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2 years ago

Which equation results from taking the square root of both sides of (x 9)2 = 25?

Mathematics

1 answer:

UkoKoshka [18]2 years ago

5 0

The values of the x when the square root is taken on both sides are negative 4 and negative 14.

<h3>What is Algebra?</h3>

Algebra is the study of mathematical symbols and the rule involves manipulating these mathematical symbols.

The equation is given below.

(x + 9)² = 25

Taking square root on both sides, then we have

(x + 9) = ±5

When the positive sign is considered, then we have

x + 9 = 5

x = -4

When the negative sign is considered, then we have

x + 9 = -5

x = -14

More about the Algebra link is given below.

brainly.com/question/953809

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8) Solve the equation for m<br> 7m-(5m-12) =8+2m+4

storchak [24]

Answer:

no solution

Step-by-step explanation:

7m-(5m-12)= 8+2m+4

2m+12= 2m+4

no solution

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3 years ago

Which system of equations has infinitely many solutions?

schepotkina [342]

Answer: B.

$4x - 2y = 8\\-4x + 2y = -8$

Step-by-step explanation:

Let's solve your system by elimination.

4x−2y=8;−2x+2y=6

Add these equations to eliminate y:

4x-2y=8

-2x+2y=6

2x=14

Substitute 7 for x in 4x−2y=8:

(4)(7)−2y=8

−2y+28=8 (Simplify both sides of the equation)

−2y+28+−28=8+−28 (Add -28 to both sides)

−2y=−20

−2y/−2=−20/−2 (Divide both sides by -2)

y=10

3 0

2 years ago

Which pairs of polygons are congruent?

Alla [95]

Answer: Pair 1 and Pair 4

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

write sixty-nine million fifty-eight thousand, two hundred nineteen and three hundredths in standard form show your work will ma

KIM [24]

69,058,219.03

In standard form,

$6.905821903 \times {10}^{7}$

6 0

2 years ago

Ruby has a bird feeder which is visited by an average of 13 birds every 2 hours during daylight hours. What is the probability t

zalisa [80]

Answer:

62.93%

Step-by-step explanation:

We have to solve it by a Poisson distribution, where:

p (x = n) = e ^ (- l) * l ^ (x) / x!

Where he would come being the number of birds that there would be in 40 minutes, we know that in 2 hours, that is 120 minutes there are 13, therefore in 40 there would be:

l = 13 * 40/120

l = 4,333

Now, we have p (x> 3) and that is equal to:

p (x> 3) = 1 - p (x <= 3)

So, we calculate the probability from 0 to 3:

p (x = 0) = 2.72 ^ (- 4.33) * 4.33 ^ (0) / 0! = 0.01313

p (x = 1) = 2.72 ^ (- 4.33) * 4.33 ^ (1) / 1! = 0.0568

p (x = 2) = 2.72 ^ (- 4.33) * 4.33 ^ (2) / 2! = 0.12310

p (x = 3) = 2.72 ^ (- 4.33) * 4.33 ^ (3) / 3! = 0.17767

If we add each one:

0.01313 + 0.0568 + 0.12310 + 0.17767 = 0.3707

replacing:

p (x> 3) = 1 - 0.3707

p (x> 3) = 0.6293

Which means that the probability is 62.93%

5 0

2 years ago