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3 years ago

In the quadratic formula , what is the expression for the discriminant?

Mathematics

1 answer:

uysha [10]3 years ago

6 0

Answer:

gldfnlmnjmklzj'mgihjz'mhmcvkbmzcvbhjn'ifhd

fjjghnmj'

smhjopfmhjgfnmhjj

2333

Step-by-step explanation:;gjnmtrsJL:gkjnolfj

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,l,ko lgkjmj453453453

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Solve the equation. 78 = -2(m + 3) + m Question 11 options: –42 –28 –84 –72

alexandr1967 [171]

Before we begin, note the following:
+ve * +ve = +ve
-ve * -ve = +ve
+ve * -ve = -ve
-ve * +ve = -ve

Now, for the given question:
The given equation is:
78 = -2(m+3) + m

To solve for m, we need to isolate m on one side of the equation and compute its value as follows:
78 = -2(m+3) + m
78 = -2m - 6 + m
m-2m = 78+6
-m = 84
m = 84/-1
m = -84

7 0

3 years ago

Read 2 more answers

Machine A makes 12.75 ounces of popcorn in 3 minutes. Machine B makes 18 ounces of popcorn in 4 minutes.

NARA [144]

Answer:

Machine A makes popcorn at a rate of 4.25 ozs per minute (12.75oz/3min).

Machine B makes popcorn at a rate of 4.5 ozs per minute (18oz/4min).

Machine A will make 4.25oz/min * 10minutes = 42.5oz of popcorn after 10 minutes

Machine B will make 4.5oz/min * 10 minutes = 45oz of popcorn after 10 minutes

After 10 minutes there will be a total of 42.5oz (Machine A) +45oz (Machine B) = 87.5oz.

So the answer is: Yes there will be (more than) enough popcorn if both machines make popcorn for 10 minutes.

If the question is wondering how many 9oz bags they can fill: 87.5oz/9oz per bag = 9.7222 bags. The machines can fill 9, 9oz, bags with some popcorn leftover.

Step-by-step explanation:

Machine A makes popcorn at a rate of 4.25 ozs per minute (12.75oz/3min).

Machine B makes popcorn at a rate of 4.5 ozs per minute (18oz/4min).

Machine A will make 4.25oz/min * 10minutes = 42.5oz of popcorn after 10 minutes

Machine B will make 4.5oz/min * 10 minutes = 45oz of popcorn after 10 minutes

After 10 minutes there will be a total of 42.5oz (Machine A) +45oz (Machine B) = 87.5oz.

So the answer is: Yes there will be (more than) enough popcorn if both machines make popcorn for 10 minutes.

If the question is wondering how many 9oz bags they can fill: 87.5oz/9oz per bag = 9.7222 bags. The machines can fill 9, 9oz, bags with some popcorn leftover.

7 0

3 years ago

Read 2 more answers

Who were the first Muganda

Allushta [10]

Answer: wakanda fo eva

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

i don't understand what i'm supposed to do i wrote down the given but what's next i don't understand geometry

Assoli18 [71]

Check the picture below.

notice the tickmarks, is a given, that those sides are congruent.

now, look at the side at the bottom, the BC side, is really shared by both triangles, and therefore, the same length for both. Meaning we might as well put a tickmark on that one too.

so the triangles are congruent because all sides are equal on each, that is $\bf \boxed{S}ide\qquad \boxed{S}ide\qquad \boxed{S}ide$

8 0

4 years ago

Can you help me with 4, 5, 6?<br>I don't even know if number 4 is right.

Lerok [7]

Answer:

see explanation

Step-by-step explanation:

f(- 4) = means what is the value of f(x) when x = - 4

locate x = - 4 on the x- axis, go vertically down to the graph at (- 4, - 1 )

that is f(- 4) = - 1

f(1) means what is the value of f(x) when x = 1

locate x = 1 0n the x- axis, go vertically down to the graph at (1, - 2 )

that is f(1) = - 2

f(x) = - 4 means what is the value of x when f(x) = - 4

locate - 4 on the vertical axis, go across to the right to the graph at (4, - 4 )

that is when f(x ) = - 4 then x = 4

4 0

2 years ago