Evaluate -8z + 5 - 2x - 4 + 5x when x=2 before and after simplifying.

The value of the expression is —

Answers

Answer 1

Answer:

-8z+5-4-4+10=0

-8z=-5+4+4-10

-8z=-7

z=7/8

im not sure tho

Answer 2

The answer is -8z+7

You just have to put in number 2 to the variable x. It's really simple.


Related Questions

Find the equation of the line passing
through the points (4, 2) and (6,10).
y = [ ? ]x + [ ]

Answers

y=4x-14

(Y2-Y1)/ (X2-X1) = slope
y= Mx+b. M= slope B= y-int.

(10-2) / (6-4) = 8/2
=4

(4,2) -> choose one point then plug in

2 = 4(4)+b
2 = 16+b
b= -14

y= 4x-14

The equation of the line passing through the points (4, 2) and (6,10) is y=4x-14.

We have given the points (4, 2) and (6,10).

What is the formula for slope?

(Y2-Y1)/ (X2-X1) = slope

What is the slope-intercept form?

y= Mx+b. M= slope B= y-int.

(10-2) / (6-4) = 8/2

Slope=4

(4,2)  choose one point then plug in

2 = 4(4)+b

2 = 16+b

b= -14

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can someone help me find the area of this ​

Answers

A=A1+A2
A1 is area of rectangular
A1=w • l
A1=4 •7
A1=28 in sq
A2 is area of right angle trapezoid
A2= b1+b2/2 • h
A2=7+5.3/2 • 6
A2=12.3/2 • 6
A2=36.9 in sq

A= 28+36.9
A= 64.9 in sq

if a - b = 4 and a² - b² =12, what is the value of a + b?.

help.​

Answers

Answer:

a² - b² = ± 32

Step-by-step explanation:

⇒ a + b = 4

⇒ a = 4 - b   ... ( 1 )

Substituting this in another equation we get,

⇒ ab = -12

⇒ ( 4 - b ) ( b ) = -12

⇒ 4b - b² = -12

⇒ b² - 4b - 12 = 0

⇒ b² - 6b + 2b - 12 = 0

⇒ b ( b - 6 ) + 2 ( b - 6 ) = 0

⇒ ( b + 2 ) ( b - 6 ) = 0

⇒ b = -2, 6

Case 1: If b = -2

⇒ a = 4 - b

⇒ 4 - ( -2 ) = 4 + 2 = 6

Case 2: If b = 6

⇒ a = 4 - b = 4 - 6 = -2

Hence the numbers are 6 and -2.

⇒ a² - b² = ?

Case 1: a = 6 and b = -2

⇒ ( 6 )² - ( -2 )²

⇒ 36 - 4 = 32

Case 2: a = -2, b = 6

⇒ ( -2 )² - ( 6 )²

⇒ 4 - 36 = -32

Hence the answer for a² - b² can be ± 32 depending on the values of a and b.

hope it help a little bit.

Answer:

3

Step-by-step explanation:

I have made it in above picture

hope it helps

PLEASE HELPPP
Solve for x:
(3x−2)(x+7)=0

A) x=−23x=7

B) x=−23x=−7

C)x=23x=7

D)x=23x=−7

Answers

DI’m pretty sure it’s

Pls help just please will mark BRAINLIEST

Answers

Answer:

44.2545

Step-by-step explanation:

you can find the third angle by taking 180-(90+55)=a

a=35

use law of sines

Sin(angle)/(opposite side of angle)=Sin(another angle)/(opposite side of another angle)

so, sin(a)/A=sin(b)/B

sin(35)/33=sin(55)/x

x=sin(55)/(sin(35)/33)

x=44.2545

Hope this helps :)

PLEASE HELP!! it’s very confusing ‍♀️4 A triangle with vertices E(-9, 6), F(-6, -5),
and G(4,0) is dilated to form a triangle with
vertices E’l-3, 2), F'(-2, -13), and
G'(13,0). Which best explains the effect of
the scale factor applied to triangle EFG to form
triangle E'F'G'?
sed
d.

