Answer:
4 and 5
Step-by-step explanation:
20 is greater than 4² = 16, and less than 5² = 25. So, the square root of 20 is between 4 and 5.
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Your calculator will tell you that √20 ≈ 4.472, so is between 4 and 5.
Answer:
x=25
Step-by-step explanation:
24²+7²=625
√625= 25
Answer:
Step-by-step explanation:
Comparing the given y-4=-2/5(x-1) with the standard point-slope formula for the equation of a straight line, we get
y-4=-2/5(x-1)
y-k = (-2/5)(x - 1). Thus, k = 4 and h = 1, and so one point on this new line is (1, 4).
The slope is -2/5.
First, plot a dark dot at (1, 4).
Next, starting with your pencil point on that dot, move your point 5 units to the right and then 2 units down. Plot a dark dot there.
Finally, draw a line through your two dark dots.
Answer:
-ab/1
Step-by-step explanation:
The multiplicative inverse of x/y is y/x, because when multiplied it equals 1.
x/y time y/x = xy/xy, which equals one.
In this case, -1/ab times -ab/1 = -1ab/-1ab, which equals one.
5x-30+5x=180 due to RS and TS being congruent,
10x-30=180
10x=210
x=21