A county has two elementary schools, both of which have an after-school program for the convenience of working parents. In school A, of the children attend the after-school program; in school of the children attend the after-school program. If school A has 600 students and school B has 900 students , then what is the fraction of elementary school students in the county who attend the after -school program ?

Answer:

A) 5, 12, 13

Step-by-step explanation:

[tex]5^2 + 12^2 = 169[/tex]

[tex]13^2 = 169[/tex]

∴ Option A is a Pythagorean triad.

[tex]1^2 + 2^2 = 5[/tex]

[tex]3^2 = 9[/tex]

∵[tex]5\neq 9[/tex], ∴ Option B is not a Pythagorean triad.

[tex]6^2 + 9^2 = 117[/tex]

[tex]10^2 = 100[/tex]

∵[tex]117\neq 100[/tex], ∴Option C is not a Pythagorean triad.

∴ A is the only Pythagorean triad out all three options.

Hope this helps :)

[tex]\huge\underline{\overline{\mid{\bold{\red{ANSWER}}\mid}}}[/tex]

She needs 45 kg meat for 2 pets

each pet feed the same, i.e,

one pet eats = 45/2 = 22.5 kg meat

then 4 pet dragons will eat = [tex] 22.5kg \times 4 = 90 kg [/tex] meat.

Hence, Amara needs 90 kilograms of meat to feed 4 pet dragons each day.

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[tex]P(x \leqslant 3) = P(1) + P(2) + P(3) \\ [/tex]

[tex]P(x \leqslant 3) = 0.25 + 0.32 + 0.17 \\ [/tex]

[tex]P(x \leqslant 3) = 0.74[/tex]

Thus the correct answer is

the last option .

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Answer:

I believe it is C

Step-by-step explanation:

Answer:

Its C

Step-by-step explanation:

A-P-E-X

Answer:

28.47

Step-by-step explanation:

Answer:

F

Step-by-step explanation:

Given

[tex]\frac{a^2-b^2}{2+d^3}[/tex] ← substitute given values into the expression

= [tex]\frac{6^2-4^2}{2+(\frac{1}{2}) ^{3} }[/tex]

= [tex]\frac{36-16}{2+\frac{1}{8} }[/tex]

= [tex]\frac{20}{\frac{17}{8} }[/tex]

= [tex]\frac{20}{2.125}[/tex]

≈ 9.4118 ( to 4 dec. places ) → F

Step-by-step explanation:

sub in the given values (aka sub slope = -2/5 and point (-2, 3)):

y - 3 = -2/5(x - (-2))

y - 3 = -2/5x - 4/5

y = -2/5x + 11/5

This is a question on coordinate geometry. If you wish to venture further into it/understand this topic better, you may want to follow my Instagram account (learntionary), where I post some of my own notes on certain topics and also some tips that may be useful to you :)

Answer:

I hope this helps you with your algebra

Answer:

Infinity

Step-by-step explanation:

Give brainiest to the other guy/girl they deserve it!!

(Hope dis helps!!!)

Answer

Its the 3rd option

Step-by-step explanation:

Answer:

$12

Step-by-step explanation:

Find the discount by multiplying the cost of the bat by the discount:

80 * 0.15 = 12

Hope that helps! :D

Answer:

11m/min

Step-by-step explanation:

slope of the line = velocity of the turtle

slope = y/x

= 55/5

=11

Answer:

11

Step-by-step explanation:

55 meters by 5 minutes, so divide 55 by 5 to find one minute.

55/5 = 11

Answer:

-70b+22

Step-by-step explanation:

Simplify each term

apply the distributive property

2-10(7b)-10 *2

multiply 7 by -10

2-70b+-10*-2

multiply -10 by -2

2-70b+20

add 2 and 20

-70b+22

Answer:

Select the correct answer.

Scientists studying biodiversity of amphibians in a rain forest have discovered that the number of species is decreasing by 2% per year. There are currently 74 species of amphibians in the rain forest. Which logarithmic function models the time, , in years, it will take the number of species to decrease to a value of n?

The answer is D.

Step-by-step explanation:

The logarithm function that models the time, f(n) , in years is [tex]\rm f(n) = log_{0.98} (\dfrac{n}{74})[/tex], the correct option is D.

An exponential function can be represented in the form f(x) = abˣ.

