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Margarita [4]
3 years ago
5

Construct equilateral triangle with sides, ABC such that AB = AC = CB = 10.5 cm. Measure and write down the size of angle < A

BC.
Mathematics
1 answer:
tester [92]3 years ago
5 0

Answer:

∠ABC = 60°

Step-by-step explanation:

All angles in equilateral triangles are equal.

all angles in triangles added together = 180°

180°/3 = 60°

All angles in equilateral triangles are equal to 60°.

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A square has a side length of p - 7. What is its area?
Masteriza [31]

Answer:

p²-14p+49

Step-by-step explanation: To find the area of a square just multiply side x  side. So (p-7)(p-7). Use FOIL or double distributive property to get p²-7p-7p+49 then combine the two middle terms to get p²-14p+49

6 0
3 years ago
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Bob sold 5 toaster ovens and 3 blenders for $500. if a blender is $20 less than a toaster oven, how much is a blender?
Harrizon [31]
The answer would be $50 per blender. 
To explain the way I did it --
Toaster ovens - 70 * 5 = 350
70 - 20 = 50
Blenders - 50 * 3 = 150
350 + 150 = 500
7 0
3 years ago
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If sin ? = 12 over 37, use the pythagorean identity to find cos ?. cos ? = ± 35 over 37 cos ? = ± 23 over 37 cos ? = ± 35 over 1
kotegsom [21]
If sin x = 12/37, we have to find cos x.
The identity:
sin² x + cos² x = 1
( 12/37)² + cos² x = 1
144 / 1369 + cos² x = 1
cos² x = 1 - 144/1369
cos² x = 1369/1369  - 144/1369
cos² x = 1225 / 1369
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Answer:
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7 0
3 years ago
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Which of the following points are solutions to the inequality below?
Helga [31]
The inequality :y ≥ 2 x - 1We shall plug-in all the values:A ) - 3 ≥ 6 - 1- 3 ≥ 5    ⊥  ( not correct )
B ) - 5 ≥ 4 - 1- 5 ≥ 3   ⊥C ) - 5 ≥ 6 - 1- 5 ≥ 5   ⊥D ) 0 ≥ 0 - 10 ≥ - 1    T  ( correct )E ) - 8 ≥ 10 - 1- 8 ≥ 9   ⊥F ) - 9 ≥ 10 - 1- 9 ≥ 9   ⊥Answer: D )   ( 0, 0 ).

5 0
3 years ago
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Solve |2x - 5| = 4. {x | x = 0.5 or x = 4.5} {x | 0.5 &lt; x &lt; 4.5} {x | x = -4.5 or x = 4.5} Solve |2x - 5| = 4.
stiks02 [169]

Answer:

x = 4.5                            x = .5

Step-by-step explanation:

|2x - 5| = 4

The absolute value has two solutions one positive and one negative

2x-5 = 4              2x-5 = -4

Add 5 on each side

2x-5+5 = 4+5         2x-5+5 = -4+5

2x = 9                        2x =1

Divide by 2

2x/2 =9/2                  2x/2 = 1/2

x = 4.5                            x = .5

3 0
3 years ago
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