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3 years ago

5x + 9x if x =3 solve this expressioon

1 answer:

3 0

The answer is actually 42. Not 20.

You replace each x with 3

5(3)+9(3)

That 3 right next to the five means you multiply not add.

15+27=42

Brainliest my answer if it helps you out?

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Please help will give brainliest

garri49 [273]

Answer:

$b = 17$

Step-by-step explanation:

For this triangle we have to

$a=18.2\\B=62\°\\C=48\°$

We want to find the length of b

We know that the sum of the internal angles of a triangle is 180 °

$A + 62 +48=180\\\\A=180-62-48\\\\A=70\°$

Now we use the sine theorem to find the length of b:

$\frac{sin(A)}{a}=\frac{sin(B)}{b}=\frac{sin(C)}{c}$

Then:

$\frac{sin(A)}{a}=\frac{sin(B)}{b}\\\\b=\frac{sin(B)}{\frac{sin(A)}{a}}\\\\b=a*\frac{sin(B)}{sin(A)}\\\\b=(18.2)\frac{sin(62)}{sin(70)}\\\\b=17$

5 0

3 years ago

Check image giving brainliest to first correct answer

Snowcat [4.5K]

Answer:

7

Step-by-step explanation:

So:a=3

b=(-2)

c=2

Substitute the numbers into each letters

so a is represented by 3,c by 2 and b -2

therefore giving us: 2

3+(-2)=9+(-2)=7

7 0

2 years ago

I will give brainliest. I need help ASAP.

Tamiku [17]

Answer:

\I got not answer cause im da BUDDHA

But gimme brainliest squekky plssss

4 0

2 years ago

What is the value of x? • 7 • 7√2 • 14 • 14√2

MakcuM [25]

Answer:

Step-by-step explanation:

Look at the picture.

We have the triangle 45° - 45° - 90°. The sides are in ratio 1 : 1 : √2.

Therefore we have the equation:

$x\sqrt2=7\sqrt2\qquad\text{divide both sides by}\ \sqrt2\\\\x=7$

7 0

2 years ago

A standard deck of 52 playing cards consists of four suits (hearts, spades, diamonds and clubs). Spades and clubs are black whil

Mila [183]

Answer: Hello there!

in a deck of 52 cards, you have 26 red cards and 4 kings, where 2 kings are also red cards, so we could discard them.

We want to know the probability of drawing a red card or a king whem we draw at random, then all the cards have the same probability. This is the quotient between the number of red cards or kings and the total number of cards:

p = 26/52 + 2/52 = 28/52 = 0.48

then you have a 0.48 (or 48%) probability to get a red card or a king.

3 0

2 years ago