Answer:
A. 26
Step-by-step explanation:
53+26=x+53
Add 53 and 26
79=x+53
subtract 53 from both sides
x=23
Answer:
2 m/s
Step-by-step explanation:
Since speed is total distance over time, we first need to find the total distance the car traveled.
Total distance = 200 + 80 + 120 = 400 m
total time = 200 sec
speed = distance/time = 400/200 = 2 m/s
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Answer:
Dependent and independent Variable.
Step-by-step explanation:
Dependent and independent Variable.
- The two variables in an experiment are independent and dependent variable.
- Usually, the dependent variable is denoted by y and the independent variable a re denoted by
- The dependent variable depends on independent variable in an experiment and thus cannot be controlled.
- On the other hand we can change or control the independent variables to test effect on dependent variable.
- As the independent variable are changed, we observe corresponding changes in the dependent variable.
- Example: Let money spend be the dependent variable. It depends on an independent variable of shopping. We may control or change or shopping habits to see the changes in the money spent. Money spent totally depends in the amount f shopping done.
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Answer:
diagonal AC is 20, so all half-diagonals are 10. BD is one such.
Step-by-step explanation:
The length of hypotenuse AC is given by the Pythagorean theorem:
AC² = AB² + BC²
AC² = 12² +16² = 400
AC = √400 = 20
The midpoint of AC is 10 units from A and from C.
Consider point E that finishes rectangle ABCE. Then diagonals BE and AC meet at their midpoints, D. The diagonals of a rectangle are the same length, so the four half-diagonals are congruent:
AD = CD = ED = BD = 10
_____
<em>Alternate solution</em>
The "rise" from BC to D is half of AB, so is 6.
The "run" from AB to D is half of BC, so is 8.
The Pythagorean theorem tells you BD = √(6² +8²) = 10.
5x + 18 + 81 + 4x = 180
Like terms
9x + 99 = 180
9x = 81
X = 9
Hope this helps!
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