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Harman [31]
4 years ago
10

4x^2+8x=7 Solve pls and show work :)

Mathematics
1 answer:
gizmo_the_mogwai [7]4 years ago
7 0
4x^2+8x=7=0 i think this is the anwer hope it helps 
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The legs of a right triangle are 3 units and 8 units. What is the length of the hypotenuse? Round your answer to the nearest hun
Alisiya [41]

Answer:

<h2>8.54 units</h2>

Step-by-step explanation:

Given,

Perpendicular ( p ) = 8 units

Base ( b ) = 3 units

Hypotenuse ( h ) = ?

Using Pythagoras theorem:

{h}^{2}  =  {p}^{2}  +  {b}^{2}

plug the values

{h}^{2}  =  {8}^{2}  +  {3}^{2}

Evaluate the power

{h}^{2}  = 64 + 9

Calculate the sum

{h}^{2}  = 73

Squaring on both sides

h =  \sqrt{73}

Calculate

h = 8.54 units

Hope this helps..

Best regards!

5 0
4 years ago
Find the missing angle.<br> (PLEASEEE HURRYYY)
barxatty [35]

Answer:

B

Step-by-step explanation:

360 - (100+91+95) = 74

Because angles in a quadrilateral add upto 360 degrees

7 0
3 years ago
Please answer correctly! I will mark you as Brainliest!
Ymorist [56]
<h3>Answer:</h3>

We know that,

Volume of cone = 1/3πr²h

  • 1/3 × π × (7)² × 9
  • 49 × 3π
  • 147π inches³

So. <u>Correct choice</u> - [B] 147π inches³

7 0
3 years ago
Use multiplying by 1 to find an expression equivalent to 3/14 with a denominator of 14 y.
Soloha48 [4]
As a matter of simplification, same/same = 1.

now, "same" could be anything whatsoever, you name it, a whole polynomial, a whole anything whatsoever.

\bf \cfrac{\sqrt{2}}{\sqrt{2}}=\cfrac{\sqrt{3}}{\sqrt{3}}=\cfrac{100000000}{100000000}=\cfrac{eggs}{eggs}=\cfrac{miles}{miles}=\cfrac{\frac{\quad \sqrt{3}}{\sqrt[5]{17}}\quad }{\frac{\sqrt{3}}{\sqrt[5]{17}}}=\cfrac{whatever}{whatever}=1

now, that said, let us use 1 in this case then ... hmmmm we simply need a "y" in the denominator, so we simply multiply the denominator AND numerator by "y", y/y  = 1 btw.

\bf \cfrac{3}{14}\cdot \cfrac{y}{y}\implies \cfrac{3y}{14y}
6 0
4 years ago
Simplify: (7x^2 − 8x − 4) + (−2x^2 + 3x + 5) + (5x^2 − 10x − 8)
kramer
Step 1. Simplify
7x^2 - 8x - 4 - 2x^2 + 3x + 5 + 5x^2 - 10x - 8
Step 2. Collect like terms
(7x^2 - 2x^2 + 5x^2) + (-8x + 3x - 10x) + (-4 + 5 - 8)
Step 3. Simplify 

10x^2 - 15x - 7
5 0
3 years ago
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