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3 years ago

Divide £300 into a ratio of 3:7 Can someone figure this out quick PLEEASSSEE

Mathematics

1 answer:

Mama L [17]3 years ago

7 0

90:210. 210+90=300. multiply both sides of the ratio by 30.

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P(x)=2x^5+9x^4+9x^3+3x^2+7x-6;x=i,-2

satela [25.4K]

Answer:

The value of the polynomial function at P(1) and P(-2) is 24 and 0 respectively.

Step-by-step explanation:

We are given with the following polynomial function below;

$\text{P}(x) = 2x^{5} +9x^{4} +9x^{3} +3x^{2}+7x-6$

Now, we have to calculate the value of P(x) at x = 1 and x = -2.

For this, we will substitute the value of x in the given polynomial and find it's value.

At x = 1;

$\text{P}(1) = 2(1)^{5} +9(1)^{4} +9(1)^{3} +3(1)^{2}+7(1)-6$

$\text{P}(1) = (2\times 1) +(9\times 1)+(9 \times 1)+(3\times 1)+(7\times 1)-6$

$\text{P}(1) = 2 +9+9+3+7-6$

P(1) = 30 - 6

P(1) = 24

At x = -2;

$\text{P}(-2) = 2(-2)^{5} +9(-2)^{4} +9(-2)^{3} +3(-2)^{2}+7(-2)-6$

$\text{P}(-2) = (2\times -32) +(9\times 16)+(9 \times -8)+(3\times 4)+(7\times -2)-6$

$\text{P}(-2) = -64 +144-72+12-14-6$

P(-2) = 156 - 156

P(-2) = 0

Hence, the value of the polynomial function at P(1) and P(-2) is 24 and 0 respectively.

3 0

3 years ago

Dr. Comeaux decides to conduct a survey of her class to determine whether the number of breaks is sufficient for a three-hour cl

irina1246 [14]

Answer:

Random and Representative.

Step-by-step explanation:

According to the Question,

Given That, Dr. Comeaux decides to conduct a survey of her class to determine whether the number of breaks is sufficient for a three-hour class period.

She assigns each of her 40 students a number and arbitrarily selects 20 using a computer program.
Using the language of research methodology, Dr. Comeaux's sample is both a Representative and Random sample.

4 0

3 years ago

5+b=25 b=20 5+20=25 =?

Arisa [49]

The numbers are equal. 25=25

4 0

3 years ago

Read 2 more answers

Vectors

raketka [301]

Answer:

nop no. idea if you get it please share

8 0

3 years ago

Rachel, Kayla, and Francesca raised $35.67 for their basketball team. Rachel and Kayla each raised the same amount, and Francesc

nata0808 [166]

Answer: Expression for the amount raised by Rachel = x

Expression for the amount raised by Francesca = x+10.50

Step-by-step explanation:

Let x = the amount raised by Kayla.

Since Rachel and Kayla each raised the same amount.

then, expression for the amount raised by Rachel = x

Francesca raised $10.50 more than each of them.

Then, expression for the amount raised by Francesca = x+10.50

6 0

3 years ago