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densk [106]
3 years ago
13

We have 500 mice and want to determine how effective a given cure for a virus. 10 mice are taken from the group and injected wit

h our cure. 7 mice were cured. According to this experiment, how many mice should be cured?
Mathematics
1 answer:
Arturiano [62]3 years ago
3 0

Answer:

350

Step-by-step explanation:

if you take 500-10 that gives you 490 left to cure if 7 of those 10 are cured the 350 out of the total mice would be cured.   if it is not the correct answer i am sorry that is just how I was taught to do it.

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james earned a total of $900 last week. This total was $10 less than five times the amount he earned last week. How much money d
zalisa [80]
It Was $850 Dollars From The Week Before
6 0
3 years ago
I need help on #37!!
Nataliya [291]

Answer:

A) 12.1 , 12.01

B) infinitely large

Step-by-step explanation:

Give that the function f(x)=x2 describes the area of the square, f(x), in square inches, whose sides each measure x inches. If x is changing. 

Using the formula

(f(a + h) - f(a))/h

as x changes from 6 inches to 6.1 inches

a = 6, h = 0.1

= [f(6.1) - f(6)]/0.1

= (6.1^2 - 6^2)/0.1

= (37.21 - 36)/0.1

= 1.21/0.1

= 12.1

and when x changes from 6 inches to 6.01 inches. 

a = 6, And h = 0.01

Using the same formula

(f(a + h) - f(a))/h

= [f(6.01) - f(6)]/0.01

= (6.01^2 - 6^2)/0.01

= (36.120 - 36)/0.01

=0.1201/0.01

= 12.01

B) the instantaneous rate of change of the area with respect to x at the moment when x = 6 inches is infinitely large since h = 0

5 0
3 years ago
Find the area of the figure. PLEASE HELP I NEED IT URGENT PLEASE
ale4655 [162]

Answer:

#5

Area = Area of bigger triangle - Area of small triangle

{ \rm{area = ( \frac{1}{2}  \times b_{b}  \times h_{b}) - ( \frac{1}{2} \times b_{s} \times h _{s} )}} \\  \\ { \tt{area = ( \frac{1}{2} \times 18 \times 7) - ( \frac{1}{2} \times (18 - 13) \times 7)  }} \\  \\ { \tt{area = (9 \times 7) - (2.5 \times 7)}} \\  \\ { \underline{ \tt{ \:  \: area = 45.5 \:  \: sq \: units \:  \: }}}

#8

Area = area of square + area of two right angled triangles

{ \tt{area = (s \times s) + 2( \frac{1}{2}  \times b \times h)}} \\  \\ { \tt{area = (6 \times 10) + (3 \times 5)}} \\  \\ { \underline{ \tt{ \:  \: area = 75 \:  \:  {m}^{2}  \:  \: }}}

5 0
1 year ago
Read 2 more answers
Find the slope of the line through the points (−3, 6) and (2, 6).
Elden [556K]

Answer:

There wouldn't be a slope. It would be 0/5

Step-by-step explanation:

\frac{6-6}{2+3}

6 - 6 = 0

2 + 3 = 5

0/5 isn't a slope.

7 0
3 years ago
Read 2 more answers
The perimeter of a triangle is 65 meters. The second side is 5 meters less than the first side The third side is 7
tangare [24]

Answer:

The length of each side is 31.5m, 26.5m, 7m

Step-by-step explanation:

Let the length of the first side of the triangle be x meters.

Then, the second side is x-5 meters.

The third side is given as 7 meters.

The perimeter is 65 meters

This gives us the equation:

65 = x + x - 5 + 7

65 - 7 + 5 = x + x

63 = 2x

x =  \frac{63}{2}  = 31.5

The length of each side is 31.5m, 26.5m, 7m

4 0
3 years ago
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