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garri49 [273]
3 years ago
11

How many pairs of whole numbers have the sum of 99

Mathematics
1 answer:
valentina_108 [34]3 years ago
7 0
50 pairs of whole numbers
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Factorize the following: <br>49x² - 25​
creativ13 [48]

Answer:

(7x+5)(7x-5)

Step-by-step explanation:

We can use the difference of squares equation which states that when a number is multiplied like: (ax+b)(ax-b) then it equals (ax-b). In this equation, since there is no "b" in the typical ax^2+bx+c, we can recognize that the answer is not a square, but a difference of squares.

3 0
3 years ago
Marco is building a house. he bought lots of wood to make the frame of the house. he wants right angles for his corners. if he u
Ierofanga [76]
The other angle is adjacent to 55 degrees which means:

55+x=180

x=125 so it 125 degrees
3 0
4 years ago
An insect crawls 30 inches in 16.3 minutes. If
omeli [17]

Answer:

Step-by-step explanation:

Convert 6 hours to minutes so that 6 hours and 16. 3 minutes can be in the same units.

Since 1 hour = 60 minutes, then 6 hours = 6 x 60 minutes = 360 minutes

Since the insect has more minutes to crawl (360 minutes), then we expect more inches to be covered. Therefore, the ratio is 360 minutes to 16.3 minutes

= 360 minutes : 16.3 minutes

= 360 : 16.3  

Now express the ratio as fraction and relate it with 30 inches

= 360/16.3  x  30/1

= 10800/16.3

= 662 .576687 and this is approximately 650 inches

Answer  = 650 = (C)

3 0
3 years ago
1 .the base of a trapezoid are 11 meter and 14 meters.its height is 10 meters . what is the area of the trapezoid?
kvasek [131]
Question 1
Use the formula for the area of a trapezoid. a and b are the bases. h = height.

A= \frac{a+b}{2}h=\frac{11+14}{2}*10 = \frac{25}{2}*10 = 12.5*10 = \boxed{125\ m^2}

Question 2
Use the formula for the area of a rhombus. p and q are the diagonals.

A = \frac{pq}{2} = \frac{21*32}{2} = \frac{672}{2} = \boxed{336\ m^2}

Question 3
Use the formula for the area of a parallelogram. b is the base and h is the height.

A = bh = 36*45 = \boxed{1620\ in^2}


5 0
3 years ago
Write the sentence as a conditional statement. All acute angles have measures less than 90°.
Fiesta28 [93]

Given statement is "All acute angles have measures less than 90°."

Now we have to rewrite that sentence as a conditional statement.

Given statement is mixture of two simple statements "All acute angles" and  "measures less than 90°".


So let

P = Angle is acute.

Q = Angle measures less than 90°.


conditional statement using p and q is given by " If P then Q"

so the final answer in conditional format "If P then Q" can be written as:

<u>"If an angle is acute then that angle measures less than 90°.</u>

8 0
3 years ago
Read 2 more answers
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