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Phoenix [80]
3 years ago
13

The letter b represents a constant. Solve the equation for x . bx=−7

Mathematics
1 answer:
Elena-2011 [213]3 years ago
4 0
Get the app photo math it helps so much

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If sin(x) = cos(y) for acute angles x and y, how are the angles related?
Vesnalui [34]

Answer:

b. complementary

Step-by-step explanation:

-Complementary angles are angles that add up to 90°.

-These are usually the two acute angles in the right triangle.

#To verify, lets take the two angles 30° and 60°:

Cos \ 60\textdegree=0.5\\\\Sin \ 30\textdegree=0.5\\\\\therefore Sin \ 30\textdegree=Cos \ 60 \textdegree=0.5

#We can reverse as:

Sin \ 60\textdegree=0.86603\\\\Cos \ 30\textdegree=0.86603\\\\\therefore Sin \ 60\textdegree=Cos \ 30\textdegree=0.86603

Hence, two angles are said to be complimentary if they sum up to 90°.

6 0
3 years ago
A large purple bowl contains 5 blue marbles and 3 pink marbles. What is the probability a blue marble is drawn, replaced, and a
Blizzard [7]

Answer:

\frac{25}{64}

Step-by-step explanation:

Blue Marbles =5

Pink Marbles =3

Total =3+5=8

Probability of drawing two marbles with replacement

=P(First Blue Marble AND Second Blue Marble)

=P(First Blue Marble) X P(Second Blue Marble)

=\frac{5}{8}X \frac{5}{8}\\\\=\frac{25}{64}

3 0
3 years ago
Let a, b, c be the three observations. The mean of these observations is.
balu736 [363]

Answer:  a+b+c/3

Step-by-step explanation:

mean= sum of all values/number of values

6 0
3 years ago
Minus A plus 6 a ncert solution class 9​
lianna [129]

Answer:

yes htjjevdhfifnfjjdeirjfjebdv dbdu you fr

5 0
3 years ago
What is the equation of the line that passes through (-1,-4) and (9,-5) ?
amid [387]

Answer:

y=-1/10 x - 41/10

Step-by-step explanation:

slope: y2-y1 / x2-x1 = -5-(-4) /  9-(-1) = -1/10

y= -1/10 x +b, substitute (-1,-4) to solve b

-4=-1/10 (-1) +b

b=-41/10

4 0
3 years ago
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