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3 years ago

Can someone answer this soon?!?

Mathematics

1 answer:

Sever21 [200]3 years ago

6 0

First get all the terms on the same side:

$x^2 + 7x - 4 = 0$

Now solve using the quadratic formula which is:

$\frac{-b±\sqrt{b^2 - 4ac} }{2a}$

Plug in the values:

$\frac{-7± \sqrt{49-4(1)(-4)} }{2}$

So the answer is:

$\frac{-7 ± \sqrt{65} }{2}$

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URGENT!!!!!<br> With workings

Aneli [31]

There’s probably an easier way to do it like with the equation to find the area of a trapezoid but i did it this way bc it’s easier for me

i split the trapezoid into a triangle and a square
with the pythagorean theorem i found the missing side length to find the area of the square (length X width)
then found the area of the triangle (base X height divided by 2)

THE ANSWER IS 68.9 CM

6 0

3 years ago

Read 2 more answers

Matt and Mindy each built a rectangular prism that has a length of 5 units , a width of 2 units and height of 4 units . Matt use

DanielleElmas [232]

The volume of a rectangular prism is length times width times height, the answer is 40 inches cubed for Mindys prism and 40 centimeters cubed for MAtts prism.

7 0

4 years ago

What is the value of -92 – 10+ + + 2(145 – 7)?<br> не<br> d<br> ard

Ber [7]

Answer:

-92 - 10 + 2(145 - 7) + 174

Step-by-step explanation:

8 0

3 years ago

Can anyone help not understanding? And can you explain how you got it. Thanks for all your help!

Allushta [10]

No, the height wouldn't be 70 feet, it would be 80 feet.

You would get this answer by using the equation h= A/b (h meaning height)
A = area ( or 20,000)
b= base ( or 250)

Then you divide A by b:
20,000/ 250 =
80

I hoped this helped! :)

8 0

4 years ago

Find the product. (r s)2 r² 2rs s r² 2rs s² r² 2rs 2s².

sveta [45]

The product of the given expression is $\rm 2r^3+ s^3r^3+ 2r^3s + sr^3+ 2s^3+ 6rs$ .

Given

The product of $\rm 2r^2(r + s) + 2rs + s^2 + 2rs + s^2r^2+ 2rs + 2s^2$ .

<h3>What is multiplication?</h3>

Multiplication is the process of calculating the product of two or more numbers.

The multiplication of numbers say, ‘a’ and ‘b’, is stated as ‘a’ multiplied by ‘b’.

The product of $\rm 2r^2(r + s) + 2rs + s^2 + 2rs + s^2r^2+ 2rs + 2s^2$ is given by;

$\rm 2r^2(r + s) + 2rs + s^2 + 2rs + s^2r^2+ 2rs + 2s^2\\\\(2r^3 + 2r^2s) + 2rs + 2rs + 2rs + s^2r^2 + sr^2 + 2s^2\\\\2r^3+ 2r^2s + 6rs + s^2r^2 + sr^2+ 2s^2$

$\rm 2r^3+ s^3r^3+ 2r^3s + sr^3+ 2s^3+ 6rs$

Hence, the product of the given expression is $\rm 2r^3+ s^3r^3+ 2r^3s + sr^3+ 2s^3+ 6rs$ .

To know more about Multiplication click the link given below.

brainly.com/question/19943359

6 0

2 years ago