3 years ago

Verify whether x=-1/3 is a zero of the polynomial p(x) =3x+1

Mathematics

1 answer:

nexus9112 [7]3 years ago

4 0

Answer:

yes

Step-by-step explanation:

If x = - $\frac{1}{3}$ , then p(x) = 0

p( - $\frac{1}{3}$ ) = - $\frac{1}{3}$ × 3 + 1 = - 1 + 1 = 0

Thus x = - $\frac{1}{3}$ is a zero of p(x)

You might be interested in

Two sisters drive 144 miles on a camping trip they averaged at least 32 miles per gallon on the trio describe the number of gall

LUCKY_DIMON [66]

X in less than or equal to 4.5. it is this because 32 is the least number of miles per gallon. 144/32=4.5.

8 0

2 years ago

Solve for x. 2^6x+7=(1/8)^1-5x

wel

as a fraction the answer is

x=(10/9)

as a mixed number

x=1(1/9)

as a decimal

x=1.1

I wasn't sure which form you were looking for I I gave you them all

8 0

2 years ago

A survey of 25 grocery stores revealed that the mean price of a gallon of milk was $2.98, with a standard error of $0.10. What i

Gnesinka [82]

Answer:

95% confidence interval: (2.784,3.176)

Step-by-step explanation:

We are given the following information in the question:

Sample size, n = 25

Sample mean = $2.98

Standard error = $0.10

Alpha = 0.05

95% confidence interval:

$\mu \pm z_{critical}(\text{Standard error})$

Putting the values, we get,

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

$2.98 \pm 1.96(0.10) = 2.98 \pm 0.196 = (2.784,3.176)$

5 0

2 years ago

Anyone know how to factor this: x^3 -3x^2 -10x=0

Kazeer [188]

Answer : x = 0,5,-2
Step 1 : factor left side
x(x+2)(x-5)=0
step 2 : set factors equal to 0
x=0, x+2=0 or, x-5=0

6 0

2 years ago

Help with 2 algebra questions? Will give lots of points too.

Nat2105 [25]

1 b
2 c
Hope it helps:)

3 0

3 years ago

Read 2 more answers

Verify whether x=-1/3 is a zero of the polynomial p(x) =3x+1​

Verify whether x=-1/3 is a zero of the polynomial p(x) =3x+1