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pogonyaev
3 years ago
10

Select the correct answer from each drop-down menu.

Mathematics
2 answers:
n200080 [17]3 years ago
8 0

Answer:

= 62.68 + 4x

^^ hope this helps at all! :)

liubo4ka [24]3 years ago
6 0

A

Step-by-step explanation:

You might be interested in
Justin built a model of a plane using the scale 2 cm:5m. His model is 29.8 cm
Leokris [45]

Answer:

74.5m

Step-by-step explanation:

cause if to 2cm is equal to 5m then 29.8 will be how

you will use cris cross

5m ×29.8÷2=74.5m

hope it help

4 0
3 years ago
X2-3xy-5xy-7y2+4x2+8y2
Zepler [3.9K]

For this case we must simplify the following expression:

x ^ 2-3xy-5xy-7y ^ 2 + 4x ^ 2 + 8y ^ 2

We must add similar terms taking into account that:

  • Equal signs are added and the same sign is placed.
  • Different signs are subtracted and the major sign is placed.

(x ^ 2 + 4x ^ 2) + (- 3xy-5xy) + (- 7y ^ 2 + 8y ^ 2) =\\5x ^ 2-8xy + y ^ 2

Thus, the simplified expression is:

5x ^ 2-8xy + y ^ 2

Answer:

5x ^ 2-8xy + y ^ 2

4 0
4 years ago
How many whole numbers are there between 30 and 79?
Svetllana [295]

Answer:

50

Step-by-step explanation:

<u>Definition of whole number: </u>Whole numbers are a set of numbers including the set of natural numbers (1 to infinity) and the integer '0'

The formula for finding the number of whole numbers between to given numbers “m” and “n” (assuming that “m” and “n” are included in the listing, and that “n” is the larger value) is:

(n - m) + 1

And the formula gives:

(79 - 30) + 1 = 49 + 1 = 50

8 0
2 years ago
Determine the general solution of cos2X -7cosX -3=0​
vovikov84 [41]

Answer:

x=2pi/3 +2pi n, 4pi/3 +2pi n for all integar of n.

Step-by-step explanation:

3 0
3 years ago
Need help ASAP ASAP
vovangra [49]

Answer:

X = 70, y = 21

Step-by-step explanation:

53 + 6y + 1 = 6y + 54

6y + 54 = 180

180 - 54 = 126

6y = 126

126 ÷ 6 = 21

Y = 21

21 × 6 + 1 = 127

127 = 2x - 13

127 + 13 = 140

140 ÷ 2 = 70

X = 70

Opposite angles are congruent and consecutive angles are supplementary.

Hope that helped and have a great day!

3 0
3 years ago
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