The sum of two numbers is 11 and their difference is 9

Answer:

6.75

Step-by-step explanation:

A of rectangle = 2*1.5=3

A or triangle= (7-2)*1.5/2 = 5*1.5/2 =3.75

Area trapezoid =A rectangle +Atriangle = 3+3.75=6.75

Answer:

C : 6.75 yd.

Step-by-step explanation:

first, you divide the trapezoid into two shapes, a square, and a triangle. For the square's area, you multiply 2yd and 1,5 yd to get 3 yd. Then for the triangle's area, since the bottom side of the trapezoid is a side for both the triangle and the square, the square already took 2yd if that makes sense. You multiply 5yd and 1.5 yd to get 7.5 yd. Since its a triangle, you divide the area of the triangle by 2, which is 3.75 yd. To get the total area of the trapezoid, you then add 3yd plus 3.75 yd to get 6.75 yd. ²

hope this helps

Answer:

A

Step-by-step explanation:

-4 +5 is 1 not -1 lol

The incorrect step where Kelcy did mistake is given by: Option A: She added ⟨–4, 3⟩ and ⟨5, 1⟩ incorrectly.

Suppose that two vectors are given as:

[tex]x = \: < a,b > \\y= \: < c,d >[/tex]

Then, their addition is given as:

[tex]x + y = \: < a +c , b + d >[/tex]

For this case, we can see that when Kelcy added <-4,3 > and <5,1>, she didn't add -4 and 5 correctly, as it results in +1, and not -1,

Thus, <-4,3> + <5,1> = <1,4>

Thus, wrong addition caused error in the solution.

Thus, the incorrect step where Kelcy did mistake is given by: Option A: She added ⟨–4, 3⟩ and ⟨5, 1⟩ incorrectly.

Learn more about addition of vectors here:

https://brainly.com/question/4553385

Answer:

B :step 2   she didnt collect all the like terms and calculate

Step-by-step explanation:

first rewrite  remove all (  )Parentheses

2nd   collect all like terms and calculate

a^4 + 7a -16 -12^a^3 + 5a -3

a^4 + 12a - 19 - 12a^3     ( Like terms are 7a +5a  and -16 +-3)

so she skipped the second step

I'm guessing you mean to say that sum of 5 consecutive odd numbers is 135. In that case, let x be the first number. Then

x + (x + 2) + (x + 4) + (x + 6) + (x + 8) = 135

5x + 20 = 135

5x = 115

x = 23

So the numbers are 23, 25, 27, 29, and 31.

If you really did mean 555 consecutive odd numbers summing to 135,135,135, the process is the same, but you would find a non-integer solution so that wouldn't be possible.

Answer:

The answer is 25

Step-by-step explanation:

I got this answer on Khan Academy

Hope this helps! :)

Answer: He made $612 for sold 204 erasers this week.

Step-by-step explanation:

Answer:

$600

Step-by-step explanation:

Answer:

20 units I believe

Step-by-step explanation:

20 units

Answer:   C. 20 units

2021 edg

Step-by-step explanation:

Answer:

performed or occurring as a result of a sudden inner impulse or inclination and without premeditation or external stimulus.

Basically, you do things spur of the moment.

Step-by-step explanation:

Answer: The definition of spontaneous is unplanned or done on impulse. An example of spontaneous is waking up and deciding to take a trip across the country that day. adjective.

Hope this helps... stay safe and have a great day!!! :D

Answer:

Each pen costs $3.60 (Each calculator costs $14.20).

Step-by-step explanation:

Let c represent calculator

Let p represent pen

3c + 7p = 67.8

6c + 2p = 92.4

Step 1: Solve 3c + 7p = 67.8 for c:

3c + 7p = 67.8

3c + 7p + −7p = 67.8 + −7p (Add -7p to both sides)

3c = −7p + 67.8

3c/3 = −7p + 67.8/3 (Divide both sides by 3)

c = −7/3p + 22.6

Step 2: Substitute −7/3p + 22.6 for c in 6c + 2p = 92.4:

6c+2p=92.4

6(−7/3p + 22.6) + 2p = 92.4

−12p + 135.6 = 92.4 (Simplify both sides of the equation)

−12p + 135.6 + −135.6 = 92.4 + −135.6 (Add -135.6 to both sides)

−12p = −43.2

−12p/−12 = −43.2/−12 (Divide both sides by -12)

p = 3.6

Step 3: Substitute 3.6 for p in c = −7/3p + 22.6:

c = −7/3p + 22.6

c= −7/3(3.6) + 22.6

c = 14.2 (Simplify both sides of the equation)

Answer:

c = 14.2 and p = 3.6

Hope this helps and have a great day :)

And please mark me brainliest if you can :)

Answer  :C

Step-by-step explanation:  For any given function, all first input values (x-values/coordinates) in the relation are considered as the domain values. While the output values (y-values/coordinates) make up the range of the given function.

The mapped relation that has a domain of {1,2,3}, is the mapped relation that has 1, 2, and 3 on the input side on our left.

