All categories

2 years ago

Help asap. i give brainlist is my last chance

Mathematics

1 answer:

makvit [3.9K]2 years ago

3 0

D 2x + 28 = 48

because x + x + 14 + 14 equals the perimeter which is 48

You might be interested in

Determine both the x and y intercepts. Please help! Will mark brainliest!

Mademuasel [1]

Answer:

y-intercept: (0, 2.5)

x-intercept: (1.67, 0)

Step-by-step explanation:

Right now, you have 3x + 2y = 5. You want to change it into slope-intercept form to make the problem easier to solve.

2y = -3x + 5

y = -3/2x + 5/2

From here, you can see that the y-intercept is (0, 5/2). You can also say that the y-intercept is (0, 2.5).

To get the x-intercept, substitute 0 for y.

0 = -3/2x + 5/2

3/2x = 5/2

3x = 5

x = 5/3

So, the x-intercept is (5/3, 0). You can also say that the x-intercept is (1.67, 0).

Hope this helps!

3 0

3 years ago

Read 2 more answers

Ahhhh i need help again.

qwelly [4]

Answer:

Step-by-step explanation:

A. these simply to 21 + 7x and 21 + 3x

this one is incorrect because the 7x and 3x are different

B. these simplify to 10 + x and 10 + x

this is the correct one since they are exactly the same

C. these simplify to 21x and 7x + 21

these two are not the same because one expression has only a number with a variable but the other one has a number with a variable <em>and </em>another number

D. these simplify to $\frac{7}{3-x}$ and $\frac{7}{x-3}$

in subtraction, the order of the 3 and the x matters, so the equations are not the same
example: 6 - 4 = 2 but 4 - 6 = -2

3 0

2 years ago

2x + 3 + 4x + 8 = 3x - 10

vodomira [7]

$\text {Hello! Let's solve this Equation!}$

$\text {Your First Step is to Simplify the Equation:}$

$\text {(2x+4x)+(8+3)}$

$\text {6x+11=3x-10}$

$\text {The Next Step is to Subtract 3x:}$

$\text {6x+11-3x=3x-10-3x}\\\text {3x+11=-10}$

$\text {Next Step is to Subtract 11:}$

$\text {Q: Why Subtract 11?}$

$\text {A: So they cancel out. We cross them out once we subtract.}$

$\text {3x+11-11=-10-11}\\\text {3x=-21}$

$\text {The Final Step is to Divide 3:}$

$\text {3x/3=-21/3}$

$\text {Your Answer will be}$

$\fbox {x=-7}$

$\text {Best of Luck!}$

$\text {-LimitedX}$

8 0

2 years ago

I have 3 questions.

mote1985 [20]

Similar triangles are scales drawing of one another is true, what is the slope of this equations is undefined, to what line equation does the points are solution of sets are,35 the answer

8 0

2 years ago

A triangular prism has bases with three congruent sides, each measuring 4 feet. the height of each triangle is approximately 3.5

irga5000 [103]

It is 84 feet or 84 square feet

6 0

2 years ago

Read 2 more answers