The system of x+2y=5 and 3x+6y=k has infinite solutions find the value of k

Mathematics

1 answer:

barxatty [35]3 years ago

3 0

15 I’m pretty sure but I don’t know

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A triangle has side lengths of (8.3f+9.6g)(8.3f+9.6g) centimeters, (3.6f+1.5h)(3.6f+1.5h) centimeters, and (6.7h-2.9g)(6.7h−2.9g

nekit [7.7K]

Answer:

The expression (11.9f + 6.7g + 8.2h) cm represent the perimeter of the triangle

Step-by-step explanation:

Perimeter of a triangle = side a + side b + side c

Side a = (8.3f + 9.6g)

Side b = (3.6f + 1.5h)

Side c = (6.7h - 2.9g)

Perimeter of a triangle = side a + side b + side c

= (8.3f + 9.6g) + (3.6f + 1.5h) + (6.7h - 2.9g)

= 8.3f + 9.6g + 3.6f + 1.5h + 6.7h - 2.9g

Collect like terms

= 8.3f + 3.6f + 9.6g - 2.9g + 1.5h + 6.7h

= 11.9f + 6.7g + 8.2h

Perimeter of a triangle = (11.9f + 6.7g + 8.2h) cm

The expression (11.9f + 6.7g + 8.2h) cm represent the perimeter of the triangle

7 0

3 years ago

HELP PLEASE AND THANK YOU 5JAAB

Gnom [1K]

Answer:

$\bold{Q17}\ \angle A\\\\\bold{Q18}\ R\\\\\bold{Q19}\ T\\\\\bold{Q20}\ \angle B\ \leftrightarrow\ \angle C$

Step-by-step explanation:

Q17

$\overline{WA},\ \overline{AS}\ -\ A\ \text{is common}.\ \text{Therefore your answer is}\ \angle A\\\\\text{for}\ \overline{WS}\ \text{and}\ \overline{WA}\to\angle W\\\\\text{for}\ \overline{WS}\ \text{and}\ \overline{SA}\to\angle S\\\\============================$

For Q18 and Q19.

If ΔABC ≅ ΔSRT (congruent), then

$A\ \leftrightarrow\ S\\ B\ \leftrightarrow\ R\\ C\ \leftrightarrow\ T\\\\============================$

Q20

$\text{If}\ AB\cong AC,\ BD\cong CD,\ RSTU\ \text{is a parallelogram (rectangle)},\ \text{then}\\\\\angle 1\ \leftrightarrow\ \angle2\\\angle3\ \leftrightarrow\ \angle4\\\angle C\leftrightarrow\ \angle B\\\angle 5\ \leftrightarrow\ \angle6\\\angle7\ \leftrightarrow\ \angle 8\\\angle R\ \leftrightarrow\ \angle T\\\angle S\ \leftrightarrow\ \angle U$