Please someone help me

Answer:

x = -2/7 or

x = 6/7

Step-by-step explanation:

|7x-2| + 3 = -1  subtract 3 from both sides

|7x-2| = -4 now there are two probabilities

7x-2 = -4 or

7x-2 = 4 if first probability the value of x would be:

7x-2 = -4 add 2 to both sides

7x = -2 divide both sides by 7

x = -2/7 for the second probability the value of x would be:

7x-2 = 4 add 2 to both sides

7x = 6 divide both sides by 7

x = 6/7

Step-by-step explanation:

What is 50 percent of 150? = 75.

Answer:

percentage of a number 50% of 150=75

Step-by-step explanation:

please mark me brainliest

Answer:

[tex] |4x - 1| = 37 \\ 4x - 1 = + 37 \: \: \: 4x - 1 = - 37 \\ 4x = 38 \: \: \: \: 4x = - 36 \\ x = \frac{19}{2} \: \: \: \: x = - 9 \\ \\ thank \: you[/tex]

Answer:

Step-by-step explanation:

-37 = 4x-1 = 37 (absolute value = negative and positive answer)

-37 = 4x-1

-36 = 4x

-9 = x

4x - 1 = 37

4x = 38

x = 38/4 = 19/2 = 9.5

Answer:

0.6

Step-by-step explanation:

There is 12 boxes that has 6, 5 or both out of 20 boxes.

[tex] \frac{12}{20} = 0.6[/tex]

Answer: it equals A

Step-by-step explanation:

Answer:

No its not, integers are any number that is whole, without decimals

Answer:

2(x+1)

Step-by-step explanation:

I think it's work.

Answer:

x^3/14

Step-by-step explanation:

When an exponent is raised to an exponent, you multiply the exponents. Therefore, the answer is x^2/7 * 3/4.

Answer:

Smaller angle = 70 degrees

Step-by-step explanation:

Supplementary angles = add up to 180 degrees

let x = bigger angle

smaller angle = (x/2) + 15

x + (x/2) + 15 = 180

x + 0.5x + 15 = 180

1.5x = 165

x = 110

180 - 110 = 70

or

(x/2) + 15 = (110/2) + 15 = 55 + 15 = 70

Answer:

y=4

Step-by-step explanation:

8y+1=6y+9

8y-6y=9-1

2y=8

y=4

-4 × 10² is written in correct scientific notation.

Answer:

b=21

Step-by-step explanation:

P=2(a+b)

54=2(6+b)

54=12+2b

2b+12=54

2b=54-12

2b=42

b=21

6*21 (area)=126

I hope I helped!

How to verify my answer:

P=2(6+21

P=(12+42)

P=54

AHA! So my answer is correct!

Hope I helped!

Answer:

t=3.3*[tex]10^{-6}[/tex]

Step-by-step explanation:

t=[tex]\frac{S}{v}[/tex]

As

S=1m

v=3*[tex]10^{5}[/tex]ms^-1

t=[tex]\frac{1}{3*10^{5} }[/tex]

t=3.3*[tex]10^{-6}[/tex]

Answer:  According to the universe in which your light only moves at 3x10^5 meters/sec, it would take 3.333x10^-6 seconds to go 1 meter.  Where I live (Earth in the Milky Way Galaxy), light travels 3x10^8 m/s.  It only requires 3.33x10^-9 second.  So there . . .

Step-by-step explanation:

The speed of light is in units of meters/sec.   If it is 3x10^5 meters/sec, we can also write the inverse:

1 sec/3x10^5 meters  [It takes 1 sec to go 3x10^5 meters]

Do the division to find seconds per 1 meter:  3.333x10^-6 seconds.

-------

For Milky Way inhabitants, the division is 1 sec/3x10^8 meters, or 3.33x10^-9 second.  Time flies for them.

Answer:

30

Step-by-step explanation:

2/3*x=20

2x=20*3

x=60/2

x=30

Answer:

Step-by-step explanation:

                                                                                                                        thomas age is 47

Thomas is 47 and Hulian is 38.

Answer:

x = 71 and y = 45

Step-by-step explanation:

Answer:

solid

Step-by-step explanation:

solid..... ......!!!!!!!!

