Answer b is the church of church church and
For # 3 and 5 you need to use the quadratic formula:
<span>(-b +/- srt(b^2 - 4ac))/2a </span>
<span>a, b, and c are representative of this formula: ax^2 +bx + c </span>
<span>1) 2x^2+3x-9=0 </span>
<span>(2x - 3)(x + 3) = 0 </span>
<span>2x - 3 = 0, x + 3 = 0 </span>
<span>+3 +3, -3 -3 </span>
<span>2x = 3, ***x = -3*** </span>
<span>/2 /2 </span>
<span>***x = 3/2*** </span>
<span>2) 5x^2+2x=0 </span>
<span>(x)(5x + 2) = 0 </span>
<span>5x +2 = 0, ***x = 0*** </span>
<span>-2 -2 </span>
<span>5x = -2 </span>
<span>/5 /5 </span>
<span>***x = -2/5*** </span>
<span>4) 4x^2+7x-2=0 </span>
<span>(4x - 1)(x + 2) = 0 </span>
<span>4x - 1 = 0, x + 2 = 0 </span>
<span>+1 +1, -2 -2 </span>
<span>4x = 1, ***x = -2*** </span>
<span>/4 /4 </span>
<span>***x = 1/4***</span>
Hey there! I'll try to provide you with my best answer.
Answer:
Ration of giraffes to lions= 45:20
Ratio of giraffes to total animals= 45: 65
Hope it helps! ^^
Answer:
7.05
Step-by-step explanation:
sqrt(50) = sqrt(25 * 2) = sqrt(25) * sqrt(2) = 5sqrt(2) = 5 * 1.41 = 7.05
To find the median of a data set order all the numbers from least to greatest, then find the number in the middle. If there are two numbers in the middle find the mean of the two numbers.
90 52 78 64 67 88 68 75 75 78 ← given
52 64 67 68 75 75 78 78 88 90 ← ordered l to g
75 and 75 are the two numbers in the middle, and since they are the same that means 75 is our median.
D) 75 is your answer.
