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Eddi Din [679]
4 years ago
11

Please help me I don't know

Mathematics
2 answers:
slava [35]4 years ago
5 0
To find a perfect square we want the equation to look like (y - 8)(y-8) because 
the two numbers that add up to -16 and multiply into 64. are -8, -8. -8^2 is 64.
andreyandreev [35.5K]4 years ago
5 0
64 is the answer because it is in the form of x^2 -2xy+y^2. so y^2- 2.y.8+ 8^2
You might be interested in
Angle measures and segment lengths. Algebra Find the value of each variable.
dolphi86 [110]

Answer:

x = 60°

Step-by-step explanation:

According to the Outside Angles Theorem, the angle formed by the two tangents in the diagram above is equal to half of the difference of the measures of two arcs  that are intercepted.

Therefore:

x = \frac{1}{2}(360 - 120) - 120)

x = \frac{1}{2}(240 - 120)

x = \frac{1}{2}(120)

x = 60°

8 0
3 years ago
Solve. 8/5 = -15- 7z/30
xxTIMURxx [149]

Answer:

-138/7

Step-by-step explanation:

use l.c.m . Or multiply through by 30.

3 0
3 years ago
The measure of angle one is five less than four times the measure of angle 2. if angle 1 and angle 2 from a linear pair, what ar
Montano1993 [528]
Linear pairs add up to 180 degrees.

x=4y-5
x+y=180

Substitute x
4y-5+y=180
5y-5=180
5y=185
y=37

Plug the y value in
x+37=180
x=143

Final answer: angle 1= 143 degrees, angle 2= 37 degrees
6 0
3 years ago
The length of the base of an isosceles triangle is x. The length of a leg is 4x - 3. The perimeter of the triangle is 39. Find x
nika2105 [10]

Answer:

The value of x is 5.

Step-by-step explanation:

Given that:

Base of triangle = b = x

Length of side of triangle = a = 4x-3

Perimeter = 39

In an isosceles triangle, two sides of the triangle are equal.

Perimeter of an isosceles triangle is given by,

P = 2a+b

Putting the values

39 = 2(4x-3)+x

39=8x-6+x

39=9x-6

39+6=9x

45=9x

9x=45

Dividing both sides by 9

\frac{9x}{9}=\frac{45}{9}\\x=5

Hence,

The value of x is 5.

7 0
3 years ago
PLEASE help<br><br>vvvvvvvvv
stepan [7]

Answer:Lateral Surface Area is 672m^2

Step-by-step explanation:

Surface Area of Triangles= 8m*12m=96

Surface Area of Top & Bottom Rectangles= 12m*18m*2=432m^2

Surface Area of Middle Triangle=12m*18m=216

Total Surface Area= 216+432+96

672m^2

5 0
3 years ago
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