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solniwko [45]
3 years ago
11

Which is the last operation preformed when evaluating (8-2x)²+4 for x=3

Mathematics
1 answer:
a_sh-v [17]3 years ago
5 0

Answer:   I think its c sorry if im whrong

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What is the maximum number of intersection points between two triangles?
Andrei [34K]

Answer: six ( 6 ).

Step-by-step explanation:

If Each of a side can, consisting of a shape with only convex angles (which are known to be triangles and squares if we follow definitions ). make at most two intersections. Then, the triangle has the fewest sides, so its upper boundary is set for number of intersections at 2*3, or 6. So basically the maximum number available is 6.

3 0
3 years ago
Find the sum of the first 6 terms of the sequence: –3, 1, 5, 9, . . .A) 45B) 42C) 48D) 25
Leni [432]

SOLUTION

From the sequence give

–3, 1, 5, 9, . . .

The first term, a = -3

The common difference, d = 4 (gotten by adding 4 to the next term).

The number of terms required n = 6.

Formula for sum of an arithmetic sequence is given by

S_n=\frac{n}{2}\lbrack2a+(n-1)d\rbrack

Substituting these values into the equation above we have

\begin{gathered} S_n=\frac{n}{2}\lbrack2a+(n-1)d\rbrack \\ S_6=\frac{6}{2}\lbrack2\times-3+(6-1)4\rbrack \\ S_6=3\lbrack-6+(5)4\rbrack \\ S_6=3\lbrack-6+20\rbrack \\ S_6=3\lbrack14\rbrack \\ S_6=42 \end{gathered}

Hence, the answer is 42, option B

3 0
1 year ago
2−1/2n=3n+16<br><br> ​<br><br> n=3n+16
romanna [79]

Answer:

The answer is

n=5 3/5

Step-by-step explanation:

first collect the like terms:

2-1/2n=3n+16

then...

3n-1/2=16-2

==2 1/2n = 14

===n=5 3/5

3 0
4 years ago
in a continuous data the median class is 40-50. If the cumulative frequencies of the premedian class is one half of the sum of t
Ede4ka [16]

To find the median, add up the frequency column to find how many trains there were in total. There were 44 trains in total in this grouped frequency table, so work out 44 + 1 2 = 45 2 = 22.5. The median is therefore between the 22nd and 23rd values.

3 0
3 years ago
Katie is selling lemonade for $1.50 per cup.she decides to put them on sale for $0.90. What percent discount did she give on her
Novay_Z [31]
The answer is 60%. $1.50 is 150% and $0.90 is 90%. subtract 150% and 90% is 60%.
7 0
3 years ago
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