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Lesechka [4]
2 years ago
13

GIVING 100 POINTS! just answer these 5 and ignore my answers, unless they are somehow correct!

Mathematics
1 answer:
oee [108]2 years ago
6 0

#1

  • (-3,1)
  • (3,-3)

\\ \sf\longmapsto m=\dfrac{-3-1}{3+3}=\dfrac{-4}{6}=\dfrac{-2}{3}

<h3>Slope of the line perpendicular to it (Reciprocal of line slope)</h3>

\\ \sf\longmapsto \dfrac{-3}{2}

Option B

#2

Attached(1)

#3

Attached (2)

#4

Attached (3)

#5

  • (-3,7)
  • (3,3)

\\ \sf\longmapsto Slope=m=\dfrac{3-7}{3+3}=\dfrac{-4}{6}=\dfrac{-2}{3}

Put in slope intercept form

\\ \sf\longmapsto y=mx+b

\\ \sf\longmapsto 3=\dfrac{-2}{3}(3)+b

\\ \sf\longmapsto 3=b-2

\\ \sf\longmapsto b=3+2=5

Equation of the line:-

\\ \sf\longmapsto y=\dfrac{-2}{3}x+5

Option C

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X=4i/3,-4i/3

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8 0
3 years ago
Telemarketing. the probability that a call will reach a live person is 0.2. the calls are independent. (a) a telemarketer places
Sergeeva-Olga [200]

Solution: Telemarketing. the probability that a call will reach a live person is 0.2. the calls are independent. (a) a telemarketer places 5 calls. what is the probability that none of them reaches a live person.

Answer: The given random experiment can be considered as binomial experiment with probability of success = 0.2 and number of trials = 5

Therefore, we have:

n=5,p=0.2,q=(1-p)=1-0.2=0.8

Let x be the number calls that reach to live person.

We have to find P(x=0)

Using the binomial probability distribution, we have:

P(x=0)=\binom{5}{0}0.2^{0} (1-0.2)^{5-0}

                 =1 \times 1 \times 0.8^{5}

                 =0.3277

Therefore, the probability that none of them reaches a live person is 0.3277


6 0
3 years ago
In parallelogram ABCD, base AD is 15 and side AB is 8. What are the height and area of paralelogram ABCD if mDAB is 20?
Goshia [24]

Step-by-step explanation:

✰ \underline{ \underline{ \large{ \tt{G\: I \: V \: E \: N}}}} :

  • AD = 15 , AB = 8 , \angle DAB

✰ \underline{ \underline{ \large{ \tt{T \: O \: \: F\: I \: N \: D}}}} :

  • Height & Area of the given parallelogram

✰ \underline{ \underline{ \large{ \tt{S \: O \: L \: U \: T\: I\: O \: N}}}} :

In right angled triangle ABE :

  • Hypotenuse ( h ) = 8
  • Perpendicular ( p ) = h [ height ]
  • \theta = 20°

Now , Using trigonometric ratio :

\large{ \tt{Sin \theta \:  = \:  \frac{Perpendicular}{Hypotenuse}  }}

Plug the known values :

⟶ \large{ \tt{ Sin(20)  =  \frac{h}{8} }}

⟶ \large{ \tt{0.34 =  \frac{h}{8}}}

⟶ \large{ \tt{h = 0.34 \times 8}}

⟶ \large{ \tt{h = 2.72}}

Now , We have :

  • Base ( b ) = 15
  • Height ( h ) = 2.72

Finding the area of a parallelogram whose base and height are 15 and 2.72 respectively :

❀ \underline{ \underline{ \text{Area \: of \: parallelogram =  \tt{b   *\:  h}}}}

⟶ \large{ \tt{A = 15  *2.72}}

⟶ \large{ \tt{A = 40.8 \:  {units}^{2} }}

Hence , Our final answer :

\large{ \boxed{ \sf{Height \: ( \: h \: ) = 2.72 \: units}}}

\large{ \boxed{ \sf{Area \: of \: parallelogram \: ( \:A \: ) = \: 40.8 \:  {units}^{2} }}}

Hope I helped ! ♡

Have a wonderful day / night ! ツ

# \underbrace{ \tt{Carry \: On \: Learning}} !! ✎

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3 0
3 years ago
Fill in missing numbers in chart. state the rule
tester [92]
On the left side, the blank is 22, but I am clueless on the right side
3 0
3 years ago
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PLS HELP WITH 22 AND 23 ILL GIVE 10 POINTS OR PLSS
Nitella [24]

Answer:

I think 22 is 18 years old

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