FIRST CORRECT ANSWER GETS BRAINLIEST

Mathematics

2 answers:

Andrej [43]2 years ago

4 0

The answer is 5s - 10t + 7

k0ka [10]2 years ago

4 0

Following the order of operations (PEMDAS):

Step 1: simplify what’s inside the parentheses. Since we don’t know either variable s or t, we can’t simplify any further from what it already is.

Step 2: distribute the 5 to each of the terms inside the parentheses. This gets you (5s - 10t)

Step 3: arrange your final answer:
7 + 5s - 10t

You can’t simplify any more unless you know one the the variables so you are left with this.

You might be interested in

Estimate a 20% tip on a dinner bill of $161.86 by first rounding the bill amount to the nearest ten dollars.

MAXImum [283]

Answer:

See below

Step-by-step explanation:

If you just want the tip

$0.20*161.86\approx\frac{1}{5}*160=32$

If you want the total bill

$1.20*161.86\approx160+32=192$

7 0

2 years ago

Can someone please factor this 15x^2-17x-18

Rudiy27

Answer is 18 and value of x is 0

5 0

3 years ago

Pls pls help Show work :)

Natasha2012 [34]

9514 1404 393

Answer:

31.243 units

Step-by-step explanation:

The mnemonic SOH CAH TOA reminds you of the relationships between sides and angles in a right triangle. Using the attached figure, it is convenient to find the length of BE as an intermediate step in the solution.

Sin = Opposite/Hypotenuse

sin(30°) = BE/100

BE = 100·sin(30°)

Then ...

Tan = Opposite/Adjacent

tan(58°) = BE/x

x = BE/tan(58°) = 100·sin(30°)/tan(58°)

x ≈ 31.243 . . . . units

_____

Comment on the figure

The intermediate problem in creating the figure was to locate point D. That was accomplished by locating point C on a line at an angle of 58° CCW from the horizontal, using point B as a center. Then D is the intersection of BC with the x-axis. BE is drawn perpendicular to the x-axis.