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katovenus [111]
3 years ago
14

Will give brainliest 100 points Given: Q = 7m + 3n, R = 11 - 2m, S = n + 5, and T = -m - 3n + 8.

Mathematics
1 answer:
gulaghasi [49]3 years ago
6 0

Answer:

-3m-4n+14 (D)

Step-by-step explanation:

R-S+T=

<em>Substitute the Values given</em>

(11-2m)-(n+5)+(-m-3n+8)=

<em>Open Parenthesis</em>

11-2m-n-5-m-3n+8=

<em>Combine Like Terms</em>

-3m-4n+14

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3 years ago
O<br> How can you explain, without just using a rule, why 4.2 = 0.2 is the<br> same as 42 = 2?<br> I
Softa [21]

Ratio-wise it is the same :)

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42 : 2

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6 0
3 years ago
What is the lateral surface area of this right pyramid with a square base?
Brums [2.3K]

Answer:

The lateral surface area of a square pyramid is the sum of the areas of the side faces only, whereas the surface area is the lateral area + area of the base. The lateral area of a square pyramid = 2al (or) 2a√[(a 2 /4) + h 2]. To get the surface area, we need to add the area of the base (which is a 2) to each of these formulas.The surface area of a square pyramid = a 2 + 2al (or) a 2 + 2a[(a 2 /4) + h 2]. where, a = Length of the base (square) l = slant height; h = height of the pyramid.

Step-by-step explanation:

hope this helps if not let me know have a great day :)

7 0
2 years ago
You spin the spinner once.
faust18 [17]

Answer:

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Step-by-step explanation:

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3 0
2 years ago
(50 points to answer 3 questions)
snow_tiger [21]

Answer:

y = −55x + 275

The initial value is 5

Mike's distance from home when he begins cycling

Step-by-step explanation:

The equation of a line is

y= mx+b where m is the slope and b is the y intercept

The y intercept is 275

Two points are (0,275) and (5,0)

The slope is (y2-y1)/(x2-x1) = (0-275)/(5-0) = -275/5 =-55

y = -55x+275

The initial value is when x = 0

When x = 0 , y = 5

y = 12-2x

Rewriting

y = -2x+12

This is in the form y = mx +b where the slope is -2 and the y intercept is 12

12 is the initial value or when x = 0.  It would be the distance that he needs to cover.  He needs to go from the library to his house.

5 0
3 years ago
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