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3 years ago

I need help please help me please if you have done this

Mathematics

2 answers:

Ludmilka [50]3 years ago

8 0

Answer:x>-1

Step-by-step explanation:

GarryVolchara [31]3 years ago

3 0

Answer:

x>-1

Step-by-step explanation:

On the number line you can see that x is greater than -1

By the way the dark blue line represents what x equals :)

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Factor 70q+60. Write your answer as a product with a whole number greater than 1.

faltersainse [42]

Answer:

10(7q + 6)

Step-by-step explanation:

Find the GCF of 70 and 60: 10
Divide each number by 10 (steps shown below)
70q ÷ 10 = 7q
60 ÷ 10 = 6
Re-write the expression with 10: 10(7q + 6)

I hope this helps!

7 0

3 years ago

15 POINT QUESTION; I REALLY NEED HELP

Ksenya-84 [330]

Answer:

the line modeling the baking powder and the flour used

Step-by-step explanation:

plato master test

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3 years ago

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A drug is eliminated from the body through urine. Suppose that for a dose of 10 milligrams, the amount A(t) remaining in the bod

adell [148]

Answer: a - 4.512 hours

b - 1.94 hours

Step-by-step explanation:

Given,

a) A(t) = 10 (0.7)^t

To determine when 2mg is left in the body

We would have,

A(t) = 2, therefore

2 = 10(0.7)^t

0.7^t =2÷10

0.7^t = 0.2

Take the log of both sides,

Log (0.7)^t = log 0.2

t log 0.7 = log 0.2

t = log 0.2/ 0.7

t = 4.512 hours

Thus it will take 4.512 hours for 2mg to be left in the body.

b) Half life

Let A(t) = 1/2 A(0)

Thus,

1/2 A(0) = A(0)0.7^t

Divide both sides by A(0)

1/2 = 0.7^t

0.7^t = 0.5

Take log of both sides

Log 0.7^t = log 0.5

t log 0.7 = log 0.5

t = log 0.5/log 0.7

t = 1.94 hours

Therefore, the half life of the drug is 1.94 hours

6 0

3 years ago

PLEASE HELP I WILL MARK BRAINLEST 20 POINTS<br> what would be x in this ordered pair (3 -8)

telo118 [61]

Answer:

Step-by-step explanation:

X goes first

4 0

3 years ago

Read 2 more answers

The combined height of one fir tree and one pine tree is 212121 meters. The height of 444 fir trees stacked on top of each other

Drupady [299]

Answer:

Height of fir tree = 9 meters

height of pine tree= 12 meters

Step-by-step explanation:

The combined height of one fir tree and one pine tree is 21 meters. The height of 4 fir trees stacked on top of each other is 24 meters taller than one pine tree.

Let x be the height of fir tree and y be the height of pine tree

$x+y=21$

Subtract x from both sides

$y=21-x$

height of 4 fir trees = pine tree +24

$4x=y+24$

Substitute 21-x or y in the above equation

$4x=21-x+24$

Add x on both sides

$5x=45$

Divide by 5 on both sides

x=9

Now plug in 9 for x and find out y

$y=21-x$

$y=21-9$

y=12

Height of fir tree = 9 meters

height of pine tree= 12 meters

4 0

3 years ago