All categories

2 years ago

Show three ways to estimate 3/5×9 1/2 identify each method you use

Mathematics

2 answers:

Slav-nsk [51]2 years ago

6 0

$\frac{3}{5}$ x 9 $\frac{1}{2}$

= $\frac{27}{10}$ = 2,7

Tatiana [17]2 years ago

5 0

The answer of this qestun is 10 1/10

You might be interested in

Which of the following is NOT equal to sin pi/3

Yanka [14]

Answer:

D) $sin(\frac{4\pi }{3} ) = sin(\pi +\frac{\pi }{3} ) = -sin\frac{\pi }{3}$

Step-by-step explanation:

$sin(\frac{2\pi }{3} ) = sin ( \pi - \frac{\pi }{3} ) = sin\frac{\pi }{3}$

$cos (\frac{\pi }{6} ) = cos ( \frac{\pi }{2} - \frac{\pi }{3} ) = sin(\frac{\pi }{3})$

$cos (\frac{11\pi }{6} ) = cos ( \frac{3\pi }{2} + \frac{\pi }{3} ) = sin(\frac{\pi }{3})$

$sin(\frac{4\pi }{3} ) = sin(\pi +\frac{\pi }{3} ) = -sin\frac{\pi }{3}$

8 0

2 years ago

Can someone plz help me?

earnstyle [38]

Answer:

14.8

Step-by-step explanation:

4 0

2 years ago

Use Cramer's rule to find the solution to the following system of linear equations.

slavikrds [6]

Answer:

x = 53

y = 30

Step-by-step explanation:

Step(I):-

Given equations are

x -2y =-7 ...(I)

5x-9y =-5 ..(ii)

The matrix form AX = B

$\left[\begin{array}{ccc}1&-2\\ 5 & -9\\\end{array}\right] \left[\begin{array}{ccc}x\\y\\\end{array}\right] = \left[\begin{array}{ccc}-7\\-5\\\end{array}\right]$

The determinant

$= \left|\begin{array}{ccc}1&-2\\5&-9\\\end{array}\right| = -9+10 =1$

By using Cramer's Rule

Δ₁ = $\left[\begin{array}{ccc}-7&-2\\\\-5&-9\end{array}\right]$

The determinant is Δ₁ = -9 X -7 - (10 ) = 53

x = Δ₁ / Δ

x = 53

The determinant

Δ₂ =

Δ₂ = -5 +35

y = Δ₂/Δ = 30

5 0

2 years ago

Read 2 more answers

I don't know how to find angle 1

Ronch [10]

I think it's 150! Hope this helps :)

7 0

3 years ago

Hi help meeeeeeee please i will mark you brainiest if you can answer this

Roman55 [17]

Answer:

Step-by-step explanation:

Honestly don't even care about the points lol. You need to divide 12^7 by 12^3, which comes out to 20,736 crates needed for the shipment of toys. If that first 12 isnt to the power of 3 simply replace it with the power that it actually is and divide 12^7 by it.

8 0

2 years ago