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Maslowich
11 months ago
8

Given H = f(t) where H is the height in meters of an object and t is the time in

Mathematics
1 answer:
timama [110]11 months ago
4 0

Answer:

D

Step-by-step explanation:

Well, since t = time in air, we already know that it traveled 2 seconds.

H = height in meters, and H = 18

So, after 2 seconds the object is 18m in the air

So, option D

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The area of a square patch of grass is 25 square meters .how long is each side of the patch
77julia77 [94]
The area of a square with sides of length s is

A=s^2, and we are told A=25 so

s^2=25

s=√25

s=5m
5 0
3 years ago
Read 2 more answers
In art class, Arthur has created a triangle painting 1/5 of his painting is purple. He decided he wants to Paint 4/8 of the purp
babymother [125]

\frac{1}{10} part of the whole painting is gold colored.

<u>Solution:</u>

Given that , In art class, Arthur has created a triangle painting \frac{1}{5} of his painting is purple.  

He decided he wants to Paint \frac{4}{8} of the purple area gold  

We have to find what fraction of the whole painting will be painting?  

Now, \frac{1}{5} part of whole painting is purple

And, \frac{4}{8} part of the purple area is gold ⇒ \frac{4}{8} part of the \frac{1}{5} part of whole painting is gold

\text { Then, fraction of gold color }=\frac{4}{8} \times \frac{1}{5}=\frac{1}{2} \times \frac{1}{5}=\frac{1}{10}

Hence, \frac{1}{10} part of the whole painting is gold colored.

4 0
3 years ago
Match each description when z = 9 + 3i. 1. Real part of z 2. Imaginary part of z 3. Complex conjugate of z 4. 3i - z 5. z - 9 6.
sergey [27]
1)\quad \Re(9+3i)=9\qquad\text{F}\\\\&#10;2)\quad \Im(9+3i)=3\qquad\text{E}\\\\&#10;3)\quad \overline{(9+3i)}=9-3i\qquad\text{D}\\\\&#10;4)\quad 3i-(9+3i)=3i-9-3i=-9\qquad\text{A}\\\\&#10;5)\quad 9+3i-9=3i\qquad\text{B}\\\\&#10;6)\quad 9-(9+3i)=9-9-3i=-3i\qquad\text{C}\\\\
5 0
3 years ago
Evaluate when x = 2<br> -X2 + 5x - 7
Rufina [12.5K]

Answer:

Step-by-step explanation:

f(x)=x²-5x+7

f(2)=2²-5.2+7=4-10+7=11-10=1

f(-1)=(-1)²-5.(-1)+7=1+5+7=13

f(1/3)=(1/3)²-5(1/3)+7=1/9-5/3+7=49/9

∴, f(2)-f(-1)+f(1/3)

=1-13+49/9

=58/9-13

=-59/9

mark be brainlest plss

6 0
3 years ago
The fee for a service call from a plumber can be modeled with the function C(h)= 75 + 20h, where C is the total cost of the serv
Lynna [10]

Answer:

20 ; $135 ; service charge for 3 hours spent is $135

Step-by-step explanation:

Given that :

Service fee equation model :

C(h)= 75 + 20h

C = total cost of the service call

h = number of hours the plumber spends working on the problem

The charge per hour is the gradient or slope of the linear equation. From the equation, the slope is of the equation is related to bx from. The general form of a linear equation where b = gradient or slope(charge per hour) and x = number of hours

bx = 20h

b = 20

Charge per hour = 20

C(3) = 75 + 20(3)

75 + 60 = 135

This means that total service call charge for a plumber who spends three hours fixing a problem is $135

6 0
3 years ago
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