Mathematics High School

a) (x+1)^3=
b) (2x +y)^3=

Answers

Answer 1

Answer:

x= -1 is the option a

answer

Related Questions

Name two pairs of congruent angles

Answers

Answer:

∠JKL and ∠GKH

Step-by-step explanation:

1. Because these intersecting lines are forming opposite pairs of angles, there  are some vertical angles. Vertical angles are congruent.

2. As you can see, ∠JKL is 55°. The angle that forms the pair of opposite angles with ∠JKL is ∠GKH.

3. As aforementioned, because these two angles are vertical angles, they're congruent.

Therefore, two pairs of congruent angles are ∠JKL and ∠GKH.

4. Elias was asked to solve a quadratic equation by factoring and his work is shown below. Circle the letter of the step where he has made an error. Then redo the work correctly from that point, using the shaded space. 4 points possible Given x2 – 12x = -20
Аx2 - 12x + 20 = 0
B(x - 4)(x – 5) = 0
С x-4 = 0 OR x-4 = 0
D x = 4 or x = 5 ​

Answers

Answer:

(B) (x - 4)(x – 5) = 0

Step-by-step explanation:

He made a mistake at step 2.

(x - 4)(x - 5) = 0 is incorrect as

it is same as x² - 9x + 20 = 0

It should be:

(x - 10)(x - 2) = 0 with the end result x = 10 or x = 2

Let's solve

[tex]\\ \sf\longmapsto x^2-12x=-20[/tex]

[tex]\\ \sf\longmapsto x^2-12x+20=0[/tex]

[tex]\\ \sf\longmapsto x^2-10x-2x+20=0[/tex]

[tex]\\ \sf\longmapsto x(x-10)-2(x-20)=0[/tex]

[tex]\\ \sf\longmapsto (x-10)(x-2)=0[/tex]

[tex]\\ \sf\longmapsto x=10\:or x=2[/tex]

Option B

write the following ratios in the simplest form

80cm to 2m
76 cents to 3 dollars
2h to 45 min

Answers

Answer:

1. 1600

Step-by-step explanation:

1 80*20 =1600

2. 76

helpp!!! plz!!!!!!!!!!!
​

Answers

odd; positive because the line goes up

Which symbol correctly compares these fractions?

−3/5□−2/3

A. >

B. <

C. =

Answers

Step-by-step explanation:

Or are you looking for the least

please someone helpppppp im giving brainliest!

Answers

Answer:

A

Step-by-step explanation:

The order of operations, or PEMDAS, is used like so:

Parentheses

Exponents

Multiply

Divide

Add

Subtract

exponents are the second step of the order of operations

Answer:

The 2nd step i think I'm not totally sure.

Step-by-step explanation:

PLEASEE HELP WILL MARK YOU BRAINLIEST

Answers

-(6y-4)+(6y-4)-(-2)
= -6y+4+6y-4+2
= 2

a watermelon is thrown down from the 7th floor of urey hall at ucsd. if the initial height of the watermelon is 21.0 meters, and it is thrown straight downward with an initial downward velocity of 3.00 m/s. how far will the watermelon have fallen from its starting height after 1.50 seconds?

Answers

Answer:

The watermelon has fallen 15.53625m

Step-by-step explanation:

x=vi*t+.5*a*t^2

x=3*1.5+.5*9.81*1.5^2

x=15.53625m

The answer would be 15.5

Name two obtuse angles

Answers

Answer:

more than 90° or less than 180°

\frac{5+p}{9}<-1

Can someone help me find how to solve this?

Answers

Answer:

Step-by-step explanation:

[tex]\frac{5+p}{9} <-1\\5+p<-9\\p<-9-5\\p<-14[/tex]

Drag and drop the fractions to order them from least to greatest. -3/7 1/4 -4/5 2/3

Answers

Answer:

-4/5, -3/7, 1/4, 2/3

Step-by-step explanation:

The last one is the greatest as a positive but because it's both the greatest positive but a negative it is the smallest. Since 2/3 is closest to 1 and is positive it would be the greatest. -3/7 is a smaller value than 1/4 as it's closer to 0 than 1/4 is.

