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yaroslaw [1]
3 years ago
15

X divided by -1.5 = 21

Mathematics
1 answer:
sasho [114]3 years ago
4 0

<u><em>x=-31.5 or x=-32.0 is the right answer.  </em></u> First you had to multiply by -1.5 from both sides of equation. And it gave us, \frac{x(-1.5)}{-1.5}=21(-1.5). And finally simplify, and it gave us the answer is x=-31.5. You can also round up to the nearest tenths is x=-32.0. Hope this helps! And thank you for posting your question at here on brainly, and have a great day. -Charlie

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one angle of a triangle measures 120 degrees. the other two angles are congruent. write and solve an equation to find the measur
Bogdan [553]
The three angles of a triangle always add to 180, do the 2 congruent angles must measure 180-120=60. this number must be divided in two since the angles are congruent, so 60/2=30. [email protected], as needed. so the equation to find x, the size of the congruent angles, would be

x=(180-120)/2
3 0
3 years ago
Use the drawing tool(s) to form the correct answer on the provided number line.
miskamm [114]

Answer:

x= 1, x= 4, and x= -3

Step-by-step explanation:

Use the possible combinations of factors of the constant term of the polynomial to find a first root. Try 1, -1, 2, -2, 3, -3, etc.

Notice in particular that x = 1 is a root (makes f(1) = 0):

f(1)=x^3-2*1^2-11*1+12=1-2-11+12=13-13=0

So we know that x=1 is a root, and therefore, the binomial (x-1) must divide the original polynomial exactly.

As we perform the division, we find that the remainder of it is zero (perfect division) and the quotient is: x^2-x-12

This is now a quadratic expression for which we can find its factor form:

x^2-x-12=x^2-4x+3x-12=x(x-4)+3(x-4)=(x-4)*(x+3)

From the factors we just found, we conclude that x intercepts (zeroes) of the original polynomial are those x-values for which each of the factors: (x-1), (x-4) and (x+3) give zero. That is, the values x= 1, x= 4, and x= -3. (these are the roots of the polynomial.

Mark these values on the number line as requested.

7 0
3 years ago
A. Only sequence A<br> B. Only sequence B<br> C. Both<br> D. Neither<br> 30 POINTS OMG
Phoenix [80]
B. Only Sequence B

The one with the reflection over the line HI and then the 6 unit translation to the right
7 0
3 years ago
Read 2 more answers
the length of a rectangle is 6 meters less than twice the width. The area of the rectangle is 140m². Find the dimensions of the
AveGali [126]

Answer:

Here's what we know:

A = Lw (Area is length times width)

L = 2w + 6 (length is twice the width plus 6)

A = 140 (Area is 140 m2)

Plug in the variable values:

140 = w(2w + 6)

Distribute:

140 = 2w2 + 6w

Subtract 140:

2w2 + 6w - 140 = 0

Factor out a 2:

2(w2 + 3w - 70) = 0

Divide both sides by 2:

w2 + 3w - 70 = 0

(w + m)(w - n)

When we factor out the quadratic, we know it's going to be a +/- situation because the c value in the quadratic is negative, and the two numbers are going to be three away, the plus next to the 3 meaning that the larger number is going to be positive:

(w + 10)(w - 7) = 0

w = -10, 7

We can't have a negative length, so we can toss out the -10, leaving us with w = 7 meters.

L = 2 * 7 + 6

L = 14 + 6

L = 20

Check:

140 = 20 * 7

140 = 140

8 0
3 years ago
Read 2 more answers
2x5x1742x2133+12/4= PlS hellllp
Fynjy0 [20]

Answer:

37,156,863

Step-by-step explanation:

2 x 5 x 1742 x 2133 + 12/4 =

10 x 1742 x 2133 +12/4 =

17420 x 2133 + 3=

37,156,860 + 3 =

37,156,863

8 0
3 years ago
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