3 years ago

What it the expression and what numbers do the parentheses go around on question 5

Mathematics

1 answer:

alexandr1967 [171]3 years ago

7 0

The parentheses should go around 4 - 1. Then the expression would be
3 x (4 - 1) + 2
Which equals 11.

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Help SOS LOTS OF SOS

Galina-37 [17]

Answer:

i think its 12 :)

Step-by-step explanation:

20 + 48 = 68

180 - 68 = 112

20 + 48 + 112 = 18 (a full triangle!)

8 0

4 years ago

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(6+23) x (32-25) + 72<br> I just need to see what the answer is to check my work

Vlad1618 [11]

Answer:

275

Step-by-step explanation:

6+23=29 and 32-25=7

29 x 7 = 203

203 + 72 = 275

The final answer is 275.

Hope this helps!

7 0

3 years ago

The range of a projectile that is launched with an initial velocity v at an angle of a with the horizontal is given by R

lara31 [8.8K]

Answer:

$\theta=30.285^{\circ}$

Step-by-step explanation:

The range of a projectile is given by :

$R=\dfrac{u^2\sin2\theta}{g}$

Put R = 20 m, u = 15 m/s and finding the value of angle of projection

So,

$R=\dfrac{u^2\sin2\theta}{g}\\\\\sin2\theta=\dfrac{Rg}{u^2}\\\\\sin2\theta=\dfrac{20\times 9.8}{15^2}\\\\\sin2\theta=0.871\\\\2\theta=\sin^{-1}(0.871)\\\\2\theta=60.57\\\\\theta=30.285^{\circ}$

So, the required angle of projection is equal to $30.285^{\circ}$ .

3 0

3 years ago

If one is subtracted from seven times a certain number,

prohojiy [21]

Answer:

The number is 8

Step-by-step explanation:

5 0

3 years ago

240/2,304 simplest form

bearhunter [10]

Answer:

5/48

Step-by-step explanation:

7 0

3 years ago

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