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Phoenix [80]
3 years ago
13

Plzzzzzzzzzzzzzzzz help meeeeeeeeeeeeeeeeeeeeee if u do ill give u a dollar

Mathematics
2 answers:
Georgia [21]3 years ago
8 0

Answer:

3x + 15 = 90

Step-by-step explanation:

hope this helps!

myrzilka [38]3 years ago
6 0

Answer:

B

x is the price of the sweater so 3x  and add $15 for the skirt which would add up to $90

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In the following figure, EM is tangent to circle A at point C.
Sphinxa [80]

Answer:

A must be true

Step-by-step explanation:

Since ABE and angle ACE are right angles the rest of the 2 angles are right angles either therefore EC = AB

6 0
3 years ago
Question 1
svetoff [14.1K]

Answer:

B.) 8x + 12

Step-by-step explanation:

Using the Distributive Property the 4 is multiplied by each number inside the parentheses

4*2x = 8x

4*3 = 12

8x+12

8 0
3 years ago
Read 2 more answers
If the base of a rectangle is 12 cm and the area is 250.8 cm2 what is the height of the rectangle
Sergio039 [100]
So to find the area of a rectangle, the formula is
B (base) x H (height)= A (area)
12 cm x H = 250.8 cm^2
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6 0
3 years ago
in a box of 36 pencils 20 are sharpened what is the ratio of sharpened pencils to unsharpened pencils ​
OleMash [197]

Answer:

20 : 16

or if you have to reduce then the answer is 5 : 4

Step-by-step explanation:


4 0
3 years ago
Exercises gives the positions s = f(t) of a body moving on a coordinate line, with s in meters and t in seconds.
SashulF [63]

Hi there!

a. Find the displacement by plugging in the values of the interval:

f(2) - f(0) = 0 - 2 = -2 meters.

Average velocity is the slope, thus:

v_{avg} = \frac{f(2) - f(0)}{2 - 0} = \frac{0 - 2}{2 - 0} = -1

The average velocity for the interval is -1 m/s.

b. To find the speed at the endpoints, we must take the derivative to get the velocity equation:

f(t) = t² - 3t +2

f'(t) = 2t - 3, at t = 0, speed = |-3| = 3 m/s. At t = 2, speed = 2(2) - 3 = 1 m/s.

Acceleration is the second derivative, thus:

f''(t) = 2. The acceleration is 2 m/s² for both endpoints.

c. When the body changes direction, the first derivative changes signs. Thus:

0 = 2t - 3

3 = 2t, t = 1.5 sec. This is where the body changes direction.

8 0
2 years ago
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