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marin [14]
3 years ago
12

Please answer!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
2 answers:
mezya [45]3 years ago
4 0

Answer:

D

Step-by-step explanation:

You have 2 5 12 13 right triangles.

x = 2 * 5

x = 10

Pepsi [2]3 years ago
3 0

Answer:

D. x=10

Step-by-step explanation:

You can use the Pythagorean Theorem, a^2+b^2=c^2, where a and b are the legs and c is the hypotenuse.

12^2+b^2=13^2\\144+b^2=169

<em>Subtract 144 from both sides</em>

b^2=25

<em>Square root both sides</em>

b=5

2b=x\\b=5\\x=10

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Which answer is correct!?!?
Naya [18.7K]
46%d+57%y=55%x42
x+y=42

Find y

x=42-y

46%(42-y)+57%y=23.1
19.31-46%y+57%y=23.1
11%y=23.1-19.31
11%y=3.79
y=34

The answer is D
6 0
3 years ago
50 POINTS find the length of ab plz help me
Umnica [9.8K]

Answer:

about 9.4 units

Step-by-step explanation:

Distance formula:

√(x1 - x2)² + (y2 - y1)²

Coordinates:

A (4, 2)

B (9, 10)

Let's make 9 = x1

Let's make 4 = x2

Let's make 10 = y1

Let's make 2 = y2

Substitute into the distance formula:

√(x1 - x2)² + (y2 - y1)²

√(9 - 4)² + (2 - 10)²

Solve:

√(9 - 4)² + (2 - 10)²

√(5)² + (-8)²

√25 + 64

√89

≈ 9.4

Therefore, the length of AB is approximately 9.4 units.

7 0
3 years ago
Read 2 more answers
Add (11x + 2) + (9x - 4).
trasher [3.6K]
11x + 2 = 13x, 9x - 4 = 5x, 5x + 13x = 18x
3 0
3 years ago
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Find the missing side or angle.<br> Round to the nearest tenth.
BartSMP [9]

Answer:

b = 2.7

Step-by-step explanation:

Given:

< C = 53°

< B = 80°

a = 2

Required:

Find b

Solution:

The question given suggests we are given measures for a ∆.

To find side b, which corresponds to angle B, first, we'd find angle A, which corresponds to side a, then apply the Law of sines to find side b.

=> A = 180 - (53 + 80) = 47°

Law of Sines: \frac{a}{sin(A} = \frac{b}{sin(B}

Plug in the values into the formula

\frac{2}{sin(47} = \frac{b}{sin(80}

Cross multiply

2*sin(80) = b*sin(47)

Divide both sides by sin(47) to make b the subject of formula

\frac{2*sin(80)}{sin(47} = b

2.69 = b

b = 2.7 (nearest tenth)

8 0
2 years ago
Need math help please
solmaris [256]

Answer:

it is 4

Step-by-step explanation:

3 times 4 = 12 and 12 + 8 = 20

brainliest plz!!!


7 0
2 years ago
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