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Stels [109]
3 years ago
8

Expand 2x(5x-2) PLEASEEEEEEEE!!!!!!!!!!!!

Mathematics
2 answers:
Anika [276]3 years ago
8 0

Answer:

2x(5x-2) = 10(x^2) - 4x

PLEASE GIVE BRAINLIEST

gulaghasi [49]3 years ago
7 0

Answer:

1 0 2 − 4

Step-by-step explanation:

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Provide the reasons for the fol owing proof
Studentka2010 [4]

Answer:

Option d is correct.

Vertical angles are congruent;

SAS

Step-by-step explanation:

Given: JK \cong KL , NK \cong KM

In ΔNKJ and  ΔMLK

JK \cong KL and      [Side]                 {Given}

NK \cong KM      

Vertical angles states that the two lines intersect to make an X, angles on opposite sides of the X are called vertical angles.

i.e \angle NKJ and \angle MKL are vertical angles.

Also, vertical angles are congruent.

\angle NKJ \cong \angle MKL  [Angle]      [Vertical angles are congruent]

SAS(Side-Angle-Side) postulate states that if two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle, then the two triangles are congruent.

then, by SAS postulates;

\triangle NKJ \cong \triangle MLK          Hence proved!

Therefore:

Statement                                                                      Reason

1.  JK \cong KL, NK \cong KM           Given

2.  \angle NKJ \cong \angle MKL                 Vertical angles are congruent

3. \triangle NKJ \cong \triangle MLK             SAS

3 0
3 years ago
Read 2 more answers
8 A video game that usually costs $50 is on sale for $32.50
finlep [7]

The video game is on 35% discount.

Step-by-step explanation:

Cost of video game = $50

Price on sale = $32.50

Amount of discount = Original price - price on sale

Amount\ on\ discount = 50-32.50\\Amount\ on\ discount= \$17.5

Percentage = \frac{Dicount\ Price}{Original\ Price}*100

Percentage=\frac{17.5}{50}*100\\Percentage=\frac{1750}{50}\\Percenatge=35\%

The video game is on 35% discount.

Keywords: Percentage

Learn more about percentages at:

  • brainly.com/question/10364988
  • brainly.com/question/10435816

#LearnwithBrainly

6 0
3 years ago
1. Find the value of x<br> 37.5<br> 17<br> 52.5<br> a. 39.5<br> b. 75<br> c. 40<br> d. 42.5
Aleksandr-060686 [28]

Answer:

d

Step-by-step explanation:

The segment inside the triangle bisects the angle and divides the opposite sides into segments that are proportional to the other two sides, that is

\frac{x}{17} = \frac{37.5}{52.5-37.5} = \frac{37.5}{15} ( cross- multiply )

15x = 637.5 ( divide both sides by 15 )

x = 42.5 → d

3 0
3 years ago
. . Jane Hilman went to her bank. She had a balance of $1,009.88 in her savings account. She withdrew $130.00 and the teller cre
Studentka2010 [4]
The new balance on Jane Hilman's account is the answer when we add up all the previous balance, the credit, and the negative of the amount she withdrew. This gives us,
                new balance = $1009.88 + $6.19 - $130
The numerical answer to the equation above is $886.07. 
4 0
3 years ago
The square root of a2+1=2
user100 [1]
Remove the radical by raising each side to the index of the radical. a = √ 3 , − √ 3 a=3,-3 a ≈ 1.73205080 , − 1.73205080
7 0
4 years ago
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