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2 years ago

7

Easy question - giving brainly is correct and work is shown!

1 answer:

Ymorist [56]2 years ago

4 0

Answer:

the answer is 102 pls mark brainlest

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Isosceles triangle ABC is shown below. What is the value of x?

vovangra [49]

Answer:

Where is the triangle shown below?

Step-by-step explanation:

6 0

2 years ago

Factor x^4 + x y^3 + x^3 + y^3 completely. Show your work.

andrey2020 [161]

$\bf x^4+xy^3+x^3+y^3\impliedby \textit{now let's do some grouping}
\\\\\\
(x^4+xy^3)~~+~~(x^3+y^3)\implies x(x^3+y^3)~~+~~(x^3+y^3)
\\\\\\
\stackrel{\stackrel{common}{factor}}{(x^3+y^3)}(x+1)\\\\
-------------------------------\\\\
\textit{now recall that }\qquad \qquad \textit{difference of cubes}
\\ \quad \\
a^3+b^3 = (a+b)(a^2-ab+b^2)\qquad
a^3-b^3 = (a-b)(a^2+ab+b^2)\\\\
-------------------------------\\\\
(x+y)(x^2-xy+y^2)(x+1)$

5 0

3 years ago

Is 2.12359..... rational???

den301095 [7]

Answer:

No

Step-by-step explanation:

Rational numbers are those that can be represented in a fraction form.

2.12359.... cannot be represented in a fraction form.

So, it is NOT a rational number

6 0

3 years ago

Read 2 more answers

What is the surface area of a cone that has a radius of 8 feet and a slant height of 12 feet? (Use 3.14 for π.)

kodGreya [7K]

Answer:

Surface area of cone is $502.4\ ft^2$

Step-by-step explanation:

Given:

radius of a cone (r) = 8 feet

slant height of cone (l) = 12 feet

We need to find the surface area of cone.

Total surface area of cone = Area of circle $+$ Area of curved surface

Now we know that,

Area of circle = $\pi r^2$

Area of curved surface = $\pi rl$

Hence Total surface area of cone = $\pi r^2+\pi rl=\pi r(r+l) = 3.14 \times 8 (8+12)=3.14\times8\times20= 502.4 \ ft^2$

Surface area of cone is $502.4\ ft^2$ .

4 0

3 years ago

2x=20+20<br>Find the value of x

NikAS [45]

Answer:

$\sf\longmapsto \: x = 20$

Step-by-step explanation:

$\sf\longmapsto \: 2x = 40$

$\sf\longmapsto \: x = \frac{40}{2}$

$\sf\longmapsto \: x = 20$

7 0

3 years ago

Read 2 more answers