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2 years ago

The triangles below are similar. 3x+3

Mathematics

2 answers:

Montano1993 [528]2 years ago

7 0

The answer would be 3(x+1)

Alex2 years ago

4 0

Answer:

x = 11

Step-by-step explanation:

Given the triangles are similar then the ratios of corresponding sides are equal, that is

$\frac{3x+3}{x+7}$ = $\frac{38}{19}$ = 2 ( multiply both sides by x + 7 )

3x + 3 = 2(x + 7)

3x + 3 = 2x + 14 ( subtract 2x from both sides )

x + 3 = 14 ( subtract 3 from both sides )

x = 11

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Negative 6 equal 2/9 x

Roman55 [17]

Step-by-step explanation:

-6 = 2/9 x

2/9x = -6

x = (-6)×9/2

= -27

4 0

2 years ago

3/5 + 3/7 = it a Fraction problem

Rudik [331]

3/5 + 3/7
Multiply the denominator until they have the same common denominator.
21/35 + 15/35
Add the numerators but NOT the denominators
Final Answer: 36/35 or 1 1/35

5 0

3 years ago

Read 2 more answers

Find the vertex of this parabola. y = -2x2 + 4x + 12

STatiana [176]

For this case we have the following equation:
$y = -2x ^ 2 + 4x + 12
$
Deriving we have:
$y = -2x ^ 2 + 4x + 12

y '= -4x + 4$
We match zero:
$-4x + 4 = 0
$
We clear the value of x:
$4x = 4

x = 4/4

x = 1$
Then, we substitute the value of x in the equation of the parabola:
$y = -2 (1) ^ 2 + 4 (1) + 12

y = -2 + 4 + 12

y = 14$
Thus, the vertex of the parabola is the ordered pair:
$(x, y) = (1, 14)$
Answer:
The vertice is:
$(x, y) = (1, 14)$

3 0

2 years ago

Select the correct answer

jeka57 [31]

OB would be correct

6 0

3 years ago

Will mark brainliest if fast

marshall27 [118]

Sector area can be found with the formula $A = \frac{\theta}{360} \pi r ^2$ where $\theta$ is the central angle.