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3 years ago

Pls answer all the questions

Mathematics

1 answer:

Sladkaya [172]3 years ago

8 0

Answer:

1) 1/4× 60=60/4 is 15 prefer fish

2)30×40/100=1200/100 is 12/1 has school dinners

3)3/4×28=84/4 is 21% of the items are not pencils

4)40×7/10=280/10 is 28 percent of the players were not born in UK

5)80×69/100=5520/100 is 552/10

6)1/4×120=120/4 is 30percent

7)95/100×120=1140/10 is 114 houses

8)55/100

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Match the function with the graph.

Kobotan [32]

Answer:

d. y = 1/(x + 2) + 3

Step-by-step explanation:

From the given graph, the vertical asymptote at x = -2, so the denominator expression is (x + 2).

The horizontal asymptote at y = 3.

Therefore, the function y = 1/(x+2) + 3

Answer: d = 1/ (x + 2) + 3

Hope you will understand the concept.

Thank you.

3 0

4 years ago

Find f(1) if f(x)=2x^3+x^2-3x-1

luda_lava [24]

Answer:

The answer is -1

Step-by-step explanation:

f(x) = 2x³ + x² - 3x - 1

f(1) = 2(1)³ + (1)² - 3(1) - 1

f(1)= 2 + 1 - 3 - 1

f(1)=3-3-1

f(1)=0-1

f(1)= -1

Thus the answer is -1 ....

4 0

3 years ago

Read 2 more answers

Answer the following ratios <br><br> 55 paise to Rs 1<br> 500ml to 2 liters

AfilCa [17]

55:1

500:2

There ya go!

7 0

3 years ago

A rocket is launched from a tower what time will the rocket reach its max

Lena [83]

Answer:

Step-by-step explanation:

A science class designed a ball launcher and tested it by shooting a tennis ball up and off the top of a 15-story building. They determined that the motion of the ball could be described by the function: h(t) = -16t2 + 144t + 160, where ‘t’ represents the time the ball is in the air in seconds and h(t) represents the height, in feet, of the ball above the ground at time t.

a) Graph the function h(t) = -16t2 + 144t + 160 (see below)

b) What is the height of the building?

The height of the building is also the height of the tennis ball before it is launched into the air. This occurs when t=0 so substitute 0 for t and you get:

H(0) = -16(0)2 + 144(0) + 160

The height of the building is 160 feet.

c) At what time did the ball hit the ground?

The ball hits the ground when the height is 0. Therefore, we are looking for a solution to: -16t2 + 144t + 160 = 0

Use the quadratic formula or put this into a calculator. The solution is t=10 and -1, but only 10 makes sense. Therefore, the ball hits the ground at 10 seconds.

d) At what time did the ball reach its maximum height?

You can put this into the calculator or you can realize that the maximum height is also

− the vertex. The x-value (‘t’ in this case) is 2

−144

which is (2)(−16) = 4.5.

Therefore, the ball reached its maximum height at 4.5 seconds.

e) What is the maximum height of the ball?

We calculated the time of the maximum height (4.5 seconds). Therefore, substitute 4.5 into the function to find the maximum height.

-16(4.5)2 + 144(4.5) + 160

The maximum height is 484 feet.

5 0

3 years ago

It costs $50.00 to deliver 6 floral arrangements. It costs $80.00 to deliver 12 floral arrangements. What is the constant rate o

german

The constant rate for 1 floral arrangement is $5.00 and inital value is $20.00

Equation: f(z)=20+5z

Step-by-step explanation:

Given,

Delivery cost of 6 floral arrangements = $50.00

Delivery cost of 12 floral arrangements = $80.00

Let,

x be the constant rate for each floral arrangement.

y be the initial value.

According to given statement;

6x+y=50.00 Eqn 1

12x+y=80.00 Eqn 2

Subtracting Eqn 2 from Eqn 1

$(12x+y)-(6x+y)=80.00-50.00\\12x+y-6x-y=30.00\\6x=30.00$

Dividing both sides by 6

$\frac{6x}{6}=\frac{30.00}{6}\\x=5.00$

Putting in Eqn 1;

$6(5.00)+y=50.00\\30.00+y=50.00\\y=50.00-30.00\\y=20.00$

The constant rate for 1 floral arrangement is $5.00 and inital value is $20.00

Equation for the function;

Let z be the number of floral arrangements.

f(z) = initial fee + 5*Number of floral arrangements

f(z) = 20+5z

Keywords: function, subtraction

Learn more about functions at:

#LearnwithBrainly

8 0

4 years ago