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2 years ago

Help plz this hard i really need help

Mathematics

1 answer:

Assoli18 [71]2 years ago

8 0

With all questions???

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Find the probability of having 2,3, or 4

Vikki [24]

Answer:

120%

Step-by-step explanation:

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2 years ago

The hypotenuse of a right triangle is 7 feet long. One leg is 4 feet longer than the other. Find the lengths of the legs, Round

Andrews [41]

Answer:

Shorter leg = 2.5 ft.

Longer leg = 6.5 ft.

Step-by-step explanation:

a^2 + b^2 = c^2

Because the hypotenuse = 7 ft, a^2 + b^2 = 49

To represent the two legs, we can use x and x+4.

x^2 + (x+4)^2 = 49

Simplifying this equation using FOIL gives us 2x^2 + 8x - 33 = 0.

Then, using the quadratic formula, we find that x = 2.5.

Thus, the shorter leg is 2.5 ft. and, when 4 is added, the longer leg is 6.5 ft.

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2 years ago

Fei Yens dog eats 80 ounces of dog foods each day. Fei Yen bought a 28 pound bag of dog food. How many 8 ounce servings are in a

vladimir1956 [14]

Answer: 56 ounce servings

Step-by-step explanation: Good luck! :D

8 0

2 years ago

PRECALCULUS HELP A.0 b.3 C.4 D.7

Oliga [24]

All the numbers in each equation are identical, just the letter changed, which doesn't affect the equation.

Because they are both the same, the answers would be the same, so the difference would be 0.

8 0

2 years ago

Before we can make the mashed potatoes, we need to boil some water. The water starts out at room temperature, 70° F, and increas

Karolina [17]

Answer:

Part a) $y=50t+70$

Part b) $t=2.84\ min$

Step-by-step explanation:

Part a) Create a linear equation

Let

t ----> the time in minutes

y ---> the temperature in °F

we know that

The linear equation in slope intercept form is equal to

$y=mt+b$

where

m is the slope or unit rate of the linear equation

b is the y-intercept or initial value of the linear equation

In this problem we have

The slope m is equal to

$m=50\° F\ per\ minute$

The y-intercept is

$b=70\° F$

substitute

$y=50t+70$

Part b) How many minutes until the water boils at 212° F?

For y=212° F

substitute in the linear equation and solve for t

$212=50t+70$

$50t=212-70$

$50t=142$

$t=2.84\ min$

6 0

2 years ago