What is 7x squared-2x+5?

Answers

Answer 1

Answer: 7x² - 2x + 5

That's a quadratic trinomial ... it has three terms, and
the highest power of the variable is the second power.

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The scatter plot shows the number of stamps Katie collected in different months:. . Plot ordered pairs 1, 30 and 2, 70 and 3, 110 and 4, 150 and 5, 190. . What is the approximate predicted number of stamps she collected in the 25th month?. . A. 980. B.990. C.1000. D.1010

Answers

The sequence:
a 1 = 30, a 2 = 70, a 3 = 110, a 4 = 150, a 5 = 190,...
a 2 = a 1 + d
70 = 30 + d
d = 70 - 30 = 40
a n = a 1 + ( n - 1 ) * d
For the 25th month:
a 25 = 30 + 24 * 40 = 30 + 960 = 990
Answer: B ) 990.

Answer:

B.) 990

Step-by-step explanation:

Here's another way of looking at it.

Make an equation representing the graph.

y = mx + b

to find m (slope) I used points (1,30) and (4,150) to get 40 as the slope.

y = 40x + b

to solve for b (y-intercept) I plugged in any point that I wanted in the corresponding place in the equation.

using (4,150)

150 = 40 (4) + b

using PEMDAS you find that b = -10

Then plug and chug to find the number of stamps for the 25th term.

y = 40(25) + -10 or y = 40(25) - 10

y = 990

Find the coordinates of the midpoint of the segment given the endpoints p( -3,-7) and q (3, -5)

Answers

Answer:

(0,-6)

Step-by-step explanation:

The midpoint from -3 to 3 is 0, so the first coordinate is 0

The midpoint from -7 to -5 is -6, so the second coordinate is -6

(0,-6)

7 less than -2 times a number x is greater than or equal to 41

Answers

-2x - 7 ≥ 41 is your answer

Evaluate the summation of 2 n plus 5, from n equals 1 to 12..

Answers

Given:
2n + 5

n = 1 to n = 12

2(1) + 5 = 2 + 5 = 7
2(2) + 5 = 4 + 5 = 9
2(3) + 5 = 6 + 5 = 11
2(4) + 5 = 8 + 5 = 13
2(5) + 5 = 10 + 5 = 15
2(6) + 5 = 12 + 5 = 17
2(7) + 5 = 14 + 5 = 19
2(8) + 5 = 16 + 5 = 21
2(9) + 5 = 18 + 5 = 23
2(10) + 5 = 20 + 5 = 25
2(11) + 5 = 22 + 5 = 27
2(12) + 5 = 24 + 5 = 29

Sum: 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21 + 23 + 25 + 27 + 29 = 216

Help Please ASAP thanks

Answers

your answer would definitely be the 3rd answer choice.

The answer(I hope) is the first one because it is 1/d divided by 1/-1 and that comes out to, 1! Hope this helped!

F(x) = 2/x, g(x) = |x| -1 What is the domain of (fog) (x)?

will mark brainliest

Answers

Answer:

x≠-1,1

Step-by-step explanation:

f(g(x)) is a composition where g(x) is is substituted for x in f(x).

Recall, f(x) is 2/x. So we write 2/|x|-1. This places x in the denominator and 0 cannot be in the denominator x. Any value of x that makes the denominator 0 will not be in the domain.

|x|-1=0

|x|=1

x=1,-1

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