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2 years ago

Solve the exponential equation- (-5)^2x=625

Mathematics

2 answers:

dalvyx [7]2 years ago

6 0

Answer:

x=25

Step-by-step explanation:

prisoha [69]2 years ago

4 0

x=2

YIYUux= Answer:

Ste

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What is the local maximum value of the function? g (x)=x^4-5x^2+4

Neporo4naja [7]

$g(x)=x^4-5x^2+4 \\ g'(x)=4x^3-5 \cdot 2x^1+0=4x^3-10x \\ \\ 4 x^{3} -10x=0 \\ 2x(2x^2-5)=0 \\ 2x^2-5=0~~~~and~~~2x=0 \\ 2x^2=5~~~~~~~~~~~~~~~~~x=0 \\ x^2=2.5 \\ x= \sqrt{2.5} \\ x=1,58 ~~~~~~and ~~~~x= -1.58$
__-____-1,58____+_____0_______-__1,58_____+____>x

Locol max: 0

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2 years ago

The price of a car has been reduced from $16,500 to $11,055. What is the percentage decrease of the price of the car?

cupoosta [38]

Answer:

33%

Step-by-step explanation:

$16,500-$11,055= $5,445

$5,445÷$16,500= 0.33 which in percentage format is 33%

HOPE THIS HELPS! MARK BRAINLIEST PLEASE!!!!!

4 0

2 years ago

Read 2 more answers

Find x and y using subsitution<br><br> -3x + y = 6<br> 5x + 2y =23

vazorg [7]

$\left\{\begin{array}{ccc}-3x+y=6&|\text{add 3x to both sides}\\5x+2y=23\end{array}\right\\\\\left\{\begin{array}{ccc}y=3x+6\\5x+2y=23\end{array}\right\\\\\text{substitute}\ y=3x+6\ \text{to the second equation}\\\\5x+2(3x+6)=23\qquad|\text{use distributive property}\\\\5x+(2)(3x)+(2)(6)=23\\\\5x+6x+12=23\qquad|\text{subtract 12 from both sides}\\\\11x=11\qquad|\text{divide both sides by 11}\\\\\boxed{x=1}\\\\\text{subtract the value of x to the first equation}\\\\y=3(1)+6\\\\y=3+6\\\\\boxed{y=9}$

<h3>Answer: x = 1 and y = 9 → (1, 9).</h3>

4 0

2 years ago

Read 2 more answers

7 cm

asambeis [7]

use this equation to solve for the surface area.

A=2(w+l+hl +hw)

w stands for width

l stands for length

h stands for height

6 0

2 years ago

If the cube shown is 5 inches on all sides, what is the length of the diagonal, x, of the cube?

Natasha_Volkova [10]

Answer:

5.75 inches

Step-by-step explanation:

The diagonal will always be larger than the height... I think

Hope this helps?

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2 years ago