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3 years ago

Solve 25^2x+1 = 144

Mathematics

1 answer:

Sergeu [11.5K]3 years ago

4 0

Answer:

X = 0.272

Step-by-step explanation:

Firstly, use a common log on the 25 to undo it. Secondly, use the log25(144) on the other side to get ~ 0.54. Move the 1 over with subtraction and then divide out the 2. This will leave you with X= 0.272

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Please help!!! 98 Points!!! Find the values of x and z.

Anna007 [38]

Answer:

z=63°{vertically opposite angle}

now,

z+10x+97=18o°{straight angle}

63+10x+97=180°

10x=180-133

x=20

10

x=2

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2 years ago

What is 2xy+7y-19x²y=2x simplified?

denpristay [2]

Answer:

Solve the equation for x by finding a, b, and c of the quadratic then applying the quadratic formula.

$x=\frac{y-1+\sqrt{134^2-2y+1} }{19y}$

$x=\frac{y-1-\sqrt{134^2-2y+1} }{19y}$

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2 years ago

A=11+4b-4c. Solve for C.

devlian [24]

Hey Joshua!

The correct answer is option A

a= 11 + 4b - 4c
-4c = a + 11 + 4b
Divide both sides by -4
-4c/-4 = (a + 11 + 4b)/-4
c = a -4b - 11/-4

I hope I helped!

6 0

3 years ago

Triangle S R Q is shown. Angle S R Q is a right angle. An altitude is drawn from point R to point T on side S Q to form a right

satela [25.4K]

Answer:

Option b.

Step-by-step explanation:

Given : $\Delta SRQ$ is right angled triangle . An altitude is drawn from point R to point T on side S Q to form a right angle. The length of S T is 9 and the length of T Q is 16. The length of S R is x.

In the figure, $\angle SRQ=90^{\circ}$ and RT is perpendicular to SQ.

We know that in a right angled triangle if a perpendicular is drawn from the vertex of the right angle to the hypotenuse then triangles on both sides of the perpendicular are similar to each other and to the whole triangle .

Therefore , $\Delta STR\sim \Delta SRQ$

Also, we know that if two triangles are similar then their sides are proportional .

$\frac{ST}{SR}=\frac{SR}{SQ}\\\frac{9}{x}=\frac{x}{25}\\x^2=25\times 9\\x=5\times 3\\=15$

So, option b. is correct

8 0

2 years ago

Read 2 more answers

How long does it take for an investment to double in value if it is invested at 10% compounded monthly question mark monthly?

Margaret [11]

The first step to determining the answer to this item is to calculate for the effective interest using the equation,

ieff = (1 + i/m)^m - 1
where ieff is the effective interest, i is the given interest and m is the number of compounding period.

Part A: m in this item is equal to 12.
Substituting,
ieff = (1 + 0.10/12)^12 - 1 = 0.1047

The amount of money after n years is calculated through the equation,
An = A(1 + ieff)^n
If An/A = 2 then,
2 = (1 + 0.1047)^n
The value of n is 6.96 years

Part B: For the continuously compounding,
An = Ae^(rt)
An/A = 2 = e^(0.10t)
The value of t is equal to 6.93 years.

Hence, the answers:
Part A: 6.96 years
Part B: 6.93 years

7 0

3 years ago