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andrew11 [14]
3 years ago
9

A bar that turns on a fixed point is called a

Mathematics
2 answers:
Sladkaya [172]3 years ago
8 0
I think it's called the fulcrum. <span>The fulcrum is a pivot </span>point<span>.

</span>
ankoles [38]3 years ago
5 0
A fulcrum is a bar turned on a fixed point
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What is the value of sec<br> in the triangle below?<br> 41 ft<br> 9 ft<br> 40 ft
Juli2301 [7.4K]

Answer:

C

Step-by-step explanation:

\sec( \alpha )  =  \frac{1}{ \cos( \alpha ) }  \\  \\  \sec( \alpha )  =  \frac{1}{ \frac{ad}{hip} }  \\  \\  \sec( \alpha )  =  \frac{hip}{ad}  \\  \\  \sec( \alpha )  =  \frac{41}{40}

3 0
3 years ago
Read 2 more answers
Can somebody help me with this question !​
Pavlova-9 [17]

Answer:

No please! Mr excuse me I am not your type bye

3 0
3 years ago
John is twice as old as his son. In 42 years, the ratio of their ages will be 4:3. What is the son's current age?
dsp73

Answer: Jhon is 42 years old, and his son is 21 years old.

Step-by-step explanation:

Let's define:

J = John's age

S = Age of the son.

We know that:

"John is twice as old as his son"

J = 2*S

"In 42 years, the ratio of their ages will be 4:3. What is the son's current age?"

In 42, their ages will be:

J + 42 and S + 42.

And the ratio 4:3 means that:

(J + 42) = (4/3)*(S + 42)

Then we have the system of equations:

J = 2*S

(J + 42) = (4/3)*(S + 42)

To solve it we can first replace the first equation into the second one, to get:

(2*S + 42) = (4/3)*(S + 42)

2*S  - (4/3)*S = (4/3)*42 - 42

S*(6/3 - 4/3) = (1/3)*42

S*(2/3) = (1/3)*42

S = (3/2)*(1/3)*42 = 21.

And we can find Jonh's age if we use the first equation:

J = 2*S = 2*21 = 42

Jhon is 42 years old, and his son is 21 years old.

8 0
3 years ago
Grampy $12 for 4 baseball packs James paid 28 for seven who got a better deal baseball card packs? And why
vitfil [10]

Answer:

Grampy

Step-by-step explanation:

                money      cards

Grampy=   $12             4 packs

 James=    $28            7 packs

12*2= 24 dollars and 8 packs

while James payed 28 dollars for 7 packs

So Grampy got a better deal.

7 0
3 years ago
If the area of the rectangle is 90 km?, then what is the value of the missing side?
r-ruslan [8.4K]
I believe it would be B.
Logically, it’s the only one that makes sense,
As 9x10= 90
None of the others have any way to divide or multiply up to the area,
So yes, B.
5 0
3 years ago
Read 2 more answers
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