Ken, a meteorologist, is predicting next year's temperatures in New York City. He predicts that, in August, the average low temperature will be 20°C, and that the temperature will drop by 4°C in September. Ken's predicted temperature for September is how many ºC

Answer:

D. y = (3/4)x + 10

Step-by-step explanation:

since it has to be in a formula of y = mx + b, it can't be a or b

y - 4 = 3/4 (x + 8)

y - 4 = (3/4)x + 6

y = (3/4)x + 10

Answer:

1002 - 712984 =711 982 - 4763987= 405 2005 - ______= 970 610 x 0.00230782703 = 2240.

250 x 1000 = 250000

2155050 x 4 = 8620 200 x 0.00464026356 = 40000

Step-by-step explanation:

a) i) 1002 - ______ =711 982

= 1002- x = 711982

= 1002 - (-711982) = x

= 712984

ii) 711 982 - _______= 405 2005

711982 - x = 4052005

x = 711982 -(- 4052005)

x = 4763987

iii) 970 610 x ____= 2240

2240 ÷ 970610 = 0.00230782703

iv) ______ x 1000 = 250000

= 250000 ÷ 1000

= 250

v) _______ x 4 = 8620 200

8620200 ÷ 4 = 2155050

vi) 8620 200 x _______ = 40000

= 40000 ÷ 8620200

= 0.00464026356

b) ¿Qué NUMERO DIVIDIDO ENTRE 2 ES IGUAL A 8642?

x ÷ 2 = 8642

x = 8642 × 2

x = 17284

c) ¿Qué NUMERO DIVIDIDO ENTRE 3 ES IGUAL A 8643?

x ÷ 3 = 8643

x = 8643× 3

x = 25929

d) ¿Qué NUMERO DIVIDIDO ENTRE 5 ES IGUAL A 9640?

x ÷ 5 = 9640

= 9640 × 5

= 48200

e) ¿Qué NUMERO DIVIDIDO ENTRE10 ES IGUAL A 6420?

= x ÷ 5 = 6420

= x = 6420 × 5

= x = 32100

f) ¿Qué NUMERO DIVIDIDO ENTRE 20 ES IGUAL A 2000?

= x ÷ 20 = 2000

= x = 2000 × 20

x = 40000

Answer:

Photo 1: x=5 y=-2

Photo 2: x=11/5 y=4

Step-by-step explanation:

Photo 1-

2x + 3y = 4

              x = 2 − 3/2y

              y = 4/3 - 2/3x

2x + 3y = 4

              x = 2 - 3/2y

              y = 4/3 - 2/3x

Photo 2-

5x + 3y = 23

              x = 2 − 3/2y

              y = 4/3 − 2/3x

3y = 15x - 21

              x = y/5 + 7/5

              y = 5x − 7

Answer:

Step-by-step explanation:

A: +2

B: +2

C: -25

D: x3

Answer:

X = -9.1

Step-by-step explanation:

Add 9.1 and -2.4 together to get

x + 6.7 = -2.4

subtract 6.7 from both sides to get

x = -9.1

Answer:

a) Time left = [45 - (3j + 5s)] minutes

b) 17 minutes

Step-by-step explanation:

a) Using j for the number of laps she jogs and s for the number of times she stretches. Since Bailey has a total of 45 minutes to complete his exercise, then;

Time left = [45 - (3j + 5s)] minutes

If she jogs 6 laps and stretches 2 times , then;

Time left = [45 - (3j + 5s)]

b) Where j = 6 and s = 2,

Time left = 45 - (3(6) + 5(2))

              = 45 - (18 + 10)

              = 45 - 28

              = 17

Amount of time Bailey has left is 17 minutes.

Answer:

[tex]h(f(x)) = 18x -22[/tex]

Step-by-step explanation:

Given

f (x) = [tex](3x-5)^3[/tex]

[tex]h(x) =2\sqrt[3]{3x} + 8[/tex]

We are to find the composite function [tex]h(f(x))[/tex]

[tex]h(f(x))[/tex][tex]= h ((3x-5)^3)[/tex]

To get [tex]h ((3x-5)^3)[/tex], we will substitute x as (3x-5)³ in h(x)as shown:

[tex]h(x) =2\sqrt[3]{3(3x-5)^3} + 8\\h(f(x)) =2(3(3x-5)+ 8\\h(f(x)) = 2(9x-15)+8\\h(f(x)) =18x-30+8\\h(f(x)) = 18x - 22[/tex]

Answer:

ur not dumb but i think its b

Step-by-step explanation:

Answer:

7.1 × 10 7

Step-by-step explanation:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 1010. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

Answer:  D)  [tex]7.1 \times 10^7[/tex]

Explanation:

Place the decimal point between the first two digits of the given number. Erase everything after the '1'. So we have 7.1

To get back to 71,000,000 we would need to move the decimal point 7 spaces to the right

So that's why [tex]7.1 \times 10^7 = 71,000,000[/tex]

If the exponent was -7, then we would move the decimal point 7 spaces to the left.