Answer:

beryllium is a solid substance

Step-by-step explanation:

Answer:

Step-by-step explanation:

It is rational because it doesn't have infinite decimals

Answer:

Step-by-step explanation:

The volume is [tex] V=l\times w \times h[tex]

So

[tex]V=4x \cdot 5x\cdot (x^2+x+2)\\=20x^2\cdot (x^2+x+2)\\=20x^4+20x^3+40x^2.[/tex]

Step-by-step explanation:

line a slope (x coefficient)= -2/3

Parallel lines have the same slope and will never intersect.

line b slope = -2/3

line equation =

y =mx + b

m = slope

y= -2/3 x + b

from the point given (-2,1)

x = -2

y = 1

1 = 4/3 + b

b = -1/3

b equation =

y = (-2/3)x - (1/3)

Answer:

990

Step-by-step explanation:

99+88+77+66+55+44+33+22+11+11+22+33+44+55+66+77+88+99=990

Answer:

19) x = 48

20) y = 21

Step-by-step explanation:

19)

7x - 248 + x + 44 = 180

(because they're supplementary angles)

8x - 204 = 180

8x = 180 + 204

8x = 384

x = 48

20)

2y + 50 + 5y - 17 = 180

7y + 33 = 180

7y = 180 - 33

7y = 147

y = 21

A relative frequency table is used to display the proportion of variables, in a tabular form.

(a) Draw the Relative Frequency

To do this, we simply divide the frequency of each response by the total frequency.

The total frequency is:

[tex]Total = 326 + 304 + 992 + 257 + 61[/tex]

[tex]Total = 1940[/tex]

So, the calculation of the relative frequency table is as follows:

[tex]Never = \frac{326}{1940}=0.168=16.8\%[/tex]

[tex]Rarely = \frac{304}{1940}=0.157=15.7\%[/tex]

[tex]Sometimes = \frac{992}{1940}=0.511=51.1\%[/tex]

[tex]Most\ times = \frac{257}{1940}=0.132=13.2\%[/tex]

[tex]Always = \frac{61}{1940}=0.031=3.1\%[/tex]

The relative frequency table is:

[tex]\left[\begin{array}{ccc}{Response}&{Frequency}&{Relative\ Frequency}\\Never&326&16.8\%\\Rarely&304&15.7\%&Sometimes&992&51.1\%&Most\ Times&257&13.2\%&Always&61&3.1\%\end{array}\right][/tex]

(b) Percentage that responds always.

From the above calculation, we have:

[tex]Always = 3.1\%[/tex]

Hence, 3.1% responds always

(c) Percentage that responds never or rarely.

From the above calculation, we have:

[tex]Never = 16.8\%[/tex]

[tex]Rarely =15.7\%[/tex]

So, we have:

[tex]Never\ or\ Rarely = Never + Rarely[/tex]

[tex]Never\ or\ Rarely = 16.8\%+ 15.7\%[/tex]

[tex]Never\ or\ Rarely = 32.5\%[/tex]

Hence, 32.5% responds never or rarely.

(d) The frequency bar graph

To do this, we plot the response against the frequency

See attachment for bar graph

Read more about relative frequency table at:

https://brainly.com/question/11875948

Answer:

On the coordinate plane, a line with a positive slope passes through the points (0, negative 1) and (1, 1).

Answer:

y=-5x+1

Step-by-step explanation:

hope it helps you

Answer:

There are no values of   y

that make the equation true.

No solution

Step-by-step explanation:

Absolute value of a number gives the positive quantity of the number.

For instance,

[tex]|3|=3, |-3|=3[/tex]

From this example, therefore we know that

[tex]\text{If }|x|=a,\text{ then }x=a\text{ or } -a. [/tex]

--------------------------------------------

In this question,

[tex]-2|2.2x-3.3|=-6.6[/tex]

[tex]|2.2x-3.3|=3.3[/tex]

[tex]2.2x-3.3=3.3\text{ or } -3.3[/tex]

[tex]2.2x=3.3+3.3 \text{ or }-3.3+3.3[/tex]

[tex]2.2x=6.6\text{ or } 0[/tex]

[tex]x=3\text{ or } 0[/tex]

Answer:

X = 3

Step-by-step explanation:

2(2.2x - 3.3) = 6.6

4.4x - 6.6 = 6.6

4.4x = 6.6 + 6.6

4.4x = 13.2

4.4x = 13.2

4.4 4.4

X = 3

Answer:

C and D

Step-by-step explanation:

[tex] \frac{k}{2} = \frac{1}{2} k = k \div 2[/tex]

Answer:

c and d

Step-by-step explanation:

yes thats the answer