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2 years ago

If x=3 what is 3x+7x(8x 5) ALSO does anyone wanna ch.at?

Mathematics

2 answers:

koban [17]2 years ago

7 0

Answer:

56x6+3x

Step-by-step explanation:

3x+7x(8x5)

3x+56x6

balandron [24]2 years ago

6 0

Answer:

618

Step-by-step explanation:

Given,

x = 3

To find : 3x + 7x ( 8x + 5 ) = ?

Solution : -

3x + 7x ( 8x + 5 )

= 3 ( 3 ) + 7 ( 3 ) ( 8 ( 3 ) + 5 )

= 9 + 21 ( 24 + 5 )

= 9 + 21 ( 29 )

= 9 + 609

= 618

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BRAINLIEST if right!

Brilliant_brown [7]

Y=-1/3x-1.
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5 0

2 years ago

Is 5, √50, 5 a right triangle

Fynjy0 [20]

Answer:

Yeah,its right angled traingle.

Reason:Suppose Root over 50 as hypotenuse and other two sides as base and perpendicular respectively.

By using pythagoras theorem

h^2=p^2+b^2

50=50(which is true)

Therefore it is right angled triangle..This is your required answer.

3 0

2 years ago

I need help with this question.

pashok25 [27]

Answer:

B. 9/91

Step-by-step explanation:

-81/9 = -2

9/81 = 1/9

√9 = 3

√81 = 9

B is the odd one out; it's a fraction.

6 0

2 years ago

How to find the number of sides of a polygon when given the interior angle sum

wariber [46]

Given:

Sum of interior angle

To find:

Number of sides of a polygon

Solution:

Using sum of interior angles formula:

$$S=(n-2) \times 180^{\circ}$

where "S" is the sum of interior angels and "n" is the number of sides of a polygon.

Divide by 180° on both sides.

$$\frac{S}{180^{\circ}}=\frac{(n-2) \times 180^{\circ}}{180^{\circ}}$

Cancel common factor 180°.

$$\frac{S}{180^{\circ}}=n-2$

Add 2 on both sides.

$$\frac{S}{180^{\circ}}+2=n-2+2$

$$\frac{S}{180^{\circ}}+2=n$

Switch the sides.

$$n=\frac{sum}{180^{\circ}}+2$

Therefore number of sides of a polygon is $n=\frac{sum}{180^{\circ}}+2$ .

3 0

3 years ago

The volume of a cone with a height of 4 cm is 12π cubic cm. What is the radius of the base?

blondinia [14]

Answer:

r = 6cm

Step-by-step explanation:

Solve for r:

$v = \frac{1}{3} \pi {r}^{2}$

$12\pi = \frac{1}{3} \pi {r}^{2} \\ 12\pi = \frac{\pi {r}^{2} }{3} \\ 3 \times 12\pi = \pi {r}^{2} \\ 36\pi = \pi {r}^{2} \\ \frac{36\pi}{\pi} = \frac{\pi {r}^{2} }{\pi} \\ \sqrt{ {r}^{2} } = \sqrt{36} \\ r = 6$

4 0

2 years ago