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guajiro [1.7K]
3 years ago
13

How do I solve x^2+10x-25 by completing the square

Mathematics
1 answer:
Scilla [17]3 years ago
7 0
(x-5)^2 + (x-5)^2 .........
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Loli-Land Candy Store sells a 12 ounce bag of 60 mints. What is the number of mints per ounce?
Vsevolod [243]
5 because you have to divide 60 by 12.
6 0
2 years ago
The graph below shows the distance, y, in miles, of a bird from its nest for a certain amount of time, x, in minutes:
Montano1993 [528]

Answer:

0.2 miles per minute represents the speed of the bird and 3 miles represents the original distance of the bird from its nest.

Step-by-step explanation:

As there is no graph mentioned here but the information are quite sufficient to answer the question.

We have points (0,3), (5,4),(10,5)...

From these points we can find the slope of the line .

From point slope formula y-y_1=m(x-x_1)

And assigning (x,y) (0,3) and (x_1,y_1) (5,4)

m=\frac{y_1-y}{x_1-x} =\frac{4-3}{5-0} =\frac{1}{5}=0.2

This slope is also the speed of the bird which is 0.2\ miles\ per\ minute.

As by plugging the values of any coordinate point we can confirm this.

Lets put (10,5), y-axis is the distance so in 10 minutes the the distance covered by the bird must be equal to to y-axis value which is 5 miles.

y=0.2(x),y=0.2(10)=5\ miles

Now as in t=0 the bird has started from y-intercept value 3 so we can say that,the original distance of the bird from its nest is 3\ miles.

So the correct choices are:B and D

The birds speed is 0.2\ miles per minute and is 3\ miles away from its nest.

7 0
3 years ago
X-y=3<br> X+2y=-6<br> Solve using substitution
Tresset [83]
X-y=3=>x=3+y
X+2y=-6
=========
3+y+2y=-6
3+3y=-6
3y=-6-3
3y=-9
y=-3

X+2y=-6
X+2(-3)=-6
X-6=-6
X=0
3 0
3 years ago
what is the value of x? SHOW ALL YOUR WORK. ONLY ANSWER IF YOU KNOW. PLEASE DONT REWRITE SOMEONE ELSE'S ANSWER DOWN. WILL MARK B
ioda

Answer:

I'm pretty sure he or she are right^^

Step-by-step explanation:

I Know

7 0
3 years ago
1. 86 Is 45% of what number? A. 86=0.45n B. n=0.45x86 C.0.45=n x 86 D. 86=45n
svetlana [45]
1.A: 86 is equal to (86=) 45 % (which is 0.45) of a number n so 86=0.45n

2. C 4 is npercent of 26, so 4=n*26 where n is a number in percent, with the percent sign!
7 0
2 years ago
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