All categories

4 years ago

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.

You might be interested in

(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