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Papessa [141]
3 years ago
6

Find the 21st term in the arithmetic sequence, 3,7 11, 15, 19,

Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
6 0

Answer:

83

Step-by-step explanation:

keep adding 4 til the 21st number.

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The area of the conference table in Mr. Nathan’s office must be no more that 175 ft^2. If the length of the table is 18 ft more
hodyreva [135]

Answer:

(0, 7]

Step-by-step explanation:

Let's call the width W and the length L.  The length is 18 feet more than the width, so:

L = W + 18

The area can be no more than 175, so:

A ≤ 175

LW ≤ 175

Since L = W + 18:

(W + 18) W ≤ 175

W² + 18W ≤ 175

W² + 18W - 175 ≤ 0

(W - 7) (W + 25) ≤ 0

-25 ≤ W ≤ 7

However, the width of the table can't be nonpositive, so:

0 < W ≤ 7

Or in interval notation, (0, 7].

6 0
3 years ago
Sports American football fields measure 100 yards long between the end zones, and are 53 1_3yards wide. Is the length of the dia
Ann [662]

Answer:

113 \frac{1}{3} Yards

Step-by-step explanation:

solving using  Pythagorean Theorem

a^2+b^2=c^2

100^2+53.33^2 = c^2

10,000+2844.0889=c^2

12844.1=c^2 square root

= 113 \frac{1}{3}

Base on the explanation above we can tell that the length of the diagonal across this field is less than 120 yards.

8 0
2 years ago
Which is equivalent to $4.00?
saul85 [17]

Answer:

D

Step-by-step explanation:

4 0
3 years ago
3.5d + 6.25 = 1 + 5.25d<br><br> The solution is d =
vodka [1.7K]

Answer:

d = 3

Step-by-step explanation:

3.5d + 6.25 = 1 + 5.25d

5.25d - 3.5d = 6.25 - 1

1.75d = 5.25

d = 5.25 ÷ 1.75 = 3

4 0
3 years ago
HELP HELP I NEED AWNSER
masya89 [10]
I don’t know the answer sorry
7 0
3 years ago
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