Mathematics High School

Angad was thinking of a number. Angad doubles it, then adds 8 to get an answer of 68.4. What was the original number?​

Answers

Answer 1

Answer:

The answer is 30.2

Step-by-step explanation:

subtract 8. Then divide by 2

Answer 2

Answer: 30.2

Step-by-step explanation: so 68.4 - 8 because Angad added 8 so we have to subtract that. So 60.4 divided by 2 because Angad doubled the number,  gets us 30.2.

Hope I could help!

Related Questions

ok, I need help now! this is due very soon. please no spam, I need an actual answer.


Find the perimeter of the trapezoidal brick to the nearest tenth of an inch.

Answers

In order to do this you would have to use the Pythagorean Theorem which is a^2 +b^2 =c^2. Because we know that the top line is equal to 5 inches then you can assume that the line from the line that equals 3 inches to the left bottom left corner of the trapezoid equals 2 inches because this trapezoid is signifying that both sides are equal. So then you would use the Pythagorean Theorem to find the two unknown sides by doing 2^2 +3^2=c^2 when you combine like terms, it comes out to be 13=c^2 which when you square root it, equals about 3.6. So then you know that each of the unknown sides equal 3.6, so then you add them all up to get 3.6+5+3.6+9=21.2 inches Hope this helps

In ΔSTU, the measure of ∠U=90°, ST = 67 feet, and TU = 14 feet. Find the measure of ∠T to the nearest degree.

Answers

Answer:

78

Step-by-step explanation:

Answer:

78

Step-by-step explanation:

Is the product of two binomials always a trinomial? Give an example to support your answer.

Answers

Answer:

Consider: (a+b)(a-b)=a^2-ab+ab-b^2=a^2-b^2. This is a binomial. Hence, it is not always true that the product of two binomials is a trinomial.

Step-by-step explanation:

(a+b)(a-b)=a^2-ab+ab-b^2=a^2-b^2. This is a binomial. Hence, it is not always true that the product of two binomials is a trinomial.

3. What are the intersection points of the line whose equation is y=3x +3 and the
circle whose equation is (x - 2)² + y2 = 25?

Answers

Answer:

Points of intersection of these graphs are (-2, -3) and (0.6, 4.8).

Step-by-step explanation:

Equation of the circle → (x - 2)² + y² = 25 ---------(1)

                                   → (x - 2)² + (y - 0)² = 5²

By comparing this equation with the standard equation of the circle,

(x - a)² + (y - b)²= r²

Here (a, b) is the center and r is the radius of the circle.

Therefore, center of the circle is (2, 0) and radius = 5 units

Second equation is a linear equation → y = 3x + 3 -------(2)

x-intercept of the equation → x = -1

y-intercept of the equation → y = 3

By graphing these equations we can get the point of intersections.

Solving these equations algebraically,

Substitute the value of y from equation (2) in the equation (1),

(x - 2)² + (3x + 3)² = 25

x² - 4x + 4 + 9x² + 18x + 9 = 25

10x² + 14x - 12 = 0

5x² + 7x - 6 = 0

x = [tex]\frac{-7\pm \sqrt{7^2-4(5)(-6)}}{2(5)}[/tex]

x = [tex]\frac{-7\pm \sqrt{169}}{10}[/tex]

x = [tex]\frac{-7\pm13}{10}[/tex]

x = -2, 0.6

From equation (2),

y = -3, 4.8

Therefore, points of intersection of these graphs are (-2, -3) and (0.6, 4.8).

hey guys! Please help this is an important homework grade and could bring me down a lot. If you help I would appreciate it so much. If answer is right I will mark you brainliest. Have a good night.

Answers

Answer:

[tex]y = x - 8[/tex]

Step-by-step explanation:

Slope-intercept form is:

[tex]y = mx + b[/tex]

Where m = slope and b = y-intercept.

It is stated that the slope of the line is 1.

It is stated that the line includes the point (0, 8)

To find the y-intercept, we can just inverse the slope-intercept form to solve for b.

[tex]b =y-mx[/tex]

We know that the point (8, 0) falls on the line, so that's what we'll use for x and y.

Then, we just have to plug those numbers in, as well as the slope.

[tex]b = 0 - (1)(8)[/tex]

Simplify.

[tex]b = 0 - 8[/tex]

Simplify again.

[tex]b = -8[/tex]

Now, we know that b = -8.

All we have left is to plug the slope and y-intercept into the slope-intercept form.

[tex]y = x - 8[/tex]

Jessica has 1,386 books. She must pack them into boxes to ship to a bookstore. Each box holds 10 books. How many boxes will she need to pack all of the books?

Answers

You would divide then round up 1,386÷10= 139

Need help ASAP!!!!!!!!

Answers

Answer:

24/35

Step-by-step explanation:

Asher is a asked to find the factors of 10 his work is below 10×1 = 10 10×2 = 2030 so the factors of 10 or 1020 and 30 which statements are true of ashes work in his answer check all that apply

Answers

Answer:

O Asher found multiples of 10, not factors of 10.

O Asher should have gotten this as the answer: 1,2,5, and 10

Step-by-step explanation:

Here is the full question :

Asher is asked to find the factors of 10. His work is below. 10 x 1 10 10 x 2 20 10 x 3 30 So, the factors of 10 are 10, 20, and 30 Which statements are true of Asher's work and his answer? Check all that apply

O Asher made errors in multiplication.

O Asher found multiples of 10, not factors of 10.

O Asher should have multiplied 10 x 4 as well.

O Asher should have gotten this as the answer: 1,2,5, and 10

O Asher should have gotten this as the answer: 10, 20, 30 40,

Factors are numbers that can divide a number exactly so that there would be no decimals.

The factors of 10 are 1,2,5,10

These numbers divide 10 exactly.

