Answer:
Answer:
r=4
Step-by-step explanation:
Let's solve your equation step-by-step.
4(r+2)−13=11
Step 1: Simplify both sides of the equation.
4(r+2)−13=11
(4)(r)+(4)(2)+−13=11(Distribute)
4r+8+−13=11
(4r)+(8+−13)=11(Combine Like Terms)
4r+−5=11
4r−5=11
Step 2: Add 5 to both sides.
4r−5+5=11+5
4r=16
Step 3: Divide both sides by 4.
4r
/4 =16
/4
Answer:
r=4
Answer:
Step-by-step explanation:
- B ± √ B2-4AC
x = ____________
2A
which will be
4 ± √ -144
x = _______
10
x =(4-√-144)/10=(2-6i)/5= 0.4000-1.2000
Answer:
Step-by-step explanation:
<em>See the drawing attached</em>
<h3>Given</h3>
- C is midpoint of AB
- B is between A and D
- AD = 15
- BD = 7
- Find CD
<h3>Solution</h3>
- CD = CB + BD =
- 1/2AB + BD =
- 1/2(AD - BD) + BD =
- 1/2(15 - 7) + 7 =
- 1/2(8) + 7 =
- 4 + 7 =
- 11
It would be 4.4mm/.5 mm x 4 cm = 35.2 cm
Note: to round to the nearest ten, look to the first place digit. if it is 5 or greater, round up, if 4 and lower, round down
<em>124 rounded to the nearest ten = 120</em>
<em>38 rounded to the nearest ten = 40</em>
<em>71 rounded to the nearest ten = 70</em>
<em>207 rounded to the nearest ten = 210
120 + 40 + 70 + 210 = 120 + 110 + 210 = 230 + 210 = 440
440, or C </em>is your answer
hope this helps