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4 years ago

Pls urgently answer

Mathematics

1 answer:

adoni [48]4 years ago

6 0

Answer:

this is hard so ima go with [2/-2] [-2/2] [1/-1] [-3/3]

Step-by-step explanation:

cause ordered pairs have a negative and a positive with same number

ya YEET fellow peep (╯°□°）╯︵ ┻━┻

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(2x^2+7+10)-(x^2+2x-9)

svlad2 [7]

Step-by-step explanation:

$2 {x}^{2} + 7 + 10 - ( {x}^{2} + 2x - 9) \\ 2 {x}^{2} + 7 + 10 - {x }^{2} - 2x + 9 \\ {x}^{2} - 2x + 26$

6 0

3 years ago

What number must be added to the expression below to complete the square x^2+8x-5=15

Rasek [7]

Answer:

Add 16 to both sides.

General Formulas and Concepts:

Pre-Alg

Equality Properties

Algebra I

Completing the Square: b/2a

Step-by-step explanation:

Step 1: Define expression

x² + 8x - 5 = 15

Step 2: Solve

Isolate x terms: x² + 8x = 20
Complete the Square: (x² + 8x + 16) = 20 + 16
Simplify: (x + 4)² = 36

5 0

3 years ago

Please just give me the number answer no equation

joja [24]

13 cm

Explanation:-

I'm not so sure, but I hope this is the answer.

Given, SR=39cm

To find WX

As WX is parallel to Sr, WX is half of SR

$→ WX = \frac{39}{2}$

$→WX = 13cm$

8 0

2 years ago

Math help can’t solve please

frez [133]

Answer:

See below

Step-by-step explanation:

a) 43.8 - 38 = 5.8 yrs

b) SD = 8.9 yrs 5.8 / 8.9 = .6517 SD below the mean

(A z score merely shows how many standard deviations a score (age) is above or below the mean in SD units)

c) Z = - .6517 Negative because it is BELOW the mean ( FYI from z-score table: this is .2578 in percentage )

d) usual ( it (-.6517) is between -2 and + 2 )

7 0

2 years ago

Find m<LMN if m<LMT=23 degree and m<TMN=144 degree

rodikova [14]

Answer:

∠LMN = 167°

Step-by-step explanation:

∠LMT = 23°

∠TMN = 144°

∠LMN = ∠LMT + ∠TMN

∠LMN = 23° + 144°

∠LMN = 167°

5 0

3 years ago