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3 years ago

PLEASE GIVE ME ANSWERS

Mathematics

1 answer:

matrenka [14]3 years ago

7 0

They are all eawualateral

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Find the value of x. Round to the nearest tenth

IRISSAK [1]

Answer:

54.8 (rounded to the nearest tenth from 54.76558202)

Step-by-step explanation:

Using the Cosine equation (CAH) you type in a calculator "cos(x) = 4.5/7.8".

This will get you the answer if typed in a calculator and hitting "SOLVE".

6 0

2 years ago

Whats 245 over 320 simplified

marta [7]

$\frac{245}{320} = \frac{49 \times 5}{64 \times 5} = \boxed{\bf{\frac{49}{64}}}$

8 0

2 years ago

Not a timed or graded assignment. Please decompose the number inside of radical using primes. Quick answer = amazing review :)

ss7ja [257]

SOLUTION

The given expression is:

$-5\sqrt[]{147\times r^{13}\times s^8}$

Rewrite the expression

$-5\sqrt[]{49\times3\times r^{12}\times r^1\times s^{4\times2}}$

This further give

$\begin{gathered} -5\sqrt[]{49\times3\times(r^6)^2\times r^1\times(s^4)^2} \\ =-5\times7\times r^6\times s^4\sqrt[]{3\times r} \\ =-35r^6s^4\sqrt[]{3r} \end{gathered}$

Therefore, the solution is

$-35r^6s^4\sqrt[]{3r}$

7 0

7 months ago

Liza is driving to her sister's house 360 miles away. After 4 hours, Liza is 2 3 of the way there.

DochEvi [55]

Liza is driving to her sister's house 360 miles away. After 4 hours, Liza is 2/3 of the way there. How many more hours does Liza have to drive?

Answer:

Liza need to drive 2 more hours to reach her sister house

Solution:

Given that Liza is driving to her sister's house 360 miles away

So total distance = 360 miles

After 4 hours, Liza is 2/3 of the way there.

$\frac{2}{3} r d \text { of total distance }=\frac{2}{3} \times 360=240$

So Liza has covered 240 miles in 4 hours

Let us find the speed

The relation between distance and speed is given as:

$speed = \frac{distance}{time}$

$speed = \frac{240}{4} = 60$

Thus speed = 60 miles per hour

Assuming speed is same throughout the journey, let us calculate the time taken to complete remaining distance

Remaining distance = 360 - 240 = 120 miles

Now distance = 120 miles and speed = 60 miles per hour

$time taken = \frac{distance}{speed}\\\\time taken = \frac{120}{60} = 2$

Thus Liza need to drive 2 more hours to reach her sister house

4 0

3 years ago

Which statement describes the expression 9(8 + 25)?

Norma-Jean [14]

2 because you do what is in parenthesis first :)

3 0

2 years ago

Read 2 more answers