The number of species is decreasing by 0.02

Current number of species = 74

The time f(n) years is given by

f(n) = 74 (0.98)ⁿ

Converting exponent to logarithm form

x = aⁿ

y = logₓ a

f(n) = 74 (0.98)ⁿ

[tex]\rm f(n) = log_{0.98} (\dfrac{n}{74})[/tex]

To know more about Exponential Function

https://brainly.com/question/11487261

#SPJ5

Answer:

y = 7      x = 45

Step-by-step explanation:

[tex]x=45[/tex] because the triangle is a right angle isocele triangle so 180-90 =90

90 / 2 =45 = x

[tex]\frac{7\sqrt{\:2}}{\sin \left(90\right)\:}=\frac{y}{\sin \left(45\right)}[/tex] so  y = 7

Answer:

y =7

this is your answer

Answer

ok the answer is C

Step-by-step explanation:

1.75*4=7

.75*2=1.5

7+1.5=8.50

Answer:

c= 1.16n

Step-by-step explanation:

j

Step-by-step explanation:

a)97

b)83

c)66

d)114

e)83

f)97

g)114

h)66

i)83

j)66

k)83

l)97

m)114

n)66

Answer:

n= -3

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

4n+2=6(

1

3

n−

2

3

)

4n+2=(6)(

1

3

n)+(6)(

−2

3

)(Distribute)

4n+2=2n+−4

4n+2=2n−4

Step 2: Subtract 2n from both sides.

4n+2−2n=2n−4−2n

2n+2=−4

Step 3: Subtract 2 from both sides.

2n+2−2=−4−2

2n=−6

Step 4: Divide both sides by 2.

2n

2

=

−6

2

n=−3

Answer:

n = -3

Step-by-step explanation:

The first step you want to do is try to get rid of those parenthesis and to do that you want to distribute the 6 into 1/3n and 2/3 and you get

4n + 2 = [tex]\frac{6}{3}[/tex]n - [tex]\frac{12}{3}[/tex]

that can be simplified to

4n + 2 = 2n - 4

subtract 2n from both sides and you get

2n + 2 = -4

subtract 2 from both sides

2n = -6

divide both sides by 2 you get

n = -3

Answer:

st i think

Step-by-step explanation:

Answer:

I seem to have learned this, but I just don't remember how to do it? Even if I remember, I don't know how to count it?

Answer: The answer should be 4. So it should be written as d = 4. You answer this equation by removing the parentheses, calculating, moving the terms, collect the like terms and calculate some more, then finally divide both sides. Hope this helps!

Answer:

lol

Step-by-step explanation:

Answer:

Five Finger Death Punch

Step-by-step explanation:

Answer:

Step-by-step explanation:

Associative property of multiplication:

It makes calculations easier by by grouping easy ones. Applying to given expression:

Answer:

(6*3/2)1/5

Step-by-step explanation:

A-P-E-X

3.6.2 CST

Answer:

x=3

Step-by-step explanation:

Answer:

......the answer is 6......

Answer:5c+4

Step-by-step explanation:

Answer: 37.5 V

Step-by-step explanation:

Answer:

There is a 55% increase in the number of games.

Step-by-step explanation:

Step 1: Calculate the change (subtract old value from the new value)

Step 2: Divide that change by the old value (you will get a decimal number)

Step 3: Convert that to a percentage (by multiplying by 100 and adding a % sign)

Answer:

20=100%

31=x

31*100/20=155%

Step-by-step explanation:

Answer:

y=2.50x+20

Step-by-step explanation

Slope intercept equation is = y=mx+b

So you BEGIN with 20, which is your membership fee (it only gets charged once) then your mx is your slope. 2.50 is your slope because they earn 2.50 for each (x) video rented.  

you place a number beside the x for each video rented. For example, if you rent 2 videos then you write this y=2.50(2)+20

Answer:

slope:2.50

y intercept:20$

Step-by-step explanation:

Answer:

A= 12

B = -4

Step-by-step explanation:

( -3,0) & (0,9) should satisfy the equation Ax + By = -36

when ( -3,0)

-3A+ 0 = -36

A = 12

when (0,9)

0 + 9B = -36

B = -4

The value of A and B is 12 and -4.

Given that,

Based on the above information, the calculation is as follows:

Ax + By = -36

When (-3,0)

So,

-3A+ 0 = -36

A = 12

Now  

when (0,9)

So,  

0 + 9B = -36

B = -4

Therefore we can conclude that the value of A and B is 12 and -4.

Learn more: brainly.com/question/3334417

Answer:

3x + 7 = -20

3x = -20-7

3x = -27

3x ÷ 3 = x

- 27 ÷ 3 = -9

x= -9

Answer:

The correct answer is C: 5 root 2

Step-by-step explanation: