Answer:
Step-by-step explanation:
3.4x - 2y
Putting values of x and y in the equation
3.4(1) - 2(-2)
= 3.4 + 4
= 7.4
Which expression is equivalent to –4(5x – 9) + 6(2x + 5)?
A.
–8x – 4
B.
–8x + 66
C.
32x – 4
D.
32x + 66
Answer:
B
(-20x + 36)+(12x+30)
-8x+66
The frequency,f kilohertz of a radio wave is inversely proportional to its wavelength, Ym. The frequency of a radio wave that has a wavelength of 3000m is 100 kHz. Find (i) The frequency of a radio wave that has a length of 500m (ii) The wavelength of a radio wave that has a frequency of 800kHz
Step-by-step explanation:
The frequency of a radio wave that has a wavelength of 3000m is 100 kHz
(a) Wavelength = 500 m
We know that,
[tex]f=\dfrac{c}{\lambda}\\\\f=\dfrac{3\times 10^8}{500}\\\\f=600\ kHz[/tex]
(b) Frequency, f = 800 kHz
[tex]\lambda=\dfrac{c}{f}\\\\\lambda=\dfrac{3\times 10^8}{800\times 10^3}\\\\\lambda=375\ m[/tex]
Hence, this is the required solution.
Doug is in line at the store. He has three items that cost $4.50, $3.05, and $1.50. Explain how Doug can add the cost of the items mentally before he pays for them.
Answer:
He can add through calculater or by doing addition in his mind
Can the sides of a triangle have lengths of 3, 8, and 3
Explain??
Answer:
no
Step-by-step explanation:
the triangle rule is the sum of any two sides of a triangle MUST be larger than the third, in this case 3+8 > 3, but 3+3 < 8 so it cannot be a triangle
Answer:
An isosceles triangle has two side lengths that are the same and one side length that is different. Soo... basically to sum it up in a word, yep.
Step-by-step explanation:
if you are graphing and you are at -1 and then you move did you subtract or add
Answer:
It depends on which way you want to move.
Step-by-step explanation:
which of the following lengths cannot be the lengths of a triangle? 4,6,9 a.) 3,4,2 b.) 2,2,3 c.) 1,1,2 d.)
Answer:
D. 1, 1, 2
Step-by-step explanation:
A triangles sides have to have the two smallest side's sum add up to be greater than the largest number. In D, 1+1 = 2, and 2 is the largest number, since 2 is not greater than 2, It cannot be a triangle.
A population of mutant Venus fly trap plants are taking over an island in the South Pacific, capturing everything from insects to small rodents
The question is incomplete. The complete question is :
A population of mutant Venus fly trap plants are taking over an island in the South Pacific, capturing everything from insects to small rodents. When they were first discovered they covered 4 square kilometers. As the population grows, the plants spread and cover more land. Use the table to write an equation.
Solution :
It is given that:
Venus fly trap plant is capturing everything on its way from small insects to other small rodents.
When they were first discovered, it covered an area of 4 square kilometers. But as more population grew and as years passed by, they spread over large land and covered more land.
Now from the table, it is seen that :
It covered 4 km square when discovered.
Then it covered 6.68 km square in the first year.
It covered 11.16 km square in the second year.
It covered 18.63 km square in the third year.
It covered 31.11 km square in the fourth year.
Therefore the equation which represents the growth is given by :
[tex]$y=4(1.67)^x$[/tex]
WILL GIVE BRAINLIEST!!
The Browns plan to fly to their vacation spot and then drive
through the mountains. They arranged to rent a sedan for
$37.45 per day with no charge for mileage.
a. What will it cost the Browns to rent the car for 10 days if
they spend $78.00 for gasoline?
b. What will it cost per mile if they drive 590 miles?
Answer:
A
Step-by-step explanation:
because there's no charge for miles
Find the value of z in rhombus ABCD.
A developer wants to divide an 84 acre parcel of land into lots in the ratio 6:2:4. How many acres are each land division. WILL AWARD BRAINLIEST.
Answer:
42 acres, 14 acres, 28 acres
Find the distance between the points (-2,-10) and (-9,-5) on a coordinate plane.
if you want 10 points answer this its easy
Answer:
1; 3; 9; 27, 81
-15; -8; -1; 6; 13
1/2; 1/4; 1/8; 1/16; 1/32
Step-by-step explanation:
Hope This Helps!
