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3 years ago

The equation tan55• = 15/b can be used to find the length of AC what is the length of AC round to the nearest tenth

Mathematics

1 answer:

valentinak56 [21]3 years ago

4 0

Answer:

Step-by-step explanation:

b=15/(tan(55°))

b=10.5

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The "Garbage Project" at the University of Arizona reports that the amount of paper discarded by households per week is normally

likoan [24]

Answer: Pr= 42.9%

Step-by-step explanation:

SD = 4.2

Mean = 9.4

That is data are distributed between 9.4+/-4.2

Which is between 5.2 - 13.6

Probability of at least 10lb is given by;

Pr= 13.6-10 / 13.6-5.2

Pr= 3.6/ 8.4

Pr= 0.4286× 100%

Pr= 42.9%

4 0

4 years ago

Read 2 more answers

HELP PLEASE FAST ILL MARK BRAINLIEST IF CORRECT 20 points!!

kumpel [21]

Answer:

8.49

Step-by-step explanation:

6^2 + 6^2 = 72

√72 = 8.485... = 8.49

3 0

3 years ago

Ken has a total of 74 notes. They are either $2 or $5 notes. He has 16 more pieces of $5 notes than $2 notes. Find the total val

Anton [14]

Answer:

$283

Step-by-step explanation:

Let,

x - for $2 notes

x + 16 - for $5 notes

EQUATION:

(x) + (x + 16) = 74

2x = 74 - 16

2x = 58

x = 29

SUBSTITUTE

x = 29 pieces of $2 notes

x + 16 = 29 + 16 = 45 pieces of $5 notes

TOTAL VALUE IS:

(29 x $2) + (45 x $5) = $283

5 0

2 years ago

What is 39% of $57.30

Anit [1.1K]

Answer:

22.347 or 22.35

Step-by-step explanation:

3 0

3 years ago

One number is 2 more than 3 times another. Their sum is 22. Find the numbers.

ivolga24 [154]

Make a system of equations.

$\sf~x=3y+2$
$\sf~x+y=22$

Re-arrange the 2nd equation:

$\sf~x+y=22$

Subtract y to both sides:

$\sf~x=-y+22$

Plug in -y + 22 for 'x' in the first equation.

$\sf~x=3y+2$

$\sf~-y+22=3y+2$

Subtract 3y to both sides:

$\sf~-4y+22=2$

Subtract 22 to both sides:

$\sf~-4y=-20$

Divide -4 to both sides:

$\sf~y=\boxed{\sf5}$

Plug this into any of the two equations to find 'x':

$\sf~x+y=22$

$\sf~x+5=22$

Subtract 5 to both sides:

$\sf~x=\boxed{\sf17}$

So one of the numbers is 5 and one of them is 17.

6 0

3 years ago