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Ainat [17]
4 years ago
6

3. What is the value ofy? A. 3 C. 6 B. 8 D. 12

Mathematics
2 answers:
Elena-2011 [213]4 years ago
5 0
I saw this question, i think it’s D) 12
lubasha [3.4K]4 years ago
5 0
D so I hope this helpppp
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What is the value of k, so that 3x²+7x+6-k=0 has one root equal to zero? <br>​
djverab [1.8K]

k = 13  is the value of k in quartic equation.

What does the term "quartic equation" mean?

An equation of the fourth degree, often known as a quartic equation, is one that reduces a quartic polynomial to zero. in which a 0. A quartic function's derivative is a cubic function.

Let α = 7x

     β = 6x

α + β =  7x + 6x  = k/3 ............1

13x = k/3

   αβ  = 7x  ×  6x = 14/3

               42x²  = 14/3

                   x²  = 14/3 × 42

                   x²  = 1/9

                   x = 1/3

now putting value of x in 1

7/3 + 6/3 = k/3

1/3( 7 + 6 )= k/3

    k = 13

Learn more about quartic equation

brainly.com/question/28593533

#SPJ9

3 0
1 year ago
In fig if x+y=w+z then prove that AOB is a line.​
frez [133]

Answer:

As Given, x+y=w+z

To Prove: AOB is a line or x+y=180

∘

(linear pair.)

According to the question,

x+y+w+z=360

∘

∣ Angles around a point.

(x+y)+(w+z)=360

∘

(x+y)+(x+y)=360

∘

∣ Given x+y=w+z

2(x+y)=360

∘

(x+y)=180

∘

Hence, x+y makes a linear pair.

Therefore, AOB is a straight line

4 0
4 years ago
A developer has 7 1/2 acres of land to build houses on. If each house is to be built on a 1/4 acre plot, how many can he build?
schepotkina [342]
The developer can build 30 houses.
7 0
3 years ago
Read 2 more answers
HELP! Number 13 please! Any other help would be amazing too.
juin [17]
The answer is probably d
7 0
3 years ago
Read 2 more answers
A board of length 16 ¾ inches is cut into 4 equal pieces. If 7/8 of an inch is then removed from one of these pieces, what is th
spayn [35]

Answer: \dfrac{53}{16}\ \text{or}\ 3\dfrac{5}{16}

Step-by-step explanation:

Given

Length of board is 16\ \frac{3}{4}

It is divided into 4 equal pieces i.e. length of each piece is

\Rightarrow \dfrac{\frac{64+3}{4}}{4}=\dfrac{67}{16}\ \text{in.}

If  \frac{7}{8} of an inch is removed from one of the pieces then,

\Rightarrow \dfrac{67}{16}-\dfrac{7}{8}\\\\\Rightarrow \dfrac{67}{16}-\dfrac{14}{16}=\dfrac{53}{16}\ \text{inch}

3 0
3 years ago
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