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Phoenix [80]
3 years ago
8

Find the slope of the line which is perpendicular to a line having a slope of 5/7

Mathematics
1 answer:
erica [24]3 years ago
3 0

Answer:

-7/5

Step-by-step explanation:

5/7

= -7/5

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The length of each side of a square is 3 in. more than the length of each side of a smaller square. The sum of the areas of the
dolphi86 [110]

Answer:

Step-by-step explanation:

let the smaller square be A, and the side is a

larger square is B, the side is a+3

Area(A)=a^2

Area(B)=(a+3)^2

a^2+(a+3)^2=425 in^2

a^2+a^2+6a+9=425

2a^2+6a=425-9

2(a^2+3a)=416 we divide by 2

a^2+3a=208

we solve the quadratic function

we will get two roots, a(1)=13, and the negative answer we will ignore

a=13 and the side of the larger square is 13+3=16

6 0
2 years ago
4. Write an equation of the vertical line that passes through the point (-2,-8)
lys-0071 [83]
X=-2
You can know this because when you have only an x value you graph it by drawing a line straight up from there because there is every possible y value.
6 0
3 years ago
There is a line that includes the point (3, 7) and has a slope of 1. What is its equation in
NemiM [27]

Answer:

Y=1x+7

Step-by-step explanation:

y=mx+b

m: slope

b: y axis

6 0
3 years ago
11. A quiz has 10 multiple choice questions with 3 choices for each question. Answer the following for someone who randomly choo
11111nata11111 [884]

The required probability for
a. 0.2058
b. 0.98  
c.0.016

<h3>
What is probability?</h3>

Probability can be defined as the ration of favorable outcomes to the total number of events.

Let use binomial distribution.
Probability answering a question correctly=1/3 =0.33
Probability of not answering a question correctly
=1–1/3
=2/3
a) Out of 10 probability of answering 4 correctly

=10c4 x (0.33)^4 x (0.66)^6

Upon simplification, 0.2058

b) Find the probability for getting at least 2 correct answers
= 1 - { 10c8 x (0.33)^8 x (0.66)^2+ 10c9 x (0.33)^9 x (0.66)^1 + (0.33)^10}
= 0.98

c).Find the probability for getting 2 or 3 incorrect answers.


10c8 x (0.33)^8 x (0.66)^2 + 10c7 x (0.33)^7 X (0.66)^3
=0.002 + 0.014

= 0.016

Thus the required probabilities are: 0.2058, 0.98 , 0.016

Learn more about probability here:

brainly.com/question/14290572

#SPJ1


4 0
2 years ago
Lines a and b are parallel.<br><br><br> What is the measure for angle t?
Strike441 [17]

Answer:

158 degrees

Step-by-step explanation:

We know that Lines A & B are parallel, meaning that the angels would also be parallel.

ex)

angle y = angle x

angle z = angle r

So therefore:

<h2>angle t = 158 degrees.</h2>

Can I be marked brainly?

7 0
2 years ago
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