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disa [49]
3 years ago
11

Help anyone can help me do this question,I will mark brainlest.​

Mathematics
2 answers:
skad [1K]3 years ago
7 0

Answer:

144 cm²

Step-by-step explanation:

<u>Finding square STUV's side lengths:</u>

Square the area of square STUV to find the side lengths.

√169 = 13

Therefore, the side lengths of square STUV are 13 cm.

<u>Finding triangle VRS last side length:</u>

Since we now have 2 out of 3 side lengths for triangle VRS and it's a right triangle, we can use Pythagorean Theorem to find the last leg.

a² + b² = c²

a² + 5² = 13²

a² + 25 = 169

a² = 144

√a² = √144

a = 12

Therefore, the last side length is 12 cm.

<u>Square PQRV's area:</u>

Now that we know the side length of square PQRV is 12 cm, simply square the value to find the area.

12² = 144

Therefore, the area of square PQRV is 144 cm².

Elina [12.6K]3 years ago
6 0
144 square cm
Do the Pythagorean theorem
Since sTUV is a square one side is 13 cm
So 5^2 + x^2 = 13^2
25+ x^2 = 169
x^2 = 144
So side rv is 12 cm
Since pqrv is a square you square 12 cm and get 144 square cm for the area.
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If 6700 is invested at a 4.6% interest compounded semi annually how much will the investment be worth in 15 years
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5 0
3 years ago
The sum of Bobbi's and Dan's heights is 130 inches. Dan's height subtracted from 3 times Bobbi's height is 118 inches. What are
Xelga [282]

Answer:

Dan = 68

bobbi = 62

Step-by-step explanation:

Let Bobbi's height = b

Let Dan's height = d

the following equations can be determined from the question

b + d = 130  eqn 1

3b - d = 118  eqn 2

Multiply eqn 1 by 3

3b + 3d = 390  eqn 3

Substract eqn 2 from 3. this gives

4d = 272

d = 68

Substitute for d in eqn 1

b + 68 = 130

b = 62

6 0
3 years ago
(4x - 3) × (x + 2)=0
matrenka [14]

Hi,

AxB = 0 means A=0. or B=0

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4x-3= 0

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x = 3/4

and x+2 = 0.

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solutions are : -2 +and 3/4

7 0
2 years ago
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Shane is using pieces of square paper to cover a cube shaped gift with sides that are 9 inches long to find out the area of the
nordsb [41]

Answer:

The area of the cube is 486 inches^2

Step-by-step explanation:

In this question, we are tasked with calculating the area of cube with side 9 inch.

Mathematically, the area can be calculated using the formula A = 6s^2

Now, what we need to do is to substitute 9 inches for s

Thus, A = 6 * 9^2

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3 0
3 years ago
Please i need help with the answers this is due later on today
Nutka1998 [239]

Answer:

384, 216, 290, 192, 384

1446, 1 roll

Step-by-step explanation:

For rectangular boxes, calculate the sum of each side, then multiply it by two.

Box 1: 2(18 x 5) + 2(18 x 4) + 2(5 x 4) = 364

Box 3: 2(11 x 8) + 2(8 x 3) + 2(3 x 11) = 290

Box 5 is a cube (all sides equal), so you can find 1 side's area and multiply it by 6.

Box 5: 6(8 x 8) = 384

For triangular boxes, calculate the edges, then find the triangular area using area = 0.5(base x height).

Box 2: (15 x 3) + (9 x 3) + (12 x 3) + 2(0.5)(9 x 12) = 216

Box 4: 2(13 x 2) + (10 x 2) + 2(0.5)(10 x 12) = 192

Total: 364 + 290 + 384 + 216 + 192 = 1446

Rolls of wrapping paper:

Area of 1 roll = 30 x 60 = 1800

Since 1446 is less than 1800, you only need 1 roll of wrapping paper.

8 0
3 years ago
Read 2 more answers
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