-4/5, -3/7, 1/4, 2/3

I just turned them into decimals and sorted it.
-4/5 = -0.80
-3/7 = -0.42
1/4 = 0.25
2/3 = 0.67
But you can also infer without converting. -4/5 is closer to being a whole since there are 4 “pieces” out of 5, so only 1 piece left. -3/7 is farther because 4 pieces left. Same with the positive numbers. But this method doesn’t always work because some pieces can be bigger than others like 9/10 (0.90) and 5/6 (0.83)

20 days to 2 weeks ratio

Answers

Answer:

20:14 = 10:7

Step-by-step explanation:

A week is equal to 7 days

2 weeks is equal to 2*7 = 14 days

Answer:

20 : 14

Step-by-step explanation:

Since there are 20 days, convert 2 weeks into days, (7 x 2), and you get 14.

The value of c varies directly with y, and when x=1/3, y=5

Write an equation to represent the direct variation

Find the value of y if x=-2

PLS HELP

Answers

Answer:

-3/10

Step-by-step explanation:

y = k/x

5 = 3k

k = 3/5

y = 3/5x

y = 3/5(-2)

   = 3/-10

    = [tex]-\frac{3}{10}[/tex]

Feel free to mark this as brainliest! :D

Leonard owns a business earning $37,800 in profits. These profits are appreciating at about 2.3% each year. What are Leonard's profits after eight years? (2 points)
$38,383.50
$45,341.60
$31,379.67
$44,755.20

Answers

Answer:

B. $45341.60

Step-by-step explanation:

Given:

Initial profit = $37800Rate of appreciation = 2.3% per year

The equation for this:

[tex]P(t) = 37800*(1 + 0.023)^t = 37800*1.023^t[/tex]

Find the value of P(8):

[tex]P(8) = 37800*1.023^8 = 45341.60[/tex]

Correct choice is B

Heathers rabbit has a mass of 5.190 kilograms. Jeff's rabbit has a mass of 5.195 kilograms.Write and inequality statement comparing the masses of the rabbits

Answers

Answer:

5.190 < 5.195

Step-by-step explanation:

5.195 is bigger than 5.190, so 5.195>5.190

Heather does not have 5.190 kg she has something else

HELP PLSSSSSSSSSSSSS

Answers

The 80 degree part is corresponding to 2x so use a one step equation for that one, 80=2x 80/2= 40, x=40. The two lines are parallel so they are equal, using another one step equation 80=5y, 80/5=16 y=16. For the next one 30 and w are perpendicular to the right angle beside it so 90-30= 60, w=60. 3y and x are on a supplementary angle so 180= 3y, y=60, 180-60=90, z=90, 5x+4=90-4=86/5=17.2, x=17.2

when 4a - a x 3a + 7a is simplified it is equivalent to?

Answers

Answer: -3a^2 + 11a

Step-by-step explanation:

4a - (a x 3a) + 7a - Multiply first to get 4a - 3a^2 + 7a

4a - 3a^2 + 7a - Add like terms (a terms) to get -3a^2 + 11a

So the answer in -3a^2 + 11a

I need an explanation on how to do this one

Answers

ok!

to find mean, add all of the numbers, and divide that by how many numbers you have.

for example:

number 7 on your paper (8,9,10,15,28)

add those numbers together to get: 70

then divide 70 by 5 (since that's how many numbers there are in the problem) to get: 14

to get median write out all the numbers from least to greatest like you've done and find the middle number by marking off a number from the side each time then you will get: 10

to find mode you just write the number that appears the most. since there are no repeating numbers in your problem, theres no mode.

to find range you subtract the smallest number from the largest number in the problem.

so in your case, it would be 28-8

your range would be: 20

simplify a⁷ ÷ a⁴ × a⁵​

Answers

Answer: a^8

My work: a^12 divided by a^4 and got a^8

(hope this helps) :)

The total height of the Statue of Liberty and its pedestal is 153 feet more than the height of the statue. What is the height of the statue?

Answers

Answer: 150 + 3 = 150

Step-by-step explanation: The statue of liberty is approximately 150 feet tall from the base to the tip of the torch. A scale model is built that is 3 feet tall.

