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3 years ago

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