All categories

3 years ago

-2 (3 x -3) solve this equation

Mathematics

2 answers:

shepuryov [24]3 years ago

7 0

Answer:

Step-by-step explanation:

(3 x -3) equals -9, -9 x -2 equals 18 since the negatives cancel each other out.

natali 33 [55]3 years ago

5 0

Answer:

Step-by-step explanation:

-2 x 3x - 2 x (-3)

-6x-2 x (-3)

-6x +6

You might be interested in

Simple easy question please help ASAP will mark brainliest! Hector is competing in a 42- mile bicycle race. He has already compl

olganol [36]

Answer and Explanation: The answer and explanation is in the image.

4 0

2 years ago

State three numbers that are solutions to the inequality X+1<(with the bar under the greater than sign). 5 please need help!!

Anna007 [38]

I’m pretty sure, bc x is less than or equaled to 4, then since it is maybe equaled to, you can also use that one, then another one is that x is less than four....

7 0

3 years ago

Forensic specialists can estimate the height of a deceased person from the lengths of the person's bones. These lengths are subs

Lera25 [3.4K]

Answer:

$130.2845\leq h\leq 137.7245$

Step-by-step explanation:

Given an inequality that relates the height h, in centimeters, of an adult female and the length f, in centimeters, of her femur by the equation

$|h - (2.47f + 54.10)| \leq 3.72$

If an adult female measures her femur as 32.25 centimeters, we can determine the possible range of her height by plugging f = 32.25cm into the modelled equation as shown:

$|h - (2.47(32.25) + 54.10)| \leq 3.72\\|h - (79.9045 + 54.10)| \leq 3.72\\|h - (134.0045)| \leq 3.72\\$

If the modulus function is positive then:

$h - 134.0045 \leq 3.72\\h \leq 3.71+134.0045\\h\leq 137.7245$

If the modulus function is negative then:

$-(h - 134.0045) \leq 3.72\\-h+134.0045 \leq 3.72\\-h\leq 3.72-134.0045\\-h\leq -130.2845\\$

multiply through by -1

$-(-h)\geq -(-130.2845)\\h\geq 130.2845\\130.2845\leq h$

combining the resulting inequalities, the estimate of the possible range of heights will be $130.2845\leq h\leq 137.7245$

8 0

3 years ago

Answer this please! Thanks

Alex17521 [72]

Answer:

no solution

Step-by-step explanation:

The solution to a system of equations is at the point of intersection of the 2 lines.

The lines are parallel and never intersect.

Tgus the system has no solution

3 0

2 years ago

There are white, blue, and red boats in a marina. Two-thirds of the boats in the marina are white, 4 7 of the remaining boats ar

Aleksandr-060686 [28]

Answer: the number of boats that are in the marina is 105.

Step-by-step explanation:

Let x represent the number of boats that are in the marina.

Two-thirds of the boats in the marina are white. It means that the number of white boats in the marina is

2/3 × x = 2x/3

The remaining number of boats will be

x - 2x/3 = x/3

4/7 of the remaining boats are blue. It means that the number of boats that are blue is

4/7 × x/3 = 4x/21

The number of boats left would be

x/3 - 4x/21 = 3x/21

If there are 15 red boats, it means that

3x/21 = 15

3x = 21 × 15 = 315

x = 315/3

x = 105

3 0

3 years ago