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3 years ago

-61=8- 1/3(12w+42)-w W=?

Mathematics

1 answer:

motikmotik3 years ago

7 0

W=11 hope this helps

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Which pairs of rectangles are similar polygons?

Ganezh [65]

The pairs of rectangles are similar polygons; Option C and Option D.

<h3>What is a polygon?</h3>

A polygon is a closed figure made up of three or more line segments connected end to end.

Similar polygon beings their sides have equivalent ratios to each other.

Two polygons whose corresponding angles are congruent and the lengths of the corresponding sides are proportional.

C. 1.89/2.1 = 81/0.9 = 90

D. 120 / 24 = 60 / 12 = 5

Hence, Option C and Option D are similar polygons only.

Learn more about polygon here;

brainly.com/question/14422754

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7 0

2 years ago

10PTS PLEASE HELP!!!!!!!

Nostrana [21]

The equation of a circle:

$(x-h)^2+(y-k)^2=r^2$

(h, k) - a coordinates of the center

r - a radius

A diameter d = 2r

We have

$x^2+(y-2)^2=100\to r^2=100\to r=\sqrt{100}\to r=10$

Answer: d = 2 · 10 = 20

6 0

3 years ago

Help can u answer this

umka21 [38]

Answer:

$c) 82$

$d) - 11$

$g)27$

$h)1000$

$k)11$

$l) 8$

Step-by-step explanation:

${9}^{2} + 1 \\ = (9 \times 9) + 1 \\ = 81 + 1 \\ = 82$

${6}^{2} - {5}^{2} \\ = (6 \times 6) - (5 \times 5) \\ = 36 - 25 \\ = - 11$

$(1 + 2 {)}^{3} \\ = {3}^{3} \\ = 3 \times 3 \times 3\\ = 27$

$(2 + 8 {)}^{3} \\ = {10}^{3} \\ = (10 \times 10 \times 10) \\ = 1000$

$\sqrt{4} + {3}^{2} \\ = 2 + {3}^{2} \\ = 2 + (3 \times 3) \\ = 2 + 9 \\ = 11$

$2 \times 5 - \sqrt{4} \\ = 10 - \sqrt{4} \\ = 10 - 2 \\ = 8$

<h3>Hope it is helpful....</h3>

3 0

3 years ago

you know that the y-ntercept point always has an x-coodinate of 0 what number can you substitute for x in the equation to find t

Allushta [10]

Answer:

x=0

Step-by-step explanation:

Since y-intercepts lie on the y-axis, the x-coordinate must be 0.

8 0

3 years ago

Cross-multiplication is helpful in:

EastWind [94]

Answer:

i think it's B

Step-by-step explanation:

It cannot be used when performing operations—addition, subtraction, multiplication, or division

7 0

2 years ago