All categories

2 years ago

I know its the weekend but can someone please help me.

Mathematics

2 answers:

r-ruslan [8.4K]2 years ago

8 0

Answer: 3/10

If you want reason please let me know

laila [671]2 years ago

8 0

Answer:

3/10

Step-by-step explanation:

A negative multiplied by a negative is a positive, so I went with the positive 3/10 over the -3/10. I did the math in my head, so I'd recommend getting a second answer just in case. I hope this helped! <3

You might be interested in

you deposit 200 into an account that pays 7% interest compounded quarterly. how much will you have in 5 years

scoray [572]

First, convert R percent to r a decimal
r = R/100
r = 7%/100
r = 0.07 per year,

Then, solve our equation for A
A = P(1 + r/n)nt
A = 200.00(1 + 0.005833333/12)(12)(5)
A = $ 283.53

Summary:
The total amount accrued, principal plus interest,
from compound interest on an original principal of
$ 200.00 at a rate of 7% per year
compounded 12 times per year
over 5 years is $ 283.53.

8 0

2 years ago

Merlin invested $48,750 into an interest-bearing account 7 years ago, and withdrew all of the money to close it. The

dmitriy555 [2]

Interset always positive ,if a bank don't give interest even though interset remains zero doesn't become negative

Let's find interest here to proof

Principal=P=48750
Annual=A=49975

Interest:-

A-P=49975-48750=1225

3 0

2 years ago

Write the polynomial in standard form. 4g – g3 + 6g2 – 9

Brrunno [24]

Write it in descending order of degree
that is

-g^3 + 6g^2 + 4g - 9

8 0

2 years ago

-3x - y = 15<br> y = -8x<br> (x, y) = (0<br> )<br> 9,0

Nataly [62]

<h3>The solution is (x, y) = (3, -24)</h3>

<em><u>Solution:</u></em>

<em><u>Given system of equations are:</u></em>

-3x - y = 15 -------- eqn 1

y = -8x ------ eqn 2

We have to find solution of (x, y)

We can solve by substitution method

<em><u>Substitute eqn 2 in eqn 1</u></em>

-3x - (-8x) = 15

-3x + 8x = 15

5x = 15

Divide both sides by 5

Substitute x = 3 in eqn 2

y = -8(3)

Thus solution is (x, y) = (3, -24)

4 0

2 years ago

A forester studying the effects of fertilization on certain pine forests in the Southeast is interested in estimating the averag

ahrayia [7]

Answer:

$P(-2 \leq \bar X -\mu \leq 2)$

If we divide both sides by $\frac{\sigma}{\sqrt{n}}$ we got:

$P(\frac{-2}{\frac{4}{\sqrt{9}}}\leq Z \leq \frac{2}{\frac{4}{\sqrt{9}}})$

And we can use the normal distribution table or excel to find the probabilites and we got:

$P(-1.5 \leq Z \leq 1.5)= P(Z$ Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Solution to the problem

Let X the random variable that represent the area of a population, and for this case we know the distribution for X is given by:

$X \sim N(M,4)$