Hi! Pls help me with this question:

Answer:

$2,874.19

Step-by-step explanation:

Hope this helps

Answer:

-5/3

Step-by-step explanation:

We can use the slope formula

m = ( y2-y1)/(x2-x1)

   = ( -3 -7)/(6-0)

   = -10 / 6

   = -5/3

Width of the enlarged photograph = 14 cm

Length of a small photograph = 6 cm

Width of a small photograph = 4 cm

Length of the photograph when enlarged = 21 cm

Let the width of the photograph when enlarged be x.

Which means :

[tex] = \tt 4 : 6 : : x : 21[/tex]

[tex] =\tt \frac{4}{6} = \frac{x}{21} [/tex]

[tex] =\tt 4 \times 21 = 6 \times x[/tex]

[tex] =\tt 84 = 6x[/tex]

[tex] =\tt x = \frac{84}{6} [/tex]

[tex] =\tt x = 14[/tex]

Thus, the value of x = 14

Therefore, the width of the enlarged photograph = 14 cm

Answer:

4) 7k² + 9k

= k(7k + 9)

5) x² - 25

= (x)² - (5)².

(a² - b²) = (a+b)(a-b)

= (x - 5)(x + 5)

Answer:

x/3 + 6 = 14

Step-by-step explanation:

Answer:

Option B. y – 3 = –1/7(x – 3)

Step-by-step explanation:

From the question given above, the following data were obtained:

Slope (m) = –1/7

Coordinate = (3, 3)

x₁ coordinate = 3

y₁ coordinate = 3

The equation of the line can be written as follow

y – y₁ = m(x – x₁)

y – 3 = –1/7(x – 3)

Answer: how are you doing this tho

Step-by-step explanation:

The 1/3 of 5/8 as a fraction is 5/24 after applying the arithmetic operation the answer is 5/24.

Fraction number consists of two parts, one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.

It is given that:

1/3 of 5/8 as a fraction

Let x be the fraction:

x = 1/3 of 5/8

Or

x = (1/3)(5/8)

The arithmetic operation can be defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has a basic four operators that is +, -, ×, and ÷.

After multiplication:

x = 5/24

Thus, the 1/3 of 5/8 as a fraction is 5/24 after applying the arithmetic operation the answer is 5/24.

Learn more about the fraction here:

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Answer:

An improper fraction is when the numerator of the fraction is larger than the denominator

For example, 13/4 is improper because 13 > 4

An improper fraction can be changed into a mixed number by dividing the numerator by the denominator

For example, 13 divided by 4 is 3 with remainder 1, or 3 1/4

Step-by-step explanation:

Answer:

An improper fraction is when the numerator is a larger number than the denominator. An improper fraction is also what the fraction is before you simplify it down to either a whole number or a mixed number.

An example of an improper fraction simplified to a whole number is 25/5. This can be simplified down to 5.

An example of an improper fraction simplified to a mixed number is 17/3. This can be simplified down to 5-2/3.

Answer:

x=7

Step-by-step explanation:

x+5=12

 -5  -5

  x=7

Answer:

George is a good friend :)

Step-by-step explanation:

Answer:

See attachment for graph

Step-by-step explanation:

Given

[tex]y = 2^x[/tex]

Required

Plot the graph

First, we list out possible values of x and y

When [tex]x = 0[/tex]:

[tex]y = 2^0 = 1[/tex]

When [tex]x= 1[/tex]:

[tex]y = 2^1 = 2[/tex]

When [tex]x =2[/tex]:

[tex]y = 2^2 = 4[/tex]

When [tex]x = 5[/tex]

[tex]y = 2^5 = 32[/tex]

So, we plot the graph by connecting the points of the above values.

See attachment for graph

Answer:

Step-by-step explanation:

Answer:

91 000

Step-by-step explanation:

596 rounds up to 600

600 is closer to 91 000 (it's 400 away) than to 90 000 (600 away).

Answer:

Step-by-step explanation:

14r=84, r=84/14=6, so the hourly rate is $6 an hour so

y(x)=6x

Since this is of the form y/x=k or y=kx it is directly proportional. Inverse proportion is of the form yx=k or y=k/x

Answer:

C

Step-by-step explanation:

I got the answer C because if the estimated value of the tank is 50 and it gets drained it will only have 18 gallon in it

5%

3.36m inutos

2.24mi nutos

Answer:

if the period is a multiplication sign then its 135

Step-by-step explanation:

Answer:

135

Step-by-step explanation:

following the PEMDAS rule, of course

Answer:

b and d

Step-by-step explanation:

Answer:

AB = 10

CW = 8

angle BAD = 50

angle CDB = 65

angle DWA = 90

angle WCD = 25

Step-by-step explanation:

use the known facts that a rhombus = 360 degrees, pythagorean theorem, etc. if you want a full explanation lmk and i can edit my response

Answer:

a) The expected value is 75, the standard deviation is 3 and the shape is approximately normal.

b) 0.9387 = 93.87% probability that the average aptitude test in the sample will be between 70.14 and 82.14.

c) 0.0052 = 0.52% probability that the average aptitude test in the sample will be greater than 82.68.

d) 0.8907 = 89.07% probability that the average aptitude test in the sample will be less than 78.69.

e) C = 81.51.

