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3 years ago

Find the value of x.A. 90 B. 70 C. 20 D. 50

Mathematics

1 answer:

emmasim [6.3K]3 years ago

7 0

Answer: B. 70

Step-by-step explanation:

i actually can't tell but i think this is right

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Solve 2x2 + 4x = 6 by factoring.

Reil [10]

Answer:

all work is shown and pictured

5 0

3 years ago

HELPPPPPPPPPPPPPPPPPPPPPPPP!!!!!!!!!!!!!!

snow_lady [41]

Answer:

A. The area is $78.54m^2$

B. She needs to cover 1661.9 square feet of tiles for the base of the swimming pool

Step-by-step explanation:

Question A:

Let us assume that the leash is pegged to the ground using a stake. as a result, the dog can move around the stake. The path that the motion of the dog would trace is a circle, and the radius of the circle will be the length of the leash.

Since we know this, we can easily find the area of the circle using $\pi r^2$

Area of the circle = $\pi \times 5 \times 5 = 78.54m^2$

Question B

Dulce wants to cover the whole surface area of the floor of the circular swimming pool with tiles.

We already know that the swimming pool is circular, hence, the surface area of the base of the swimming pool will be the same as the area of a circle, with the same radius.

The area of the circle can be calculated using $\pi r^2$

Area of circle = $\pi \times 23 \times 23 = 1661.9ft^2$

8 0

2 years ago

What is the opposite of |-74|?

Svetlanka [38]

Answer:

It's 74

Step-by-step explanation:

It will be positive 74 i.e, +74

3 0

2 years ago

Read 2 more answers

Select two polynomials that have a sum of 16n^3+13n^2+7n-10 A. 8n^3 - 5n +11n^2 - 5 B. 7n^2 + 8n - n^3 + 2 C. 15n^2 - 10n + 3n^3

andreyandreev [35.5K]

Answer:

Step-by-step explanation:

We have the polynomial

$16n^3+13n^2+7n-10$ ( 1 )

To solve this problem we have to take into account that only we can sum term with the same order in the variable. We have the polynomials

$8n_{3}-5n+11n^{2}-5\\7n^2 + 8n - n^3 + 2\\15n^2 - 10n + 3n^3 - 4\\2n^2 + 12n - 5 + 8n^3$

we can note (by summing term by term) that only the sum of the first and the fourth equation correspond to the given polynomial ( 1 ) of the problem. If we organize these polynomials (that is, write the equation down in a form where higher order appears first ) we have

$8n^3 +11n^2 - 5n - 5\\ 8n^3+2n^2 + 12n - 5\\$

and if we sum we obtain

$16n^3+13n^2+7n-10$

that is what we was looking for

I hope this is useful for you

regards

7 0

2 years ago

12) Maxine went to the

Anna35 [415]

$0.29 * 3 = $0.87
$0.98 * 2 = $1.96
$1.39 * 1 = $1.39

0.87 + 1.96 = 2.83
2.83 + 1.39 = 4.22

10.00 - 4.22 = $5.78

she will get $5.78 back!

4 0

3 years ago

Find the value of x.A. 90 B. 70 C. 20 D. 50​

Find the value of x.A. 90 B. 70 C. 20 D. 50