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1 year ago

You earn $35 for washing 7 cars. How much do you earn for washing 4 cars?

Mathematics

1 answer:

Gre4nikov [31]1 year ago

5 0

Answer:

The earning by washing four cars is $20

Step-by-step explanation:

You earn $35 for washing 7 cars.

The following steps can be used in order to determine the earning by washing four cars:

Step 1 - The unitary method can be used in order to determine the earning by washing four cars.

Step 2 - According to the given data, the earning by washing seven cars is $35.

Step 3 - So, the earning for washing four cars is given by:

4/7 x 35

Step 4 - Simplify the above expression.

140/7

= $20

So, the earning by washing four cars is $20.

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Angle A is circumscribed about circle O. What is the measure of angle O?

tensa zangetsu [6.8K]

Step-by-step explanation:

is Al Gore a circumscribed about six times the measure of angle is 180 degrees

3 0

2 years ago

Find the distance of a plane that travels at an average speed of 200mi/hr<br> for 8.5 hours

asambeis [7]

Answer:

1800 mi

Step-by-step explanation:

Recall that (distance) = (rate)(time).

Here, (distance) = (200 mi/hr)(8.5 hr) = 1800 mi

6 0

2 years ago

Which transformation have been preformed on a graph of f(x)=x2 to obtained the graph of g(x) =-3(x+1)2-4?

avanturin [10]

Horizontal shift because g(x)=f(x+1) 1 unit left

Vertical shift because g(x)=f(x+1)-4 4 units down

Reflected across x-axis because g(x)=-f(x)

Vertically stretched because g(x)=3(f(x))

Step-by-step explanation:

We need to identify which transformation have been preformed on a graph of f(x)=x2 to obtained the graph of g(x) =-3(x+1)2-4?

Rules for transformation:

Horizontal shift: depends on the value h

if g(x)=f(x+h) then: the graph is shifted left h units

if g(x)=f(x-h) then: the graph is shifted right h units

Vertical Shift: depends on the value k

if g(x)=f(x)+k then: the graph is shifted up k units

if g(x)=f(x)-k then: the graph is shifted down k units

Reflection:

if g(x)=-f(x) then graph is reflected at x-axis

if g(x)=f(-x) then graph is reflected at y-axis

Vertical Stretch:

if g(x)=c.f(x) then graph is vertically stretched.

In the given question:

f(x)= x^2

g(x)=-3(x+1)^2-4

Applying the above rules of transformation:

The graph is:

Horizontal shift because g(x)=f(x+1) 1 unit left

Vertical shift because g(x)=f(x+1)-4 4 units down

Reflected across x-axis because g(x)=-f(x)

Vertically stretched because g(x)=3(f(x))

Keywords: Transformations

Learn more about Transformations at:

#learnwithBrainly

7 0

3 years ago

Use the binomial expression (p+q)n

zvonat [6]

Answer:

{0.16807, 0.36015, 0.3087, 0.1323, 0.02835, 0.00243}

Step-by-step explanation:

The expansion of (p+q)^n for n = 5 is ...

(p+q)^5 = p^5 +5·p^4·q +10·p^3·q^2 +10·p^2·q^3 +5·p·q^4 +q^5

When the probability p=0.3 and q = 1-p = 0.7 the terms of this series correspond to the probabilities of 5, 4, 3, 2, 1, and 0 favorable outcomes out of 5 trials.

For example, p^5 = 0.3^5 = 0.00243 is the probability of 5 favorable outcomes in 5 trials where the probability of each favorable outcome is 0.3.

___

The attachment shows the calculation of these numbers using a graphing calculator. It lists them in reverse order of the expansion of (p+q)^5 shown above, so that they are the probabilities of 0–5 favorable outcomes in the order 0–5.

3 0

3 years ago

May someone please help I am struggling bad

SVETLANKA909090 [29]

Answer:

5 12 9

Step-by-step explanation:

3 0

2 years ago