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DaniilM [7]
3 years ago
6

How to find the perimeter of a triangle with one side missing?

Mathematics
1 answer:
irina1246 [14]3 years ago
5 0
Use the Pythagoras Theory to find the missing side
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What are the x-intercepts of the function f(x) = –2x2 – 3x + 20? (–4, 0) and and (4, 0) (–5, 0) and (2, 0) (–2, 0) and (5, 0)
sweet-ann [11.9K]

Answer:

Step-by-step explanation:

If you would like to find the x-intercepts of the function f(x) = - 2 * x^2 - 3 * x + 20, you can calculate this using the following steps:

f(x) = - 2 * x^2 - 3 * x + 20

f(x) = - (2x - 5) * (x + 4)

1. x = - 4

2. x = 5/2

(x, y) = (-4, 0)

The correct result would be (-4, 0).

7 0
4 years ago
Use logarithms to solve each equation
Tomtit [17]
We have this equation:

2x^{\frac{9}{8}} = 111

and we need to find the value of x.

First of all, we multiply the whole equation for 1/2, so our goal is to isolate x, therefore:

x^{\frac{9}{8}}=\frac{111}{2}
 
Next step we must do is to apply logarithms:

logx^{\frac{9}{8}} = log(\frac{111}{2})

Next, we have to apply identities and then to solve the equation:

\frac{9}{8}logx = log(\frac{111}{2})
logx = \frac{8}{9}log(\frac{111}{2})
logx = 1.5504
10^{logx} = 10^{1.5504}

Finally, we have the value of x which was our goal. This is the answer for the question above:

x= 35.5140

The answer is D.
3 0
4 years ago
Write an algebraic expression to
Nataliya [291]

Answer:

x(1+.05)

or 1.05x

Step-by-step explanation:

8 0
3 years ago
A factory makes orange paint by mixing red paint and yellow paint in the ratio 7:2. The factory makes 2700 litres of orange pain
Genrish500 [490]

Answer:

2700÷9=300

300×2=600liters yellow paint

5 0
3 years ago
a swimming pool is shaped like a cylinder with a radius of 15 feet and a height of 6 feet. if one cubic foot holds 7.48 gallons
SOVA2 [1]

Answer: the swimming pool can hold 31707.72 gallons of water.

Step-by-step explanation:

The swimming pool is shaped like a cylinder. The formula for determining the volume of a cylinder is expressed as

Volume = πr²h

Where

r represents the radius of the cylindrical swimming pool.

h represents the height of the pool.

π is a constant whose value is 3.14

Therefore, volume of the swimming pool is

Volume = 3.14 × 15² × 6 = 4239 cubic feet

if one cubic foot holds 7.48 gallons of the water, then the number of gallons of water that the swimming pool can hold is

4239 × 7.48 = 31707.72 gallons of water

5 0
3 years ago
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