Please help me for gods sake:(

Answer:

95%

Step-by-step explanation:

Do the math it's pretty easy.

When the weight of laboratory grasshoppers follows a normal distribution, with a mean of 90 grams and a standard deviation of 2 grams, 95% of grasshoppers weigh between 86 and 94 grams.

Normal distribution, also known as the Gaussian distribution, is a probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.

Let W be the sample of weight of laboratory grasshoppers.

W follows N(90, 2)

To calculate P(86 < W < 94)

[tex]P ( 86 < W < 94 ) \\\\P ( \frac{86 - 90}{2} < \frac{W - 90}{2} < \frac{94 - 90}{2} )\\\\P(-2 < Z < 2)\\[/tex]

= 95% (approximately)

(using excel function NORM.S.DIST(2,TRUE)-NORM.S.DIST(-2,TRUE))

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Answer:

The situation is linear and proportinal

Step-by-step explanation:

Hopes this help!!

The situation is linear and proportional for Joanna is paid $10 per hour.

A linear equation is an equation in which the highest power of the variable is always 1. It is also known as a one-degree equation. The standard form of a linear equation in one variable is of the form Ax + B = 0. Here, x is a variable, A is a coefficient and B is constant.

Given,

Joanna is paid $10 per hour.

Let earnings of Joanna is y and number of hours be x

then,

Joanna earning in x hours

y = 10x

Which is linear equation

and

y/x = 10 = k

Earning and number of hours are proportional.

Hence, Joanna is paid $10 per hour is linear and proportional situation.

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Answer:

11x

Step-by-step explanation:

Follow PEMDAS

Parenthesis

(8.1 + 7.9) = 16

(25 / 5) = 5

Multiply

16 * x = 16x

5 * x = 5x

Subtract

16x - 5x = 11x

.................... :)) equation->>> y=-1-4

Answer: y = -7

Step-by-step explanation:

y = mx  +  b

y = -1(3) + -4

y = -3  - 4

y =  -7

Answer:

d. 7 and 16; 8 :14,4:7 and 16:28.

Answer:

D. 7 and 16; 8 : 14, 4 : 7, and 16 : 28

Step-by-step explanation:

1. the first ratio for 8 and 14 is 4 : 7. so that would eliminate the first two answer choices.

2. since the ratio is 4 : 7, that would mean the second value for buses is 7 because the second value for taxis is 4. and the second values for both taxis and buses would be equal to the ratio.

3. 28 is the third value for the bus. and since the ratio is 4 : 7, you have to find the value that 7 can be multiplied by to get 28. 7 multiplied by 4 is 28. you also have to multiply the first number of the ratio (4) by 4. and the product would be 16.

4. So the final answer is D.

Answer:

Step-by-step explanation:

Given that:

There are 96 automobile accident fatalities in Connecticut and 44 were alcohol related.

The null hypothesis and the alternative hypothesis for this study can be computed as:

[tex]H_o: P =0.39 \\ \\ H_1:P> 0.39[/tex]

The sample proportion [tex]\hat p[/tex]= 44/96 = 0.45833

Using the Z formula for a single proportion test, we get;

[tex]Z = \dfrac{\hat p - P }{\sqrt\dfrac{{P(1-P)}}{{n}}}[/tex]

[tex]Z = \dfrac{0.45833 - 0.39 }{\sqrt\dfrac{{0.39(1-0.39)}}{{96}}}[/tex]

[tex]Z = \dfrac{0.06833 }{\sqrt\dfrac{{0.39(0.61)}}{{96}}}[/tex]

[tex]Z =1.37[/tex]

The p-value = 1 -P(Z< 1.37)

The p-value = 1 - 0.9147

The p-value = 0.0853

At the level of significance (∝) 0.05 ;

Since p-value is greater than level of significance (∝);  we accept the null hypothesis and conclude that there is no sufficient evidence to say that higher percentage of alcohol is related to automobile fatalities.

