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mr_godi [17]
3 years ago
13

Elena collected 431

Mathematics
1 answer:
grandymaker [24]3 years ago
8 0

Answer:

Step-by-step explanation:

2o4 because 431 minus 227 is 204

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Simplifying fractions (picture provided)
stich3 [128]

Answer:

2 1/4

Step-by-step explanation:

- 5 1/4 - ( - 7 1/2)

Subtracting a negative is like adding

- 5 1/4 + 7 1/2

Get a common denominator of 4

-5 1/4 + 7 2/4

Subtract

7 2/4 - 5 1/4

2 1/4

6 0
3 years ago
Read 2 more answers
Find the eighth term of the following geometric sequence 14,-7, 7/2
Korolek [52]
7/32
Keep the pattern going. A(n)=A(n-1)*-1/2
14, -7, 7/2, -7/4, 7/8, -7/16, 7/32
5 0
3 years ago
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15) 3x2 y4 z − 6xy − 3z(5x2) How many terms are in the expression?
klio [65]
Ok name the expressions we both know 3z is one 5x is one 6xy is one do you think 3x^2y^4z is an expression i would give you the answer but i also want you to understand the problem and what your looking for to in the equation
6 0
3 years ago
you were given 15$ from your auntie to go to the mall. you spend 6$ on snacks, and 5$ on shirt on your way to the car,you found
Finger [1]
The answer would be 14





Explanation:
If you look on a number line and start from 15 then from there you minus 6 which equals 9 then you minus 5 which equals 4 and add 10 which equals 14 and that 14 is on the positive side of the number line. So 14 is your answer.
5 0
4 years ago
Find a vector equation and parametric equations for the line The line through the point (2, 2.4, 3.5) and parallel to the vector
BartSMP [9]

Answer:

The vector equation

r = (2 + 3t)i+ (2.4 + 2t)j+ (3.5   - t)k

The parametric equation

x = 2 + 3t\\y = 2.4 + 2t\\z = 3.5-t

Step-by-step explanation:

Given

Point  = (2,2.4,3.5)

Vector = 3i + 2j - k

Required

The vector equation

First, we calculate the position vector of the point.

This is represented as:

r_0 = 2i + 2.4j + 3.5k

The vector equation is then calculated as:

r = r_o + t * Vector

r = 2i + 2.4j + 3.5k + t * (3i + 2j - k)

Open bracket

r = 2i + 2.4j + 3.5k + 3ti + 2tj - tk

Collect like terms

r = 2i + 3ti+ 2.4j + 2tj+ 3.5k   - tk

Factorize

r = (2 + 3t)i+ (2.4 + 2t)j+ (3.5   - t)k

The parametric equation is represented as:

x = x_0 + at\\y = y_0 + bt\\z = z_0 + ct

Where

r = (x_0 + at)i +(y_0 + bt)j+(z_0 + ct)k

By comparison:

x = 2 + 3t\\y = 2.4 + 2t\\z = 3.5-t

4 0
3 years ago
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