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2 years ago

11

Yo guys help pls i really need help!!!!!!!!!!!!!!!!!!!!!! BTW I NEED THE ASNSWER ASAP

1 answer:

ivanzaharov [21]2 years ago

3 0

Answer:

(4,12)

Step-by-step explanation:

If you see in the box all the numbers are multiplied 3 times and in the choice of a,b,c,d only the value of a is multiplied 3 times so that's the answer.

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X^2 +4X+3<br> Complete the square using the method

gayaneshka [121]

Answer:

(x+3)(x+1)

Step-by-step explanation:

Think of using FOIL

First Outer Inner Last

What can you multiply to get to 3 and add up to 4

7 0

2 years ago

PLEASE HELP ME <br> GYGYGYHUHUHH

otez555 [7]

Answer: The answers are in the photo.

Step-by-step explanation:

Hope this helps

3 0

2 years ago

Read 2 more answers

An elliptical culvert is 3.5 feet tall and 6 feet wide. It is filled with water to a depth of 0.95 feet. Find the width of the s

maks197457 [2]

Answer:

$W_s \approx5.3$

Step-by-step explanation:

From the question we are told that

Height $H=3.5ft$

Weight $W= 6ft$

Depth $D=0.95ft$

Generally the equation for ellipses is given as

$\frac{x^2}{a^2} +\frac{y^2}{b^2} =1$

Where

$b=H/2\\b=3.5/2\\Therefore\\b=1.75\\a=W/2\\a=6/2\\Therefore\\a=3\\$

$\frac{x^2}{3^2} +\frac{y^2}{1.75^2} =1$

Generally to find y in the equation $\frac{x^2}{a^2} +\frac{y^2}{b^2} =1$

$y=-b+d$

$y=-1.75+0.95$

$y=-0.8$

Therefore

$\frac{x^2}{3^2} +\frac{(0.8)^2}{1.75^2} =1$

$\frac{x^2}{3^2} =1-\frac{(0.8)^2}{1.75^2}$

$\frac{x^2}{3^2} =1-0.2089795918$

$X^2 =3^2(1-0.2089795918)$

$X^2 =7.119183674$

$X =\sqrt{7.119183674}$

$X =2.66817984$

Therefore the width of the given stream is

$W_s=2.66817984*2$

$W_s=5.33635968$

$W_s \approx5.3$

3 0

3 years ago

4x^2+bx+9=0 has no real number solutions what must be true about b

timama [110]

b^2-4ac<0 b^2-144<0 (b-12)(b+12)<0

-12<b<12

4 0

3 years ago

4z = 2(z + 4)<br> Please help me solve this

mezya [45]

$4z = 2(z + 4)\\
4z=2z+8\\
2z=8\\
z=4$

6 0

3 years ago