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zlopas [31]
1 year ago
9

Determine the solutions of the equation:

Mathematics
1 answer:
jekas [21]1 year ago
3 0

The solutions of the equation are x = 15 and x = -20

<h3>How to determine the solutions of the equation?</h3>

The equation is given as:

the absolute value quantity two fifths times x plus 1 end quantity minus 7 equals 0

Rewrite the equation properly as:

|2/5x + 1| - 7 = 0

Add 7 to both sides

|2/5x + 1| = 7

Remove the absolute bracket

2/5x + 1 = 7 and 2/5x + 1 = -7

Subtract 1 from both sides

2/5x = 6  and 2/5x = -8

Solve for x

x = 15 and x = -20

Hence, the solutions of the equation are x = 15 and x = -20

Read more about absolute value at

brainly.com/question/1782403

#SPJ1

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Answer:

45 degrees

Step-by-step explanation:

Think of it like this the sum of the angles in a triangle are the always the same 180 degrees.

So now, we do 180 - 90 = 90 this is the sum of the other angles.

We shall assume that they are the same and divide 90/2 = 45 degrees each

Ok here are some things to understand while solving!

  • If three sides of one triangle are equal to three sides of another triangle, the triangles are congruent.
  • If two sides and the included angle of one triangle are equal to the corresponding sides and angle of another triangle, the triangles are congruent.
  • If two angles and the included side of one triangle are equal to the corresponding angles and side of another triangle, the triangles are congruent.
  • If two angles and the non-included side of one triangle are equal to the corresponding angles and side of another triangle, the triangles are congruent.
  • If the hypotenuse and one leg of one right-angled triangle are equal to the corresponding hypotenuse and leg of another right-angled triangle, the two triangles are congruent.
  • Without knowing at least one side, we can't be sure if two triangles are congruent. (which we do!)

Hope this helped!

Study hard!

5 0
3 years ago
Read 2 more answers
PLZ HURRY DIS IS TIMED !!!!
Bogdan [553]

Answer:

The 4-5

Step-by-step explanation:

8 0
3 years ago
I'll give brainliest if you show your work. Plz answer quickly.
Maslowich

Answer:

  C) In step 3, he should have determined which square is closest to 18.

Step-by-step explanation:

17.64 also rounds to 18. 17.64 differs from 18 by ...

  18 -17.64 = 0.36

whereas 18.49 differs from 18 by ...

  18.49 -18 = 0.49

Hence 17.64 is closer to 18 and we might expect 4.2 to be closer to √18 than is 4.3.

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The actual root of 18 is about 4.243, so 4.2 is a better approximation.

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To find the half way between the two number we do:
418,000-326,700=91,500←To find the difference between the two
91,500÷2=45,750←To find the half of the number
326,700+45,750=372,450←To find the number that is halfway
The number that is halfway between the two numbers is 372,450.
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D is the answer
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