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal probability distribution

When the distribution is normal, we use the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].

The scores on the test are normally distributed with a mean of 75 and a standard deviation of 15.

This means that [tex]\mu = 75, \sigma = 15[/tex]

a. What are the expected value, the standard deviation, and the shape of the sampling distribution of?

By the Central Limit Theorem, it will be approximately normal, with expected value [tex]\mu = 75[/tex] and standard deviation [tex]s = \frac{15}{\sqrt{25}} = 3[/tex].

b. What is the probability that the average aptitude test in the sample will be between 70.14 and 82.14?

This is the pvalue of Z when X = 82.14 subtracted by the pvalue of Z when X = 70.14.

X = 82.14

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

By the Central Limit Theorem

[tex]Z = \frac{X - \mu}{s}[/tex]

[tex]Z = \frac{82.14 - 75}{3}[/tex]

[tex]Z = 2.38[/tex]

[tex]Z = 2.38[/tex] has a pvalue of 0.9913.

X = 70.14

[tex]Z = \frac{X - \mu}{s}[/tex]

[tex]Z = \frac{70.14 - 75}{3}[/tex]

[tex]Z = -1.62[/tex]

[tex]Z = -1.62[/tex] has a pvalue of 0.0526

0.9913 - 0.0526 = 0.9387

0.9387 = 93.87% probability that the average aptitude test in the sample will be between 70.14 and 82.14.

c. What is the probability that the average aptitude test in the sample will be greater than 82.68?

This is 1 subtracted by the pvalue of Z when X = 82.68. So

[tex]Z = \frac{X - \mu}{s}[/tex]

[tex]Z = \frac{82.68 - 75}{3}[/tex]

[tex]Z = 2.56[/tex]

[tex]Z = 2.56[/tex] has a pvalue of 0.9948.

1 - 0.9948 = 0.0052

0.0052 = 0.52% probability that the average aptitude test in the sample will be greater than 82.68.

d. What is the probability that the average aptitude test in the sample will be less than 78.69?

This is the pvalue of Z when X = 78.69. So

[tex]Z = \frac{X - \mu}{s}[/tex]

[tex]Z = \frac{78.69 - 75}{3}[/tex]

[tex]Z = 1.23[/tex]

[tex]Z = 1.23[/tex] has a pvalue of 0.8907.

0.8907 = 89.07% probability that the average aptitude test in the sample will be less than 78.69.

e. Find a value, C, such that P(( x>C) = .015.

This is X when Z has a pvalue of 1 - 0.015 = 0.985. So X when Z = 2.17.

[tex]Z = \frac{X - \mu}{s}[/tex]

[tex]2.17 = \frac{X - 75}{3}[/tex]

[tex]X - 75 = 3*2.17[/tex]

[tex]X = 81.51[/tex]

So C = 81.51.

Answer:

by point slope form

(y-5)/(x-2)=-2

Answer:

3x+y=16

x−y+4=8

4x−5+y=0

Answer:

x = 54

Step-by-step explanation:

Since both triangles are similar, therefore,

[tex] \frac{UV}{PQ} = \frac{VW}{QR} [/tex]

[tex] \frac{77}{66} = \frac{63}{x} [/tex]

[tex] \frac{7}{6} = \frac{63}{x} [/tex]

Cross multiply

[tex] 7*x = 63*6 [/tex]

[tex] 7x = 378 [/tex]

Divide both sides by 7

x = 54

Answer:

1890 cubic inches

Answer: 84, 35

Step-by-step explanation:

12*7=84

5*7=35

84-35=49

The two numbers are 35 and 84

Let the two numbers be x and y

If the ratio are in 12: 5, hence:

x/y = 12/5

5x = 12y

x = 12y/5

If their difference is 49, then;

x - y = 49 .................. 2

12y/5 - y = 49

7y/5 = 39

7y = 49 * 5

y = 7 * 5

y = 35

Recall that x - y = 49

x = 49 + y

x = 49 + 35

x = 84

Hence the two numbers are 35 and 84

Learn more on equations here: https://brainly.com/question/14323743

Answer:

16.1 + 6.1=22

that is not equal because it will give you 22.2

as the answer hope this helps

have a good day :)

Step-by-step explanation:

Answer:

I think 1/4

Step-by-step explanation:

1000% ÷ 4 =250%

Step-by-step explanation:

(250÷50)/(100÷50) = 5/2 when reduced to the simplest form.

Answer:

math          way  can help

Step-by-step explanation:

Answer:

7

Step-by-step explanation: