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3 years ago

PLEASE HELP! I WILL GIVE BRAINLIEST! GEOMETRY

Mathematics

2 answers:

ohaa [14]3 years ago

4 0

Answer:

x= 22.5

Step-by-step explanation:

$\frac{9}{x} = \frac{6}{15 } \\ 6x = 135 \\ x = 22.5$

Sonja [21]3 years ago

4 0

X=22.5 is the answer i think

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I'm really bad at these questions

Diano4ka-milaya [45]

Answer:

30 centimeters^2

Step-by-step explanation:

The area of a triangle can be found using the following formula.

A= (b*h)/2

In this triangle, the base is 12 cm. The height is 5 cm, since it forms a right angle with the base.

b= 12 cm

h= 5 cm

A= (12 cm * 5 cm) / 2

Solve inside the parentheses first. Multiply 12 cm and 5 cm.

A= (60 cm^2) / 2

Divide 60 cm^2 by 2

A= 30 cm ^2

The area of the triangle is 30 square centimeters.

6 0

3 years ago

Read 2 more answers

DOES ANYONE KNOW THIS PLEASE HELP IM TIMED FOR 5 minutes

Marrrta [24]

Answer:

y= 5x......eqn(1)

-2x+2y= 12......eqn(2)

now

substituting value of eeqn(1) in eqn(2) ,

-2x+2(5x) =12

-2x + 10x = 12

8x = 12

X = 12 ÷ 8

X= 3/2

now put value of X in eqn (1)

y= 5x

y = 5 × 3/2

y = 15/2

Step-by-step explanation:

not sure any ans but I tried my best : )

3 0

3 years ago

√(11 - 6 √(2))<br> (not decimal form)

bogdanovich [222]

Answer:

$\huge\boxed{\sqrt{11-6\sqrt2}=3-\sqrt2}$

Step-by-step explanation:

$\sqrt{11-6\sqrt2}=(*)\\\\11=9+2=3^2+(\sqrt2)^2\\6\sqrt2=(2)(3)(\sqrt2)\\\\(*)=\sqrt{3^2-(2)(3)(\sqrt2)+(\sqrt2)^2}\\\\\text{use}\ (a-b)^2=a^2-2ab+b^2\\\\=\sqrt{(3-\sqrt2)^2}\\\\\text{use}\ \sqrt{a^2}=|a|\\\\=|3-\sqrt2|=3-\sqrt2\\\\^{\text{because}\ 3>\sqrt2\to3-\sqrt2>0}$

6 0

3 years ago

What is x-3x-4 but the x is squared to the second power

Anna35 [415]

Hey! First of all, you can express x squared as x^2.

Secondly, the problem! I'm assuming you're asking for the values of x - if you're asking what the equation is, it's a quadratic equation, or a second-degree polynomial. Solving for x, this equation can be factored as (x-4)(x+1)=0. Because either of these two terms being zero will make the whole equation zero, we can have x-4=0, in which case x=4, or x+1=0, in which case x=-1. Therefore, x is either 4 or -1

7 0

3 years ago

Consider a sequence generated by the formula f(n) = 6n − 4 starting with n = 1. Generate the terms f(1),

Ierofanga [76]

Answer:

See explanation below

Step-by-step explanation:

To get all the terms in this sequence, all you need to do is to put the values of n, starting from 1 to 5 in the formula.

The part where n is, you just put the value given.

To get for example f(5), you only need to put n = 5 in the formula, do the math and then get the result.

Here are the values of f1, f2, f3, f4 and f5. Again, we will use the following values for n: 1,2,3,4,5

f(1) = 6(1) - 4 = 6 - 4 = 2

f(2) = 6(2) - 4 = 12 - 4 = 8

f(3) = 6(3) - 4 = 18 - 4 = 14

f(4) = 6(4) - 4 = 24 - 4 = 20

f(5) = 6(5) - 4 = 30 - 4 = 26

8 0

4 years ago

PLEASE HELP! I WILL GIVE BRAINLIEST! **GEOMETRY**

PLEASE HELP! I WILL GIVE BRAINLIEST! GEOMETRY