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3 years ago

I need help with this it’s geometry Pythagorean theorem

Mathematics

2 answers:

myrzilka [38]3 years ago

7 0

Answer:

Step-by-step explanation:

Since the triangle is right use Pythagoras' theorem to solve for BC

The square on the hypotenuse (BC) is equal to the sum of the squares on the other 2 sides, that is

BC² = 80² + 18² = 6400 + 324 = 6724 ( take the square root of both sides )

BC = $\sqrt{6724}$ = 82 → E

Trava [24]3 years ago

3 0

Answer:

E)82

Step-by-step explanation:

The formula is

A^2 + B^2= C^2

the two sides that make up the right angle is always A and B

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Arah went to the grocery store and bought 4 loaves of bread and 1 gallon of milk for $12. The next week, Sarah bought 2 loaves o

sergejj [24]

Answer:

Here, b represents one loaf of bread and m represents the one gallon of milk.

As per the statement:

Arah went to the grocery store and bought 4 loaves of bread and 1 gallon of milk for $12.

⇒ $4b+m = 12$

It is also given that the next week, Sarah bought 2 loaves of bread and 3 gallons of milk for $13.50.

⇒ $2b+3m = 13.50$

Then; system of equation :

$4b+m = 12$ .....[1]

$2b+3m = 13.50$ .....[2]

Solve for b and m using above system of equations.

Multiply equation [2] by 2 we get;

$4b+6m = 27$ .....[3]

Subtract equation [1] from [3] we get;

$4b+6m - 4b -m= 27-12$

Combine like terms;

$5m= 15$

Divide both sides by 5 we get;

m = $3

Substitute the value of m in equation [1] we get;

$4b+3 = 12$

Subtract 3 from both sides we get;

$4b=9$

Divide both sides by 4 we get;

b = $2.25

Therefore, cost of one loaf of bread (b) and one gallon of milk (m) are:

$2.25 ad $3

3 0

3 years ago

Help with these two

kupik [55]

8) there are 3 people and each pays 14.68
3•14.68= $ 44.04 was the entire meal

10) 15 oz that he drank+ 20oz that were left= 35 oz were originaly in the container

5 0

3 years ago

A Tourist Information Center is between a Bus Station and a Train Station. When mapped on a grid, the Tourist Information Center

deff fn [24]

Given :

The Tourist Information Center is located at (11,0) and the Bus Station is located at (-1,-10).

Also , Tourist Information Center is between a Bus Station and a Train Station.

To Find :

The point of location of train station .

Solution :

Let , point of location of train station is ( x,y ).

We know , mid-point of two points ( a, b) and ( c, d ) is given by :

$(\dfrac{a+c}{2},\dfrac{b+d}{2})$ .

Since , Tourist Information Center is between a Bus Station and a Train Station.

So , it is given by :

$( 11 , 0 ) = (\dfrac{-1+x}{2},\dfrac{-10+y}{2})$

Comparing both coordinate :

$\dfrac{x-1}{2}=11\\\\x=22+1\\\\x=23$

and

$\dfrac{y-10}{2}=0\\\\y=10$

Therefore , Train Station is located at point ( 23 , 10 ) .

Hence , this is the required solution .

3 0

3 years ago

Is the square root of 81 9?I think it is.

TEA [102]

Yes, because 9*9 is 81

5 0

3 years ago

Rufina [12.5K]

I think it's a pattern, so x would be 3 and y would be 5 for the first one

x would be 20 for the second

and i dont even do word problems so...

8 0

3 years ago