Answer:

y = $1.25x

Step-by-step explanation:

Given that :

Profit made per sale = $1.50

Number of sales made on hottest day of summer = 125 ; Profit made = $187. 50

Let profit Made = y

Number of snowballs sold = x

Profit made = profit made per snowball sold * Number of snowballs sold

y = $1.25x

$187.50 = $1.25(125)

Answer:

3(4+5) = 3(4) + 3(5)

Step-by-step explanation:

in distributive property, you multiply the number outside the parenthesis by both of the numbers inside, but still keeping the sign the same.

Answer:

b

Step-by-step explanation:

Answer:

up 1 over 3

Step-by-step explanation:

Answer:

x=45

Step-by-step explanation:

weights and routes

weights and routes

weights and routes

VvvvVV

The amount of snow on the ground when the storm started is the y- intercept of graph which is 5 inches.

The y- intercept of a graph gives the value y when the value of x = 0.

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Answer:

clara will reach more than toby

Answer:

d

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

weewoo

Step-by-step explanation:

Answer:

Option 4, Line M is a horizontal line with a slope of zero

Step-by-step explanation:

Answer:

3 socks

Step-by-step explanation:

Given that, there are 10 red socks and 10 blue socks which are mixed up in the dresser drawer.

The socks are identical except the color.

We need to find out, the minimum number of socks to be taken out from the dark room so that there is at least a pair of matching socks comes out of the drawer.

Let us consider the cases:

First Two socks pulled out of the drawer.

Case 1: Both are red or both are blue.

In this case, the matching pair is ready.

But there can be other case as well.

Case 2:

One red and one blue color taken out.

Now, when we pull the third, there will be either red or blue.

That will make a pair.

Therefore, to cover up all the cases and to be certain to get a matching pair out of the drawer, at least 3 socks must be taken out.

So, the answer is:

We need to take out at least 3 socks.

The number of socks that determines a matching pair is an illustration of probabilities

The smallest number of socks is 3

The number of socks is given as:

[tex]\mathbf{Red = 10}[/tex]

[tex]\mathbf{Blue = 10}[/tex]

There are two colors of socks in the drawer

This is represented as:

[tex]\mathbf{n = 2}[/tex]

So, the smallest number of socks to determine matching pair is

[tex]\mathbf{Smallest = n + 1}[/tex]

Substitute 2 for n

[tex]\mathbf{Smallest = 2 + 1}[/tex]

Add

[tex]\mathbf{Smallest = 3}[/tex]

Hence, the smallest number of socks is 3

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Answer:

Step-by-step explanation:

it is a

Answer:

The answer is 3/20 or 0.15 as a decimal.

Step-by-step explanation:

Answer:

5 (n - 3) = 12

Step-by-step explanation:

5 (n - 3) = 12

Answer:

The answer is A. (-8,-6)

Step-by-step explanation:

I had guessed on my quiz and somehow got it right lol

u – v in component form and is  (-8,-6).

We have given that,

Vector u has initial point at (6, 8) and a terminal point at (3, –2).

Vector v has initial point at (–4, –3) and a terminal point at (1, –7).

The component form of a vector is the ordered pair that describes the changes in the x- and y-values.

u – v in component form and is  (-8,-6).

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Answer:

2,-2,-6,-10

Step-by-step explanation:

hope this helps

y=(−4)(−1)−2

y=2

y=(−4)(0)−2

y=−2

y=(−4)(1)−2

y=−6

y=(−4)(2)−2

y=−10

Answer:

Store=$190 for 10 movies a month

Online=$15 for 10 movies a month

Step-by-step explanation:

times price by number of movies

Answer:

n=98

Step-by-step explanation:

i think but don't get mad at me if I get it wrong

Answer:

80 miles per hour

Answer:

[tex] \sqrt{50 } \times \sqrt{4} [/tex]

Answer:

c i think

Step-by-step explanation:

Answer:

_ (repeating)

3. d=3.16

4. v=1.4

5. b=3

Step-by-step explanation:

Answer:

3) d= 1.9

4) v= 1.4

5) b= 6

Step-by-step explanation:

On 3, you divide the 5 to have the D be alone

same thing with 4

On 5, you add the -3 to the other side to keep numbers together, and the -3 becomes positive