Answer:
4.618
Step-by-step explanation:
Let's use x to represent the number so we can write an equation to solve it.
'twice the number' is represented by 2x so we have our equation:
2x-5^0.5=7
(5^0.5 is just square root 5 because I can't do a square root symbol.)
Now we need to isolate the x term so:
2x-5^0.5+5^0.5=7+5^0.5
2x=7+5^0.5
Square root 5 = 2.236 (3dp)
2x=7+2.236
2x=9.236
2x/2=9.236/2
x=4.618
Hope this helped!
Use distributive property
2 = 2m - 16 - 2
Simplify
2 = 2m - 18
Add 18
20 = 2m
m = 10
Answer:
100 and 330
Step-by-step explanation:
Answer:26.9 feet
Step-by-step explanation:
SOH-CAH-TOA
\tan M = \frac{\text{opposite}}{\text{adjacent}}=\frac{74}{x}
tanM=
adjacent
opposite
=
x
74
\tan 70=\frac{74}{x}
tan70=
x
74
x\tan 70=74
xtan70=74
Cross multiply.
\frac{x\tan 70}{\tan 70}=\frac{74}{\tan 70}
tan70
xtan70
=
tan70
74
Divide each side by tan 70.
x=\frac{74}{\tan 70}=26.9338\approx 26.9\text{ feet}
x=
tan70
74
=26.9338≈26.9 feet
Type into calculator and roundto the nearest tenth of a foot.
L
M
N
74
26.9
(opposite of ∠M)
(adj. to ∠M)
(hypotenuse)
70°
They are not parallel because the slopes are different (slope of 4 and slope of 0.25)
Neither are they perpendicular. If they were then m1*m2 ( the product of their slopes) would be -1 ). The product of these slopes = 4*0.25 = 1)
So choice A is the correct one.
