help me quick please

Answer:

193 mg

Step-by-step explanation:

Exponential decay formula:

Our known variables are:

Let's solve for the decay constant of this sample.

Using our new variables, we can now solve for Aₜ at t = 7 years, since we go from 2004 to 2011.

Our new initial mass is A₀ = 270 mg. We solved for the decay constant, r = 0.04794701.

The expected mass of the sample in the year 2011 would be 193 mg.

Answer:

72

Step-by-step explanation:

.30×240

72

Answer:

$72

Step-by-step explanation

Hope this helped!! :)

Stay safe and have a wonderful day/night!!!!!

Brainliest?!?!

Answer:

y=2/3x+23/3

check image

Answer:

If you have 10 phones, this is the 100%

then:

10 = 100%

Now we know that only 3 of them work correctly, then the percentage of pones that works correctly can be related to:

3 = X%

To find the value of X%, we can take the quotient of the equations:

3 = X%

and

10 = 100%

We ge:

(3/10) = (X%/100%)

We solve this for X and we get:

(3/10)*100% = X% = 30%

As we already know.

Now let's see how this percentage changes if we add more phones that do not work correctly.

Now we add another phone that does not work, so we have a total of 11 phones and 3 of them work.

then:

3 = X%

11 = 100%

The quotient is:

(3/11) = (X%/100%)

(3/11)*100% = X% = 27.3%

If we add another phone, now we have 12 phones and only 3 of them works, then 12 is the 100%, and we have the equations:

3 = X%

12 = 100%

Then we get:

(3/12) = X%/100&

(3/12)*100% = X% = 25%

Answer:

58.25n+30p-2

Step-by-step explanation:

Given the expression as;

1 + 4.25n + 32p – 3 + (–2p) + 54n

collect like terms

1-3+4.25n+54n+32p-2p

-2+58.25n+30p

58.25n+30p-2

I have copied one brainly user's answer, sorry for that...

However, hope it helps you!!!

Answer:

c?

Step-by-step explanation:

Answer:

y

Step-by-step explanation:

y

=

4

x

−

26

Explanation:

The slope-intercept form of a line is:

y

=

m

x

+

b

where:

m

is the slope of the line

b

is the y-intercept

We are given that

m

=

4

and the line passes through

(

7

,

2

)

.

∴

2

=

4

⋅

7

+

b

2

=

28

+

b

b

=

−

26

Therefore the equation of the line is:

y

=

4

x

−

26

graph{y=4x-26 [-1.254, 11.23, -2.92, 3.323]}

Answer:

x = 0 or x = 3

Step-by-step explanation:

This is a quadratic equation, but because the constant term is zero, we can speed up the solution by factoring 12x^2 - 36x = 0:

12(x^2 - 3x) = 0, or

12(x)(x - 3) = 0

Thus, either x = 0 or x = 3

Answer:

x = 61°

y = 61°

z = 58°

Step-by-step explanation:

In the given triangle, measures of two sides are equal. So, measures of angles opposite to them are also equal.

Therefore,

[tex]x + x + 58 \degree = 180 \degree \\ \\ 2x = 180 \degree - 58 \degree \\ \\ 2x = 122 \degree \\ \\ x = \frac{122 \degree}{2} \\ \\ x = 61\degree \\ \\ y = 61\degree \\ ( \angle s \: in \: the \: alternate \: segment) \\ \\ z = 58\degree \\ ( \angle s \: in \: the \: alternate \: segment) \\ [/tex]

Answer:

45.5

Step-by-step explanation:

66+3x+8=5x+50

3x+74=5x+50

75=2x+50

2x=25

x=12.5

3×+8=45.5

Answer:

A. 5+3=3+5

Step-by-step explanation:

The commutative property of addition says that changing the order of numbers does not change the sum. In this case, they both equal 8 even though the numbers are switched.

Answer:

hey mate!!

