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2 years ago

2 x=-80 can u solve this

Mathematics

1 answer:

zaharov [31]2 years ago

4 0

Answer
x=-40
hope this helps and have a wonderful day :)

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The object on the right is made from a square-based pyramid joined to a cuboid.

spayn [35]

Answer:

Density of steel = 80.73 gm/ $cm^3$

Step-by-step explanation:

The figure is made up of cuboid and square pyramid.

Height of cuboid, h = 9 cm

Length of cuboid, l = 6 cm

Width of cuboid, w = 6 cm

Volume of cuboid is given by the formula:

$V_{Cuboid} = l \times w \times h$

$V_{Cuboid} = 6 \times 6 \times 9\\\Rightarrow V_{Cuboid} = 324\ cm^3$

Density of Wood , $D_{Cuboid}$ = 0.68g/ $cm^3$

We know that formula of Density is:

$Density = \dfrac{Weight}{Volume}$

$D_{Cuboid} = \dfrac{W_{Cuboid}}{V_{Cuboid}}\\\Rightarrow W_{Cuboid} = V_{Cuboid} \times D_{Cuboid}$

Putting the values:

$W_{Cuboid} = 324 \times 0.68 = 220.32\ gm$

Total weight = $W_{Cuboid} + W_{Pyramid}$

970 = 220.32 $+ W_{Pyramid}$

$W_{Pyramid}$ = 749.68 gm

Volume of pyramid is given as:

$V_{Pyramid}= \dfrac{1}{3} \times \text{Area of Base} \times \text{Vertical Height}$

Base is a square with side 6 cm

$V_{Pyramid}= \dfrac{1}{3} \times 6 \times 6 \times (17 -9)\\V_{Pyramid}= 96\ cm^3$

Density of Steel/Pyramid:

$D_{Pyramid} = \dfrac{W_{Pyramid}}{V_{Pyramid}}\\\Rightarrow D_{Pyramid} = \dfrac{749.68}{96}\\\Rightarrow D_{Pyramid} = 80.73\ gm/cm^3$

5 0

3 years ago

Need help<br> x-17/3=-3 <br> Have a great day

bogdanovich [222]

Answer:

x=8

Step-by-step explanation:

6 0

2 years ago

Simplify the given equation. 6 - (3x 10) 4(2 - x) = 15

mamaluj [8]

Answer:

6 − 30 x , 8 − 4 x

Step-by-step explanation:

hopefully this helps

4 0

3 years ago

Read 2 more answers

Find the value of the trigonometric ratio. Make sure to simplify the fraction if needed. plss help

Natalija [7]

Answer:

3/5

Step-by-step explanation:

sinA = opp/hyp

= 21/35

= 3/5

8 0

3 years ago

Jimmy has 50 candies. He ate 24. How much does he have left?

Alex777 [14]

Answer:

26 candies.

Step-by-step explanation:

Jimmy will have 26 candies left, because 50 - 24 = 26. Or, in other words, 24 subtracted (or ate) from 50 means 26 candies left.

Hope this helped!

8 0

3 years ago

2 x=-80 can u solve this ​

2 x=-80 can u solve this