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3 years ago

How many triangles can be constructed with sides measuring 5 m, 16 m, and 5 m?

1 answer:

3 0

There are two measures 5 cm then the triangle will be isosceles or 16 is far beyond 5 + 5 = 10 so we cannot build any triangle so te answer is B none

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How can I solve this?

lord [1]

X=4 see attached steps

3 0

3 years ago

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ycow [4]

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8 0

3 years ago

Evaluate 2(N + 3) if n = 5 show your work

algol [13]

ANSWER:

N = 16

STEP BY STEP EXPLANATION:

2(5+3)

n=16

6 0

3 years ago

What is the sum of 20x^2-10x-30

ivann1987 [24]

Answer:

The sum of the roots is 0.5

Step-by-step explanation:

The correct question is

What is the sum of the roots of 20x^2-10x-30

we know that

In a quadratic equation of the form

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

The sum of the roots is equal to

$-\frac{b} {a}$

in this problem we have

$20x^{2} -10x-30=0$

$a=20\\b=-10\\c=-30$

substitute

$-\frac{(-10)} {20}=0.5$

Verify

Find the roots of the quadratic equation

The formula to solve a quadratic equation is equal to

$x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}$

$a=20\\b=-10\\c=-30$

substitute

$x=\frac{-(-10)\pm\sqrt{-10^{2}-4(20)(-30)}} {2(20)}$

$x=\frac{10\pm\sqrt{2,500}} {40}$

$x=\frac{10\pm50} {40}$

$x=\frac{10+50} {40}=1.5$

$x=\frac{10-50} {40}=-1$

The roots are x=-1 and x=1.5

The sum of the roots are

$-1+1.5=0.5$ ----> is ok

5 0

3 years ago

What is the classification for this polynomial?6

Fantom [35]

one term is monomial

two terms are binomials

three terms are trinomials

each term is separated by a + or - sign

so......6 has only one term ......it is a monomial

6 0

2 years ago