95141 1404 393
Answer:
- arc BC: 8.55 cm
- chord BC: 8.03 cm
Step-by-step explanation:
The length of an arc that subtends central angle α will be ...
s = rα . . . . where α is in radians
The central angle BOC is twice the measure of angle QBC, so is 70°, or 7π/18 radians. So, the length of arc BC is ...
s = (7 cm)(7π/18) ≈ 8.55 cm . . . arc BC
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For central angle α and radius r, the chord subtending the arc is ...
c = 2r·sin(α/2)
c = 2(7 cm)sin(35°) ≈ 8.03 cm . . . . chord AB
Answer:
slope-intercept form: y = 3x - 14
slope: 3
y-intercept: -14
Step-by-step explanation:
To find the equation in slope-intercept form, isolate the "y" variable by moving everything to the other side. Slope-intercept form looks like y = mx + b.
"x" and "y" mean points that are on the line.
"m" is the slope.
"b" is the y-intercept.
Rearrange the equation to isolate "y"
3x - y = 14
3x - 3x - y = 14 - 3x Subtract 3x from both sides
-y = 14 - 3x Multiply both sides by -1.
y = -14 + 3x Put "3x" in front of "-14" because it has the 'x'
y = 3x - 14 Looks like y = mx + b
State the "m" and "b".
m = 3 (Slope of the line)
b = -14 (y-intercept of the line)
Therefore the equation of the line in slope-intercept form is y = 3x - 14. The slope is 3 and the y-intercept is -14.
Answer:
she put the numbers in parentheses
Step-by-step explanation:
The answer is 3y=1+2x
i say this because if the answer ain't telling you to solve for x the you just do this
-2x+3y=1
+2x =1+2x which all u have to do now is drop the positive 3y
which gives you 3y=1+2x
Answer:
See the first attachment. The numbers indicate the order 1=least, 5=greatest.
Step-by-step explanation:
This is a calculator exercise. Put the numbers in your calculator and have it tell you the result. Don't forget that (ab)/(cd) = ab/c/d if you don't use parentheses.
See the 2nd and 3rd attachments for the values of the expressions.
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You can estimate values as follows (top to bottom):
1. 4·9·10^(8-5) ≈ 36·10^3
2. 7·8·10^(5-2) ≈ 56·10^3
3. (7·9)/(8·4)·10^(5-7+2+3) ≈ 2·10^3
4. (8·10)/(8·6)·10^(4+1-11+8) ≈ 1.7·10^2
5. (2·6)/(3·5)·10^(4+3+2-2) ≈ 0.8·10^7
These are crude estimates, but sufficiently close to put the numbers in order as required.
