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FinnZ [79.3K]
3 years ago
7

Whats (c-7)(c+5) , (double brackets)

Mathematics
2 answers:
kherson [118]3 years ago
6 0

▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

let's evaluate :

  • (c - 7)(c + 5)

  • {c}^{2}  + 5c - 7c - 35

  • {c}^{2}  - 2c - 35
Strike441 [17]3 years ago
5 0

\\ \sf\longmapsto (c-7)(c+5)

\\ \sf\longmapsto c(c+5)-7(c+5)

\\ \sf\longmapsto c^2+5c-7c-35

\\ \sf\longmapsto c^2-2c-35

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What is the area of an isosceles trapezoid, if the lengths of its bases are 16 cm and 30 cm and the diagonals are perpendicular
kicyunya [14]

Call the point of intersection of the diagonals point X.

Each base is the hypotenuse of an isosceles right triangle whose sides are the diagonals and whose 90° angle is at X. The altitude of that triangle (⊥ distance to the base from X) is half the length of the hypotenuse. Then the height of the trapezoid is half the sum of the base lengths.

The area of the trapezoid is the product of the height and half the sum of the base lengths, hence is the square of half the sum of the base lengths.

... Area = ((16 cm +30 cm)/2)² = (23 cm)² = 529 cm²

4 0
3 years ago
Classify each of the following numbers as real, whole, integer, rational or irrational. Some numbers will have more than one cla
Colt1911 [192]
Answer:
1). -98 (integer, real number, rational)
2). 1.98 (real, rational)
3). 1270 (whole, real, integer, rational)
4). 1,232,323 (whole, real, integer, rational)
3 0
3 years ago
The larger number is 18 more than twice the smaller. If the sum of the two numbers is 93, find both numbers
Ganezh [65]

Answer:

larger number=18+(2x)

smaller number=x

(18+2x)+x=93

18 +3x=93

3x=93-18

3x=75

x=25

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18+50

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6 0
3 years ago
An angle measures 73.6° less than the measure of its supplementary angle. What is the measure of each angle?
Vladimir79 [104]

Answer:

Smaller angle = 53.2

Larger angle = 126.8

Step-by-step explanation:

Lets say x is the measure of the supplement. Since we know they're supplementary, we know their angle measure sum will equal 180. We can set up our equation like this x + (x-73.6) = 180. Note: (x - 73.6) is the measure of the smaller angle. By solving, we get 126.8 degrees for the measure of the supplement. If we plug in the value of x into (x-73.6), we get 53.2 degrees as the angle measure of the smaller angle.

6 0
3 years ago
Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.
AysviL [449]

Answer:

Hypotenuse      legs

6 units       arrowBoth         5 units, 1 unit

5 units        arrowBoth        2 units, 3 units

8 units         arrowBoth       5 units, 2 units

3 units          arrowBoth       1 unit, 2 unit

Step-by-step explanation:

i got this because if u add

5+1= 6 units

2+3=5 units

5+2=8 units

1+2=3 units

6 0
3 years ago
Read 2 more answers
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