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Sever21 [200]
3 years ago
10

Factor (16a2 - 49) completely

Mathematics
1 answer:
riadik2000 [5.3K]3 years ago
5 0

Answer:

(4a+7)(4a-7)

Step-by-step explanation:

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The pie store is having a 55, percent off sale on all of its pies. If the pie you want regularly costs $7 how much would you sav
Veseljchak [2.6K]
This will come to 0.55*7  =  $3.85

You would save $3.85
3 0
3 years ago
Write the equation of the line in slope intercept form that goes through points (1,8) and (5,20)
pantera1 [17]

Answer:

y=3x+5

Step-by-step explanation:

Point slope equation:

y=mx+b

m-slope, b- is y-intercept

equation given 2 points

y-y1 = m(x-x1)

For point (1,8) and slope m=(y2-y1)/(x2-x1) = 20-8/5-1=12/4=3

y-8 =3(x-1)

arange it in point slope format

y-8=3x-3

y=3x-3+8

y=3x+5

6 0
3 years ago
Find the distance between these two points (5,9) and (-7,-7)
Viefleur [7K]

Answer:

20

Step-by-step explanation:

Use the distance formula:

d = \sqrt{(x_2 - x_1)^2 + (y_2-y_1)^2}\\d = \sqrt{(-7 - 5)^2 + (-7 - 9)^2}\\d = \sqrt{(-12)^2 + (-16)^2}\\d = \sqrt{144 + 256}\\d = \sqrt{400} = 20

8 0
3 years ago
10 POINTS only answer if you KNOW
kenny6666 [7]
The answer is D, tony would always be behind Robert.
5 0
3 years ago
Besides the 90° angle measure, what are the other two angle measures of a right triangle with side lengths 5, 12, and 13? Round
TEA [102]
In the right triangle, the longest side is the hypotenuse.
Let α be the angle opposite to the side with a length of 12 units, <span>then according to the Law of sines:

</span>\frac{13}{sin90^o}= \frac{12}{sin \alpha }   \ \ \to \ \ sin \alpha = \frac{12 \cdot sin90^o}{13}=  \frac{12*1}{13}  \approx 0.923 \ \ \to \ m\angle  \alpha \approx 67^o

In a triangle, the three interior angles always add to 180° ⇒

third angle = 180 - 90 - 67 = 23°

Answer:
67° and 23°  (to the nearest degree).
4 0
3 years ago
Read 2 more answers
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