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3 years ago

2 2/8 - 1 7/8 = ?please help me

Mathematics

2 answers:

kirza4 [7]3 years ago

7 0

Answer:

2 2/8 - 1 7/8 = 3/8

diamong [38]3 years ago

6 0

Answer:

0.375 or 3/8 you welcome

Step-by-step explanation:

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Triangle ABC has side length of 14, 8 and 10.4 what are the possible side lengths of a triangle DEF if ABC is similar to DEF

defon

Answer:

<em>DEF can have possible side lengths of 28, 16, 20.8</em>

Step-by-step explanation:

<u>Triangle Similarity</u>

If the three sides of two triangles have the same proportion, the triangles are similar (SSS theorem).

Triangle ABC has side lengths of 14, 8, and 10.4.

Any other triangle whose side lengths are the same lengths of ABC multiplied by a constant scale factor is similar to ABC.

For example, select scale factor 2. Thus, the triangle of side lengths 2*14=28, 2*8=16, and 2*10.4=20.8 is similar:

DEF can have possible side lengths of 28, 16, 20.8

Any other scale factor will do.

8 0

3 years ago

The stopping distance of a car is modeled by the function d = 0.05r(r + 2) where d is the stopping distance of the car measured

adell [148]

Answer:

The car was moving approximately at a speed of 37.74 miles per hour.

Step-by-step explanation:

We are given the following in the question:

The stopping distance of a car is given by

$d = 0.05r(r + 2)$

where d is the stopping distance in feet and r is speed of the car in miles per hour.

The stopping distance is 75 feet, we have to find the speed of the car,

Putting d = 75 in the equation, we get,

$75 = 0.05r(r + 2)\\r^2 + 2r = 1500\\r^2 + 2r-1500 = 0\\\\r =\dfrac{-2\pm \sqrt{4-(4)(1)(-1500)}}{2}\\\\r\approx -39.74,37.74$

Thus, the car was moving approximately at a speed of 37.74 miles per hour.

3 0

3 years ago

Is 0.444444444444444... a rational number? explain

ehidna [41]

No, it is an irrational number. It repeats

No, it is an irrational number because it does not terminate/end

4 0

3 years ago

When multiplying by 10 how many spaces do you move the decimal point

shusha [124]

Answer:

If you multiply a decimal by 10, the decimal point will move one place to the right. If you divide a decimal by 10, the decimal point will move one place to the left.

Step-by-step explanation:

Multiplying a decimal by 10 increases the value of each digit by 10. Multiplying a decimal by a power of 10 increases the value of each digit by a number of times that is equivalent to that power of 10. When a digit's value is changed, that digit is moved to the appropriate place.

3 0

3 years ago

Consider the graph of f(x) below. The graph contains the points (0, 1) and (5, 4).

Bezzdna [24]

Answer:

f(x)=x+3

Step-by-step explanation:

hope this helps

5 0

3 years ago

2 2/8 - 1 7/8 = ?please help me ​

2 2/8 - 1 7/8 = ?please help me