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3 years ago

What is the coefficient in the expression 5+ 9y

Mathematics

2 answers:

IRISSAK [1]3 years ago

8 0

Answer:

Step-by-step explanation:

The coefficient is the number directly next to the variable, in this case, the variable being y, and the number being 9.

In the question:

9y + 5,

9 is the coefficient

y is the variable

5 is a constant (does not change).

Note that the coefficient and constant cannot change, but the value of the variable (y) can vary (hence the name).

Fantom [35]3 years ago

4 0

The coefficient is number 9, because it is in front of the variable y.

Hope this helps.

r3t40

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You insurance policy on your car costs $600 a year. If you total your vehicle, you insurance company will pay $25,000 towards a

vladimir2022 [97]

Answer:

Your annual expected value is -$550.

Step-by-step explanation:

0.002 probability that you will total your car.

If you total your car, you pay the insurance of $600, but you get the $25,000 insurance. So in total, the net value will be $24,400.

1-0.002 = 0.998 probability that you will not total your car.

In this case, you lose $600.

What is your annual expected value?

Multiply each net value by it's probability.

E = 0.002*24400 - 0.998*600 = -550

Your annual expected value is -$550.

4 0

3 years ago

Which choice is equivalent to the quotient shown here for acceptable values of x?

Degger [83]

Answer: OPTION D

Step-by-step explanation:

You need to remember this property:

$\frac{\sqrt{x} }{\sqrt{y} }=\sqrt{\frac{x}{y} }$

And remember that:

$\frac{a}{a}=1$

Then, the first step is rewrite the expression:

$\frac{\sqrt{30(x-1)} }{\sqrt{5(x-1)^2}}$ $=\sqrt{\frac{30(x-1)}{5(x-1)^2}} }$

Now, to find the corresponding equivalent expression, you need to simplify the expression.

Therefore, the equivalent expression is the following:

$\sqrt{\frac{6}{(x-1)}} }$

Finally, you can observe that this matches with the option D.

3 0

4 years ago

Read 2 more answers

Find the partial fraction decomposition of

Gwar [14]

$\dfrac1{x(x-1)}=\dfrac ax+\dfrac b{x-1}$

$1=a(x-1)+bx$

If $x=0$ , then

$1=-a\implies a=-1$

If $x=1$ , then

$1=b$

So we have

$\dfrac1{x(x-1)}=\dfrac1{x-1}-\dfrac1x$

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3 years ago

How long will it take for the balance of an account to double if the savings account earns 0.75% annual interest compounded mont

Margarita [4]

You're looking for the time $t$ that it takes for the principal $P$ to double, so $A=2P$ . Dividing both sides of the formula by $P$ leaves you with

$2=\left(1+\dfrac rn\right)^{nt}$

You're given that the account earns 0.75% interest and that the interest is compounded monthly, so $r=0.0075$ and $n=12$ .

$2=\left(1+\dfrac{0.0075}{12}\right)^{12t}$
$\ln2=\ln\left(1+\dfrac{0.0075}{12}\right)^{12t}$
$\ln2=12t\ln\left(1+\dfrac{0.0075}{12}\right)$
$t=\dfrac{\ln2}{12\ln\left(1+\dfrac{0.0075}{12}\right)}\approx92.45$

8 0

3 years ago

Can someone help me with this math homework please!

slega [8]

Answer:

3. The number of students that rode on each bus

Step-by-step explanation:

The equation they give us is:

2b + 6 = 70

The question already tells us that in this equation:

2 is the 2 buses that the school hired

6 is the 6 leftover kids who couldn't fit on the 2 buses

The question also tells us that the 2 buses only have a total of 64 seats, so 32 seats on 1 bus (64/2 = 32).

So that means b would equal the 32 seats on 1 bus, or the number of students that rode on each bus.

Hope it helps (●'◡'●)

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3 years ago