Answer:
The vertex is (2,1)
Step-by-step explanation:
ƒ(x) = –x^2 + 4x – 3
Factor out the negative
= -(x^2 -4x+3)
Factor
What 2 numbers multiply to +3 and add to -4
-3*-1 = 3
-3+-1 = -4
f(x) = -( x-3)(x-1)
Find the zeros
0 = -( x-3)(x-1)
0 = x-3 0 = x-1
x=3 x=1
The x value of the vertex is 1/2 way between the two zeros
(3+1)/2 = 4/2 =2
To find the y value, substitute x=2 in
f(2) = -( 2-3)(2-1)
=-(-1)(1) = 1
The vertex is (2,1)
The calculation of the expression “four times as large as 124+645” end up in 1141.
<u>Step-by-step explanation:</u>
- The question is asked to Express the calculation “four times as large as 124+645”.
- The given statement can be written in the expression form to perform the calculations.
Here, the phrase 'four times' represents the multiplication of 4.
⇒ “four times as large as 124+645” = 4(124) + 645
So, the first step is to multiply 4 with 124.
⇒ 4 × 124
⇒ 496
The expression is now modified as “496+645"
We know that, the final result is the addition of the two numbers 496 and 645 which is calculated as
⇒ 496+645
⇒ 1141
Therefore, the calculation of the expression “four times as large as 124+645” end up in 1141.
60 minutes for 2 times of 4.5 miles
60 minutes for 9 miles.
9 miles/60 minutes = 9 miles/1 hour
9 mph
Answer:
<em>1</em><em>7</em><em>,</em><em>1</em><em>2</em><em>8</em>
Step-by-step explanation:
<u>p</u><u>o</u><u>r</u><u>q</u><u>u</u><u>e</u><u> </u><u>1</u><u>7</u><u>,</u><u>1</u><u>2</u><u>8</u>
<u>por</u><u>que</u><u> </u><u>2</u><u>,</u><u>1</u><u>4</u><u>1</u><u> </u><u>x</u><u> </u><u>8</u><u> </u><u>=</u><u> </u><u>1</u><u>7</u><u>,</u><u>1</u><u>2</u><u>8</u>
<u>e</u><u>spero</u><u> ter</u><u> ajudado</u><u> e</u><u> bons</u><u> estudos</u>