Therefore, the mapped relation in option C is the answer.

Answer: 90 degrees counterclockwise and 270 degrees clockwise are the same things and you need to use the same formula for both

Step-by-step explanation:We swap the value of x and y and negate the value of y. So the value of x becomes the value of y and value of y becomes the value of x. so the formula is:

(x, y) –> (-y, x)

Before Rotation  After Rotation

(x, y)                    (-y, x)

hope this helps

Answer:

the answer is letter A.

Step-by-step explanation:

m=y²-y¹/x²-x¹

m=(-6)-16/(-19)-15

m=-22/-34

m=11/17

Answer:

-0.75x+8.1

Step-by-step explanation:

Answer:-0.75x+8.1

Step-by-step explanation:

Answer:

Step-by-step explanation:

25x^2-64=0

x=8/5, -8/5

Answer: x = 8/5, -8/5

Step-by-step explanation:

25x^2 -64 = 0

(5x+8)(5x-8) = 0

x = 8/5, -8/5

Answer:

It will be t>=7

Step-by-step explanation:

Given:

The product [tex](2x + 3)(x + k)[/tex] is [tex]2x^2+13x+15[/tex].

To find:

The value of k.

Solution:

According to the question,

[tex](2x + 3)(x + k)=2x^2+13x+15[/tex]

Using distributive property, we get

[tex]2x^2+2xk+3x+3k=2x^2+13x+15[/tex]

[tex]2x^2+(2k+3)x+3k=2x^2+13x+15[/tex]

On comparing both sides, we get

[tex]3k=15\text{ and }2k+3=13[/tex]

[tex]k=\dfrac{15}{3}\text{ and }2k=13-3[/tex]

[tex]k=5\text{ and }2k=10[/tex]

[tex]k=5\text{ and }k=5[/tex]

Both value of k are same, i.e., 5.

Therefore, the value of k is 5.

Answer:

its c hope this helps:)

Step-by-step explanation:

Answer:

17= addition

18 = 27

Let's solve your equation step-by-step.

43x−4=5−x

Step 1: Simplify both sides of the equation.

43x−4=5−x

43x+−4=5+−x

43x−4=−x+5

Step 2: Add x to both sides.

43x−4+x=−x+5+x

73x−4=5

Step 3: Add 4 to both sides.

73x−4+4=5+4

73x=9

Step 4: Multiply both sides by 3/7.

(37)*(73x)=(37)*(9)

x=277

Answer:

x=277

Answer:

x = 10

Step-by-step explanation:

9 is to 45 as 2 is to x

9 ---- 45

2 ---- x

x = 2 . 45 / 9

x = 10

Answer:

The age of his son is 10 years

Step-by-step explanation:

Think x is the age of his son

The age of his son is

=>45/x=9/2

=>9x=90

=>x=90/9

therefore

x=10

The his of son is 10 years

Answer:

C. $25

Step-by-step explanation:

#dg#nutiy

Answer:

The answer is 25.

Step-by-step explanation:

I did it on Edge.. and got it right

Answer:

17.5

Step-by-step explanation:

175% is written as 175/100. If you move the decimal at the end over twice you get 1.75/1 which is just 1.75. You then multiple 10 by 1.75 and you get 17.5

175% of 10 is

[tex]➞\large \: \frac{175}{100} \times 10[/tex]

[tex]➞\large \: \frac{175}{10} [/tex]

[tex]➞\: 17.5[/tex]

mrk brainleist ☺️

Answer:

1948 apples

Step-by-step explanation:

add.

1948 Hope it helped. And yea you can make a new account though you have to use a different email, Cuz I got banned once and this is my second account

Have a good day! <3

Answer:

5/9

12

Step-by-step explanation:

La clase entera es 1.

1/3 estudian español.

1/9 estudian italiano.

1 - 1/3 - 1/9 estudian alemán.

1 - 1/3 - 1/9 = 9/9 - 3/9 - 1/9 = 5/9

5/9 de los estudiantes estudian alemán.

n = numero total de estudiantes en la clase.

5/9 n = 15

9/5 * 5/9 * n = 15 * 9/5

n = 27

Hay 27 estudiantes en la clase.

27 - 15 = 12

12 estudiantes no estudian alemán.

is there any options to this question?

Answer:

55%

Step-by-step explanation:

Answer:

213.28 in^2

Step-by-step explanation:

surface area = 2(LW + LH + WH)

surface area = 2[(4.4 in)(5.6 in) + (4.4 in)(8.2 in) + (5.6 in)(8.2 in)]

surface area = 213.28 in^2

Answer:

x=

2

5

​

=2.500

Step-by-step explanation:

Answer:

3/4

Step-by-step explanation:

A percent is always out of a 100

So, 75/100

The highest common factor between 75 and 100 is 25

Divide both sides both 25

3/4

the answer is 3/4 I believe

I hoped this helps :)

Answer: 1

Step-by-step explanation:

Answer: the x is vertical and y horizontal

Step-by-step explanation: