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iogann1982 [59]
3 years ago
13

Find the sum of the given polynomials.

Mathematics
2 answers:
slega [8]3 years ago
6 0
Rearrange the equation for like terms:

7b - 4b <span>- 3b </span>+ 3 + 5  + 2

= 10
hammer [34]3 years ago
5 0

Answer:

10

Step-by-step explanation:

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the sum of three numbers is 81. the second number is twice the first, and the third number is six more than the second. find the
ElenaW [278]

Answer:

have you tried using math-way just with no -

Step-by-step explanation:

3 0
3 years ago
In triangle EFG, m of E = 30 degrees, m of F = 60 degrees, and m of G = 90 degrees. Which of the following statements about tria
Effectus [21]

Answer:

A. EG = √3 × FG

D. EG = √3/2 × EF

E. EF = 2 × FG

Step-by-step explanation:

∵ tan 60 = √3

∵ tan60 = EG/GF

∴ EG/GF = √3

∴ EG = √3 × GF ⇒ A

∵ m∠F = 60°

∵ sin60 = √3/2

∵ sin 60 = EG/EF

∴ √3/2 = EG/EF

∴ EG = √3/2 × EF ⇒ D

∵ cos60 = 1/2

∵ cos60 = GF/EF

∴ GF/EF = 1/2

∴ EF = 2 × GF ⇒ E

8 0
3 years ago
Read 2 more answers
21. A man's income is increased in the ratio 47:40. Find the increase percentage. hok= 2:5. x.y =3:4 and 2h+x:(+2y = 1:2. find t
Marina86 [1]

Answer:

wrong❌❌

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wrong❌❌

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3 0
3 years ago
two amounts of money are in the ratio 8:3.if the second amount is $4.05, what is the value of the first amount
bulgar [2K]

Answer:

10.8$

Step-by-step explanation:

(8*4.03)/3 = 10.8

5 0
3 years ago
Hiking up a mountain, you notice that the air temperature drops 10 degrees every 1000 meters increase in elevation. Write a mult
Elina [12.6K]

 decrease in temperature if you hike up the mountain 3000 meters is  -30° .

<u>Step-by-step explanation:</u>

Here we have , Hiking up a mountain, you notice that the air temperature drops 10 degrees every 1000 meters increase in elevation . We need to find Write a multiplication expression to represent the decrease in temperature if you hike up the mountain 3000 meters. Let's find out:

For every 1000 meters rise in elevation , there is decrease in 10° of temperature . So , For rise in n meters in  elevation , there is decrease in n×10° of temperature i.e

Decrease in temperature = (n/1000)×(-10) i.e.

⇒  (n/1000)×(-10)

⇒ \frac{n}{1000}(-10)

At n = 3000 meters:

⇒ \frac{3000}{1000}(-10)

⇒ 3}(-10)

⇒ -30°  

Therefore ,  decrease in temperature if you hike up the mountain 3000 meters is  -30° .

8 0
3 years ago
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