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xenn [34]
3 years ago
14

Solve the following for the variable: 15x−3=2

Mathematics
2 answers:
JulsSmile [24]3 years ago
8 0

Answer:

15x3= - 3 =2

Step-by-step explanation:

vekshin13 years ago
6 0

Hello!!!

↓↓

15x-3+3=2+3\\\\12x=5\\\\\frac{15x}{15}\frac{5}{15}  \\\\x=\frac{1}{3}

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Find the area, in square feet, of a triangle whose base is 42⁄3 feet and whose altitude is 84⁄7 feet. A. 135⁄21 B. 20 C. 40 D. 2
CaHeK987 [17]

Answer:

Option B. 20\ ft^{2}

Step-by-step explanation:

we know that

The area of a triangle is equal to

A=\frac{1}{2}bh

we have

b=4\frac{2}{3}\ ft

h=8\frac{4}{7}\ ft

Convert mixed numbers to an improper fractions

b=4\frac{2}{3}\ ft=\frac{4*3+2}{3}=\frac{14}{3}\ ft

h=8\frac{4}{7}\ ft=\frac{8*7+4}{7}=\frac{60}{7}\ ft

substitute the values

A=\frac{1}{2}(\frac{14}{3})(\frac{60}{7})\\ \\A=\frac{14*60}{2*3*7}\\ \\A=\frac{840}{42} \\ \\A=20\ ft^{2}

5 0
3 years ago
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IrinaVladis [17]

Answer:

1.50x=18

Step-by-step explanation:

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3 0
3 years ago
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Three lizards eat 63 grams of food each day. How many grams of food would you expect 5 lizards to eat
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3 years ago
Determine whether f(x) = –5x^2 – 10x + 6 has a maximum or a minimum value.
Blizzard [7]

First,

We are dealing with parabola since the equation has a form of,

y=ax^2+bx+c

Here the vertex of an up - down facing parabola has a form of,

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The parameters we have are,

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Plug in the x_v into the equation,

y_v=-5(-1)^2-10(-1)+6=11

We now got a point parabola vertex with coordinates,

(x_v, y_v)\Longrightarrow(-1,11)

From here we emerge two rules:

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So our vertex is minimum value since,

a=-5\Longleftrightarrow a

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r3t40

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