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NeTakaya
3 years ago
7

The triangles are similar.

Mathematics
2 answers:
galben [10]3 years ago
8 0
21 21 beacause 7x3 is 21
myrzilka [38]3 years ago
4 0
21 is the value of x. the bigger triangle is three times the size of the smaller rectangle. so you multiply all of the sides of the smaller triangle by 3 to get the sides of the bigger triangle.
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Which expression shows the result of applying the distributive property to 3(1/5 x - 1/7)
steposvetlana [31]

Answer:

o.6x- 0.42857142857

Step-by-step explanation:

7 0
2 years ago
Joseph is creating a dilation through point B with a scale factor of 2. Which statements about the dilation are correct? Check a
swat32

Answer:

Options (1), (2) and (4).

Step-by-step explanation:

Given question is incomplete; Find the complete question in the attachment.

Triangle ABC is a right triangle.

ΔABC has been dilated by a scale factor of 2 forming ΔA'B'C'.

These are the observations,

1). A and A' will be co-linear.

2). Since the given triangle has been dilated about a point B therefore, after dilation vertex B and B' will at be same location.

3). Length of B'C' = 2BC

4). AB and BC are the segments which will lie on the sides BA' and BC'.

5). Pre-image ABC will be inside the image A'B'C'.

Therefore, Options (1), (2) and (4) will be the answer.

4 0
3 years ago
Read 2 more answers
An object is launched at 29.4 meters per
Lerok [7]

Answer:

The reasonable domain for the scenario is option 'a';

a) [0, 7]  

Step-by-step explanation:

For the projectile motion of the object, we are given;

The speed at which the object is launched, v = 29.4 meters per second

The height of the platform from which the object is launched, h = 34.3 meter

The equation for the height of the object as a function of time 'x' is given as follows;

f(x) = -4.9·x² + 29.4·x + 34.3

The domain for the scenario, is given by the possible values of 'x' for the function, which is found as follows;

At the height from which the object is launched, x = 0, and f(x) = 34.3

At the ground level to which the object can drop, f(x) = 0

∴ f(x) = -4.9·x² + 29.4·x + 34.3 = 0

-4.9·x² + 29.4·x + 34.3 = 0

By the quadratic formula, we have;

x = (-29.4 ± √(29.4² - 4 × (-4.9) × 34.3))/(2 × (-4.9)

∴ x = -1, or 7

Given that time is a natural number, we have the reasonable domain for the scenario as the start time when the object is launched, t = 0 to the time the object reaches the ground, t = 7

Therefore, the reasonable domain for the scenario is; 0 ≤ x ≤ 7 or [0, 7].

4 0
3 years ago
Solve 2x+6 ≤ 10 or 2x + 8 > 20.
Firlakuza [10]

Answer:

<h2>A. x ≤2 or x>6</h2>

Step-by-step explanation:

2x+6 ≤ 10  or  2x + 8 > 20

⇔ 2x ≤ 4  or  2x > 12

⇔ x ≤ 2  or  x > 6

6 0
2 years ago
Plss answer it correctly...I need asap​
lina2011 [118]

Answer:

sorry I cannot understand that

4 0
2 years ago
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