MATHEMATICS HIGH SCHOOL

Find f(–2) for the function f(x) = 3x2 – 2x + 7.

Answers

Answer 1
Answer:

The correct answer is: 23

Explanation:

Given function:

f(x) = 3x^2 - 2x + 7 ---- (A)

f(-2) means that we have to put x = -2 in equation (A):

f(-2) = 3(-2)^2 - 2(-2) + 7 \n f(-2) = 3*4 + 4 + 7 \n f(-2) = 12+4+7 \n f(-2) = 23 \n


Hence the correct answer is: f(-2) = 23.
Answer 2
Answer: the correct answer is 23

Related Questions

What is the solution of StartRoot x squared + 49 EndRoot = x + 5?
Round 14.49 to the nearest whole number
(Permutations) what is he value of 8C6?
7y+z evaluate if y=4 an z =-2
The park is 6 mi due east of Freeport High School, and the library is 4 mi due west of the school. The police department is located due north of the school and is 5 mi from the library.How far is the police department from the park? Round to the nearest tenth of a mile. blank mi

A ski club charges nonmembers $48 per session plus ski rental fee of $24 per session. A memeber pays a monthley fee of $384 plus a ski rental fee of $8 per session. how many sessions would both a memeber and nonmember have to ski in order to pay the same amount?

Answers

Answer:

6

Step-by-step explanation:

Let x be the number of sessions required.

We have (48 + 24)x = 384 + 8x.

=> 72x = 384 + 8x

=> 64x = 384

=> x = 6.

The angles below form a linear pair.
What is the measure of angle ABC?

Answers

The measure of angle ABC from the given figure is 132 degree.

Given that, ∠CBD is 48°.

When two lines cross at one point, a linear pair of angles is created. If the angles follow the intersection of the two lines in a straight line, they are said to be linear. A linear pair's total angles are always equal to 180°.

Here, ∠ABC+∠CBD=180°

∠ABC+48°=180°

∠ABC=180°-48°

∠ABC=132°

Therefore, the measure of angle ABC from the given figure is 132 degree.

Learn more about the linear pair here:

brainly.com/question/17401000.

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3/10 of the fruits at a fruit stall are oranges. The rest are apples and pears. The ratio of the number of apples to the number of pears is 7:4. The total number of pears and apples is 528 more than the number of oranges.How many more apples than pears are there at the stall?

Answers

Answer: 880

Step-by-step explanation:

Blux17help!
Miguel drove for 8 hours at a constant rate. He drove a total of 424 miles.

Donna also drove at a constant rate. The table shows the number of miles she had driven in different numbers of hours.

How do the unit rates compare?


Miguel has a (blank) unit rate of change than Donna because(blank) is greater than(blank)

Answers

Answer:

Miguel has a  

greater

unit rate of change than Donna because  

53 mph

is greater than  

48 mph

Step-by-step explanation:
424/8 =53

(288 - 144)/(6 - 3) = 144/3 = 48

Miguel has a greater rate  than Donna by 5 miles per hour.

What adds to 10 and multiplies to 13

Answers

Seeing how 13 is a prime number you will not find a solution with the way you have written it out. and not only that 10x3 is not 13 it is 30.

A cupcake shop sells an average of 14 dozen cupcakes a day to about 50 customers. What is their average sales rate, in cupcakes per customer.?

Answers

14x12=168
168/50= 3.36

Final answer:

To find the average sales rate of cupcakes per customer, you divide the total number of cupcakes sold (168) by the total number of customers (50). The result is approximately 3.36 cupcakes per customer.

Explanation:

To answer this question, you need to understand the concept of a rate, which is a ratio that compares two different kinds of units. Here, the units are the number of cupcakes sold and the number of customers.

Firstly, note that a 'dozen' equals 12. So the shop sells 14 dozen, or 168 cupcakes every day.

To compute the rate, you divide the total number of cupcakes by the number of customers: 168 cupcakes ÷ 50 customers = 3.36 cupcakes per customer. So, on average, each customer at the shop buys approximately 3.36 cupcakes.

Learn more about Rate Calculation here:

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Find four consecutive integers such that twice the sum of the two greater integers exceeds three times the first by 91
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An arithmetic sequence is shown below. −7,−3,1,5,9,... Which represents an explicit formula for this sequence. A f(n) = -7 +4 (n-1) B f(n) = -4 +7 (n-1) C f(n) = -4 +7 (n-1) D f(n) = -11 (n-1)