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3 years ago

Please help, it's due todaythank you :D

Mathematics

1 answer:

GaryK [48]3 years ago

6 0

Answer:

84 mm²

Step-by-step explanation:

12×14=168

168÷2=84

I got this answer from the formula A= bh÷2

Hi Claudia, hope I am not too late :)

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9n+21−3n−24 simplify

Thepotemich [5.8K]

Alright First you combine the like terms.
9n - 3n = 6n
21 - 24 = -3

Rewrite the simplified equation
6n - 3 = 0

Solve for n
6n = 3
n = 3/6
n = 1/2

Ask if you need more help! :)

6 0

3 years ago

On a coordinate plane, an exponential growth function approaches y = 0 in the second quadrant and goes through points (negative

mojhsa [17]

Answer:

(2,18)

Step-by-step explanation:

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3 years ago

Read 2 more answers

What is the vertex form of y=-2x2+4x + 3?

sukhopar [10]

Answer:

$y=-2(x-1)^2+5$

Step-by-step explanation:

we have

$y=-2x^2+4x+3$

This is the equation of a vertical parabola open downward

The vertex represent a maximum

Convert the quadratic equation into vertex form

step 1

Factor -2

$y=-2(x^2-2x)+3$

step 2

Complete the square

$y=-2(x^2-2x+1)+3+2$

$y=-2(x^2-2x+1)+5$

step 3

Rewrite as perfect squares

$y=-2(x-1)^2+5$ ----> equation in vertex form

The vertex is the point (1,5)

3 0

3 years ago

A rectangular picture frame has side lengths of 12 in by 9.5 in what is the length of the diagonal of the picture

OleMash [197]

Answer:

Length of diagonal of picture = 15.30 inches

Step-by-step explanation:

Given that:

Side lengths of picture frame = 12 inches by 9.5 inches

As the picture is rectangular, the diagonal will form hypotenuse of right angled triangle.

Using Pythagorean theorem;

a²+b²=c²

Putting the values in the theorem

$(12)^2 + (9.5)^2 = c^2 \\144+90.25=c^2\\c^2 = 234.25$

Taking square root on both sides

$\sqrt{c^2}=\sqrt{234.25}\\c=15.30$

Hence,

Length of diagonal of picture = 15.30 inches

3 0

3 years ago

Select all values of w that are solutions to w<5

Mariulka [41]

you want things less than or equal to 5

so A and B

5 0

3 years ago

Please help, it's due todaythank you :D​

Please help, it's due todaythank you :D