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inysia [295]
4 years ago
7

How many terms are in the algebraic expression 3x^2+4y-1

Mathematics
1 answer:
Anit [1.1K]4 years ago
3 0
the expression has 3 terms.
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(p-4)^2=4p complete the square if possible
Assoli18 [71]

Answer:

p=6+2 \sqrt{5}, p=6-2 \sqrt{5}

Step-by-step explanation:

Step 1: Given expression is (p-4)^{2}=4 p.

Step 2: To write the equation in the quadratic form, subtract 4p from both sides of the equation.

\Rightarrow(p-4)^{2}-4 p=4 p-4 p

\Rightarrow p^{2}-8 p+16-4 p=0

\Rightarrow p^{2}-12 p+16=0

\Rightarrow p^{2}-12 p=-16

Step 3 :Add\left(\frac{-12}{2}\right)^{2} on both sides of the equation.

\Rightarrow p^{2}-12 p+\left(\frac{-12}{2}\right)^{2}=-16+\left(\frac{-12}{2}\right)^{2}

\Rightarrow p^{2}-12 p+36=-16+36

\Rightarrow(p-6)^{2}=20

Step 4: Taking square root on both sides of the equation.

(p-6)=\pm \sqrt{20}

p=6 \pm 2 \sqrt{5}

Hence, p=6+2 \sqrt{5}, p=6-2 \sqrt{5}.

3 0
4 years ago
A rectangle has length x+9 and width 2x-1 what are the areas of the rectangle
AlekseyPX
Area=l*w 

a=(x+9)(2x-1) <--- Use FOIL 

a=2x²-x+18x-9 
a=2x²+17x-9 

Hope I helped :) 
4 0
4 years ago
Marta's jump rope is 10" shorter than three times the length of Dilbert's rope. If both their ropes laid together end to end and
-Dominant- [34]
3d-10+d=120              32.5(3)-10
3d+d-10=120               97.5-10            
4d-10=120                    87.5
   +10  +10
-------------------             Martha's rope is 87.5" long
4d=130
----  ----
  4    4

d=32.5


4 0
4 years ago
Calculate the values of y in each of the following.
nadezda [96]

Answer:

a. 30

b. 12

c. 10

Step-by-step explanation:

a. 5(6)=30

b. 2(3)+6=12

c. -4(-2)-(-2)=10

3 0
3 years ago
Read 2 more answers
AYO HELP ME WITH THIS!!!!
xeze [42]

Answer:

a taco is 1.25 and a drink is 0.95

Step-by-step explanation:

tacos = t

drinks = d

5t + 3d = 9.10

3t + d = 4.70

this is a simultaneous equation so times the first one by one and the second by 3 and then take them away from each other and solving to get

t = 1.25 and d=0.95

one drink is $0.95

one taco is $1.25

Hope this helps!!

4 0
3 years ago
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