solve quadratic formula
x-2x-15=0
the first x is squared

Answers

Answer 1

Answer: You said that x² - 2x - 15 = 0 .

You could factor the left side:

(x + 3) (x - 5) = 0

This equation is true if either of the factors is zero.

First factor:
x + 3 = 0
x = -3

Second factor:
x - 5 = 0
x = 5

Answer 2

Answer: $x^2-2x-15=0\n x^2-5x+3x-15=0\n x(x-5)+3(x-5)=0\n (x+3)(x-5)=0\n x=-3 \vee x=5$

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If a chicken farm sold 3,000 dozen eggs last week, how many individual eggs were sold?A. 36,000
B. 250
C. 3,000
D. 3,600

Answers

The number of individual eggs that were sold is (a) 36,000

How many individual eggs were sold?

From the question, we have the following parameters that can be used in our computation:

Eggs = 3000 dozen

By defintiion

1 dozen = 12

substitute the known values in the above equation, so, we have the following representation

Eggs = 3000 * 12

Evaluate

Eggs = 36000

Hence, a total of (a) 36000 individual eggs were sold

Answers

$f(x)=6x+(24)/(x^2)+3\nf'(x)=6-(48)/(x^3)\n6-(48)/(x^3)=0\n6x^3-48=0\n6x^3=48\nx^3=8\nx=2\n$

For $x<2 \wedge x\not=0$ the derivative is negative.
For $x>2$ the derivative is positive.
Therefore at $x=2$ there's a minimum.

$f_(min)=6\cdot2+(24)/(2^2)+3=12+6+3=21$

Complete the pairs of corresponding parts if △ RST ≅ △ TXY. ∠ R =
∠ XYT
∠ XTY
∠ TXY

Answers

Solution:

Given: △ RST ≅ △ TXY

We are given ΔRST and ΔTXY are congruent to each other.

If two triangles are congruent to each other then their corresponding parts are equal.

Please see the attachment of two triangles.

∠R is corresponding to ∠T

∵ ∠R=∠T By CPCT

∠XYT is corresponding to ∠STR

∵ ∠XYT=∠STR By CPCT

∠XTY is corresponding to ∠SRT.

∵ ∠XTY=∠SRT By CPCT

∠TXY is corresponding to ∠RST

∵ ∠TXY=∠RST By CPCT

CPCT: Congruent part of congruence triangle.

So, two triangles are similar. Ordering of letters matters when you are writing this down. So, RST~TXY, then ∠R = ∠T, or ∠TRS = ∠YTX = ∠XTY

☺ ANSWER THIS MATH QUESTION FOR ME ☺
IGNORE THE ALREADY SELECTED ANSWER CHOICE !

Answers

Answer:

D, x = 7

Step-by-step explanation:

This is essentially a transformed square root function

√(30-2x) - x can be rewritten as -x + √-2(x - 15)

The length of a football field is 100 yard and the width is 53 yard. In the fist game of the season, Jos catches the opening kickoff at the corner of the goal line and runs straight as a string the diagonal length of the field to score s touchdown. The next day, the local paper credits Jos for a 100 yard touchdown run, but how far did he actually run

Answers

Given:
Length = 100 yards
Width = 53 yards
Rectangle shape

Jos ran the diagonal length. So, he formed a right triangle. The length Jos ran would be they hypotenuse.

a² + b² = c² ² where c = hypotenuse

100² + 53² = c²
10,000 + 2809 = c²
12809 = c²
c = √12809
c = 113.18 yards.

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