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Lilit [14]
3 years ago
15

Does anyone know what the answer please??

Mathematics
1 answer:
olchik [2.2K]3 years ago
5 0

Answer:

x=4

Step-by-step explanation:

im pretty sure you make the equation equal to eachother so its 9x+4=5x+20

combine like terms

4x=16

x=1/4

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Consider the following frequency table representing the scores on a test.
Anvisha [2.4K]

The number of scores between 19.5 and 49.5 using the cumulative frequency is <u>16</u>.

<h3>What is the cumulative frequency?</h3>

The cumulative frequency is the running total of frequencies over some class intervals.

The frequency refers to the number of elements in the set or class.

Therefore, the cumulative frequency is the sum of all previous frequencies up to the required point.

<h3>Data and Calculations:</h3>

Scores on a Test

Class    Frequency   Cumulative Frequency

20–29         9                        9 (0 + 9)

30–39         4                       13 (9 + 4)

40–49         3                      16 (13 + 3)

50–59         2                      18 (16 + 2)

60–69        10                    28 (18 + 10)

Thus, the number of scores between 19.5 and 49.5 using the cumulative frequency is <u>16</u>.

Learn more about cumulative frequencies at brainly.com/question/21807065

#SPJ1

4 0
2 years ago
Write the equation of a line that is perpendicular to the given line and that passes through the given point. y= 2/3x + 9 ; (–6,
matrenka [14]

Answer:

y = - \frac{3}{2} x - 4

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = \frac{2}{3} x + 9 ← is in slope- intercept form

with slope m = \frac{2}{3}

Given a line with slope m then the slope of a line perpendicular to it is

m_{perpendicular} = - \frac{1}{m} = - \frac{1}{\frac{2}{3} } = - \frac{3}{2}, thus

y = - \frac{3}{2} x + c ← is the partial equation

To find c substitute (- 6, 5) into the partial equation

5 = 9 + c ⇒ c = 5 - 9 = - 4

y = - \frac{3}{2} x - 4 ← equation of perpendicular line

5 0
3 years ago
Write a function of cytokinin
Ugo [173]
Produce new leaves
Chloroplasts in leaves
Lateral shoot growth
Adventitious shoot formation
8 0
3 years ago
HELP ME PLEASE I HAVE BEEN DOING THIS FOR TWO HOURS, I BEG OF YOU‍♀️‍♀️
BabaBlast [244]

Answer:

  • The first factor is itself the sum of two terms
  • The solution is the product of two factors

Step-by-step explanation:

The math symbols of the expression include parentheses, a plus sign, and a multiplication symbol. The order of operations tells you to do the "plus" operation inside parentheses first. The numbers involved in a "plus" operation, or sum, are called "terms." The result is their sum.

Then the second operation in the order of operations is to do the multiplication of the sum on the left of the multiplication symbol by the number to the right of the multiplication symbol. The numbers involved in multiplication are called "factors". The result of multiplication is called a "product."

Matching up this vocabulary with what you see, you realize ...

  • the first factor is the sum of two terms
  • the end result of evaluating the expression is the product of two factors
6 0
4 years ago
The dot plots below show the ages of students belonging to two groups of music classes
nasty-shy [4]
I would say A because their is a lower variety of number than their are for group B. idk tho im bad
3 0
3 years ago
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