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4 years ago

Solve the absolute value equation,if possible.If there is no solution,explain why. |5x+13|=-7

Mathematics

1 answer:

SOVA2 [1]4 years ago

4 0

Answer:

Step-by-step explanation:

There is nothing you could put into the brackets that will give you a negative answer. We should just graph this to see if that is true or not. Graphs are the last word in this kind of question.

See below.

The graph is the first part: y = |5x +7|

It is the red graph.

The second line of interest is y = - 7. It is blue.

Do you see that these two graphs do not intersect?

Because they don't, there is no solution. Any marker will accept this explanation and the graph. You should be fine with just this much.

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I need a lot of help if someone can help me I can give a lot of points

Len [333]

Answer:

-3

Step-by-step explanation:

when y = 0

x = -3

8 0

3 years ago

Could someone please help. The given sides are 25 at the left, 35 at bottoms, 5 at the right. Thank you :)

NeTakaya

Answer:

120 cm

Step-by-step explanation:

If you rearrange the lines you will get a rectangle whose sides are 25 cm and 35 cm.

To get a triangle, move the lines inside the rectangle keeping them parallel to the lines in front of them.

Let P the perimeter of the rectangle:

P = 25*2 + 35*2 = 50+70 = 120 cm

6 0

4 years ago

Guys please help! In triangle CDE, the measure of angle C is 90 degrees, side CD is 15 and DE is 3 more than CE. Find the length

AURORKA [14]

You can calculate it using the law of cosines: c^2=a^2+b^2-2*a*b*cos(C)

your triangle is
CD=15=a
CE=?=b
DE=CE+3=b+3=c
and C=90°

-> insert those values, with c substituted with b+3 to remove c

c^2=a^2+b^2-2*a*b*cos(C)
(b+3)^2=15^2+b^2-2*15*b*cos(90)
cos(90)=0->
(b+3)^2=15^2+b^2
b^2+2*3*b+3^2=225+b^2
6b+9=225
6b=216
b=36=CE

DE=CE+3=36+3=39

4 0

4 years ago

Find the sum<br> 3/4 + 1/2=

Angelina_Jolie [31]

Answer: 3/4+1/2= 1¼

Step-by-step explanation:

1/2= 2/4 3/4+2/4=1¼

7 0

3 years ago

Which of the following relations is a function?

LiRa [457]

Answer:

Step-by-step explanation:

C. (-7, 2), (-1, 3), (4,7), (7,2)

The values of x are not repeating, so this is a function, because for every x has only one corresponding value of y.

7 0

3 years ago