A mistake was made in the steps shown to simplify the expression. Which step includes the mistake?
9/2+ 3(4 – 1) – 7 + 23
Step 1: = 9/2+ 3(3) — 7 + 23
Step 2: = 9/2 + 3(3) - 7 + 8
Step 3: =15/2 (3) — 7+8
Step 4: =45/2 - 7+8
Step 5: =31/2 +8
Step 6: =47/2

Answers

Answer 1
step 2 how did the 8 get there?
Answer 2

Answer: step 3 maybe?

Step-by-step explanation:


Related Questions

Simplify the expression to lowest terms. 4x^2 - 9/2x^2+11x+12

Answers

Answer:

(2x - 3)/(x +4)

Step-by-step explanation:

Given the expression 4x^2 - 9/2x^2+11x+12

Simplify the numerator

4x^2 - 9 = (2x)^2 - 3^2

Recall that a^2 - b^2 = (a-b)(a+b)

Hence 4x^2 - 9 = (2x - 3)(2x + 3)

The denominator

2x^2+11x+12

Factorize

2x^2+11x+12 = 2x^2+8x + 3x+12

=2x(x + 4) + 3(x + 4)

= (2x + 3)(x + 4)

Hence

4x^2 - 9/2x^2+11x+12 =  (2x - 3)(2x + 3)/(2x + 3)(x + 4)

= (2x - 3)/(x +4)

Solve for x. −3/4(x+2)=6

Answers

Answer:

x= -10

Step-by-step explanation:

Answer:

x=-10

Step-by-step explanation:


A 24-foot ladder leans against a building. The foot
of the ladder is 7 ft from the building. Find the
measure of the angle which the ladder makes with
the level ground.

Answers

Answer:

73°

Step-by-step explanation:

Here we use trigonometry to find the angle. The building and the ground form a perpendicular angle, with the ladder acting as the hypotenuse, we get a right angle. We know the length of adjacent leg from the angle, and the length of the hypotenuse. In this case, we use cosine since cos = adjacent length/hypotenuse length. So cos x= 7/24. To isolate x, we use the inverse function of cos, cos^-1. Then x= cos^-1 (7/24) or 73°.

Simplify the expression 8(2x - 6y + 3) using the distributive property. *

Answers

Answer:

16x - 48y +24

Step-by-step explanation:

We can use the distributive property to expand:

8(2x - 6y + 3)8 x 2x - 8 x 6y + 8 x 316x - 48y + 24

Hope this helps!!

Answer:

(16x48y+3)

Step-by-step explanation:

tell me if u am wrong

and your final answer is -29

If segment DE is 12, what is segment BC?

Answers

Answer:

A) 24

Step-by-step explanation:

A large bookstore took in $4,000,000 in sales last year.
The ratio of book sales to other sales was 5 to 3.
How much money in book sales did the store take in?

Answers

They took in $2,500,000 in book sales.

will give brainlist geometry

Answers

Direct answer :[tex]\color{plum}\boxed{\tt Statements : }[/tex]Segment AB = Segment AD Segment BC = Segment DCAngle B and Angle D are equal.Segment AC bisects angle BAD Segment AC = Segment AC∠ACD = ∠ACB△ABC≅△ADC under ASA congruence criterion. △ABC≅△ADC under SAS congruence criterion.

[tex]\color{plum}\boxed{ \: \tt Reasons : }[/tex]It is given.It is given.It is given. They are also equal because the bisector AC bisects angle BAD and divides it into two equal angles which are angle B and angle D.It is given. Common side.Common angle.Two angles and one included side is equal so these two triangles are congruent under the ASA congruence criterion. Two sides and one included side is equal so these two triangles are congruent under the SAS congruence criterion as well.

Steps to derive these statements and reasons :

Given :

segment AB = segment ADsegment BC = segment DC∠B =∠Dsegment AC bisects ∠BAD

This means that △ABC≅△ADC under the SAS congruence criterion because according to this criterion if two sides and one included angle is equal two triangles are congruent and since these two triangles fulfill these rules they are said to be congruent under the SAS congruence criterion. But they are also congruent under the ASA congruence criterion which states that if two angles and one included side is equal two triangles are congruent. Since △ABC and △ADC fulfill these rules too they can said to be congruent under the ASA congruence criterion.

[tex]x^{2} +2x=-1[/tex]
how do i solve this with the pq- formula?

