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3 years ago

25points -3(b+19)=-12 What does b=

1 answer:

6 0

What we're dealing with is the Distributive Property. This allows any number/variable outside of a parenthesis to multiply by all numbers/variables inside of the parenthesis.

For example:

2(1 + 3)
2(1) + 2(3)
2 + 6
8.

Now that we've broken down what we're dealing with, let's try to solve.

-3(b + 19) = -12
-3(b) + -3(19) = -12
-3b -57 = -12
Add 57 to both sides to get -3b by itself.
-57 + 57 = 0
-12 + 57 = 45

-3b = 45
Divide both sides by -3 to solve for b.

-3b / -3 = b
45 / -3 = -15

b = -15

I hope this helps! PM me if you need help understanding.

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PLZ HURRY IT'S URGENT!!!!!!!!

olga2289 [7]

Let's solve your equation step-by-step.

6+2s−8s=18

Step 1: Simplify both sides of the equation.

6+2s−8s=18

6+2s+−8s=18

(2s+−8s)+(6)=18(Combine Like Terms)

−6s+6=18

Step 2: Subtract 6 from both sides.

−6s+6−6=18−6

−6s=12

Step 3: Divide both sides by -6.

−6s/−6

=12/−6

s=−2

Answer:

s=−2

3 0

4 years ago

Read 2 more answers

Determine whether the points lie on straight line.

wel

Answer:

A) Non-collinear- does not lies on straight line

B) Collinear- lie on straight line

Step-by-step explanation:

We have to check collinearity of three points.

The points $(x_1, y_1, z_1),(x_2, y_2, z_2),(x_3, y_3, z_3)$ are said to be collinear if,

$\left[\begin{array}{ccc}x_1&y_1&z_1\\x_2&y_2&z_2\\x_3&y_3&z_3\end{array}\right] = 0$

A) A(2, 5, 3), B(3, 7, 1), C(1, 4, 4)

$\left[\begin{array}{ccc}2&5&3\\3&7&1\\1&4&4\end{array}\right] \\\\=2(28-4)-5(12-1)+3(12-7)\\= 8 \neq 0$

Thus, the given points are not collinear.

B) D(0,-5,5), E(1,-2,4), F(3,4,2)

$\left[\begin{array}{ccc}0&-5&5\\1&-2&4\\3&4&2\end{array}\right] \\\\=0(-4-16)+5(2-12)+5(4+6)\\=0$

Thus, the given points are collinear.

6 0

3 years ago

13. Vacation Kate is saving for a vacation in the Bahamas. On January 1,

jeyben [28]

Answer:

I tried P as the Principle invested: 750, i, as the interest rate per compounding period = 8.2/100 = 0.082 n, number of compounding periods = 2, and t, time is 6 (6 months before July 1 from January 1?) Because I got 1931.03 and it's wrong:

Step-by-step explanation:

4 0

2 years ago

Which trig ratio would you use to solve this?

mel-nik [20]

Answer:

Cosine

Step-by-step explanation:

sine = soh=o/h

cos=cah=a/h

tangent=toa=o/a

If you look at right triangle the slanted line is the hypothese. it will always be. so thats h. the adjacent is the line connected the the angle you are looking for. and opposite is the line thats away from the angle.

8 0

3 years ago

Could someone please help me pleasee

Alinara [238K]

Answer:

Color where I put the dots (picture attached).

Step-by-step explanation:

Hope this helps/is correct.

Please don't be mad if it's wrong, this is simply what I understood from the instructions. :)

PS. You don't have to copy the line, that's just for you to get an idea.

8 0

3 years ago