All categories

3 years ago

Problem in photo 20 characters

Mathematics

1 answer:

natulia [17]3 years ago

5 0

Answer:

Step-by-step explanation:

i dont know but work hard

You might be interested in

PLEASE HELP!! ILL GIVE BRAINLESS!!

Usimov [2.4K]

Answer:

Step-by-step explanation:

36/12 = 3

3*2 = 6 cm

48/12 = 4

4*2 = 8 cm

4 0

2 years ago

A 9.85 m ladder is placed against a wall. The height to the top of the ladder is 5 m more than the distance between the wall and

Dafna1 [17]

Given:

Length of the ladder = 9.85 m

The height to the top of the ladder is 5 m more than the distance between the wall and the foot of the ladder.

To find:

The height to the top and the distance between the wall and the foot of the ladder.

Solution:

let x be the distance between the wall and the foot of the ladder. Then the height to the top of the ladder is (x+5).

Pythagoras theorem: In a right angle triangle,

$Hypotenuse^2=Base^2+Perpendicular^2$

In the given situation, hypotenuse is the length of ladder, i.e., 9.85 m. The base is x m and the height is (x+5) m.

Using the Pythagoras theorem, we get

$(9.85)^2=x^2+(x+5)^2$

$97.0225=x^2+x^2+10x+25$

$0=2x^2+10x+25-97.0225$

$0=2x^2+10x-72.0225$

Here, $a=2, b=10,c=-72.0225$ . Using the quadratic formula, we get

$x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}$

$x=\dfrac{-10\pm \sqrt{(10)^2-4(2)(-72.0225)}}{2(2)}$

$x=\dfrac{-10\pm \sqrt{676.18}}{4}$

Approximating the value, we get

$x=\dfrac{-10\pm 26}{4}$

$x=\dfrac{-10+26}{4},\dfrac{-10-26}{4}$

$x=\dfrac{16}{4},\dfrac{-36}{4}$

$x=4,-9$

Distance cannot be negative so $x\neq -9.$

Now we have $x=4$

$x+5=4+5$

$x+5=9$

Therefore, the base is 4 m and the height is 9 m.

5 0

3 years ago

Solve the trig. equation for all angles between 0-360. <br> 2cos²θ=1

dsp73

I think it 2 because did on paper

4 0

3 years ago

What does solution mean in math

yanalaym [24]

Answer:

the act or process of forming a solution. the state of being dissolved (esp in the phrase in solution) a mixture of two or more substances in which one or more components are present as small particles with colloidal dimension; colloida colloidal solution. a specific answer to or way of answering a problem.

( I hope this was helpful) >;D

8 0

3 years ago

Fiona bought these exercise aids. Each one measures approximately 25 inches around its base. How can Fiona find the area of an a

Stolb23 [73]

The area of an exercise aid that is textured from the information regarding Fiona is 50 inches².

<h3>How to calculate the area?</h3>

From the information given, the measures or the exercise aid is approximately 25 inches around its base. Therefore, the radius will be calculated thus:

2πr = 25

(2 × 3.142 × r) = 25

6.284r = 25

r = 25/6.284

r = 3.978 = 4

Therefore, the area will be:

= πr²

= 3.142 × 4²

= 50 inches²

Learn more about area on:

brainly.com/question/25292086

#SPJ1

7 0

2 years ago