Answers

chickenkwktkwkrkkskrke

70:80 simplest form as a ratio

Answers

Answer:

7 : 8

Step-by-step explanation:

70 : 80 divided by 2 =

35 : 40 divided by 5 =

7 : 8

OR

70 : 80 divided by 10 =

7 : 8

[tex]

70:80 \\ = 78[/tex]

Please help on question 4.
(Questions 1, 2, and 3 have been answered.)

Answers

Answer:

Step-by-step explanation:

So, the longest tooth is 4 3/4 and the shortest is 3 1/4. So if you subtract 4 3/4 - 3 1/4, you will get the answer 1 2/4, which you can simplify to 1 1/2 or 1.5 :)

Outliers Use the IQR to determine if any of the data in the data set are outliers. {23, 80, 43, 23, 0, 20, 23, 23, 20, 28} con Any data value less than or greater than are outliers. The outlier(s) for this data set is/are ​

Answers

The outlier of the data set given, using the IQR, is: 0.

How to Find IQR of a Data Set?

IQR = Q3 - Q1.

Given, 23, 80, 43, 23, 0, 20, 23, 23, 20, 28:

Q1 = 20

Q3 = 31.75

IQR = 31.75 - 20

IQR = 11.75

Outliers for the data set are data points below:

Q1 - 1.5 × IQR = 20 - 1.5 × 11.75 = 2.375

The only data point below 2.375 is: 0.

The outlier is therefore: 0.

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Which expression simplifies to
-2/5 ?

A. -(1/2)×(-5/4)

B. -(1/2)×(-4/5)

C. -(-1/2)×(-5/4)

D. -(-1/2)×(-4/5)

Answers

Answer:

Answer: D)-(-1/2)×(-4/5)

helpppppppppppp plsses​

Answers

Answer:

y = 8x-3

Step-by-step explanation:

Which expressions are equivalent to 35+30s−45t

Answers

Answer:

Simplify:

=35+30s+−45t

=30s−45t+35

Factor:

30s−45t+35

=5(6s−9t+7)

5(6s−9t+7)

Step-by-step explanation:

Can you give me Brainliest please

2
A plot of land is in the shape of a right-angled triangle whose
base and perpendicular are 65m and 72m, respectively. It its
boundary is made by using 4 round iron wire, find the total cost of..
the wire at the rate of Rs. 12 per meter. (Ans: Rs. 11,232)

Answers

Answer:

Step-by-step huh vunefvjefeffj. Vf Jeff vfnu

What is the significance of a dashed and solid line on an inequality function?

Answers

Answer:

Inequalities that use < or > symbols are plotted with a dashed line to show that the line is not included in the region. Inequalities that use ≤ or ≥ symbols are plotted with a solid line to show that the line is included in the region.

Answer:

An inequality function is something very odd or different

Step-by-step explanation:

im sorry if wrong

NEEP HELP ASAP! Will give 17 points! Math Question???
Men and women (ages 22−40) were surveyed to choose a favorite free-time activity: playing sports, dancing, or watching movies/TV.

The survey showed the following frequencies:
Men—playing sports: 11; dancing: 3; watching movies/TV: 6
Women—playing sports: 5; dancing: 16; watching movies/TV: 9

Which of the following is a correct two-way frequency table for the data?
(Screenshots below of all the answers!)

Answers

Women playing sports data chart is correct

Answer:

watching movies/TV

which letter matches the coordinate ( 4, -6)?​

Answers

Z would be the answer though it was very hard to see the picture.

I need help!!! Please help

Answers

Answer:

Step-by-step explanation:

so first

Answer:

your invers of operations are right and X = 7.5

Step-by-step explanation:

If I have 2 sticks of butter and I need 2/3 cup, how much of the first and second stick did I use?

Answers

Answer:

1 1/3 sticks

Step-by-step explanation:

Help plsss. Select the student who solved this equation correctly

X + 7 = 19

Answers

Answer:  [tex]Student 2[/tex]

Step-by-step explanation:

Hi there!