Answers

Step-by-step explanation:

x²+2x+1

x²+x+x+1

x(x+1)1(x+1).

(x+1)(x+1)

x=-1. , x=-1

Answer:

[tex]\displaystyle \boxed{\text{\sf \Large x=-1}}[/tex]

Step-by-step explanation:

Add 1 to both sides

[tex]x^2+2x+1=0[/tex]

Use quadratic formula with a=1, b=2, c=1

[tex]\displaystyle x=\frac{-b \pm \sqrt{b^2-4ac} }{2a}[/tex]

[tex]\displaystyle x= \frac{-(2) \pm \sqrt{(2)^2-4(1)(1)} }{2(1)}=-1[/tex]

Wich one does not belong , And why..?

veiw the image

Answers

Answer:

2x+3

Step-by-step explanation:

the upper left, upper right, and lower right are all using distributive property. The lower left is not.

The drawing plan for an art studio shows a rectangle that is 192 inches by 4 inches. The scale in the plan is 2 in: 5 ft. Find the length and width of the actual studio. Then find the area of the actual studio. The length is feet feet the width is feet, and the area is square​

Answers

Answer:

Step-by-step explanation:

192in(5ft/2in)=480ft

4in(5ft/2in)=10ft

A=480ft(10ft)=4800ft^2

A store is randomly giving away gift cards to the first 150 customers. They are giving 130 gift cards that have a value of $5 each and 15 gift cards that have a value of $50 each. The rest of the gift cards have a value of $100 each. Which is the probability that a customer will get a $100 gift card?

Answers

Answer:

1/30

Step-by-step explanation:

The total number of cards is 150. Subtract the numbers of the other values, 130 and 15 to get the number of $100 cards.

150 -145 = 5

5/150 is the number out of the total.

Simplify to get the probability: 1/30

Please answer these 2 word problems for BRAINLIEST AND IF CORRECT I WILL GIVE EXTRA POINTS

Answers

Answer:

150

Step-by-step explanation:

500 is what percent of 125?​

Answers

400% is because 125 divided by 500 is 400

Answer:

400

Step-by-step explanation:

Solution for 500 is what percent of 125:

500:125*100 =  

(500*100):125 =  

50000:125 = 400  

Now we have: 500 is what percent of 125 = 400  

Question: 500 is what percent of 125?  

Percentage solution with steps:  

Step 1: We make the assumption that 125 is 100% since it is our output value.  

Step 2: We next represent the value we seek with [tex]x%[/tex].  

Step 3: From step 1, it follows that $100%=125$.

Step 4: In the same vein, $x%=500$.

Step 5: This gives us a pair of simple equations:

100%=125(1)

x%=500(2)

Step 6: By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS

(left-hand side) of both equations have the same unit (%); we have

[tex]\frac{100\%}{x\%}=\frac{125}{500}[/tex]

Step 7: Taking the inverse (or reciprocal) of both sides yields

[tex]\frac{x\%}{100\%}=\frac{500}{125}[/tex]

[tex]\Rightarrow x=400\%[/tex]

Therefore, 500 is 400% of 125

Hope this answer helps and answers your question! Have a great day/night!

Match the reasons with the statements in the proof.

Answers

Answer:

for some reason i cant see ur attachment. lo siento

Same here I can’t read it

Which equation represents a line which is perpendicular to the line x – 2y = -14?

Answers

Answer:

any equation that have the slope of -2

A line which is perpendicular to the line x – 2y = -14 will have a slope of -2

What is a slope?

The slope of a line is a measure of its steepness.

Given an equation of a line  x – 2y = -14

We know that, the slope of a line perpendicular to another line will have a slope of its negative reciprocal.

Therefore, slope of the line perpendicular to the line x – 2y = -14  will be -2

Hence, equation of the line perpendicular to the line x – 2y = -14 will have a slope of -2

For more references on slope, click;

https://brainly.com/question/3605446

#SPJ2

i just started taking a math class today and i'm really rusty. my question is
simplify 28-(6+4)=(4-2)

Answers

The answer to this question is 13.

The cost of a car rental is ​$45 per day plus 22¢ per mile. You are on a daily budget of ​$78. Write and solve an inequality to find the greatest distance you can drive each day while staying within your budget. Use pencil and paper. Find 2 other​ two-step inequalities with the same solutions.

Answers

Answer:

Step-by-step explanation:

Answer:

You can drive at the most 150 miles per day

Step-by-step explanation:

????????????????????????

