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Romashka [77]
3 years ago
10

 f(x) = 3x + 10x and g(x) = 4x – 2, find (f – g)(x)

Mathematics
1 answer:
Nana76 [90]3 years ago
3 0
Doing f(x)-g(x), we have 3^x+10x-(4x-2)=3^x+10x-4x+2=3^x+6x+2=D
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Kelsey can buy 2 pounds of apples for 7$. Write an equation to represent the cost, c, for a, pounds of apples.
zmey [24]

\huge\boxed{c=3.5a}

First, we need to find how much a single pound of apples costs.

Do this by dividing.

\frac{\$7}{2\ \text{lbs.}}\div\frac{2}{2}=\frac{\$(7\div 2)}{(2\div 2)\ \text{lbs.}} = \frac{\boxed{\$3.50}}{1\ \text{lb.}}

Now, write an equation.

\large\boxed{c=3.5a}

This represents that the cost equals 3.5 times the number of apples.

8 0
3 years ago
Read 2 more answers
The circumference of the rhombus is 40 cm. Calculate the area of that rhombus if the height is 7cm.
LenKa [72]

Answer:

14

Step-by-step explanation:

8 0
3 years ago
The angle of elevation from an observer to the bottom edge of the Delaware River drawbridge observation deck located 200 feet fr
aleksklad [387]

The height of the chimney above the floor of the observation deck is 52.4 ft

Two right angle triangle will be formed.

<h3>Right angle triangle:</h3>

Right angle triangle are triangle that has one of its angle as 90 degrees.

Therefore, using trigonometric ratio,

adjacent side = distance of observer from the bottom edge of the Delaware River drawbridge observation deck

Therefore,

tan 40 = opposite / adjacent

Where

x = height of the observer to the top of the observation deck

tan 40 = x / 200

x = 200 tan 40

x = 167.819926235

x = 167.82 ft

tan 30 = opposite / adjacent

y = height of the observer to the bottom of the observation deck

tan 30 = y / 200

y = 200 tan 30

y = 115.470053838

y = 115.47 ft

The height of the chimney above the floor of the observation deck = height of the observer to the top of the observation deck - height of the observer to the bottom of the observation deck

The height of the chimney above the floor of the observation deck = 167.82 - 115.47 = 52.35 ft

learn more on trigonometric ratio here: brainly.com/question/23854119

5 0
2 years ago
(-23, – 8) and (722 -8)
Andre45 [30]

-51 and 714

Step-by-step explanation:

-23-38=-51

722-8=714

7 0
3 years ago
Someone please help me
Karo-lina-s [1.5K]
Area = 2 · (h · d + h · w + d · w)
area = 2 · (2 · 6 + 2 · 2 + 6 · 2)
area = 2 · (12 + 4 + 12)
area = 2 · (28)
area = 56

answer
s = 56 cm^2 (second choice)
3 0
3 years ago
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