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3 years ago

HEEEELLLLLPPPPPPPPPPPPPPP

Mathematics

2 answers:

saul85 [17]3 years ago

7 0

The answer is 5.
The triangle is 90° triangle, which means we can use the pythagorean theorem.

a^2xb^2=c^2
3^2=9
4^2=16
9+16=25
That means c^2=25
And the answer is c=5

STatiana [176]3 years ago

4 0

Answer:

Step-by-step explanation:

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I’m in a pickle on this one, help!

sergejj [24]

1.25L + 2.5L + 1L = 4.75L.

Then 4.75L times 3 is 14.25!

Your final answer is 14.25L.

4 0

3 years ago

1. A weight of 18,000 lb is supported on a rectangular base plate that is 9 in. wide and 2 ft long. The base plate rests on a co

slega [8]

Answer:

a) $83.3\ lb/in^2$

b) $12000\ lb/ft^2$

Step-by-step explanation:

Given : A weight of 18,000 lb is supported on a rectangular base plate that is 9 in. wide and 2 ft long. The base plate rests on a concrete slab.

To find : Determine the stress that the base plate exerts on the concrete slab. Express your answer in units of (a) lb/in². and (b) lb/ft².

Solution :

a) A rectangular base plate that is 9 in. wide and 2 ft long.

Converting ft into inches,

1 feet = 12 inch

2 feet = 2×12= 24 inch

The area of the rectangular base is $A=l\times b$

$A_1=24\times 9$

$A_1=216\ in^2$

The weight is W=18,000 lb.

The stress that the base plate exerts on the concrete slab is given by,

$S=\frac{W}{A_1}$

$S=\frac{18000\ lb}{216\ in^2}$

$S=83.3\ lb/in^2$

b) A rectangular base plate that is 9 in. wide and 2 ft long.

Converting inches into ft,

1 inch = $\frac{1}{12}\ ft$

9 feet = $\frac{9}{12}=0.75\ ft$

The area of the rectangular base is $A=l\times b$

$A_2=2\times 0.75$

$A_2=1.5\ ft^2$

The weight is W=18,000 lb.

The stress that the base plate exerts on the concrete slab is given by,

$S=\frac{W}{A_2}$

$S=\frac{18000\ lb}{1.5\ ft^2}$

$S=12000\ lb/ft^2$

5 0

3 years ago

Someone help plZ and tY

alina1380 [7]

Answer:

x = -4

Step-by-step explanation:

x/8 = -1/2

-1/2 = ?/8

2 * 4 = 8

-1 * 4 = -4

2 * 4 = 8

-1/2 = -4/8

x = -4

4 0

4 years ago

Read 2 more answers

The city plans a roadway to have trees every mile. If the path is miles long, how many trees will the city need?

Elina [12.6K]

Answer:

Step-by-step explanation:

the country would need 30 to 33 trees

7 0

3 years ago

Assume the usd equivalent of the norwegian krone is .1425. if you have nkr5,500, how much do you have in us dollars? $42,608.14

Talja [164]

The correct answer from the given option is $38,596.49.
Given that 1USD = 0.1425 Nkr
if i have 5500 Nkr, how many dollars i have; ?
Amount in dollars = 5500 / 0.1425 = $38,596.49
Thus 5500 nkr = 38,596.49 USD

8 0

3 years ago