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3 years ago

I need help solving algebra equations to teach my kid. D-4=12.4 D=?

Mathematics

2 answers:

Andreyy893 years ago

7 0

Answer: $d=16.4$

Step-by-step explanation:

Step 1) Add 4 to both sides: $d-4+4=12.4+4$

$d=16.4$

Luda [366]3 years ago

4 0

Answer: D=16 please give brainliest

Step-by-step explanation:

D-4=12

first add +4 to both sides to reverse it

D=16 and to make sure its right

lets substutie for D

16-4=12

12=12

correct

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maxonik [38]

Base of prism is seemed to be a triangle

Base=B=3
Height of base=H=6units
Height of prism=8

Area of base=

$\\ \sf\longmapsto \dfrac{1}{2}BH$

$\\ \sf\longmapsto \dfrac{1}{2}(3)(6)=3(3)=9units^2$

Now

Volume=V

$\\ \sf\longmapsto V=9(8)=72units^3$

3 0

2 years ago

Find the volume of a cylinder with base radius of 3 and height of 2

Lunna [17]

Answer:

Volume equals 56.6 when rounded to the nearest tenth

Step-by-step explanation:

YOU NEED A CALCULATOR TO SOLVE THIS!

To find the volume of a cylinder you need the formula $V = \pi r^{2}h$

Now that you have the formula you plug in the radius and the height

$V = \pi (3^{2}) (2)$

Then solve

$V = \pi (9)(2)$

$V = 18\pi$

$V = 56.548667764616278$

5 0

3 years ago

Please help, been stuck on this for ages!

marishachu [46]

Answer:

$\boxed {192 cm^{2}}$

Step-by-step explanation:

Find the volume of separate cuboids :

Volume (top cuboid) :

⇒ V = 2 x 6 x (10 - 2)

⇒ V = 12 x 8

⇒ V = 96 cm²

Volume (lower cuboid) :

⇒ V = 8 x 6 x 2

⇒ V = 48 x 2

⇒ V = 96 cm²

Volume (prism) :

⇒ 96 + 96

⇒ 192 cm²

8 0

2 years ago

X^2-x-42 what is the fractored forms

igomit [66]

The factored forms of that is (x + 6) (x - 7).

If you have any questions then please leave a comment. Good luck!

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3 years ago

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Musya8 [376]

Answer:

27%

Step-by-step explanation:

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3 years ago