Answer:

27 inces will be the answer

Step-by-step explanation:

Answer:

It is a Horizontal line at the mark y= 15 on the graph. It does not cross the X-axis as it is a horizontal line above the origin.

Step-by-step explanation:

Answer:

66/80 = 33/40

Step-by-step explanation:

I think this is right sorry if its not :)

Answer: I think it's D.

Step-by-step explanation:

I'm on the same thing and my best answer is Both functions are increasing, but function g increases at a faster average rate.

Both functions are increasing, but function g increases at a faster average rate.

x         f(x)

-2        -46

-1         -22

0         -10

1           -4

2          -1

If the slope of a function is continuously increasing or constant in an interval, the function is known as an increasing function.

Let us assume [tex]f(x)=ab^x+c[/tex]

at x=0, f(0)=-10

So, [tex]-10=a+c[/tex]

Similarly, by satisfying the above table in the f(x)

[tex]f(x)=-\frac{33}{5} (\frac{1}{11} )^x-\frac{17}{5}[/tex]

[tex]f'(x) > 0[/tex]

So we can say that f(x) is an increasing function.

[tex]g(x)=-18(\frac{1}{3} )^x+2[/tex]

[tex]g'(x)=-18(\frac{1}{3} )^xln(\frac{1}{3} )[/tex]

[tex]ln\frac{1}{3} < 0[/tex]

So, [tex]g'(x) > 0[/tex]

So, g(x) is an increasing function.

For any x∈f(x) and  x∈g(x) [tex]g'(x) > f'(x)[/tex]

So, g increases at a faster average rate

Thus,  Both functions are increasing, but function g increases at a faster average rate.

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The value of the function f(g(2))  is: f(g(2)) = -12

Here,

To find the value of f(g(2)),

we first need to find the value of g(2), and then use that result as the input for the function f.

Given:

f(x) = 2x - 4

g(x) = -5x + 6

Step 1: Find g(2)

g(2) = -5(2) + 6

g(2) = -10 + 6

g(2) = -4

Step 2: Use the result g(2) as the input for f(x)

f(g(2)) = f(-4)

f(x) = 2x - 4

f(-4) = 2(-4) - 4

f(-4) = -8 - 4

f(-4) = -12

Therefore, f(g(2)) = -12.

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Answer:

E = 16 ≤ x ≤ 23

Step-by-step explanation:

Number of eggs laid per week = between 18 and 25

Let x = exact number of eggs laid

Using inequality :

18 ≤ x ≤ 25

Number of eggs Pat eats = 2

18 - 2 ≤ x ≤ 25 - 2

Eggs left after pat eats 2 of the eggs :

16 ≤ x ≤ 23

Hence,

Eggs eaten by pat's dogs :

E = 16 ≤ x ≤ 23

The ratio equivalent to 4:3 is 12:9

Given:

Ratio = 4:3

To Find:

The ratio equivalent to 4:3

The given number which is in ratio is its simplest form.

Therefore in order to make it expanded form,First convert the given ratio into the fraction for its Multiplication.

Step 1: Convert to fraction

4:3 = 4/3

Step 2: Multiple the numerator and denominator of fraction by 3

4/3×3/3 = 12/9

Step 3: Convert the fraction into a ratio

12/9 = 12:9

Hence,the ratio equivalent to 4:3 is 12:9.

