All categories

3 years ago

Cannnn someone help me

Mathematics

1 answer:

Eva8 [605]3 years ago

4 0

Answer:

55 ft... The ladder must extend 55ft

Step-by-step explanation:

$c = \sqrt{a ^{2} + b ^{2} } \\ = \sqrt{33 ^{2} + 44 ^{2} } \\ = \sqrt{1089 + 1936 } \\ = \sqrt{3025} \\ c = 55$

You might be interested in

What is a modulus? <br>please explain.

Alex777 [14]

the factor by which a logarithm of a number to one base is multiplied to obtain the logarithm of the number to a new base. b : absolute value sense 2.

hope this helps!

4 0

2 years ago

4x+13x=119 what does x=?<br> x=7

Marat540 [252]

Answer:

x = 7

Step-by-step explanation:

Given

4x + 13x = 119 ( collect like terms on left side )

17x = 119 ( divide both sides by 17 )

x = 7

6 0

4 years ago

Read 2 more answers

Which are the solutions of x2 = 19x + 1?

Finger [1]

Answer:

$(\frac{19-\sqrt{365}} {2},\frac{19+\sqrt{365}} {2})$

Step-by-step explanation:

we have

$x^2=19x+1$

we know that

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$-x^{2}-19x-1=0$

$a=1\\b=-19\\c=-1$

substitute in the formula

$x=\frac{-(-19)\pm\sqrt{-19^{2}-4(1)(-1)}} {2(1)}$

$x=\frac{19\pm\sqrt{365}} {2}$

$x=\frac{19+\sqrt{365}} {2}$

$x=\frac{19-\sqrt{365}} {2}$

$(\frac{19-\sqrt{365}} {2},\frac{19+\sqrt{365}} {2})$

therefore

StartFraction 19 minus StartRoot 365 EndRoot Over 2 EndFraction comma StartFraction 19 + StartRoot 365 EndRoot Over 2 EndFraction

6 0

3 years ago

Read 2 more answers

Help please 17 points!!

Darina [25.2K]

Answer:

I dont really do this kind of work but i think its A

Step-by-step explanation:

3 0

3 years ago

A box contains 6 yellow, 3 red, 5 green, and 7 blue colored pencils. A colored pencil is chosen at random, replaced, then anothe

ivolga24 [154]

Answer: 7/21 for blue and 6/21 for yellow. so 7/14

Step-by-step explanation:

7 0

3 years ago