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
Shtirlitz [24]
3 years ago
15

Evaluate 4x exponent 2+ 2x-1 for x=9

Mathematics
1 answer:
olasank [31]3 years ago
8 0

The value of given expression is 341

Solution:

Given that we have to find the value of given expression

<em><u>Given expression is:</u></em>

4x^2 + 2x - 1

Given value is x = 9

<em><u>Substitute x = 9 in given expression</u></em>

\rightarrow 4(9)^2+2(9) - 1

Solve the above expression

\rightarrow 4 \times (9 \times 9) + 18 -1\\\\\rightarrow 4 \times 81 + 17\\\\\text{Multiply the terms 4 and 81 }\\\\\rightarrow 324 + 17\\\\\text{Add the numbers }\\\\\rightarrow 341

Thus the value of given expression is 341

You might be interested in
How many million bacteria were in the dish at 9 a.mt
TEA [102]

Answer:it depends what was on it but i would say about 500

Step-by-step explanation:

3 0
3 years ago
Find the least common denominator for these<br> two rational expressions.<br> 8/n<br> n/7n²
Serga [27]

Answer:

7n^2

Step-by-step explanation:

Multiply 8/n by 7n/7n to get 56n/7n^2

5 0
2 years ago
Tell whether the two quantities vary directly. Explain your reasoning. The cafeteria provides three meals per day.
Dafna11 [192]

Answer:

The cafeteria provides three meals per day.

<u>Reason 1</u>

Yes, they vary directly  

As number of days increases ,Total number of meals i.e

1st day ⇒ 3

2nd day⇒6

3 rd day⇒9

4th day⇒12

......................

.........................

increases.

Total number of Meals = k×Number of days

But there is another possibility also

<u>Reason 2</u>

1 st day ⇒ 3

2nd day ⇒3

3rd day⇒ 3

.....................

.....................

As you can see from the above expression On each day number of meals is  

constant.

So we can say that ,

On each Day=Constant amount of meal=3

So, there is no Proportionality between Days and Meal.




3 0
3 years ago
License plate in a particular state display 3 letters followed by 3 numbers how many different licenses plates can be for this s
34kurt

Answer:

What state? There is no state there

7 0
3 years ago
Which of the following is false about the figure?
Olin [163]

Answer:

d.

Step-by-step explanation:

Let's examine each statement:

Option A: m<CUD = m<VUM (CORRECT)

Rationale: vertical angles are congruent to each other.

Option B: m<AUV + m<DUA = 180 (CORRECT)

Rationale: angles on a straight line

Option C: m<MUC - m<MUD = m<CUD (CORRECT)

Rationale:

m<MUC = m<MUD + m<CUD

Subtract m<MUD from each side

m<MUC - m<MUD = m<CUD

Option D is FALSE

Rationale:

m<PUD + m <VUP = 180° (angles on a straight line)

m<PUM + m<CUA ≠ 180°

Therefore,

m<PUD + m<VUP = m<PUM + m<CUA IS FALSE.

5 0
3 years ago
Other questions:
  • Solve the equation.-21=m/3m<br> m=7<br> m=-7<br> m=-63<br> m=63
    7·1 answer
  • For each line, state its slope and its y-intercept. 6y-2x=15
    15·1 answer
  • Jordan bikes at a speed of 8 2/3 mph. How many miles will he bike in 45 minutes?
    6·1 answer
  • Please help me guysssssssssss I need help.......... Assignment due in 30 MIN!!!!! 1 PIC ATTACHED
    6·2 answers
  • Definition of systematic sampling
    7·2 answers
  • Kn+4f= 9v solve for v
    8·1 answer
  • If we hummingbird were to get all of his food for me feed her then a 16 ounce nectar feeder could feed about 80 hummingbird a da
    15·1 answer
  • Can someone help me with those three and explain how u got it
    5·1 answer
  • Solve for x. Assume that lines which appear tangent are tangent.
    6·1 answer
  • 20 POINTS PLS HELP ASAP
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!