3 years ago

Which of the following criteria are necessary conditions for making a statistical inference?

Mathematics

2 answers:

ANEK [815]3 years ago

6 0

#1 & 4 are the correct answerss

Vlad [161]3 years ago

3 0

Answer:

1 and 4 are correct

Step-by-step explanation:

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A concession stand at a baseball game sells 3 apples for $2.00.How can you find the cost for 10 apples?

ElenaW [278]

Answer: 3 divided by 2 = 1.50

1.50×10=15

Step-by-step explanation:

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2 years ago

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The sum of 7 ⅓ and a number, n is 10 ⅜. What is the number?

solmaris [256]

Answer:

3 1/24

Step-by-step explanation:

to find the answer subtract ( 10 3/8 - 7 1/3 = 3 1/24 ).

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2 years ago

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Find the equation of all tangent lines having slope of -1 that are tangent to the curve y=(9)/(x+1)

fredd [130]

Answer:

$f(x)=\frac9{x+1}\\ f'(x)=-\frac9{(x+1)^2}\\ f'(x)=-1\ \iff\ -\frac9{(x+1)^2}=-1\ \to \ \frac9{(x+1)^2}=1\ \to \ (x+1)^2=9\\ |x+1|=3\ \to \ x+1=3\ \vee\ x+1=-3\\ x_1=2\ \vee\ x_2=-4\\ f(x_1)=f(2)=\frac9{2+1}=3\\ f(x_2)=f(-4)=\frac9{-4+1}=-3$

First tangent line:

$y=f'(x_1)\cdot (x-x_1)+f(x_1)\ \to \ y=-1(x-2)+3\ \to \ y=-x+5$

Second tangent line:

$y=f'(x_2)\cdot (x-x_2)+f(x_2)\ \to \ y=-1(x+4)-3\ \to \ y=-x-7$

Notice: slope of -1 means that both $f'(x_1), \ f'(x_2)$ are equal to -1, so $f'(x_1)=-1 \ and \ f'(x_2)=-1$

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2 years ago

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Please answer correctly !!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!!

Elis [28]

Answer:

MQ = 16 units

Step-by-step explanation:

$\frac{x}{14}$ = $\frac{9}{63}$

x = $\frac{14*9}{63}$ = 2

MQ = 14 + 2 = 16 units

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2 years ago

Find the value of x and y that will make each quadrilateral a parallelogram.

Tatiana [17]

Answer:

the opposite Angles sum up to give 180

Step-by-step explanation:

3y +3y = 180

y=30

if y = 30 the x = 55

are you clear?

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2 years ago

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