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2 years ago

I’m desperate help me get this right!

Mathematics

2 answers:

rjkz [21]2 years ago

4 0

Answer:

Step-by-step explanation:

Gelneren [198K]2 years ago

4 0

Answer: C

5.04×10−6

Step-by-step explanation:

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svet-max [94.6K]

Answer:

x = 5

Step-by-step explanation:

__________________________________________________________

FACTS TO KNOW BEFORE SOLVING :-

$a^x \times a^y = a^{x+y}$

In an equation , if the bases are same in both L.H.S. & R.H.S. then , the power of the bases on both the sides of equation should be equal. For e.g. : $a^x = a^y$ ⇒ $x = y$ [∵ Bases are equal on both the sides]

__________________________________________________________

$4 \times 8^{2x+1} = 32^{x+2}$

Lets express it in terms of 2.

$=> 2^2 \times 2^{3 (2x+1)} = 2^{5(x+2)}$

$=> 2^2 \times 2^{6x+3} = 2^{5x+10}$

$=> 2^{2 + 6x+3} = 2^{5x+10}$

$=> 2^{6x+5} = 2^{5x+10}$

Here the bases on both the sides are equal. Hence ,

$=> 6x + 5 = 5x + 10$

$=> 6x - 5x = 10 - 5$

$=> x = 5$

6 0

2 years ago

If PR = 5x – 3 and QS = 3x – 5 and QS == PR, what are the length of the diagonals?

OleMash [197]

Answer:

Step-by-step explanation:

5x - 3 = 2(3x - 5)

5x - 3 = 6x - 10

6x - 5x = 10 - 3

x = 7

QS = 3(7) - 5 = 16 units

PR = 5 × 7 - 3 = 32 units

8 0

2 years ago

Hi there can anyone help me out with this please

matrenka [14]

Simple interest,
FV=P(1+ni)
FV=future value=2500
P=present value, invested amount
n=number of years, =3
i=annual interest rate, =0.095
2500=P(1+3(0.095))
Solve for P.

8 0

3 years ago

A cylindrical metal tin has a diameter of 12 inches and a height of 4 inches.

Tanya [424]

Answer:

452.39

Step-by-step explanation:

5 0

3 years ago

Carly tried to solve an equation step by step. Find Carly's mistake.

Phantasy [73]

Answer:

Step 1 is incorrect

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers