In a lab, 700 cells are present at the beginning of an experiment. During the first 7 hours,
the number of cells increased by 12% each hour.
Estimate the time when the number of cells is 1735.
Round answer to nearest whole hour.

Answers

Answer 1

Answer:

2 hours

Step-by-step explanation:

1=700

x=1735

1735=700x

1735/700

x=2.47

Answer 2

Answer:

Step-by-step explanation:

This is an exponential equation of the form, A=ar^t, where a is the initial amount and r is the common ratio or rate of growth and t is time. In this case.

A=700(1.12)^t and we want to find when A=1735

1735=700(1.12)^t

1735/700=1.12^t

ln(1735/700)=t(ln(1.12))

t=(ln(1735/700))/(ln(1.12))

t=8 hours


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Solve for what expresssion don’t

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Answer:

Its correct answer is sin65°/125.

4(x + 2) - 1/2x = 22 solve the equation

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Answer:

x=4

Step-by-step explanation:

Answer:

[tex]x_{1} = \frac{7 - \sqrt{51} }{4} , x_{2} = \frac{7 + \sqrt{51} }{4} [/tex]

Step-by-step explanation:

attachment.

Rearrange the following formula to make c the subject.

a= b/c + 5

Answers

Responder

1

cachemirisufyan

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168 respuestas

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2a + 2c = 5a - 5b

recopilar términos ligeros.

toma 2a en el otro lado

2c = 5a -2a-5b

2c = 3a - 5b

divide 2c's 2 en ambos lados

y

c = (3a - 5b) / 2

dar un más inteligente por favor. tnx que tengas un buen día.

GUYS I NEED HELP PLEASE 20 POINTS ASAP

Answers

Answer:

58.28 Sq in

Step-by-step explanation:

Area of the composite figure

=Area of trapezoid + Area of semicircle

[tex] = \frac{1}{2} (15 + 11) \times 4 +\frac{1}{2} \times 3.14\times 2^2 \\ \\ = 26 \times 2+6.28 \\ \\ = 52+6.28=58.28 \: {in}^{2} [/tex]

Hi Please can someone help me please ?????????

Answers

Answer:

z = 106

y = 20

Step-by-step explanation:

help..... simply this fraction
[tex] \frac{22}{40} [/tex]

Answers

Answer:

Reduce the expression, if possible, by cancelling the common factors.

Exact Form:

11/20

Decimal Form:

0.55

22/40

Factor 2 out of 22.

2(11)/40

Cancel the common factors.

Tap for more steps...

11/20

The result can be shown in multiple forms.

Exact Form:

11/20

Decimal Form:0.55

Step-by-step explanation:

Hope it is helpful....

PLZZ help me !funurn

Answers

Answer:

12/25

Step-by-step explanation:

Cassidy the Clown does face painting at the city carnival. She paints 8 faces every 21 minutes. Write an equation that related the number of faces she paints (y) and the time she spends painting (x)
ANSWER WITH A PICTURE ASAP

Answers

Answer:

8y=21x

Step-by-step explanation:

i'm not sure how to draw this out in a picture but the equation is above.

like the question states, Cassidy paints 8 faces in every 21 minutes. the amount of time she spends painting one face would be figured out by dividing 21 by 8 giving you 2.625minutes so i would just say around 3 minutes. so to draw a picture maybe just draw 8 faces and then circle them and say 21 minutes and then put x (to show the time she spent painting each face) under the faces in the picture and then show your work solving this.

in order to find out the ratio of time spent drawing one person's face we have to take the information given and divide the total of 21 minute span by the 8 different faces she painted in order to find how long she spends on 1 face.

hope this helps, if it did please make sure to leave a like, rate, and give me the brainliest if possible!

thanks have a great day!

What is the relationship between sin x and cos y?

Answers

Answer:

It's graph is symmetric to the origin. Cos (x) on the other hand is an even function cos (-x) = cos (x), and its graph is symmetric to the y-axis. Notice also that the graphs are exactly the same shape but horizontally shifted /2 units. They are related by: sin (x) = cos (x - /2) and cos (x) = sin (x + /2).

Step-by-step explanation:

What is the value of -12/a if a = -4?

A: -3
B: -1
C: 3
D: 4

Anyone help please?
:(

Answers

Answer:

C

Step-by-step explanation:

-12

---- if a = -4

a

-12

-----

-4

= 3

Can someone please help me plz

Answers

Answer:

a) 25%

b) 29 - 7 = 22

c) 21

d) 26 - 15 = 11

e) 75%

Step-by-step explanation:

I just need help starting it off !

Answers

similarities - both linear
differences - opposite slopes, one slope is negative one is positive y-intercepts are different, (maybe x intercepts but it is hard to tell)


What is the volume of the cylinder shown below?

Answers

Answer:

there's no cylinder

Step-by-step explanation:

If you can edit the question and put it I'll help you

Question Invalid:

There is no question :(

11.1 x 0.8 x 1.16 x 0.4

Answers

Answer: 4.12032 which is also equivalent to 4:12

ILL MARK U BRAINLIEST HELP!!!

Answers

That is so hard why u I understand how u feel

Answer: x= 14

Step-by-step explanation: look at transversal ED. Angle E and angle D are alternate interior angles of this transversal. Alternate interior angles are equal. Now we need to find angle measure of D to solve. The triangle angle sum theorem states that all interior angles of a triangle sum to 180 degrees. 50+ 48 + D =180.