A multiple of a number are numbers derived by multiplying a number by an integer

Multiples of 10 include = 10, 20 , 30, 40, 50, 60, 70, 80, 90, 100

Use synthetic division to find the result when 2x^4+11x^3+11x^2-15x-18 is divided by x-2?

Answers

at first write the first coefficient just below it then multiply with 2 ( if there is x-2 we should take 2 and vice versa ) keep repeating this process

Please help it’s due today

Answers

Answer: C f(x) = 16*(1/2)^ (x-1)

Step-by-step explanation:

You are dividing by 2 each time

list all factors of 225​

Answers

Answer:

225=5²×3²

3×75

9×25

45×5

1×225

15×15

Solve for x and y in the figure below

Answers

Answer:

x = 3 and y = 6

Step-by-step explanation:

Hope this helps :)

Answer:

x = 3, y = 30

Step-by-step explanation:

Since the 3 sides are congruent then the triangle is equilateral.

The 3 angles are congruent and equal tp 60°

Evaluate each of the angles to 60 and solve for x and y , that is

25x - 15 = 60 ( add 15 to both sides )

25x = 75 ( divide both sides by 25 )

x = 3

and

2y = 60 ( divide both sides by 2 )

y = 30

i need a number for this question !!!! hurry pleasee !!!!!!

Answers

Answer:

1

Step-by-step explanation:

every output has a different input so the answer would be one

Answer:

A function is a specific type of relation in which each input value has one and only one output value. An input is the independent value, and the output value is the dependent value, as it depends on the value of the input.

Please help me thank you so much!!!!!!!!

Answers

2.5m x 2 hope it helps your welcome

You are a T.V. salesperson who gets an 8% commission. How much commission do you
get when you sell a $400 T.V.?

Answers

Answer:

400 x 8% = $32.00

Step-by-step explanation:

I will mark Brainlyst

Answers

I think it is D
(I think)

Find the measure of each angle.
Pls help I’m so confused

Answers

Answer:

1: 63°

2: 117°

3: 63°

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Pls help ASAP
Simplify [tex]\sqrt{.64x^2}[/tex] if [tex]x\leq 0[/tex]
The answer is not (4/5)x

Answers

You actually got it correct! Chances are they just want it in decimal form: 0.8x

A baby dolphin is born into the ocean, which is a fairly cold environment. Water has a high heat conductivity, so the thermal regulation of a newborn dolphin is quite important. It has been known for a long time that baby dolphins' blubber is different in composition and quantity from the blubber of adults. Does this make the babies better protected from the cold compared to adults? One measure of the effectiveness of blubber is its "conductance". This value as calculated on 5 newborn dolphins and 6 adults dolphins (Dunkin et al. 2005).

Answers

Answer:

Yes

Step-by-step explanation:

Yes, the difference in composition and quantity from the blubber of baby dolphins in comparison to that of adults allows them to regulate and maintain their body temps much more efficiently. This in term allows baby dolphins to have a much higher probability of survival as opposed to if their blubber was the same as adults. Once they reach a certain age the composition begins to change since they are able to more easily adapt to their environment.

PLS HELP FAST WILL GIVE BRAINLIEST

Answers

Answer:

ASA

Step-by-step explanation:

Please tell me the steps to get to the answer.​

Answers

Answer:

10 cm x 15 cm i think

Step-by-step explanation:

Answer:

Area = 1/2 bh

Step-by-step explanation:

10 x 15 = 150/2 which is 75

The radius of the circle is given in meters. What is the circumference of the circle? Use
3.14 for a pi

Answers

Answer:

50.24 meters

Step-by-step explanation:

The equation for the circumference of a circle: 2πr

2 x 3.14 x 8 = 50.24

Express 24 inches to 6 feet in simplest form.

Answers

Answer:

no

Step-by-step explanation:

Help i have 10 mins left

Answers

Answer:

I love you

Step-by-step explanation:

mhuuuuaaaaa good luck

You are given a geometric sequence where a1 = 4 the common ratio is 6. Find the fifth term.

Answers

So given the formula 4 is going to be your first term 6 is the number you are multiplying/dividing! So 4x6 24 or -24

Help plz Its due today and I need help so if u would plz answer I would appreciate it

Answers

The answer is C because u have to combine the like terms in this problem you would subtract the two problems

A physicist needs 3,220 g of titanium to complete an experiment. She has 3 kg. How many more
kilograms of titanium does she need?
The physicist needs kg more.
(Type an integer or a decimal.)

Answers

Answer: 0.22kg

Step-by-step explanation:

if she has 3 kg then she has 3000 g. 3220-3000=220 So she needs 220 more grams of titanium. If she needs to convert how much more from grams to kilograms then 220g= 0.22kg so she needs 0.22 kg more

To check work

3kg+0.22kg= 3.22kg

3.22kg= 3,220g

What is the distance of segment BF (look closely...it isn't drawn)?

Round to the nearest hundredth.

Answers

The distance of BF is 7.07

a. What is the circumference of the
largest circle that can be cut from a
square measuring 30 cm on a side?
Use 3.14 for T.


b. What percent of the perimeter of the
square is the circumference of the
circle?

Answers

Answer:

Step-by-step explanation:

a. The diameter of the circle will be 30 cm

So circumference is 3.14 * 30  = 94.2 cm.

b. Required percentage = (94.2) * 100 / (4*30)

= 78.5%.

Which of the following is a Prime Number? 9, 5,4 ​

Answers

Answer:

5

Step-by-step explanation:

9 = 1,3,9

5 = 1,5

4 = 1,2,4

Answer: 5

Explanation: 5 has only two factors they are 1 and 5 this makes it a prime number

I would appreciate brainliest if this was helpful and correct! :)
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