Option C. is correct

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Answer:

x=24

Step-by-step explanation:

you reduce the numbers making it 1/7 multiplied by 7x = 24, x will end up being 24

Answer:

-33/56

Step-by-step explanation:

suppose: A,B are the 2 angles of a triangle

we have: A = arcsin[tex]\frac{-4}{5}[/tex]

               B = arctan [tex]\frac{5}{12}[/tex]

=> sin A = [tex]\frac{-4}{5}[/tex] => cos A = [tex]\sqrt{1-\frac{(-4)^{2} }{5^{2} } } =\frac{3}{5}[/tex] (because A is in quadrant IV)

    tan B = [tex]\frac{5}{12}[/tex]

have:

[tex]1+ cot^{2}B=\frac{1}{sin^{2}B } => 1+\frac{1}{tan^{2} B}=\frac{1}{sin^{2}B } \\=> 1+\frac{1}{\frac{5^{2} }{12^{2} } } =\frac{1}{sin^{2}B }\\ => sin^{2}B=\frac{25}{169}[/tex]

because B is in quadrant III => [tex]sin B=-\sqrt{\frac{25}{169} }=\frac{-5}{13}=>cosB=-\sqrt{1-\frac{5^{2} }{13^{2} } }=\frac{-12}{13}[/tex]

tan(arcsin(-4/5)+arctan(5/12)) = tan( A + B)

but A,B are the 2 angles of a triangle => tan(A + B) = [tex]\frac{sin(A+B)}{cos(A+B)}[/tex]

have: sin(A+B) = sinA.cosB + cosA.sinB = [tex]\frac{-4}{5}.\frac{-12}{13} +\frac{3}{5}.\frac{-5}{13}=\frac{33}{65}[/tex]

cos(A + B) = cosA.cosB - sinA.sinB =[tex]\frac{3}{5}.\frac{-12}{13}-\frac{-4}{5}.\frac{-5}{13}=\frac{-56}{65}[/tex]

=> tan(A + B) = [tex]\frac{33}{65}:\frac{-56}{65}=\frac{-33}{56}[/tex]

Answer:

pie/6

Explaniation:

just took the test on k12

Answer:

pretty sure commutative property lol

Step-by-step explanation:

Answer:

y = a ÷ (πx)

Step-by-step explanation:

An equivalent equation solved for y is:

y = a/πx

An equation is a pair of algebraic equations with the equal sign (=) in the middle and the same value.

The formula a = xy, where x and y are the halved lengths of the ellipse's biggest and smallest diameters, may be used to calculate the area, a, of an ellipse.

Starting from the formula a = πxy, we can rearrange it to solve for y:

a = πxy

Dividing both sides by πx, we get:

a/πx = y

y = a/πx

Therefore, an equivalent equation solved for y is:

y = a/πx.

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Answer:

lol thanks for the points

Step-by-step explanation:

Answer:

what does that mean

I've got free points...:D

Answer:

y = -2x + 52,672

Step-by-step explanation:

Slope intercept form is the same as y intercept form: y = mx + b.

The m is the slope and the b is the y intercept.

Answer:

look in step by step

Step-by-step explanation:

12, 15, 18, 21, 24, 27, 30, 33, etc.

you are increasing by 3

18, 24, 30, 36, 42, 48, 54, 60, 66, 72

you are increasing by 6

5, 9, 13, 17, 21, 25, 29, 33, 37

you are increasing by 4

32, 16, 8...    4, 2, 1

you are decreasing by half

Answer:

A, 12,15    B, 15,21    C, 5,17    D, 32,16

Step-by-step explanation:

for A the rule is count by 3s

for B the rule is add 3 but skip every 2nd number

for C the rule is add is add 4

for D the rule is divide 2

hope this helps :)

- by chance may I get brainliest

Answer:

45 lessons

Step-by-step explanation:

Here, we want to know the number of lessons that both of them would have completed when they earn pizza and cookies at the same time

From the question, we are told that they earn cookies and pizza when they complete 9 and 15 lessons respectively.

So to know the number of lessons completed, we need to find the lowest common multiple of the number of cookies and the numbers of pizza

That will be lowest common multiple of 9 and 15

This is 45

Answer:

negative

Step-by-step explanation:

Answer:

6y-2y=3y+2

4y=3y+2

4y-3y=2

1y=2

y=2

Answer:

Step-by-step explanation:

given data

let the number of year be x

le the total cost b y

for the older car

cost of repair $1200

cost of gas  $2,000.00  per year

the cost for using the old car is

y=1200+2000x-----------1

for the new car

cost of $4500

cost of gas  $1,500.00 per year

y=4500+1500x-----------2

equating 1 and 2 we have

1200+2000x=4500+1500x

solving for x

1200-4500=1500x-2000x

-3300=-500x

x=3300/500

x=6.6

The number of years is 6 years 6 months

Answer:

here's an example to help you out man Let n = how much each new member must pay each month.

$160 - $28 = $132

n = $132 ÷ 12 months in a year

n = $11

You can also look at it this way:

n = (160 - 28)/12