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Anni [7]
4 years ago
12

All the factors of 80

Mathematics
2 answers:
const2013 [10]4 years ago
8 0

Answer:

Factors of 80: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80.

Step-by-step explanation:

Tanya [424]4 years ago
7 0

Answer:

1, 2, 4, 5, 8, 10, 16, 20, 40, 80.

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Hello me with A and B please. And explain how to do it if you can.
prisoha [69]
A)   The larger and small triangles are similar, so

8/10 =  x/15
x =  (8*15)/10 =  12 

b)find the altitude x
tan 40 = x / 5
x = 5 tan 40 = 4.195


By Pythagoras theorem:-

y =  sqrt ( 4.195^2 + 11^2)

y =  11.8  to 3 significant figures
8 0
4 years ago
54 books make up 25% of the books in the library. How many books are there in the library.
Scrat [10]

25% is 1/4.

This means that 1/4 of the books in the library is 54, so just multiply 54 by 4, which gives you 100%, or all of the books. 54 times 4 is equal to 216, so there are 216 books in the library.

4 0
3 years ago
Read 2 more answers
assume x and y are both differentiable functions of t. find dx/dt given x=-1 and dy/dt=8 for the relation: 4x^2+3y^3=28
melomori [17]

Given:

x and y are both differentiable functions of t.

4x^2+3y^3=28

x=-1\text{ and }\dfrac{dy}{dt}=8

To find:

The value of \dfrac{dx}{dt}.

Solution:

We have,

4x^2+3y^3=28       ...(i)

At x=-1,

4(-1)^2+3y^3=28

4+3y^3=28

3y^3=28-4

3y^3=24

Divide both sides by 3.

y^3=8

Taking cube root on both sides.

y=2

So, y=2 at x=-1.

Differentiate (i) with respect to t.

4(2x\dfrac{dx}{dt})+3(3y^2\dfrac{dy}{dt})=0

Putting x=-1, y=2 and \dfrac{dy}{dt}=8, we get

4(2(-1)\dfrac{dx}{dt})+3(3(2)^28)=0

-8\dfrac{dx}{dt}+9(4)(8)=0

-8(\dfrac{dx}{dt}-9(4))=0

Divide both sides by -8.

\dfrac{dx}{dt}-36=0

\dfrac{dx}{dt}=36

Therefore, the value of 4x^2+3y^3=28 is 36.

6 0
3 years ago
Prove the following theorem indirectly. We will give you a start.. . Prove that a triangle cannot have two right angles.. A tria
ladessa [460]
<span>Suppose a triangle had two right angles.
The sum of all angles of any triangle is 180</span>°.
The measure of a right angle is 90°.
By difference, the measure of the other angle can be determined.
Since the two angles have a measure of 90° each, then by difference, the measure of the third angle is 180° - (90° + 90°) = 0°.
If the angle is 0°, there would only be two sides.
A triangle has three sides.
Therefore, a triangle can't have two right angles.
7 0
3 years ago
Read 2 more answers
Select the term that describes the constant portion in this quadratic equation.
Goryan [66]

Answer: 16

Step-by-step explanation:

A quadratic function is a function of the form f(x) = ax2 +bx+c, where a, b, and c are constants and a = 0. The term ax2 is called the quadratic term (hence the name given to the function), the term bx is called the linear term, and the term c is called the constant term.

Therefore, the constant term in the equation is 16.

3 0
3 years ago
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