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irina1246 [14]
2 years ago
7

V2 – v – 20 = 0 solve the equation by factoring

Mathematics
1 answer:
Ber [7]2 years ago
5 0

v^2-v-20=0\\v^2+4v-5v-20=0\\v(v+4)-5(v+4)=0\\(v-5)(v+4)=0\\v=5 \vee v=-4

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A right triangle has one leg that measures 7 inches, and the second leg measures 10 inches. How long is the hypotenuse?
faltersainse [42]

Answer:

Hypotenuse≈12.21

Step-by-step explanation:

\sqrt{7^{2} +10^{2} }   ≈12.21

to calculate this you would need to find the square root of the first leg squared added to the second leg squared.

the hypotenuse is the longest side of the triangle

8 0
3 years ago
Can you help me with these questions please?
Marianna [84]

The answers are following

sol1 y = x-1

sol2 y= x+ 7

sol4 y = x+4

Step-by-step explanation:

Solution 1

Here we are going put the point in the given equation ( given in the options)

If the each point satisfies any equation, that will be the relationship between x and y.

Given points are (-3,-4) , (2,1) , (5,4)

Let us take the option C as y = x -1

-4 = -3-1

1 = 2-1

4=5-1

Putting each value in the given equation we get LHS and RHS are same for all points. so, C is the answer.

Similarly, option B is the answer of Solution 2

Each point satisfies the equation y = x +7

Solution 4

y = x +4

You are requested to check the options of Q3 once.

5 0
4 years ago
I need help with this please
frez [133]
A = (6 x 7) + 1/2(6 x 3)
= 42 + 9
= 51
answer
51 in^2
5 0
3 years ago
Read 2 more answers
A company wants to select 1 project from a set of 4 possible projects. Which of the following constraints ensures that only 1 wi
Elza [17]

Given:

A company wants to select 1 project from a set of 4 possible projects.

Consider the options are:

a. X_1+X_2+X_3+X_4=1

b. X_1+X_2+X_3+X_4\leq 1

c. X_1+X_2+X_3+X_4\geq 1

d. X_1+X_2+X_3+X_4\geq 0

To find:

The constraints that ensures only 1 will be selected.

Solution:

It is given that the company wants to select 1 project from a set of 4 possible projects. It means the sum of selected projects must be equal to 1.

X_1+X_2+X_3+X_4=1

Therefore, the correct option is (a).

8 0
3 years ago
Type your answer and then click or tap Done.<br> Simplify -(x-2y) - y.
AlladinOne [14]

Answer:

Step-by-step explanation:

x(x-2y)-(y-x)2  

Final result :

 -y2

Step by step solution :

Step  1  :

Equation at the end of step  1  :

 x • (x - 2y) -  (y - x)2

Step  2  :

2.1     Evaluate :  (y-x)2   =    y2-2xy+x2  

Final result :

 -y2

4 0
3 years ago
Read 2 more answers
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