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xenn [34]
2 years ago
12

CAN SOMEONE PLEASE GIVE ME A FULL EXPLANATION ON HOW TO DO THESE TYPES OF PROBLEMS BECAUSE I HAVE ABSOLUTELY NO IDEA ON HOW TO D

O THEM AND ALSO PLEASE GIVE THE ANSWER, THANK YOU!!!
Write an equation of the line passing through point P that is perpendicular to the given line.
P(4,−3), y=−x−5
Mathematics
2 answers:
Furkat [3]2 years ago
6 0

keeping in mind that perpendicular lines have negative reciprocal slopes, let's check for the slope of the equation above

\bf y = -x-5\implies y = \stackrel{\stackrel{m}{\downarrow }}{-1}x\stackrel{\stackrel{b}{\downarrow }}{-5}\qquad \impliedby \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}

so it has a slope of -1, or we can say -1/1, thus

\bf \stackrel{\textit{perpendicular lines have \underline{negative reciprocal} slopes}} {\stackrel{slope}{-1\implies \cfrac{-1}{1}}\qquad \qquad \qquad \stackrel{reciprocal}{\cfrac{1}{-1}}\qquad \stackrel{negative~reciprocal}{+\cfrac{1}{1}\implies 1}}

so, we're really looking for the equation of a line whose slope is 1 and runs through (4,-3)

\bf P(\stackrel{x_1}{4}~,~\stackrel{y_1}{-3})~\hspace{10em} \stackrel{slope}{m}\implies 1 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-3)}=\stackrel{m}{1}(x-\stackrel{x_1}{4}) \\\\\\ y+3=x-4\implies y=x-7

nlexa [21]2 years ago
3 0

Answer:

I'll give u an example

Step-by-step explanation:

First, put the equation of the line given into slope-intercept form by solving for y. You get y = 2x +5, so the slope is –2. Perpendicular lines have opposite-reciprocal slopes, so the slope of the line we want to find is 1/2. Plugging in the point given into the equation y = 1/2x + b and solving for b, we get b = 6.

**Please rate brainliest and vote 5 stars  and give thanks**

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Jan buys 3 bags of beads. Each bag contains 7 beads. Draw a bar diagram and write an addition equation and a multiplication equa
-Dominant- [34]

Answer:

  - The diagram bar is attached.

  - Addition equation:  7+7+7=21

  - Multiplication equation: (3)(7)=21

  -  How are the equation related? Each equation shows 3 groups of 7.

Step-by-step explanation:

We know that Jan buys 3 bags of beads and each bag contains 7 beads, then, you can draw the bar diagram shown attached.

 Observe that the diagram has 3 blocks (each block represents a bag of bead) and there is a number 7 inside of each block (which is the number of beads contained in a bag).

Therefore:

- Add the numbers inside the blocks in order to get the addition equation that shows the number of  beads Jan buys. This is:

7+7+7=21

- Multiply 3 blocks by 7 in order to get multiplication equation that show the number of beads Jan buys:

(3)(7)=21

The equations are related. Each one shows 3 groups of 7.

6 0
2 years ago
Pleaseee helpppp asapppp tysmmm <3
STatiana [176]

Answer:

Really I mean just ugh really 3 gallons is by far the biggest

Step-by-step explanation:

16 cups are one gallon

3 fluid ounces is 0.37 cups

Please for the love of God actually learn this don't just cheat your way to an A

Oh and a teaching lesson

8 fluid ounces is rounded up to a cup

2 cups make a pint

2 pints make a quart

2 quarts make half a gallon

2 half gallons make a gallon

3 0
2 years ago
Find the sum and the product of the roots of the equation:<br><br> x^2−37x+27=0
lawyer [7]

Answer:

Sum of the Roots = 37

Product of the Roots = 27

Step-by-step explanation:

Here, the given expression is  x^{2}  - 37x + 27 = 0

Now the general Quadratic Equation is of the form:

ax^{2}  + bx + c = 0

Here, Sum of the Roots = -(\frac{b}{a} )

and the Product of the Roots =  (\frac{c}{a} )

So, comparing the general equation with the given equation, we get:

a = 1, b = -37 and c = 27

So, Sum of the Roots = -(\frac{-37}{1} )  =  37

and the Product of the Roots =  (\frac{27}{1} ) = 27

6 0
3 years ago
Can someone please answer this question?!!!!!!!!
Mashutka [201]

Let's treat that one as a 4 by 8 rectangle with a 2 by 4 right triangle chopped out of the corner.

A = 4×8 - (1/2)×2×4 = 32 - 4 = 28

Answer: 28


8 0
3 years ago
I'LL MARK FIRST CORRECT ANSWER BRAINLIEST !!!
shutvik [7]
It would be answer choice A or 5
4 0
2 years ago
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