3 years ago

u don’t need to do the explanations for the questions. Just answer each expression with correct/incorrect. thank-you :)

Mathematics

1 answer:

tigry1 [53]3 years ago

5 0

Answer:

correct

incorrect

correct

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Find the volume of the composite solid. Round your answer to the nearest tenth.

beks73 [17]

Answer:

The answer is 646 cm³.

Step-by-step explanation:

Firstly you have to seperate the solid into 2 shaoes, hemi-sphere and cube. Then calculate the volumes using the formula.

Given that the diameter of cube is 8cm so the radius is 8÷2 = 4cm :

Sphere,

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

Let r = 4 cm,

$v = \frac{2}{3} \times\pi \times {4}^{3}$

$v = \frac{2}{3} \times \pi \times 64$

$v = \frac{128}{3} \pi \: \: {cm}^{3}$

Cube,

$v = l \times w \times h$

Let length be 8cm,

Let width be 8 cm,

Let height be 8 cm,

$v = 8 \times 8 \times 8$

$v = 512 \: \: \: {cm}^{3}$

Lastly, you have to add up both volumes together :

$v = \frac{128}{3} \pi + 512$

$v = 646 \: {cm}^{3} \: (near.tenth)$

3 0

3 years ago

What is the slope of the line that passes through the points (5,-25) and (10, -15)

Salsk061 [2.6K]

<h2>Answer:</h2>

All you need to do is use the slope formula: y₂ - y₁/x₂ - x₁.

$\frac{-15 - (-25)}{10 - 5}\\\\\frac{10}{5} = 2$

Always simplify the fraction!

4 0

3 years ago

Tom is on a diet. His diet plan allows him to have 1,000 calories for dinner. He’s chosen a menu of enchiladas (537 calories), a

dexar [7]

Tom would not be staying on his diet if he ate that meal. He would be consuming 1,344 calories instead of his 1,000 he is trying to have.

Hope this helps!

8 0

3 years ago

Anyone thats gives me the right answers, I will give brainliest to!

lubasha [3.4K]

Answer:

1: 60

2: 1,200

3:8

4:720

5:1020

6:1260

Step-by-step explanation:

If you divide 240 by 4 you should get $60 a day. If I did my math correctly the answers should be right.

3 0

3 years ago

Read 2 more answers

A package of 50 blank CDs costs $25 however the store has run out of 50-packages. the manager agrees to sell your packages of 12

frosja888 [35]

Answer:

Step-by-step explanation:

$25 divided by 50 = 50 cents a CD

50 cents = 0.5

Now do,

$12 x 0.5 = $6

8 0

3 years ago