago
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