4 years ago

What is the surface area?

Mathematics

1 answer:

QveST [7]4 years ago

4 0

Answer:

6×5=30mm

30÷2=15mm

15mm2

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What is the 101st term for the sequence 13, 9, 5, 1... ?

NeX [460]

Step-by-step explanation:

a=13
d=13-9=4

${:}\longrightarrow$ $\sf S_n={\dfrac {n}{2}}\left [2a-(a-1)d\right]$

${:}\longrightarrow$ $\sf S_101={\dfrac {101}{2}}\left [26 (12)4\right]$

${:}\longrightarrow$ $\sf 50.5×1248$

${:}\longrightarrow$ $\sf S_101=63504$

${:}\longrightarrow$ $\sf a_n=a+(n-1)d$

${:}\longrightarrow$ $\sf a_101=13+(101-1)-4$

${:}\longrightarrow$ $\sf a_101=13+100(-4)$

${:}\longrightarrow$ $\sf 13-400$

${:}\longrightarrow$ $\sf a_101=-387$

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3 years ago

In Mrs. Benton's algebra class, a student who has an average of 94 for the last grading period of the year is anarded a summe

Delvig [45]

Answer:

I Think the answer should be (B)

Let me know if its correct.

Step-by-step explanation:

when you average it you only use the final number of the scores for example 94 the last number is 4.

4+6+0+4÷100

= 10.04

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3 years ago

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rosijanka [135]

Answer:

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Read 2 more answers

Determine if the two triangles are congruent

hammer [34]

Answer:

yes, SAS

Step-by-step explanation:

you know an angle and a side. they also share a side so that's congruent. so you have 2 sides and an Angle so SAS

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3 years ago

Blue River is 212 miles long. What is the length of the river on the map, if the scale is 1 inch : 50 miles?

exis [7]

Answer: 4.24 inches
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3 years ago