pleasee help I don't understand ​

Answer:

a^3 + b^3

Step-by-step explanation:

(a + b)(a^2-ab+b^2)

a(a^2 -ab +b^2) +b(a^2-ab+b^2)

a^3 - a^2b +ab^2 + ba^2 -ab^2 +b^3

a^3 -a^2b +a^2b ab^2-ab^2 + b^3

The final answer will then be:

a^3 + b^3

Hope this helps! Have a great one! And I give out the best of luck for whatever quiz this is on!

Answer:

a^3 - b^3

Step-by-step explanation:

a^3+a^2b+ab^2 -a^2b -ab^2 -b^3

a^3 - b^3

Based on the number of times Johnny performs the experiment, the order from the largest difference in relative frequency and actual prob. to the smallest is:

The difference between absolute probability and relative frequency will be larger if the number of experiments performed is smaller.

This is why the largest difference was seen when Johnny performed the experiment 20 times and the smallest difference was seen when the experiment was done 75 times.

Find out more on relative frequency at https://brainly.com/question/3857836.

Answer:

B and D

Step-by-step explanation:

2:4 when divided by 2 gets you 1:2

and 2:4 multiplied by 2.5 gets you 5:10

Answer:

B and D

Step-by-step explanation:

So basically we have to find the unit rate of 2:4.

(remember to find the unit rate we have to simplfy the ratio until one of the quantities is 1)

2:4 (divide by 2 on each side)

1:2 (B)

now we can use this unit rate of 1:2 to find out other equal ratios

1:2 (multiply 5 on both sides)

5:10 (D)

Answer

rational

Step-by-step explanation:

Answer do your work

Step-by-step explanation:

Note that

For a pair (x,y)

Here x goes from

Hence domain

As There is open dot on -9 we used <

Answer:

x=74

Step-by-step explanation:

because those two angles you can assume are equal, and all you have to do is subtract 180 by 32 and divide 148 by 2 to get the other two parts of the triangle.

Answer:

22.21

Step-by-step explanation:

The slope of a linear function is calculated by rearranging the equation to its general form, f(x) = mx + c; where m is the slope. The vertex of a quadratic function is calculated by rearranging the equation to its general form, f(x) = a(x – h)2 + k; where (h, k) is the vertex.

Answer:

please send the image to enable me to answer

Answer:

72 in²

Step-by-step explanation:

since the trap is open left and right, we don't include these side areas.

so, all we have for the surface area are

the top rectangle (2.5 in × 12 in),

the bottom rectangle (2 in × 12 in)

the back rectangle (1.5 in × 12 in)

for the total surface area we need to to add all 3 areas up.

in our case we get

2.5 × 12 = 30 in²

2 × 12 = 24 in²

1.5 × 12 = 18 in²

total is then

30 + 24 + 18 = 72 in²

Answer:

y>3

Step-by-step explanation:

All values on the y axis will be greater than 3

Hope this helps :D

Answer:

58 y/o

Step-by-step explanation:

Write out the English in math terms

[24/(-3) + (-7) ] * -4     -2   = Father's age =   58

Answer:

Yes

Step-by-step explanation:

What is 15 percent of 45? = 6.75.

Step-by-step explanation:

Length of a shipping box (L) = 13m

breadth of a shipping box (b) = 7m

height of a shipping box (h) = 3m

Now,

Volume of a shipping box (v) = L*b*h

= 13*7*3

= 273

Expanding the product gives

(2 - 3i) (4 + 3i) = 8 - 12i + 6i - 9i² = (8 + 9) + (6 - 12) i = 17 - 6i

so a = 17.

Step-by-step explanation:

There is no options but I think the graph equation is

[tex]f(x) = \sqrt{x} + 2[/tex]

The reduced form of Sin⁴(6x) in terms of the first power of Cosine is; 1 - 1/4(Cos (24x)).

It follows from the task content that;

Hence, from product identity;

Upon further use of the product identity;

On this note, it follows that use of the power reducing formula on the function sin⁴(6x) is;

Read more on power reducing formula;

https://brainly.com/textbook-solutions/q-exercises-35-38-use-power-reducing-formulas-c7freu

Answer:

12

Step-by-step explanation:

first, find the unit rate. to get the unit rate, we would figure out how many miles he can ride in 1 hour. to get this, divide by 3, to get hours to 1 instead. now divide miles by 3 to get 3 mph. multiply by 4, and you have your answer.

The situation in which triangles will be made congruent for sure is given by: Option ( iii ) Both making a triangle TRY with right angle at T and sides TR =4 cm and RY =5cm

Suppose it is given that two triangles ΔABC ≅ ΔDEF

Then that means ΔABC and ΔDEF are congruent. Congruent triangles are exact same triangles, but they might be placed at different positions.

