Help with this question

Mathematics

2 answers:

lapo4ka [179]3 years ago

7 0

For a put -3 then for b put the 2 then u finished

ladessa [460]3 years ago

5 0

For A you should put -3 and for b put 2

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Help pls i dont get this and it needs to be done before we leave

diamong [38]

Answer: 2210.6

Step-by-step explanation:

$V=\pi (8)^{2} \cdot 11 \approx 3.14 \cdot 8^{2} \cdot 11 \approx 2210.6$

7 0

3 years ago

Hi I need help with this question <br> 2 1/7+3/7(3x-5)=-4

olya-2409 [2.1K]

An equation is formed of two equal expressions. The value of x is -28/9.

<h3>What is an equation?</h3>

An equation is formed when two equal expressions are equated together with the help of an equal sign '='.

The given expression can be simplified as,

$2 \frac17+\dfrac37(3x-5)=-4\\\\\dfrac{15}{7} + \dfrac{9x-15}{7} = -4\\\\ \dfrac{15+9x-15}{7} = -4\\\\9x = -28\\\\x = \dfrac{-28}{9}$

Hence, the value of x is -28/9.

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5 0

3 years ago

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PolarNik [594]

For this problem, you have to use sin, cos or tan. a way to remember which is which is this: soh cah toa. u also need to kmow the 3 sides of a triangle when looking at the angle. the 40 is on the hypotenuse side(the side across from the right angle, located by the square) it is represented by (H) the 25 is adjacent or(next to) the angle. therefore, you need to use cosine for this problem. so you would do cos(adjacent/hypotenuse) or (cah) so in the calculator put it in as cos(25/40)

5 0

3 years ago

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Fynjy0 [20]

Answer:

$\frac{7}{11}$