1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Goshia [24]
3 years ago
11

30. Find the value of expression 20m2 + 30m + 40 when a)m = -3 b)m= - 4 c) m = 3​

Mathematics
1 answer:
Temka [501]3 years ago
4 0

Answer:

di you mean m² when you say m2 or not?

You might be interested in
Can someone please help me with this last one. I am totally lost and don’t understand
Ad libitum [116K]

Answer:

g(-4) = -1

g(-1) = -1

g(1) = 3

Explanation:

If you are given a function that is defined by a system of equations associated with certain intervals of x, just find which interval makes x true, and then substitute x into the equation of that interval.

For example, given g(-4), this is an expression which is asking for the value of the equation when x = -4. So -4 is not ≥ 2, so ¼x - 1 will not be used. -4 is also not ≤ -1 and ≤ 2, so -(x - 1)² + 3 will not be used either. So in turn, we will just use -1 which is always -1 so g(-4) will just be -1, right because there is no x variable in -1 so it will always be the same.

Using the same idea as before g(-1) is g(x) when x = -1 so -1 will not be a solution because -1 is not less than -1 (< -1). -1 is not ≥ 2 either so we will be using the second equation because -1 is part of the interval -1≤x≤2 (it is a solution to this inequality), therefore -(x - 1)² + 3 will be used.

As x = -1, -(x - 1)² + 3 = -(-1 - 1)² + 3 = -(-2)² + 3 = -4 + 3 = -1.

It is a coincidence that g(-1) = -1.

Now for g(1), where g(x) has an input of 1 or the value of the function where x = 1, we will not use the first equation because x = 1 → x < -1 → 1 < -1 [this is false because 1 is never less than -1], so we will not use -1.

We will use -(x - 1)² + 3 again because 1 is not ≥ 2, 1≥2 [this is also false]. And -1 ≤ 1 < 2 [This is a true statement]. Therefore g(1) = -(1 - 1)² + 3 = -(0)² + 3 = 3

4 0
3 years ago
Could someone help me Plz and Ty &lt;3​
velikii [3]

\bold{Heya~!}

Your answer will be is :

\bold{\underline{A.}} \mathfrak{3\sqrt[3]{3}}

<h2><u>EXPLANATION :</u></h2>

<u></u>

Because its the square root of \mathfrak{3\sqrt[3]{3.}}

Hope It Helps ! ~

#LearnWithBrainly

\underline{Answer~:}

\mathfrak{\underline{Dollixna}}

5 0
2 years ago
Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 18 2 15 35 Female 20 12 19 51
Oksana_A [137]

Answer:

If we are choosing students at random from all students who got a B:

Total number of non-female students who got a B: 19

Total number of students who got a B: 36

Probability: 19/36

If we are choosing students at random from all students:

Total number of non-female students who got a B: 19

Total number of students: 78

Probability: 19/78

3 0
3 years ago
Throughout Singapore it has been estimated that about a billion (1 000 million) cubic meters of water are used each day. If we a
GenaCL600 [577]

Answer:

333  cubic meters of water are used each day by one person

Step-by-step explanation:

4 0
2 years ago
Which of the following statements is true
kolbaska11 [484]

Answer:

D. This quadratic equation two complex solutions.

Step-by-step explanation:

5x^2 +6x +2= 0\\

Equating it with

ax^2 +bx +c= 0\\

a = 5, b = 6, c = 2

b^2 -4ac\\= 6^2 - 4\times 5\times 2\\= 36-40\\b^2 -4ac= - 4\\

\because b^2 -4ac is negative.

Therefore, this quadratic equation two complex solutions.

5 0
3 years ago
Other questions:
  • Simplify the expression
    7·1 answer
  • How can I calculate the height of a triangle without having the base?
    7·1 answer
  • Order the following from greatest to least
    5·1 answer
  • Which of the following is a polynomial with roots
    8·2 answers
  • Simplify and solve for the unknown. Use order of operations as needed. Check your work.
    14·1 answer
  • Trevor bakes 8 batches of biscuits,with 14biscuits in each batch.he sets aside 4 biscuits from each batch for a bake sale and pu
    6·2 answers
  • Need help ASAP<br> What are the domain and range of the function
    12·1 answer
  • Evaluate 1+3+5+...+25
    9·1 answer
  • Find the tenth term in the pattern
    10·1 answer
  • 5
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!