1.Subtract 7 from both sides of the equation

 [tex]x + 7 = 1 9[/tex][tex]x + 7 - 7 = 1 9 - 7[/tex]

2.Simplify and substract the numbers and you get the answer

[tex]=12[/tex]

A tower is topped by a right circular cone with a diameter of 24 feet and a height of 36 feet. The space inside the cone is used for housing electronic equipment.
361

Answers

Answer:

the answer is (5426)

Step-by-step explanation:

i got the answer online

The space inside the cone is 5426 cubic feet

What is the volume of a cone?

The formula for the volume of a cone is V = ( 1 / 3 ) πr²h.  

Given data ,

Diameter of cone = 24 ft

Radius of cone = ( Diameter of cone / 2 ) = 12 ft

Height of cone = 36 ft

Space inside the cone = Volume of cone

Volume of Cone = ( 1 / 3 ) πr²h

                           = ( 1 / 3 ) x ( 22 / 7 ) x 12 x 12 x 36

                           = ( 22 / 7 ) x 48 x 36

                           = ( 22 / 7 ) x 1728

                           ≈ 5426 cubic feet

Hence , the space inside the cone is 5426 cubic feet

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Ms. Stephanie bought a package of pencils. Out of every 10 pencils​, 2 are black. If there are 20 pencils in the​ pack, what fraction of the pencils in the pack are​ black? What percent of the pencils in the pack are​ black?

Answers

There would be 4/20 black pencils and the percent of black pencils is 20%
4 are black ... so 4/20 is 20%

Find another point in the pattern that passes through the points (0, 2) and (2, 16)

Answers

9514 1404 393

Answer:

  (4, 30)

Step-by-step explanation:

The two points in the pattern that are given here differ by 2 in their x-value and by 14 in their y-value. Another point can be found by adding 2 more to x and 14 more to y:

  (2, 16) +(2, 14) = (4, 30)

The point (4, 30) is another point in the pattern.

Um please help me understand this

Answers

Answer:

112

Step-by-step explanation:

hope this helps :)

whats 6 desks in 2 rows as a unit rate? :) if u respond tysm

Answers

Answer:

3

Step-by-step explanation:



Pls help I made it 50 POINTS PLS HELP MEEE

Answers

Answer:

no 1 is true

Step-by-step explanation:

no2 also true. thank you

Number 1 is True
Number 2 is also True

7. Malik deposited
$1,050 in a savings
account, and it earned
$241.50 in simple
interest after four years.
Find the interest rate on
Malik's savings account.
I got 5.75 on a website but I need to show my work SOMEONE PLEASE HELP ME!

Answers

$352,590 is the interest rate on Malik’s savings account for four years

Jackson School is doing a fundraiser selling magazine subscriptions. The magazine publisher will pay the school a starting bonus of $500 and then $4 for each subscription sold. At the end of the fundraiser, the school is paid a total of $1360. How many subscriptions did they sell?

Answers

Answer: 215 subscriptions

Step-by-step explanation:

First, remove the starting bonus of $500 to find out the amount that was acquired from subscription sales:

= 1,360 - 500

= $860

The school is paid $4 for every subscription and they made $860 from this. The total number of subscription was therefore:

= 860 / 4

= 215 subscriptions

Which of these represents an integer?
a. -3 b. 4 c. 2 1/2 d. 6.2

Answers

Answer:

-3 & 4

Step-by-step explanation:

An integer is any whole number. It can be negative or positive.

NEED ANSWER FAST
(please explain!!!!)

Answers

Answer:

The left answer

Step-by-step explanation:

They are asking if their is a relationship between the x and y value

for the left one, when the value of y is shown to be the x value divided by 3 as

11/3 =11 over 3, 12/3 = 4, 13/3 = 13 over 3

But the right answer does not seem to have any correlation/relationship between its x and y values

The answer that starts with 11! Sorry if I’m incorrect

I need the answer

Hdhehxjsvdis

Answers

I think it’s A,26,25
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