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4 years ago

A cone is a solid that has one circular base and only one face. true or false

2 answers:

Citrus2011 [14]4 years ago

7 0

Answer: true.

The cone is made by rotating a right triangle for 360°

The base is a circle, formed by one of the leg. The other leg makes the only one face.

bearhunter [10]4 years ago

4 0

The answer for this is true

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(6x – 30° and m

k0ka [10]

9514 1404 393

Answer:

48°

Step-by-step explanation:

Supplementary angles total 180°.

m∠A +m∠B = 180°

(6x -30)° +(8x +28)° = 180°

14x = 182 . . . . . . . . . . . . . . . . divide by ° and add 2

x = 13 . . . . . . . . . . . . . . . . . . . .divide by 14

Then the measure of angle A is ...

m∠A = (6·13 -30)° = 6(13 -5)° = 6·8°

m∠A = 48°

3 0

3 years ago

Write as an expression and simplify

Alexus [3.1K]

Answer:

Part a) $(2m+7n)(2m-7n)$

Part b) $x^2-16xy+64y^2$

Part c) $216a^3b^6$

Part d) $(a^2-b^2)$

Step-by-step explanation:

Part a) The difference of the squares of 2m and 7n.

we know that

The difference of the squares formula is equal to

$(a^2-b^2)=(a+b)(a-b)$

substitute

$(2m)^2-(7n)^2=(2m+7n)(2m-7n)$

Part b) The square of the difference of x and 8y

The formula of the square of the difference between two numbers is equal to

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

substitute

$(x-8y)^2=x^2-2(x)(8y)+(8y)^2=x^2-16xy+64y^2$

Part c) The tripled product of 6a and b^2

we have

$(6ab^{2})(6ab^{2})(6ab^{2})=(6ab^{2})^3=(6^3)(a^3)(b^{2})^3=216a^3b^6$

Part d) The product of the sum of a and b and their difference

The expression is equal to

$(a+b)(a-b)$

The expression represent the difference of the squares between a and b

$(a+b)(a-b)=(a^2-b^2)$

7 0

3 years ago

PLEASE HELP ME I WILL GIVE BRAINLIEST

olga55 [171]

Answer:

It all depends on whether the smaller cylinder is wider than the taller one. If that is the case, then they would have the same volume, roughly, because they would still take up the same amount of space, just in different shapes. If they are the exact same width, then the taller one would have the larger volume, since it would have a larger volume, because it would take up more space.

Step-by-step explanation:

7 0

3 years ago

The mean output of a certain type of amplifier is 102 watts with a standard deviation of 12 watts. If 63 amplifiers are sampled,

sammy [17]

Answer:

0.97547

Step-by-step explanation:

Given That:

Mean (m) = 102

Standard deviation (σ) = 12

Sample size (n) = 63

Probability that sample mean would differ from Population mean by less than 3.4 watts

P(m - s < X < m + s)

P(102 - 3.4 < Z < 102 + 3.4)

Using the Z formula :

Zscore = (x - m) / (σ/√n)

x = 102 - 3.4 = 98.6 ; x = 102 + 3.4 = 105.4

Z = (98.6 - 102) / (12/√63) = −2.248888

P(Z < - 2.2488) = 0.012263 (Z probability calculator)

Z = (105.4 - 102) / (12/√63) = 2.2488886

P(Z < 2.2488) = 0.98774 (Z probability calculator)

0.98774 - 0.012263 = 0.97547

4 0

3 years ago

Barton detergent sells bottles of dishwashing soap. The smallest bottle they sell is 7 ounces, if Mr.Barlow buys the smallest bo

fenix001 [56]

Problem problem picture been corrupted call 863 241 9970 if you want the problem to be fixed

6 0

3 years ago