The order in which the congruency is written matters.

For ΔABC ≅ ΔDEF, we have all of their corresponding elements like angle and sides congruent.

Thus, we get:

[tex]\rm m\angle A = m\angle D \: or \: \: \angle A \cong \angle D \angle B = \angle E\\\\\rm m\angle B = m\angle E \: or \: \: \angle B \cong \angle E \\\\\rm m\angle C = m\angle F \: or \: \: \angle C \cong \angle F \\\\\rm |AB| = |DE| \: \: or \: \: AB \cong DE\\\\\rm |AC| = |DF| \: \: or \: \: AC \cong DF\\\\\rm |BC| = |EF| \: \: or \: \: BC \cong EF[/tex]

(|AB| denotes length of line segment AB, and so on for others).

For two triangles being congruent, we need at least:

Checking all the options:

Only one side and one angle are not enough.

Two equilateral triangles are not necessary to be congruent. Example, one equilateral triangle has sides of 3 units, and other triangle has sides of 5 units.

Two sides TR and RY and a non-included angle T is given. This doesn't satisfy SAS' condition. But since it is given that:

Angle T is right angled, so we now know that RY is going to be hypotenuse.

Using this fact, and the fact that |RY| = 5 cm, |TR| = 4 cm, and Pythagoras theorem, we can get |TY| = 3 cm.

Thus, it will complete SSS condition, and therefore, by SSS congruency, the triangles made in this case would be congruent.

All angles(corresponding) being equal implies similarity, but not congruence.

Thus, the situation in which triangles will be made congruent for sure is given by: Option ( iii ) Both making a triangle TRY with right angle at T and sides TR =4 cm and RY =5cm

Learn more about congruent triangles here:

https://brainly.com/question/16921692

#SPJ1

Answer:

30

Step-by-step explanation:

All of the angles add to 180 degrees for a triangle

x + 2x + 3x = 180

6x = 180

x = 30

Answer:

This implies that the opening price was 21080.28. Explanation: The Dow Jones Industrial Average measures the stock performance of 30 large

Answer:

9.66667

Step-by-step explanation:

The average of all the data in a set.

Answer: [tex]9\frac{2}{3}[/tex]

Step-by-step explanation:

To find the mean we must add all of the numbers together and then divide them by the amount of numbers in the set

This set has 6 numbers

I will solve the addition step by step instead of all at once to make it easier to understand

[tex]\frac{10+13+11+10+5+9}{6} \\\\\frac{23+21+14}{6} \\\\\frac{44+14}{6} \\\\\frac{58}{6} \\\\9\frac{2}{3}[/tex]

Answer:

a

Step-by-step explanation:

if im right, the answer would be in the question :) its asking for the probability of a senior who plays a sport, and the third sentence is "the probability that a student is a senior and plays a sport is 0.08". sorry if im wrong!

Answer:

Rectangular Pyramid

Step-by-step explanation:

The shape is a rectangle.  Thus, leaving only two viable answers.

The picture is not a prism.  Hence, the only option left is a rectangular pyramid.

$920 - $60x

Step-by-step explanation:

after one month, he try would have taken out 60 x 1 dollars, after two months, 60 x 2, 3 months, 60 x 3, etc. so after x months he would have taken out 60x (60 times x) dollars. if he starts with 920 dollars, he would be left with $920 - $60x.

<3

Answer:

35 inches long

Step-by-step explanation:

the answer is 35 inches long because if you do 38x2 because of the two sides you will get 76 then subtract 76 from 146 then you will get 70. Then do 70÷2 to find out the other side and i got 35

Answer:

(a) 5 units up

(b) 3 units right

(c) 7 units left

Step-by-step explanation:

Parent equation:  [tex]y=x^2[/tex]

Transformed equation:  [tex]y = (x - h)^2+ k[/tex]

h translates the parabola horizontally

If h > 0 then the translation is h units to the right.

If h < 0 then the translation is h units to the left.

If h = 0 then there is no horizontal translation.

k translates the parabola vertically

If k > 0 then the translation is k units up.

If k < 0 then the translation is k units down.

If k = 0 then there is no vertical translation.

Part (a)

Given equation:  [tex]y=x^2+5[/tex]

Rewriting in transformed equation form:  [tex]y=(x-0)^2+5[/tex]

Therefore, the parabola is translated 5 units up.

Part (b)

Given equation:  [tex]y=(x-3)^2[/tex]

Rewriting in transformed equation form:  [tex]y=(x-3)^2+0[/tex]

Therefore, the parabola is translated 3 units right.

Part (c)

Given equation:  [tex]y=(x+7)^2[/tex]

Rewriting in transformed equation form:  [tex]y=(x+7)^2+0[/tex]

Therefore, the parabola is translated 7 units left.

Part (d)

Given equation:  unreadable