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Sidana [21]
3 years ago
9

-5×3+7×4-54÷9+2 ( step by step explanation pls do fast...)​

Mathematics
1 answer:
Nana76 [90]3 years ago
6 0

Answer:

9

Step-by-step explanation:

-5×3+7×4-54÷9+2

-5×3+7×4-6+2

-15+28-6+2

-15-6+28+2

-21+30

9

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In triangle LMN, the measure of m_L =75°and m_M is one-half m_N. what is m_M?
Svetach [21]
Let m(<N) be x;
We have m(<M) = 1.5x;
We solve the equation: 75 + x + 1.5x = 180;
75 + 2.5x = 180;
2.5x = 105;
x = 105 ÷ 2.5;
x = 42;
Finally, m(<M) = 63 degrees;
4 0
3 years ago
What is the remainder when 9,857 is divided by 82? A) 16 B) 17 C) 19 D) 21
nignag [31]

Answer:

B) 17

Step-by-step explanation:

9857/82=120.....

120*82=8940

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6 0
4 years ago
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The graph depicts the growth and costs using of line segment use the midpoint formula to approximate the cost during the year 19
marysya [2.9K]

Answer:

The approximate cost during the year 1987 was $7,533

Step-by-step explanation:

The complete question in the attached figure

we have

y -----> is the cost in dollars

x -----> is the year

Looking at the graph we have the points

(1983,5,047) and (1991, 10,019)

To determine the cost in the year 1987, find out the midpoint between the two given points

The formula to calculate the midpoint between two points is equal to

M=(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})

substitute the values

M=(\frac{1983+1991}{2},\frac{5,047+10,019}{2})

M=(1987,7,533)

therefore

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7 0
4 years ago
What is the slope of the segment shown for a staircase with 10-inch treads and 7.75-inch risers? As you walk up (or down) the st
s2008m [1.1K]

The formula for slope is

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The slope Is 0.775.

The vertical distance is not continuous, thus it is discrete. A discrete function only allows certain points in the interval. When you walk up or down the stairs, the vertical distances are not continuous because of the treads. You cannot stay also mid-air, so it should be discrete. An example of a continuous function would be when you walk up or down an inclined plane. 

8 0
3 years ago
What is the solution of this system of linear equations? 3y = x + 6 y – x = 3
Greeley [361]
Hello :
<span>3y = x + 6 ...(1)
y – x = 3...(2)
by (2) : y = x+3...(*)
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3x-x= -9+6
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3 0
3 years ago
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