Measure of angle D is 82. Now that we have the two alternate interior angles, we set them equal to each other to solve.

6x-2= 82. Add 2 to both sides. 6x = 84. Divide both sides by 6. X =14

Help. It’s like 10 points.

Answers

Answer:

Step-by-step explanation:

Step 1. It should say that 9 squared + b squared equals 15 squared, where 15 should be c since it’s the hypotenuse.

i need help, can someone please help!

Answers

Answer:

(25 x 3) - 14 = 61!

Step-by-step explanation:

Please help me with this sheet asap!!!!b

Answers

Step-by-step explanation:

1)

SA= 2 (Length x Breadth + breadth x height + Length x height)

SA= 2(2*5+5*6+6*2)=2(10+30+12)=104cm^2

2)

2(3*4+4*5+5*3)= 2(12+20+15)=94cm^2

3)

2(7*9+9*12+12*7)=2(63+108+84)= 510cm^2

4)

SA=

[tex]A=2πrh+2π {r}^{2}

[tex]A=2πrh+2π {r}^{2} [/tex]

= 2π 6*5+2π6*6= 188.495+226.194

SA= 414.689 cm^2

5)

2π7*4+2π*4*4=

SA=276.46 cm^2

6)

6*4+2π*4*4=

SA= 251.33 cm^2

7)

(3*4)/2=6

(3*4)/2=6

(3*8)=24

4*8=32

8*5=40

SA =6+6+24+32+40=108 cm^2

8)

(6*8)/2=24

(6*8)/2=24

6*12=72

8*12=96

10*12=120

SA= 24+24+72+96+120= 336 cm^2

9)

(5*12)/2=30

(5*12)/2=30

5*8=40

12*8=96

13*8=104

SA= 30+30+40+96+104= 300 cm^2

The expression (x^13)(x^6) is equivalent to x^p. What is the value of p?

Answers

Answer:

p=19

Step-by-step explanation:

since the instructions say that ([tex]x^{13}[/tex])([tex]x^{6}[/tex]) is equivalent to [tex]x^{p}[/tex], we can make the equation:

([tex]x^{13}[/tex])([tex]x^{6}[/tex])=[tex]x^{p}[/tex]

now, apply the laws of exponents; [tex]a^{m} * a^{n} =a^{m+n}[/tex]

in that case, since we're multiplying x to the 13th power by x to the 6th, the result is [tex]x^{13+6}[/tex], which is [tex]x^{19}[/tex]

the equation now:

[tex]x^{19}[/tex]=[tex]x^{p}[/tex]

since the exponents are at the same base, we can solve the equation

19=p

so p is 19

hope this helps :)

What is the slope of a line that passes through the points (-2, 4) and (-6, 12)?

Answers

Answer: Slope = -2

Step-by-step explanation:

[tex]m = \frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

[tex]m = \frac{12-4}{-6-(-2)}[/tex]

[tex]m = \frac{8}{-4}[/tex]

[tex]m = -2[/tex]

Answer:

it would be -2

Step-by-step explanation:

Can somebody help me?

Answers

Answer:

The last two

Step-by-step explanation:

x= 0.6·25

60/100= x/25

Find the solution to the system of equations.

Answers

( -2 , -4 ) is the answer to your question

6. Devon draws one marble from
a bag containing 5 red, 3 green,
and 4 yellow marbles. What is the
probability that Devon draws a
green marble?

Answers

Answer: Probability: 3/12 or 1/4

Step-by-step explanation:

Find the midpoint of the following
two coordinates
Please help!!

Answers

They gave you the formula for doing this! Just substitute the x and y to the corresponding formula.



Order pairs: (7, 5) and (3, 3)

Work: x1 = 7
x2 = 3

y1 = 5
y2 = 3


Now substitute.

1.) (7 + 3)/2 = 10/2

5 = x

2.) (5 + 3)/2 = 8/2

4 = y


Answer: The midpoint is B. (5, 4)

please help and show work ​

Answers

Step-by-step explanation:

11.

tan 30 = perpendicular / base = x/ 7

1/√3 = x/7

X= 7/√3

2.

cos 30 = 7/y

√3/2 = 7/y

y = 7×2/ √3

y= 14/√3

plz mark my answer as brainlist plzzzz.

hope this will be helpful to you ☺️.

A $100 pair of headphones is marked down by 10% and you also have a 20% off coupon. What is the final price, before tax?

Answers

Answer:

$72

Step-by-step explanation:

100 - 10% = 90

90 - 20% = 72

The perimeter of a regular nonagon is 324 cm. Find the length of each side.
A 37
B 27
C 46.3
D 29.5

Answers

Answer:

C

the answer is c I have done this before

Someone help with this if you can

Answers

Answer:

z=74

x=15

Step-by-step explanation:

74+8x-14=180

step 1 combine like terms

60+8x=180

step 2 subtract each side by 60

8x=120

step 3 divide each side by 8

x=15

Answer:

z=74

x=15

Step-by-step explanation:

z=74 because vertical angles are the same

you have to add the z and 8x-14 and set it equal to 180 because the angles at supplementary

help .... me .... asap ....

Answers

9514 1404 393

Answer:

  x = 58

Step-by-step explanation:

The external angle is half the difference of the intercepted arcs.

  (160° -x°)/2 = 51°

  160 -102 = x = 58

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