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2 years ago

Triangle

Mathematics

1 answer:

snow_tiger [21]2 years ago

5 0

Answer:

Step-by-step explanation:

You add 10 more so it should be 19cm

Mark brainliest please:)

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Math help- 14 points!

Anit [1.1K]

Answer:

yeah he is right the answer is the photo

Step-by-step explanation:

7 0

3 years ago

Given f(x) = x⁴- 3x³ + 9x²- 17x + 42 and g(x) = -x² - x - 6, where g(x) cant equal 0, find (f/g)(x)

12345 [234]

Step-by-step explanation:

De qué forma how is your night give me a picture

4 0

2 years ago

una ventana rectangular tiene l metros de ancho y h metros de altura, con un perímetro de 6 metros y un área de 2m² ¿cuál es la

seropon [69]

Answer:

The formula for calculating the width of the window is

$w=\frac{-(-3)(+/-)\sqrt{-3^{2}-4(1)(2)}} {2(1)}$

Step-by-step explanation:

<u><em>The question in English is</em></u>

A rectangular window is l meters wide and h meters high, with a perimeter of 6 meters and an area of 2m². What is the formula for calculating the width of the window?

we know that

The perimeter of the window is equal to

$P=2(l+w)$

we have

$P=6\ m$

$6=2(l+w)$

simplify

$3=(l+w)$

isolate the variable l

$l=3-w$ ----> equation A

The area of the window is equal to

$A=lw$

we have

$A=2\ m^2$

$2=lw$ ----> equation B

substitute equation A in equation B

$2=(3-w)w$

solve for w

$2=3w-w^2$

$w^2-3w+2=0$

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$w^2-3w+2=0$

$a=1\\b=-3\\c=2$

substitute in the formula

$w=\frac{-(-3)(+/-)\sqrt{-3^{2}-4(1)(2)}} {2(1)}$ ---> formula for calculating the width of the window

$w=\frac{3(+/-)\sqrt{1}} {2}$

$w=\frac{3(+/-)1} {2}$

$w=\frac{3(+)1} {2}=2\ m$

$w=\frac{3(-)1} {2}=1\ m$

7 0

3 years ago

Would you please help me with this quiz answer, I will really appreciate if you do.

laila [671]

Answer:

a . domain 5,0,7,9,0

range -2,-2,-4,8,2

b. domain 2,4,8,9

range 1,2,4,11

Step-by-step explanation:

<h3>a is not a function</h3>

because function is a relationship in which each domain element occurs only once.

<h3>b is a function</h3>

6 0

2 years ago

Jessica stuffed bear has a mass of 400 grams. What is its mass in milligrams?

expeople1 [14]

400,000 milligrams because 1 gram is 1000 milligram.

3 0

2 years ago