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elena-s [515]
2 years ago
5

Can you please help me solve questions 1 and 2

Mathematics
1 answer:
Katyanochek1 [597]2 years ago
7 0

Answer:

see explanation

Step-by-step explanation:

(1)

Given the perimeter then the third side is the perimeter subtract the sum of the 2 given sides, that is

third side

= 4x + 3y - (x - y + x + y)

= 4x + 3y - 2x ← collect like terms

= 2x + 3y

(2)

The area (A) of a triangle is calculated as

A = \frac{1}{2} bh ( b is the base and h the height )

Here b = 2x + 6 and h = x - 2, thus

A = \frac{1}{2}(2x + 6)(x - 2) ← expand factors using FOIL

   = \frac{1}{2}(2x² + 2x - 12) ← distribute

   = x² + x - 6 ← in standard form

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Help me to do this question ​
zysi [14]

Answer:

c1) adjacent

c2) not adjacent

c3) adjacent

c4) not adjacent

c5) adjacent

c6) not adjacent

d1) 20°

Complement: 90° - 20° = 80°

Supplement: 180° - 20° = 160°

d2) 77°

Complement: 90° - 77° = 13°

Supplement: 180° - 77° = 103°

d3) 101°

Complement: doesn't have a complement.

Supplement: 180° - 101° = 79°

d4) 90°

Complement: 90° - 90° = 0°

Supplement: 180° - 90° = 90°

d5) 96°

Complement: doesn't have a complement

Supplement: 180° - 96° = 84°

d6) x

Complement: 90° - x

Supplement: 180° - x

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Supplement: 180° - y

7 0
3 years ago
Help please I give thanks
lawyer [7]

Answer:

17664

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Solve for x in the equation x squared + 11 x + StartFraction 121 Over 4 EndFraction = StartFraction 125 Over 4 EndFraction.
telo118 [61]

Answer:

x = -13 or 2

Step-by-step explanation:

x² + 11x + ¹²¹/₄ = ¹²⁵/₄

(x + ¹¹/₂)² = ¹²⁵/₄

x + ¹¹/₂ = ±¹⁵/₂

x = -¹¹/₂ ± ¹⁵/₂

x = -13 or 2

8 0
3 years ago
Can answer this please
kirill [66]

Answer:

\frac{a}{b}  =  \frac{3}{2}

Step-by-step explanation:

Since both the triangles are similar, so their corresponding sides would be in proportion.

Therefore,

\frac{a}{b}  =  \frac{2.1}{1.4}  \\  \\  \frac{a}{b}  =  \frac{3}{2}

5 0
2 years ago
Which of the following polynomials corresponds to the subtraction of the multivariate polynomials 19x 3 + 44x 2 y + 17 and y 3 -
ycow [4]

The polynomial y3 - 11xy2 + 2x2y - 13x3 corresponds to the subtraction of multivariate polynomial because of the minus and plus sign in it. Also, the variables cannot be easily added or subtracted because they are all different. Unlike in the polynomial 19x3 + 44x2y + 17, it has no minus sign. 

5 0
3 years ago
Read 2 more answers
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