Answer:
8y3+6y2-29y+15
Step-by-step explanation:
Expand
(
4
y
−
3
)
(
2
y
2
+
3
y
−
5
)
by multiplying each term in the first expression by each term in the second expression.
4
y
(
2
y
2
)
+
4
y
(
3
y
)
+
4
y
⋅
−
5
−
3
(
2
y
2
)
−
3
(
3
y
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−
3
⋅
−
5
Answer:
1/sqrt10
Step-by-step explanation:
1) Find out cosA using formula (cosA)^2+(sinA)^2=1
The module of cosA= sqrt (1- (-3/5)^2)= sqrt 16/25=4/5
So cosA=-4/5 or cosA=4/5.
Due to the condition 270degrees< A<360 degrees, 0<cosA<1 that's why cosA=4/5.
2) Find sinA/2 using a formula cosA= 1-2sinA/2*sinA/2 where cosA=4/5.
(sinA/2)^2= 0.1
sinA= sqrt 0.1= 1/ sqrt10 or sinA= - sqrt 0.1= -1/sqrt10
But 270°< A< 360°, then 270/2°<A/2<360/2°
135°<A/2<180°, so sinA/2 must be positive and the only correct answer is
sin A/2= 1/sqrt10
To multiply a number by 10^6, simply add 6 zeros to the end of the number (move the decimal 6 place values to the right and fill in with appropriate zeros).
Final answer: 93,000,000
I’m not sure
But
It could be 26!
Answer:
1 3/4
Step-by-step explanation:
3 1/2 boxes of tomatoes currently. uses 1 3/4, taking it away basically.
3 1/2 - 1 3/4
3 2/4 - 1 3/4 ;; i did this with finding a common denominator for it to be easier for me to solve.
3 - 1 = 2
2/4 - 3/4 = -1/4
2 + -1/4 = 1 3/4
correct me if wrong.