Thanks For the 5 points ; )
.Find -23+57 and 57+-23
PLZ ANSWER WITH FULL EXPLANATION
Answer:-23+57=34 and 57 + -23 =34
|
Step-by-step explanation: −60−50−40−30−20−10 0 10 20 30 40 50 60 70 80
regardless of the way you put it the positive is bigger so that means the you subtract 57 - 23 each time .
Some one please help me work out 1-2
10 Please! HELP! very easy! will give brainliest!
What is 20% of 0.75 ?
If you make the 20% into a decimal which is 0.20 and multiply it with .75 the answer is :
0.15
Answer:
hhihiihhiihihihhhi
Step-by-step explanation:
Will mark brainliest if done within 20 minutes of this being posted! NO LINKS NO FILES. Solve the radical equations and show your work, check your solutions too.
Step-by-step explanation:
5√x+3 = -20
÷5. : √x+3 = -4
square: x+3 = 16
-3: x = 13
√x+18 -2 = x -4
+2 : √x+18 = x -2
square: x+18 = x^2 - 4x +4
-18: x = x^2 -4x -14
-x : 0 = x^2 -5x - 14
foil: (x- 7) (x+2) = 0
x = 7, -2
What is the length of the hypotenuse of the triangle?
Marco's family is renting a cabin by the lake. The cost is $40 per day plus a one-time cleaning fee of $60. How many whole days can the family stay, if they have budgeted a maximum of $275 for the cabin? What is the variable for this situation?
Answer:
Step-by-step explanation:
Cost per day = 40
Cleaning fee = 60
Budget = 275
Total cost for one day = 100
The family can stay two whole days
The number of points in the first five games of the basketball season are listed below. What is the mean number of points scored? GAME 1 GAME 2 GAME 3 GAME 4 GAME 5 38 29 16 42 33
Answer: 29
Step-by-step explanation:
Which ordered pair is a solution to the system of equations below?
y = -2x – 1
y = 3x – 26
Help ASAP I’ll mark as brainlister
Answer:
196
Step-by-step explanation:
diameter is 14. also side of square. so 14 x 14 is answer 14 x 14 is 196.
Can someone please help me on this I beg you please
Answer:
b
Step-by-step explanation:
b
at a pizza shop you can choose thick or thin crust red or white sauce and toppings a pepperoni and cheese or vegetarian. create a tree diagram to display the same space
Answer:
Total 2*2*3 = 12 outcomes
------------------------------------------------------------------------
> thick, white, pepperoni
White > > thick, white, cheese
> thick, white, vegetarian
Thick > >
> thick, red, pepperoni
Red > > thick, red, cheese
> thick, red, vegetarian
------------------------------------------------------------------------
> thin, white, pepperoni
White > > thin, white, cheese
> thin, white, vegetarian
Thin > >
> thin, red, pepperoni
Red > > thin, red, cheese
> thin, red, vegetarian
A circle has a radius of 8 centimeters. The measure of the arc of the
shaded region is 72º. Which is closest to the area of the shaded section
Answer:
92
Step-by-step explanation:
What shape is figure b?
Figure a is a half sphere and figure b is a cylinder.
cylinder
sphere
half sphere
cone
The solution is, Figure a is a half sphere and figure b is a cylinder.
What is shape?In geometry, a shape can be defined as the form of an object or its outline, outer boundary or outer surface. Everything we see in the world around us has a shape.
here, we have,
from the given figure, we have,
the given shape has two parts,
the upper half is a half sphere.
Hemisphere includes the prefix hemi-, meaning "half". The northern and southern hemispheres are divided by the equator, the circle halfway between Earth's two poles. The eastern and western hemispheres aren't divided so exactly, since there are no poles in the Earth's east-west dimension.
and, the part b is a cylinder.
A cylinder is a three-dimensional shape consisting of two parallel circular bases, joined by a curved surface. The center of the circular bases overlaps each other to form a right cylinder.
Hence, The solution is, Figure a is a half sphere and figure b is a cylinder.
learn more on shape:
https://brainly.com/question/7646735
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Eric's cell phone service costs $40.00 a month for unlimited calls. He also pays $0.02 for each text message he sends Which equation represents the total costin dollars, for a month when Eric sends text messages?
Answer:
the answer is d
Need some help please, I'm super stuck on this. :/
Slope is written as a ratio of the vertical change (run) to the horizontal change (rise) between any two points on a line.
Answer:
Step-by-step explanation:
Yeah the equation is change in y over change in x; change in is represented with the delta sign, so y2-y1/x2-x1
helpppppppppppppppp pleaseeeeeeee
Answer:
20.25 ft
Step-by-step explanation:
9/2 = 4.5
4.5*4.5 = 20.25