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3 years ago

17. Solve for x. * 21x + 5 40° 13.r + 5

Mathematics

1 answer:

Svet_ta [14]3 years ago

6 0

Answer:

first =−0.203

second =1.369

Step-by-step explanation:

Another Answer is Futile

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When simplified, what is the value of square root of negative 45 end square root,if i2 = −1?

Schach [20]

Answer:
√-45
i√45
i√9 * √5
3i√5

7 0

3 years ago

Can somebody help me on 23 and 24, it’s geometry

Luda [366]

Question 23:

x = 4

DE = 44

Question 24:

x = 25

SE = 28

Step-by-step explanation:

As RS is the perpendicular bisector of DE, it will divide DE in two equal parts DS and SE

Question number 23:

Given

DS = 3x+10

SE = 6x-2

As the two segments are equal:

$DS = SE\\3x+10 = 6x-2$

Subtracting 10 from both sides

$3x+10-10 = 6x-2-10\\3x = 6x-12$

subtracting 6x from both sides

$3x -6x = 6x-6x-12\\-3x = -12$

Dividing both sides by -3

$\frac{-3x}{-3} = \frac{-12}{-3}\\x = 4$

Now

$DS = 3x+10\\= 3(4)+10\\= 12+10\\=22$

And

$SE = 6x-2\\= 6(4)-2\\= 24 - 2\\=22\\DE = DS+SE\\= 22+22\\=44$

Question No 24:

Given

DS = x+3

DE = 56

We know that:

$DS = \frac{1}{2}DE\\x+3 = \frac{56}{2}\\x + 3 = 28\\x = 28-3\\x = 25$

DS = $25+3 = 28$

As DS is 28, SE will also be 28

Hence,

Question 23:

x = 4

DE = 44

Question 24:

x = 25

SE = 28

Keywords: Bisector, Line segment

Learn more about line segments at:

#LearnwithBrainly

4 0

3 years ago

7) Original price: ? Discount: 25% Sale price: $28

Studentka2010 [4]

Answer:

Step-by-step explanation:

let be x the price before the discount

original price= 28/(1-0.25)=28/0.75=37.33

original price=37.33

3 0

3 years ago

Read 2 more answers

Simplify 4x+2 - x^2 +x-12 / x-3 a) 3x-2 b)3x+4 c)5x-4 d)5x+4

Ostrovityanka [42]

Hello

The asnwer is C.

Have a nice day

3 0

3 years ago

Read 2 more answers

Pls who knows how to do this? Make it correct just by adding one line 5+5+5=550

Feliz [49]

the answer shows in the picture

6 0

3 years ago