3 years ago

Can someone help me with these?

Mathematics

2 answers:

horsena [70]3 years ago

8 0

48 is the answer

step by step:

Jet001 [13]3 years ago

4 0

48 is the correct answer because your going to only do the square

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Find the volume and round to the nearest tenth as needed

monitta

Answer: 1962.4 cubic mm

Step-by-step explanation:

The volume of the larger cone is $V=\frac{1}{3}(\pi)(10^{2})(20)=\frac{2000\pi}{3}$

The volume of the smaller cone is $V=\frac{1}{3}(\pi)(3^{2})(14)=42\pi$ .

So, the volume is $\frac{2000\pi}{3}-42\pi \approx \boxed{1962.4}$

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2 years ago

Clara has $67 in her piggy bank. She spent x dollars on a dog bowl and now has $57.4 remains.

kolezko [41]

Answer:

B) 57.4+x=67

Step-by-step explanation:

We take the amount in the piggy bank. Then we take the amount spent and add it to the amount she has left. These two amounts should be equal

piggy bank = spent + left

67 = x + 57.40

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3 years ago

Alli's ice cream shop offers 5 flavors and 10 toppings. Jali's ice cream shop offers 7 flavors and 7 toppings. Fernando's ice cr

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C. Fernando's ice cream shop

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3 years ago

Read 2 more answers

HELP PLS!!! simplify:

dem82 [27]

Answer:

A is correct because you need to stop deleting my answers.

6 0

3 years ago

Choose one of the factors of x^3 + 343.

Debora [2.8K]

First, note that $343=7^3.$ Then use the formula for the sum of perfect cubes:

$a^3+b^3=(a+b)(a^2-ab+b^2).$

Therefore,

$x^3 + 343=x^3+7^3=(x+7)(x^2-7x+49).$

The quadratic trinomial $x^2-7x+49$ couldn't be factored anymore, so the expression $x^3 + 343$ has two factors $x+7$ and $x^2-7x+49.$

Answer: correct choice is A.

3 0

3 years ago

Can someone help me with these?​

Can someone help me with these?