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rjkz [21]
2 years ago
11

What is the value of the expression 5b+3c-20+3b-15c+4 when b= 2 and c= -3

Mathematics
1 answer:
Molodets [167]2 years ago
3 0

Answer: 36

Step-by-step explanation:

5(2)+3(-3)-20+3(2)-15(-3)+4

10-9-20+6+45+4

-19+55

36

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Find and simplify the difference quotient of the form<img src="https://tex.z-dn.net/?f=%5Cfra%5Cfrac%7Bf%28x%29-f%28a%29%7D%7Bx-
Ilia_Sergeevich [38]

Answer: 3x + 13

Step-by-step explanation:

f(x)=3x^2+x\\f(a)=3a^2+a\\f(4)=3*4^2+4=52\\\\f(x)-f(4)=3x^2+x-52=(x-4)(3x+13)\\\\\dfrac{f(x)-f(4)}{x-4} =\dfrac{3x^2+x-52}{x-4} \\\\if\ x \neq 4\ then \\\\\dfrac{f(x)-f(4)}{x-4} =\dfrac{(x-4)(3x+13)}{x-4} \\\\=3x+13\\

6 0
2 years ago
Read 2 more answers
I need all of these awnser a please !
valentinak56 [21]
8.180-65-90=25
180-80-60=40
So, 180-40-25=115.

9.(180-40)divide by 2=70
X=180-70
X=110

10.180-118=62
So, 180-62-90
=28

11.not confident yet

12.180-60=120

13. (180-66)divide by 2 =57
180-57=123
(180-123)divide by 2
=28.5

14.180-68-44=68
180-58-73=49
So,180-68-49=63
(Its the same)
3 0
3 years ago
Which angles are adjacent to each other? Question is located in the attached file (image)​
daser333 [38]

Answer:

∠ 1 and ∠2

Step-by-step explanation:

Adjacent angles share a common ray or side between them, and have the same vertex.  

Therefore, the adjacent angles from the given image are: ∠ 1 and ∠2.

The other given options are not adjacent angles because they do not have the same common vertex and ray.  

8 0
2 years ago
I need the answer quick pls!!!
Eddi Din [679]
I don’t know sorry
I I don’t know sorry
5 0
3 years ago
HELPPP ASAP!!!<br><br> How many cubes are in this set?
Stella [2.4K]

Answer:

7

Step-by-step explanation:

7 because it's not asking for squares it asking for cubes

7 0
3 years ago
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