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NikAS [45]
3 years ago
15

20 points!!!!! Please help!!!

Mathematics
1 answer:
Stells [14]3 years ago
8 0

Answer:I belive the asnswer is D but i would get a second vote here

Step-by-step explanation:

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Math test! i need help!
madreJ [45]

Answer:

i think it's the first option

Step-by-step explanation:

i am so sorry if im wrong

5 0
2 years ago
Read 2 more answers
X^2-4X+??=(X-??)^2? Complete the square to form a true equation
tatiyna
To complete the square you need to halve the linear coefficient -4/2, square it, 4, and add that value, giving you:

x^2-4x+4  and that is a perfect square equal to:

(x-2)^2
6 0
3 years ago
Helpppppppp here plz
miv72 [106K]

Answer:

x + x+12 + 3(x+12) = 123

x = 15

Step-by-step explanation:

Jamil : x

Kiera : x+12

Luther : 3 ( x+12)

x + x+12 + 3(x+12) = 123

Distribute

x + x+12 + 3x+36 = 123

Combine like terms

5x+ 48 = 123

Subtract 48 from each side

5x+48-48 = 123-48

5x =75

Divide by 5

5x/5 = 75/5

x = 15

7 0
3 years ago
Read 2 more answers
What is the value of n?
jonny [76]
Since the angle altogether is 180°
You just need to subtract 28 and 48 from 180
28+48=76
180-76=104

Answer: 104°

Hope this helps!! <3
6 0
4 years ago
DETERMINA EL VOLUMEN DE UN PRISMA PENTAGONAL QUE TIENE LAS SIGUIENTES MEDIDAS: LADO 6.1 CM, APOTEMA 4.5, ALTURA 12.5CM DEL PRISM
Anna71 [15]

Answer:

837.23 cm³

Step-by-step explanation:

La fórmula para el volumen de un prisma pentagonal se da como:

1/2 (5 s × a) × h

Dónde:

s = longitud lateral

a = Apotema

h = altura

De la pregunta anterior:

s = largo de lado = 6.1 cm

a = Apotema = 4.5 cm

h = Altura = 12.5 cm

Por lo tanto:

El volumen del prisma pentagonal =

1/2 (5 × 6.1 × 4.5) × 12.5

= 1/2 × 137.25 × 12.5

= 837.225 cm³

Aproximadamente = 837.23 cm³

4 0
3 years ago
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