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2 years ago

These questions kinda hard help

Mathematics

1 answer:

amm18122 years ago

6 0

Answer:

Step-by-step explanation:

Remark

All of the given listed figures have the property of 4 sides and 4 angles. There is also some relationship between the angles or pairs of angles. Only the square follows the same path. The others cannot be chosen because the sides differ and the angle properties are quite different.

Answer: <u>Square</u>

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Find out how long it takes a $ investment to double if it is invested at compounded . Round to the nearest tenth of a year. Use

BabaBlast [244]

Answer:

(A) 8.8 years

Step-by-step explanation:

Given that the principal amount = $ 3100

Rate of compound interest = 8% compounded semiannually.

The given formula is

$A=P\left(1+\frac{r}{n}\right)^{nt}$

Where A is the final amount, P is the principal amount, r is the rate of compound interest, t is the time and n is the number of times per year the interest is compounded.

From the given condition,

P=$3100

r= 8%=0.08 compounded semiannually

n=2

A=2 x 3100=$ 6200.

Put all these in the given formula to get the required time, we have

$6200=3100\left(1+\frac{0.08}{2}\right)^{2t}$

$\Rightarrow \left(1+0.04\right)^{2t}=6200/3100$

$\Rightarrow 1.04^{2t}=2\\\\\Rightarrow 2t\log_{10}(1.04)=\log_{10}(2)\\ \\\Rightarrow 2t =\frac{\log_{10}(2)}{\log_{10}(1.04)}\\\\\Rightarrow 2t =17.673\\\\\Rightarrow t = 17.673/2=8.8365\\$

On rounding to the nearest tenth of a year, t=8.8 years.

So, the invested amount will be double in 8.8 years.

Hence, option (A) is correct.

7 0

3 years ago

2x + 7 + 6x - x what is equivalent to

Anna007 [38]

Answer:

x=1

Step-by-step explanation:

2x+6x-x=7

7x=7

x=1

...............

5 0

3 years ago

Determine if x=-16 is a zero & find the quotiant and the remainder

DerKrebs [107]

Answer:

○ A. No, x = -16 is not a zero of the polynomial.

The quotient is x² - 2x + 83, and the remainder is -1274.

Step-by-step explanation:

This is not a zero. When set to equal zero, you get these roots: -2, -3, -9. Now, about the the Remainder Theorem, I have not been taught this, but just by looking at it, I come across this as the remainder.

I am joyous to assist you anytime.

* I cross my fingers for it to be correct!

3 0

3 years ago

Explain how you can prove that three weeks is less then 24 days

snow_lady [41]

Answer:

7 is the number of how many days are in a week. So 7 x 3 is 21. That is less than 24 days. 24 days is 3 weeks and 3 days.

Step-by-step explanation:

4 0

3 years ago

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