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andrey2020 [161]
3 years ago
10

Find the sum or difference (2c-4)+(5c+11)

Mathematics
1 answer:
laiz [17]3 years ago
7 0
Remove parentheses
2c - 4 + 5c + 11
Combine like terms
Answer: 7c + 7
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You ran for 25 minutes and burned 220 calories. How many calories did you burn per minute?
Bezzdna [24]

Answer:

8.8, you have to do long devision

Step-by-step explanation:

Hope this helps!

3 0
2 years ago
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3(5+6) ??? its distributive property
kaheart [24]
Yes, we apply the distributive property to simplify this expression.

3*5 = 15
6*3 = 18

15 + 18 is the final answer.
4 0
3 years ago
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9. Find the area of the figure to the right.<br> area<br> 14 in
zlopas [31]

Answer:

1. 200 in.^2

2.

Step-by-step explanation:

1. Area of a trapezium=1/2(a+b)height

a=14 in.

b=20 in.+6 in. = 26 in.

height= ?

height can be gotten by using

formula : Soh Cah Toa

Toa is tangent∆= opposite/ adjacent

∆ = 60°

opp=? adj=6 in.

Tan 60° =opp/6 in.

Tan 60° = 1.732

1.732= opp/ 6 in.

opp=1.732*6 in.

opp = 10.392 approximately= 10 in.

Area of trapezium= 1/2*(14+26)*10(in.^2)

Area of trapezium= 1/2*40*10

= 1/2*400

= 200 in.^2 .

2. Area of triangle= 1/2* base* height

for first triangle =

base=4m

height =15m

Area: 1/2*4*15 ,1/2*60= 30m^2

second triangle =

base:?

height: 15m

using Pythagorean theorem;

hyp^2 = opposite ^2 + adjacent ^2

17^2 = 15^2 + adj^2

289= 225 + adj^2

adj^2 = 289-225= 64

square root

adj = 8m

area of second triangle : 1/2*8*15

: 1/2*120 :60m^2

total area: 30 m^2 +60m^2

==90 m^2

8 0
3 years ago
If c+1/d=5 , what is the value of 30d/2c+2
klemol [59]

Answer:

3

d\in R,\hspace{5}d\neq 0

Step-by-step explanation:

You can solve for any variable. From the first equation, let's solve for c :

\frac{c+1}{d} =5\\\\c+1=5d\\\\c=5d-1

Now, replace the value of c into the other equation:

\frac{30d}{2c+2} \\\\\frac{30d}{2(5d-1)+2} \\

Using distributive property

\frac{30d}{10d-2+2} =\frac{30d}{10d} =3

However, keep in mind that this is true for:

d\in R,\hspace{5}d\neq 0

8 0
3 years ago
What is slope intercept form?​
Leokris [45]

Answer: y=mx+b

Step-by-step explanation:

7 0
2 years ago
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