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Romashka [77]
3 years ago
15

Which would be appropriate compatible numbers to use to estimate ( 19 4 5 ) ( 4 6 ) ? Using this compatible number, what is the

estimated product?
Mathematics
1 answer:
MA_775_DIABLO [31]3 years ago
8 0

The appropriate compatible numbers to use to estimate would be 20(1/2)

estimated product is 10, took the quiz :)

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Rewrite the following survey question to remove any bias:
bulgar [2K]

Answer:

which do you prefer going, English or math class.

Step-by-step explanation:

4 0
3 years ago
2x + y =5 solve the system of equations by inspection
olga2289 [7]

Answer:

Slope=− 2.000/4.000 =−2.000

x−intercept= 2/5=2.50000

y−intercept= 1/5=5.00000

Step-by-step explanation:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :          

2*x+y-(5)=0

Tiger recognizes that we have here an equation of a straight line. Such an equation is usually written y=mx+b

"y=mx+b" is the formula of a straight line drawn on Cartesian coordinate system in which "y" is the vertical axis and "x" the horizontal axis.

In this formula :

y tells us how far up the line goes

x tells us how far along

m is the Slope or Gradient i.e. how steep the line is

b is the Y-intercept i.e. where the line crosses the Y axis

The X and Y intercepts and the Slope are called the line properties. We shall now graph the line  2x+y-5  = 0 and calculate its properties

Notice that when x = 0 the value of y is 5/1 so this line "cuts" the y axis at y= 5.00000

 y-intercept = 5/1  =  5.00000

When y = 0 the value of x is 5/2 Our line therefore "cuts" the x axis at x= 2.50000

 x-intercept = 5/2  =  2.50000

Slope is defined as the change in y divided by the change in x. We note that for x=0, the value of y is 5.000 and for x=2.000, the value of y is 1.000. So, for a change of 2.000 in x (The change in x is sometimes referred to as "RUN") we get a change of 1.000 - 5.000 = -4.000 in y. (The change in y is sometimes referred to as "RISE" and the Slope is m = RISE / RUN)

   Slope     = -4.000/2.000 = -2.000

8 0
3 years ago
Show that 3/8 ÷ 7/12 =9/14
myrzilka [38]
3/8*12/7 = 36/56 = 9/14 (simplify)
4 0
3 years ago
How many distinct seven-digit phone numbers can you create from the numbers 4, 4, 5, 6, 7, 7, 7? (e.g. 445-6777 is one example)?
iris [78.8K]
You have 7 numbers, two numbers 4 , one 5, one 6 and three numbers 7.

From these 7 numbers you can create 7!=1\cdot2\cdot3\cdot4\cdot5\cdot6\cdot7=5040 phone numbers, but they are not all different.

If you have two numbers 4, then you have to divide obtained number by 2! (the number of all possible permutations of two numbers 4) and since you have three numbers 7 you should divide the obtained number by 3! (<span>the number of all possible <span>permutations of three numbers 7</span>). Then</span><span /><span>
</span><span>
</span><span>\dfrac{5040}{2!\cdot 3!}= \dfrac{5040}{1\cdot2\cdot1\cdot2\cdot3}=420.</span>

Answer: You can create 420 different phone numbers.<span />
4 0
3 years ago
Which of the following are solutions to the equation below? Check all that apply. 4x2 - 81 = 0 A. 9 B.-9/2 C.-2/9 D.-9 E.9/2 F.2
steposvetlana [31]
I guess the answer is e
4 0
3 years ago
Read 2 more answers
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