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3 years ago

I think the answer is A is this correct? thank you!

Mathematics

1 answer:

likoan [24]3 years ago

6 0

Answer:

x^2 = a/b (option a)

Step-by-step explanation:

If we have square root at the top and bottom then we take single square root with fraction inside

To remove square root we take square on both sides because square and square root will get cancelled

x^2 = a/b is true

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Tiffany is packing her bags for her vacation. She has 8 unique toy animals, but only 4 fit in her bag. How many different groups

dalvyx [7]

Answer:

Step-by-step explanation:

GIVEN: Tiffany is packing her bags for her vacation. She has $8$ unique toy animals, but only $4$ fit in her bag.

TO FIND: How many different groups of $4$ toy animals can she take.

SOLUTION:

Total unique toy animal Tiffany has $=8$

Total animal that fit in her bag $=4$

Now,

Tiffany has to select $4$ toy animals from $8$ animals.

Number of ways of selecting 4 toy animals $=^8C_4$

$=\frac{8!}{4!4!}$

$=70$

Hence Tiffany has 70 different ways to select group of 4 unique toys.

4 0

3 years ago

One of the legs of a right triangle measures 1 cm and its hypotenuse measures 2 cm.

FromTheMoon [43]

Answer:

1.7 cm

Step-by-step explanation:

The formula to find the hypotenuse: $c^{2} = a^{2} +b^{2}$ . In this case, the hypotenus is given.

1) Substitute the values into the formula.

$2^{2} = 1^{2} +b^{2}$

2) Solve for $b$ .

$4 = 1 + b^{2} \\4 - 1 = b^{2}\\3 = b^{2}\\\sqrt{3} = b\\1.73205 = b$

3) Round the answer to the nearest tenth.

$1.7 = b$

4 0

2 years ago

−4x − 11 = 2(x − 3x) + 13

emmasim [6.3K]

X=-24
i hope this helps you!

8 0

3 years ago

CACHLATE THE SURFACE AREA, SHOW WORK!!! WILL GIVE BRAIN!!

trapecia [35]

Answer:

8 (i think)

Step-by-step explanation:

just use 1/2 x b x h

7 0

3 years ago

Read 2 more answers

A business was valued at £80000 at the start of 2013. In 5 years the value of this business raised to £95000. this is equivalent

Yuri [45]

the yearly increase of x% assumes is compounding yearly, so let's use that.

$~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\dotfill &\£95000\\ P=\textit{original amount deposited}\dotfill &\£80000\\ r=rate\to r\%\to \frac{r}{100}\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{yearly, thus once} \end{array}\dotfill &1\\ t=years\dotfill &5 \end{cases}$

$95000=80000\left(1+\frac{~~ \frac{r}{100}~~}{1}\right)^{1\cdot 5}\implies \cfrac{95000}{80000}=\left( 1+\cfrac{r}{100} \right)^5 \\\\\\ \cfrac{19}{16}=\left( 1+\cfrac{r}{100} \right)^5\implies \sqrt[5]{\cfrac{19}{16}}=1+\cfrac{r}{100}\implies \sqrt[5]{\cfrac{19}{16}}=\cfrac{100+r}{100} \\\\\\ 100\sqrt[5]{\cfrac{19}{16}}=100+r\implies 100\sqrt[5]{\cfrac{19}{16}}-100=r\implies 3.5\approx r$

4 0

2 years ago