All categories

4 years ago

Which binomial expressions are factors of 2x^3+5x^2-x-6

Mathematics

1 answer:

Julli [10]4 years ago

7 0

GCF= 1

FACTORED VERSION = (X-1) (2X+3)(X+2)

You might be interested in

Please help with this question, I need to make sure I'm right. Thanks

Lina20 [59]

an=4n+1

Sum of first 30 terms

a1+a2+.................a30

Sn=(a1+an)*n/2

a1-----------first terms

an=---------last term-----a30

n= number of terms-----30

calculation of a1

a1=4n+1=4*1+1=5

calculation of an

a30=4*30+1=121

S30=(a1+a30)*30/2

S30=(5+121)*30/2=1890

The sum of first 30 terms is 1890

4 0

3 years ago

What is the equation of the line through 4.2 and 0, -2?

MissTica

Answer:

y = x-2

Step-by-step explanation:

y = mx + b as an equation

m = slope

slope = (change in y) / (change in x) = (y₂-y₁)/(x₂-x₁) = (y₁-y₂)/(x₁-x₂) = (2-(-2))/(4-0) = 4/4 = 1

y = 1*x + b

plug a value in, e.g. (0, -2)

-2 = 1 * 0 + b

-2 = b

our equation is thus

y = x - 2

7 0

3 years ago

A circle with radius 3 has a sector with a central angle of 1/9 pi radians

Art [367]

The area of sector is 1.57 m²

Explanation:

Given:

Radius, r = 3 m

Central angle of a sector = 1/9π radians

Area of sector, A = ?

We know:

Area of sector, A = $\frac{1}{2} r^2 \alpha$

where,

α is the central angle in radians

On substituting the value we get:

$A = \frac{1}{2} X(3)^2 X \frac{1}{9}X 3.14\\ \\A = 1.57 m^2$

Therefore, the area of sector is 1.57 m²

5 0

4 years ago

What is -1 ⅓ × -⅖ Please explain your answer and show your work.

lakkis [162]

Answer:

$\frac{8}{15}$

Step-by-step explanation:

Change the mixed number into an improper fraction: -1 × 3 = -3, -3 + 1 = -2. Put -2 over 3: $\frac{-2}{3}$
Multiply -2/3 and -2/5: $\frac{-2}{3}$ × $-\frac{2}{5}$ = $\frac{8}{15}$

Therefore, the answer is $\frac{8}{15}$ .

6 0

3 years ago

Find the x-and y-intercept of the equation 5x+3y=15

OLEGan [10]

The x-intercept is (3,0). The y-intercept is (0,5).

6 0

4 years ago