All categories

3 years ago

HELP PLEASE HELP HELP ANSWER

Mathematics

1 answer:

vova2212 [387]3 years ago

4 0

explica e rspuetas

You might be interested in

! 100 ! Pts... .. .. .. ...

zvonat [6]

Answer:

I did the whole graph myself so you can just couple it down lol ;)

5 0

3 years ago

Read 2 more answers

A store is having a sale. You want a pair of jeans that are $90 and a shirt for $50. They are both on sale for 40% off. The tax

gavmur [86]

Answer: 59.92

Step-by-step explanation:

90 + 50 = 140

140 - 40% = 56

56 + 7% = 59.92

6 0

3 years ago

A foam block is in the shape of a rectangular prism. Can a TRAPEZOID be a cross-section formed by slicing through the block? *

12345 [234]

if this is a yes or no q i think its no

if not im so sorry

5 0

3 years ago

Which quadratic equation has the roots -1+4i and -1-4i

AysviL [449]

Answer:

Step-by-step explanation:

Solve the quadratic in answer choice C using the quadratic formula:

$x=\frac{-b+/-\sqrt{b^2-4ac} }{2a}$ .

Here a=1, b=2, and c=17.

Substitute and you'll have:

$x=\frac{-b+/-\sqrt{b^2-4ac} }{2a} =\frac{-2+/-\sqrt{(-2)^2-4(1)(17)} }{2(1)}=\frac{-2+/-\sqrt{4-68}}{2)}$

$\frac{-2+/-\sqrt{-64} }{2}=\frac{-2+/-8i }{2}=-1+/- 4i$

6 0

4 years ago

Solve the following equations;- x - 9 /√x + 3 =1

fgiga [73]

Answer:

13 , 6.

Step-by-step explanation:

A equation is given to us and we need to find out the value of x . The given equation to us is ,

$\sf\implies \dfrac{ x -9}{\sqrt{x+3}}= 1$

Cross multiply ,

$\sf\implies x - 9 =\sqrt{ x +3}$

Squaring both sides ,

$\sf\implies (x - 9)^2 = x + 3$

Simplify the whole square ,

$\sf\implies x^2+9^2-2.9.x = x +3 \\$

$\sf\implies x^2+81 - 18x = x -3$

Add 3 and subtract x on both sides ,

$\sf\implies x^2 -18x-x +81-3=0$

Simplify ,

$\sf\implies x^2 -19x +78=0$

Split the middle term of the quadratic equation,

$\sf\implies x^2-13x-6x+78=0$

Take out common ,

$\sf\implies x( x -13)-6(x-13)=0$

Take out ( x -13 ) as common ,

$\sf\implies ( x -13)(x-6)=0$

Equate both factors to 0 ,

$\sf\implies \boxed{\pink{\sf x = 13,6}}$

Hence the value of x is 13 or 6 .

7 0

3 years ago