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cupoosta [38]
3 years ago
6

Plz help loves i need

Mathematics
2 answers:
Ratling [72]3 years ago
5 0

Answer:

It's the letter B :)

inn [45]3 years ago
4 0
B…..I believe……hope it helps
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The dinner check was $78.00.<br>If Erin leaves a 20% tip, how<br>much will the tip be?​
jenyasd209 [6]

Answer:

Step-by-step explanation:

Just calculate 20% of 78.00 or 78.00x0.20=$15.6

8 0
3 years ago
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se quiere pintar una pared en forma de hexágono regular y se sabe que cada lado mide 3m y que su apotema es de 2,8m cual es el a
qwelly [4]

Answer:

El área total a pintar será:

A_{tot}=25.2\: m^{2}

Step-by-step explanation:

Sabiendo el apotema y la longitu de los lados, podemos encontrar el área de un triangulo. Recordemos que, si trazamos rectas del centro del hexágono a los vértices, se formaran 6 triángulos equiláteros.

El área de un triángulo es:

A_{t1}=\frac{b*a}{2}

b es la longitud de la base (b=3 m)

a es la apotema, osea la altura del triangulo (a = 2.8)

A_{t1}=\frac{2.8*3}{2}

A_{t1}=4.2\: m^{2}

Ahora, solo debemos mutiplicar ese valor por 6 para determianr el área total de la pared.

A_{tot}=25.2\: m^{2}

Espero te haya sido util!

5 0
3 years ago
Solve for x.
kirill115 [55]

How to get answer:

Expand -2\left(x+13\right)+9x:\quad 7x-26\\Expand -2\left(x+13\right):\quad -2x-26\\\\=-2x-26+9x\\Simplify -2x-26+9x:\quad 7x-26\\7x-26=4\\\mathrm{Add\:}26\mathrm{\:to\:both\:sides}\\7x-26+26=4+26\\\mathrm{Simplify}\\7x=30\\\\\mathrm{Divide\:both\:sides\:by\:}7\\\frac{7x}{7}=\frac{30}{7}\\Simplify\\x=\frac{30}{7}

7 0
3 years ago
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How can $54,000 be invested part at 8% annual simple Interest and the remainder at 10% annual simple interest so that the intere
Nastasia [14]

Answer:

0.08x = $5400-0.1x Add 0.1x to both sides of the equation.

0.18x = $5400 Divide both sides by 0.18

x = $3000 and $54000-$3000 = $24000

$3,000 is invested at 8%

$2,400 is invested at 10%

Step-by-step explanation:

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4 years ago
What was the date the declaration of independence signed?​
Sonbull [250]

Answer:

July 4, 1776 lol

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