Noreen can walk 1/3 of a mile in 12 minutes what is her average speed in miles per hour. (this is multiple choice)

A. 36 miles per hour
B. 12 miles per hour
C. 1/4 a mile per hour
D. 1 2/3 miles and hour

Answers

Step-by-step explanation:

1/3 mile in 12 minutes (=1/5 of an hour).

so, the speed (ratio of distance/time) is

1/3 mile / 12 minutes

the speed in mph is the converted ratio, where the denominator (bottom) is turned into 1 (hour).

what do I need to multiply 12 minutes with to get 1 hour ?

the same to multiply 1/5 with to get 1 : 5

to keep the overall value of the ratio the same I need to multiply both parts (top and bottom) of the fraction with the same value.

therefore,

1/3 / 12 × 5/5 = (1/3 × 5) / (12×5) = 5/3 / 60

so, the speed in mph is

5/3 miles / 60 minutes = 5/3 miles / 1 hour = 5/3 mph = 1 2/3 mph

D is the right answer.

−3,−8,12,−15,9

find the mean

Answers

First we have to add all five numbers up then divide that total to get the mean (which is the average)
So -5 divided by 5 is -1
The mean is -1

?
11.9 cm
9.1 cm
-oblem
Two side lengths of a triangle are shown above. What could be the measurement of the missing side length? (choose 2)
A 20.3 cm
B22.4 cm
C 2.6 cm
D14.6 cm
E 25 cm

Answers

Answer:

14.98cm

Step-by-step explanation:

Just using the pythagorean theroem

Helppp please I will mark brainiest

Answers

Answer:

number 1

Step-by-step explanation:

read the qeustion again

HELP PLEASE WILL MARK BRAINLIEST TO BEST ANSWER

Answers

Answer:

a

Step-by-step explanation:

Answer:

c. (3x)^2

Step-by-step explanation:

30) x/4 = 9

31) a/5 = 7

32) n/3 = 29

33) n/3 = 10

34) y/5 = 24

35) b/9 = 15

36) n/7 = 17

37) x/3 = 8

38) y/5 = 33

39) e/36 = 5

40) a/25 = 4

41) b/16 = 7

Answers

Answer:

30). x=36

(31). a=35

32. n=104

33. n=30

34. y=120

35. b=135

Step-by-step explanation:

x/4=9

cross multiply

x=4×9

x=36

a/5=7

cross multiply

x=5×7

x=35

(repeat thesame steps over and over)

SOMEONE HELPPP PLZ!!!

Answers

Divide 1.68 by .12 to get your answer

A rectangular farm has an area of 5/8 square miles. If its length is 1/9 miles, what is its width?

Answers

45/8 or 5 5/8

5/8 divided by 1/9 - 5/8 x 9/1

I need theses answer quick please! (will mark brainliest)

determine whether each pair of ratios are equivalent ratios.

1. 8/9, 72/81

2. 3/14, 21/98

3. 12/17, 50/85

Answers

Answer:

1. Equivalent

2. Equivalent

3. Not equivalent

Step-by-step explanation:

So basically for all of them you need to find a multiple for the numerator of the first fraction to see if it equals the numerator of the second fraction, and same goes for denominator.

For the first one, 8*9 is 72, and you must multiply the denominator with the same number you multiplied the numerator with, so 9*9 is 81, so it is equivalent.

Find the missing dimension of the prism. Volume = 532 in. 3 19 in​

Answers

Subtract them but turn 532 into a decimal

The required width of the rectangular prism is 16in.

What is a rectangular prism?

A rectangular prism is a three dimensional shape , that has six faces. The shape of a rectangular prism is just a cuboid shape.

Use the formula of volume of a cuboid since a rectangular prism is in the shape of a cuboid. The volume of a cuboid is V= length×breadth×height.

Given that, The volume of prism V=[tex]532 in^{3}[/tex]

The length of prism , L= 19in.

The height of prism [tex]H=1\frac{3}{4}=\frac{7}{4}[/tex].

The width, W=?

The rectangular prism has volume V=Length×Height×Width.

Therefore,  532=19×(7/4)×W

So,  532×4=19×7×W

Thus,  (532×4)/(19×7)=W

Therefore,  W=16in.

Thus, the width of the rectangular prism is 16in.

To learn more about volume click here:

https://brainly.com/question/25038935

#SPJ2

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