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drek231 [11]
3 years ago
15

I am building a fence in my backyard. I have 120 nails, and I need to put 4 nails

Mathematics
2 answers:
Vsevolod [243]3 years ago
8 0
120/4 is 30
You'll be able to put 4 nails thirty times.
You put them every 6 feet
So, you have 5 feet before running out.
Mama L [17]3 years ago
4 0
5 feet because 120 divided by 4 is 30
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Hi I have these couple of questions here I'm really confused and I've been working on all of these for about three days now but
m_a_m_a [10]

Answer:

First Image:

1. 3/10

2. 9/10

3. 10

4. -5/3

5. 2/5

6. -5/2

Second Image:

10. y=x-2

Third Image:

1. y=-4/3x-3

2. y=4x-4

3. y=-3/4x+4

4. y=1/3x+3

Step-by-step explanation:

    When graphing linear lines, there are just a few, simple things to look out for. The first thing is to look at how far the line goes until it goes through a second point. The second thing is to look at where the line crosses on the y-axis (the vertical barrier). When writing an equation for a linear line, the standard form is y=mx+b, where m is a placeholder for the slope of the line and b is the placeholder for the y-intercept (where the line crosses the y-axis). If the line goes from the upper left to the lower right, the slope is negative. On the other hand, if the line goes from the lower left to the upper right, the slope is positive. When deciding what the slope is, remember that it is written as Rise/Run. So, for example, the second problem in the first image shows a line that goes from the lower left to the upper right, meaning that the slope will be positive. Now, if you look at the red dot at the bottom of the line, just count each box upwards, until you are level with the other red dot at the top right of the graph. Once you have gotten your number (it should be nine), just count the boxes going to the right of where you ended, all the way until you reach the red dot at the top right (you should have counted 10). Now that you have those two numbers, you are able to plug them into Rise/Run. Since you went up nine blocks and right ten blocks, you would write the slope as 9/10. The slope is positive, therefore there is no sign in front of the slope. However, if the slope was negative, then you'd write it as -9/10. Now that you have the slope, you can plug it into the equation. The equation should now look like this: y=9/10x+b. Lastly, you must find the y-intercept. In order to do this, just simply look at the y-axis (the bolded, center line) to see where the line crosses. You should see that it crosses at the halfway point between one and zero, meaning the y-intercept is 1/2, or 0.5. With this, once again plug the value into the equation, which should now look like this: y=9/10x+1/2. With that, the problem has been solved! I hope this helps you out. Good luck!

5 0
2 years ago
Which of the following regression models is used to model a nonlinear relationship between the independent and dependent variabl
snow_tiger [21]

Answer:

Option C) Quadratic regression model

Step-by-step explanation:

Quadratic regression model

  • It is regression model in which states a non-linear relationship between the independent and dependent variables.
  • It includes the dependent variable and the square of the independent variable.
  • \hat{y}= b_0 + b_1x + b_2x^2

where x is the independent variable and \hat{y} is the dependent variable.

  • It is also referred to as second-order polynomial model.
  • It is used when the data shape resembles to a parabola.

Thus, the correct answer is

Option C) Quadratic regression model

6 0
3 years ago
Read 2 more answers
B. 21cm 32° L 122° D 0 The perimeter of kite LODI is 74 cm. Find:
Elis [28]

1) Angles IDO and ILO are congruent, and both measure 122 degrees. So, as angles in a quadrilateral add to 360°, angle LOD measures 360-122-122-32=84°

2) As referred to in the first question, angle ODI measures 122°

3) In a kite, there are two pairs of disjoint congruent sides. This means that in this case, ID=IL=21 and LO=OD. As the perimeter is 74, this means LO=(74-21(2))/2=16

4) LI=ID, so ID=21

4 0
2 years ago
Your brother eats 1/6th of your birthday pizza. If the pizza has a diameter of 12 inches, what is the area that he ate
Kipish [7]

Answer:

18.84 in^2

Step-by-step explanation:

Area brother ate = 1/6 x area of pizza

a pizza is the shape of a circle. the area of a pizza is equal to the area of a circle

Area of a circle = πr²

r = 12/2 = 6

he diameter is the straight line that passes through the centre of a circle and touches the two edges of the circle.

A radius is half of the diameter

3.14 x 6^2 = 113.04

1/6 x 113.04 = 18.84

7 0
3 years ago
F(x)=-11x-2 and g(x) =7x-4 find (f°g)(x)​
tatyana61 [14]

Answer:

- 77x + 42

Step-by-step explanation:

note that (f ○ g)(x) = f(g(x)

Substitute x = g(x) into f(x)

f(g(x))

= f(7x - 4)

= - 11(7x - 4) - 2

= - 77x + 44 - 2

= - 77x + 42

7 0
3 years ago
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