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OverLord2011 [107]
3 years ago
12

What is the value of the expression 5ab - 2c, where a = 2, b = 3 and c=0?

Mathematics
1 answer:
Len [333]3 years ago
5 0

Answer:

30

Step-by-step explanation:

5*2*3-2*0 ( when we multiply any number with zero then the result is also zero)

30-0

30

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Given 3 and m are the roots of the quadratic equation 2x2 + kx - 15 = 0. Find the values of k and m.
velikii [3]

Answer:

If the roots of any equation are equal then it means that their Discriminant = 0

So, b²-4ac = 0

We have given the equation 2x² + kx + 2, where,

a = 2

b = k (we have to find the value)

c = 2

Then, b²-4ac=0

b² - 4(2)(2) = 0

b² - 16 = 0

b² = 16

√16 = 4

Hence the vue of k is 4.

Read more on Brainly.in - https://brainly.in/question/15922720#readmore

Step-by-step explanation:

hope it helps you ( ◠‿◠ )

8 0
2 years ago
Y-8=-x solve for y<br>please show work I'm trying to find the y intercept ​
Novay_Z [31]

x- intercept (- 8, 0), y- intercept (0, 8)

Step-by-step explanation:
To find the y- intercept, let x = 0 in the
equation and solve for y
y = 0 +8 =8 (0,8 ) y -intercept
To find the x- intercept, let y = 0 in the
equation and solve for x
x + 8 = 0 ( subtract 8 from both sides )
x=- 8 (-8, 0) intercept.

If wrong sorry I tried
6 0
2 years ago
If set A has 3 elements, then number of elements in A×A×A are​
mrs_skeptik [129]

Answer:

27

Step-by-step explanation:

If set A has 3 elements then number of elements in A*A*A is 27

7 0
3 years ago
Consider the following equation. x+4/x-6 +3/2x+5=7. What are the constraints on x?
TiliK225 [7]
X cannot be 6 or -2/5  because if they were the denominator would be zero
6 0
3 years ago
Beth works at a grocery store. She earns $8 per hour for her first 20 hours of work in a week. She earns $11 per hour for workin
aleksandr82 [10.1K]

Answer:

the 2nd graph

*this is my first time answering a question xd*

3 0
3 years ago
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