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3 years ago

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Question 7 of 10

1 answer:

Whitepunk [10]3 years ago

6 0

Answer:

The answer is (2,7)

Step-by-step explanation:

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A convex polyhedron is made of 12 congruent faces like the one shown below. What is the name of the solid? A) dodecahedron ANSWE

Anvisha [2.4K]

Answer: dodecahedron

Step-by-step explanation:

6 0

3 years ago

7 times a number is 8 less than the square of that number. Find the negative solution.

charle [14.2K]

Answer:

-1

Step-by-step explanation:

The required relation is ...

7n = n^2 -8

0 = n^2 -7n -8 . . . . put in standard form

0 = (n -8)(n +1) . . . . factor

Solutions are n=8 and n=-1.

The negative solution is -1.

7 0

3 years ago

Algebra I WILL GIVE BRAINLIEST

docker41 [41]

Answer:

A

23/7 times 23/7

Step-by-step explanation:

5 0

3 years ago

If w=1<br> x=6 y=-3<br> 2y-5w

Dennis_Churaev [7]

Answer: -11

Step-by-step explanation:

2(-3) - 5(1) = -11

7 0

3 years ago

Read 2 more answers

We want to factor the following expression:

11Alexandr11 [23.1K]

Answer:

We have $\mathbf{U= 9x^3 \:and\:V=y+1}$

Step-by-step explanation:

We want to factor the expression $81x^6-(y+1)^2$ in the form of (U+V)(U-V)

We need to find U and V

We can use formula : $a^2-b^2=(a+b)(a-b)$

We can write $81x^6$ as $(9x^3)^2$

Now we have the expression:

$81x^6-(y+1)^2\\=(9x^3)^2-(y+1)^2$

Applying formula: $a^2-b^2=(a+b)(a-b)$

$=(9x^3+y+1)(9x^3-(y+1))\\=(9x^3+y+1)(9x^3-y-1)$

So, we have $\mathbf{U= 9x^3 \:and\:V=y+1}$

8 0

3 years ago