Answers

Answer = (-5,infinite)

mother went to savers mall to buy disinfectant, she spent php 89.75 for an alcohol, php68. 35 for a clorox, and a pack of safe guard for php145.25 .How much she did spend on all?​

Answers

Step-by-step explanation:

enejejeiwkwkwkemenememememememe

1. Find the coordinates of the centroid of the triangle with the given vertices.


A(2,3), B(8, 1), C(5,7)



The centroid is ( , )

Answers

9514 1404 393

Answer:

  (5, 3 2/3)

Step-by-step explanation:

The centroid is the average of the vertex coordinates:

  (A +B +C)/3 = ((2, 3) +(8, 1) +(5, 7))/3 = (2+8+5, 3+1+7)/3 = (5, 3 2/3)

Answer:

46940064

Step-by-step explanation:

1)

The angle of inclination is the angle between the horizontal and the ramp.

Using the sine ratio in the right triangle formed by the ground and the ramp

let x be the angle of inclination, then

sinx = \frac{opposite}{hypotenuse}

hypotenuse

opposite

= \frac{0.7}{4.2}

4.2

0.7

, then

x = sin^{-1}sin

−1

(\frac{0.7}{4.2}

4.2

0.7

) ≈ 10° ( to the nearest degree )

(2)

Again there is a right triangle between the ground and the vertical height of the kite, with hypotenuse being length of string.

let y be the height of the kite and x the horizontal distance, then

sin27° = \frac{opposite}{hypotenuse}

hypotenuse

opposite

= \frac{y}{176}

176

y

( multiply both sides by 176 )

176 × sin27° = y , then

y ≈ 80m ( to the nearest metre ) ← height of kite

and

cos27° = \frac{adjacent}{hypotenuse}

hypotenuse

adjacent

= \frac{x}{176}

176

x

( multiply both sides by 176 )

176 × cos27° = x , then

x ≈ 157m ( to the nearest metre ) ← horizontal distance

Does this expression represent the sum 13.76 + 2.8?

fifteen and fifty-six hundredths

Answers

Answer:

False

Step-by-step explanation:

7in to ft! help please im lazy and also make the answer a fraction or decimal

Answers

Answer:

0.58 ft

Step-by-step explanation:

I asked Siri how many ft are in 7 inches it doesn’t take much effort

A coat at a store is originally priced at $85. The store marks the price down to $68. To the nearest percent, what is the percent markdown of the coat ?

Answers

Answer:

20%

Step-by-step explanation:

This is because the amount decreased is 17 and 17 is what percent of 85? The answer is 20%.

the volume of a rectangular prism is 21/12 ft3 , and the height of the prism is 3/4 ft. determine the area of the base

Answers

24/16
Idiot idiot I don’t want you in your the way I want you lol I just want

Which of these has the smallest product?

Answers

Answer:

B

Step-by-step explanation:

1/5 x 5/6 = 5/30

Hope this helps!

What is 80% as a fraction in reduced form? StartFraction 1 Over 8 EndFraction StartFraction 4 Over 5 EndFraction StartFraction 8 Over 10 EndFraction StartFraction 40 Over 50 EndFraction

Answers

Answer:

4/5

Step-by-step explanation:

Answer:

its 4 over 5

Step-by-step explanation:

(trust me)

The daily temperature in the month of March in a certain city varies from a low of 24 degrees F to a high of 40 degrees F. Find a sinusoidal function to model daily temperature and sketch the graph. Let t=0 correspond to noon, when the highest temperature of the day occurs.
Please help I'm in the test. ​

Answers

Answer:

d(t)=8cos((pi/12)t)

Step-by-step explanation:

I think this is correct...

A=8 b/c 40-24=16, 16/2 = 8

B=2pi/per, 2pi/24, B = pi/12

Dustin is recording what kind of shoes people are wearing at the mall. He has seen 24 people
wearing boots and 63 people wearing other shoes. What is the experimental probability that
the next person Dustin sees will be wearing boots?
Simplify your answer and write it as a fraction or whole number
P(boots) =

Answers

Answer:

P=24/63

that is the probability

Step-by-step explanation:

hope helps

Use distributive property to solve the problem
3 (9 - 10a) - 3a

Answers

Answer:

27- 1 = 26

Step-by-step explanation:

Could you please show work :)

Answers

Answer: the slope is 3x  and the intercept is 4y??

Step-by-step explanation:

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