What is x2 -6x-23=0 using square roots

Answers

Answer 1

Answer: -4x - 23 = 0
+23 = +23
-4x = 23
-4. -4x
Answer:5.75

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HELP WILL MARK BRAINLIEST
[6.02] For the following system, if you isolated x in the first equation to use the Substitution Method, what expression would you substitute into the second equation?-x - 2y = -43x + y = 12

Can you help me solve this question please?

Answers

Answer:

46765 D

Step-by-step explanation:

y= C x 3^t

= 1000x3^3.5

= 46765

I think!

Answer:

D. 46,765.

Step-by-step explanation:

The exponential function is 1000(3)^t where t is the times in hours.

After 3.5 hours the population is 1000(3)^3.5

= 46,765.

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!Factor x^2 + 2x - 15.

A) (x - 5)(x + 3)

B) (x - 5)(x - 3)

C) (x + 5)(x + 3)

D) (x + 5)(x - 3)

Answers

$x^2 + 2x - 15=\n\nx^2-3x+5x-15=\n\nx(x-3)+5(x-3)=\n\n(x+5)(x-3) \Rightarrow \text{D}$

If 35 is 7 times as many as 5, which other statement is true? 35 is 5 more than 7. 5 is 7 more than 35. 35 is 5 times as many as 7. 5 is 7 times as many as 35.

Answers

Answer:

35 is 5 times as many as 7.

Step-by-step explanation:

5*7 = 7*5

hope this helps! please give brainliest :)

What is the diagonal of a rectangle with length 48 inches and width 40 inches?

Answers

Use the Pythagorean Theorem: $a^2 + b^2 = c^2$
You can do this because when you cut the rectangle in half with the diagonal, it forms a right triangle, making the diagonal the hypotenuse (c).

$40^2 + 48^2 = c^2$

$1600 + 2304 = c^2$

$3904 = c^2$

$√(3904) = √(c^2)$

$62.48 = c$

Diagonal: 62.48 inches

i think its D=w2+l2=402+482≈ 62.482in

Rewrite the equation in vertex form: y=x^2-8x+13

Answers

$vertex\ form:y=a(x-p)^2+q\n\nwher\ p=(-b)/(2a)\ and\ q=f(p)\n\n\ny=x^2-8x+13\na=1;\ b=-8;\ c=13\n\np=(-(-8))/(2\cdot1)=(8)/(2)=4\n\nq=f(4)=4^2-8\cdot4+13=16-32+13=-3\n\nAnswer:y=(x-4)^2-3$

Sum of the angles of a polygon with 10 sides is -------

Answers

Answer:

1440°

Step-by-step explanation:

Each exterior angle of a 10 sided regular polygon =360/10=36°

Each interior angle = 180°-36° =144°.

Sum of all interior angles = 144°×10. = 1440°.

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