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3 years ago

Which is an advantage of using equations for solving problems?

Mathematics

2 answers:

SashulF [63]3 years ago

7 0

I think it’s D
Hope this helps y’all

Arisa [49]3 years ago

4 0

Answer:

D.Every problem needs an equation in order to be able to solve it

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-4x - 3 = -6x + 9 need help please.

Valentin [98]

Answer:

Step-by-step explanation:

-4x -3 = -6x +9

-4x = -6x +12

2X = 12

x = 6

8 0

3 years ago

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Help meeeeeee its all due toad

solniwko [45]

Well, the answer would bee 1/10 for a simple reason: the 3 in 7.315 is in the tenth's spot while the 3 in 893.5 is in the ones. a one spot different that can be proven with logic.

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3 years ago

Three red rods are 2cm longer than two blue rods. Three blue rods are 2cm longer than four red rods. How long is each rod?

nydimaria [60]

Answer:

The length of each red rod is 10 cm and the length of each blue rod is 14 cm

Step-by-step explanation:

Let

x ----> the length of each red rod in centimeters

y ----> the length of each blue rod in centimeters

we know that

$3x=2y+2$ ----> equation A

$3y=4x+2$ ----> equation B

Solve the system by graphing

Remember that the solution of the system of equations is the intersection point both graphs

using a graphing tool

The solution is the point (10,14)

see the attached figure

therefore

The length of each red rod is 10 cm and the length of each blue rod is 14 cm

4 0

3 years ago

Match the part of the circle with the term that best describes it.

nordsb [41]

GH: chord
M: point of tangency
MJ: diameter
J: center
MH: radius
GH: secant

6 0

2 years ago

A circle has a radius that is 4 centimeters long. If a central angle has a measure of 3 radians, what is the length of the arc t

kirill115 [55]

The total length of the circle is calculated by the following formula:

Lenght = 2.π.r

As r = 4c

Then,

Lenght = 2.π.4

Lenght = 8π centimetrs

Now use the rule of 3

But we have to know:

...<..> ...

Then,

8π ________ 2π <= 360°

x ________ 3π

2π . x = 8π . 3π

x = (8π . 3π) / 2π

x = (8 . 3π)/ 2

x = 12π centimenters

x ~ 37,69 c

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3 years ago

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