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4 years ago

The perimeter of a triangle is 64cm ,the sides are the ratio 6:5:5 , work out the area of the triangle

1 answer:

4 0

The area is 192 cm^2

the sides are 20 20 24 with the base being 24

to figure out the height you have to use Pythagorean theorem of the triangle cut in half so 12^2 + b^2 = 20^2
b= 16 = height

b*h* .5= area 16* 24* .5= 192

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What is the proportional relationship represented in To make a certain shade of green, Kyle mixes 2 cups of blue paint with 10 c

devlian [24]

Answer:

For every 5 cups of yellow paint, there is 1 cup of blue paint.

Step-by-step explanation:

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3 years ago

A rectangular rug with a width that is 7 feet shorter than its length.

serious [3.7K]

Idk what the hell the question wants from you

But if the width is 7 feet shorter than the length, then this applies:

Length: x

Width: (x-7)

If you want area or perimeter just comment and I gotchu

6 0

3 years ago

which equation represents an exponential function that passes through the point (2, 80)? f(x) = 4(x)5 f(x) = 5(x)4 f(x) = 4(5)x

pav-90 [236]

we know that

if the exponential function passes through the given point, then the point must satisfy the equation of the exponential function

we proceed to verify each case if the point $(2,80)$ satisfied the exponential function

case A $f(x)=4(x^{5})$

For $x=2$ calculate the value of y in the equation and then compare with the y-coordinate of the point

$f(2)=4(2^{5})=128$

$128\neq 80$

therefore

the exponential function $f(x)=4(x^{5})$ not passes through the point $(2,80)$

case B $f(x)=5(x^{4})$

For $x=2$ calculate the value of y in the equation and then compare with the y-coordinate of the point

$f(2)=5(2^{4})=80$

$80=80$

therefore

the exponential function $f(x)=5(x^{4})$ passes through the point $(2,80)$

case C $f(x)=4(5^{x})$

For $x=2$ calculate the value of y in the equation and then compare with the y-coordinate of the point

$f(2)=4(5^{2})=100$

$100\neq 80$

therefore

the exponential function $f(x)=4(5^{x})$ not passes through the point $(2,80)$

case D $f(x)=5(4^{x})$

For $x=2$ calculate the value of y in the equation and then compare with the y-coordinate of the point

$f(2)=5(4^{2})=80$

$80=80$

therefore

the exponential function $f(x)=5(4^{x})$ passes through the point $(2,80)$

therefore

the answer is

$f(x)=5(x^{4})$

$f(x)=5(4^{x})$

7 0

3 years ago

When you solve a word problem involving a quadratic equation which of the following is not a number of solutions can you possibl

Nady [450]

It depends on the value of the discriminant of the quadratic.

If you are familiar with the quadratic formula...

x=(-b±√(b^2-4ac))/(2a)

The part under the radical sign (b^2-4ac) is called the discriminant of the quadratic (of the form ax^2+bx+c)

If the discriminant is less than zero there are no REAL solutions (however there are two imaginary solutions)

If the discriminant is equal to zero, there is just one solution

If the discriminant is greater than zero, there are two real solutions.

So depending on context, if you are to exclude imaginary solutions (which we often do) you can have 0,1, or 2 real solutions.

However you will NEVER have three solutions. (real or imaginary)

6 0

4 years ago

Read 2 more answers

What is 5 to the negative fourth power

damaskus [11]

You can write 5 to the negative fourth power as 5^(-4). In cases, when you have negative power, you just have to put 5^4 in the denominator. So, instead of 5^(-4), you have 1/(5^4).
5^4 equals to 625.
In the last step you have to divide 1 by 625.

The result is 0.0016.

8 0

4 years ago

Read 2 more answers