Step-by-step explanation:

-28 is the answer

Answer:

-28

Step-by-step explanation:

Answer is in a photo. I can't attach it here, but I uploaded it to a file hosting. link below! Good Luck!

cutt.us/tWGpn

Answer:

$192

Step-by-step explanation:

160 = 100% or 1.00

20% = 0.2 + 1.00

       =  1.20

160 x 1.20 = $192

Answer:

$192

Step-by-step explanation:

$160 + 20% = $192

Answer:

speed=distance/time

speed=3600/3

speed=1200m/s

Answer:

The car is going 1200 miles per hour.

Step-by-step explanation:

Answer:

158.757

Step-by-step explanation:

look it up

Answer:

Step-by-step explanation:

1 kg = 2.205 lb

350 lb × (1 kg)/(2.205 lb) = 157.8 kg

Answer:

the greatest possible length of each square plot is 1 ft.

1,269 square plots

Step-by-step explanation:

Since the plots are going to be squares then the width and length need to be the same. This means that the largest size of these plots would be calculated as the largest common divisor of the length and width of the garden. In this scenario, since 47 only has two divisors 1 and 47, and 27 is not divisible by 47 then the GCD of these two numbers would be 1. Meaning that the greatest possible length of each square plot is 1 ft.

To calculate the total number of plots needed we divide the square footage of the garden by the square footage of each individual plot like so...

47 * 27 = 1,269 sq. ft.

1 * 1 = 1 sq. ft.

1,269 / 1  = 1,269 plots

Finally, we see that we need a total of 1,269 square plots to cover that same area of the garden.

Answer:

20°

Step-by-step explanation:

Look at the attached photo.

∠a and ∠e are equal because they are vertical angles.

So, m∠a = 110°

Then, ∠f is an exterior angle to angles a and c. So,

m∠f = m∠a + m∠c

Substitute and solve.

130 = 110 + m∠c

m∠c = 20°

Then, ∠c and ∠d are vertical angles so they are equal.

m∠c = m∠d

m∠d = 20°

I hope this helps! Feel free to ask any questions!

Answer:

10

Step-by-step explanation:

because it is

Answer:

Step-by-step explanation:

A line is

y=mx+b where m is the slope, however we are told that this is a horizontal line, thus the slope is zero as y does not change, With zero slope y=mx+b becomes

y=b where the constant b is the value of y. We have the point (5,-7) so b=-7 and the line is

y=-7

Answer:

t = 2.7

Step-by-step explanation:

1. Use formula provided

2. A = 3500 B = 2000 r = 4.75 n = 12months/4 = 3 months t = ?

3. Solve

3500=2000(1+4.75/3)^3t

3t=logbase(31/12)*1500

t=logbase(31/12)*1500 / 3

t ≅2.568

Answer:11.9

Step-by-step explanation:

Answer:

A) 69.08 m

Step-by-step explanation:

C=2πr

C=2π(11)

C=22π

C≈69.12

Answer:

drraaaaaa wild'n out boiii

Step-by-step explanation:

Taking my points back.

Answer:

a=11

Step-by-step explanation:

hold on our servers are swamped

Answer:

96 cm^3

Step-by-step explanation:

I hope this helped!

Answer:

(x=-5 and y =-2) or (x=2 and y=5)

Step-by-step explanation:

i did the math it wasn't that hard

Answer:

Step-by-step explanation:

Those cities are located on the vertices of the triangle.

The circumcenter of a triangle is the point equidistant from the three vertices of the triangle.

Correct option is D.

Answer:

Incenter

Step-by-step explanation:

1) Since the newest location must be at the same distance from that Triangle's verticles.

2) Then, according to that, the point that it's central and equidistant is the incenter, Because the incenter is at the center of an inscribled circle.

3) Hence, the answer is Incenter.

Answer:

-11a - 10

Step-by-step explanation:

simplify in order of terms: -2(4a + 1) - 3a - 13 + 5

simplify: -8a - 2 - 3a - 8

simplify again: -11a - 10