Answer:
5
Step-by-step explanation:
2.63x5 = 15.78
If x=−1 and y=−3, then 5(x2−7+y)=
Answer:
-60
Step-by-step explanation:
5(-1 times 2 -7 -3) = 60
The value of [tex]5(x^2-7+y)[/tex] at [tex]x=-1,y=-3[/tex] is [tex]-45[/tex].
Important information:
The given expression is [tex]5(x^2-7+y)[/tex].The given values are [tex]x=-1,y=-3[/tex].Value of expression:Substitute [tex]x=-1,y=-3[/tex] in the given expression.
[tex]5((-1)^2-7+(-3))=5(1-7-3)[/tex]
[tex]5((-1)^2-7+(-3))=5(-9)[/tex]
[tex]5((-1)^2-7+(-3))=-45[/tex]
Therefore, the value of [tex]5(x^2-7+y)[/tex] at [tex]x=-1,y=-3[/tex] is [tex]-45[/tex].
Find out more about 'Value of expression' here:
https://brainly.com/question/556937
someone answer these for me-
Answer:
First question is D, (2/3)x+7
Second is A, m = (-1/3)
Step-by-step explanation:
parallel lines have the same slope. m=slope.
perpendicular lines are opposite sign reciprocals. slope is 3, perpindicular slope is (-1/3)
A mouse traveled a total distance of StartFraction 3 Over 24 EndFraction of a mile in a maze over the past 3 hours. The mouse traveled the same distance each hour. To determine the distance that the mouse traveled each hour, Matt performed the calculations below.
Answer:
Step-by-step explanation:
Using the formula for calculating speed;
Speed = Distance/Time
Given
Speed = 3/24 miles per 3 hours
Required
Distance travelled in an hour
3/24 miles = 3 hours
x = 1 hour
Cross multiply;
3 * x = 3/24 * 1
3x = 3/24
Cross multiply;
3x * 24 = 3
72x = 3
x = 3/72
x = 1/24
Hence the distance travelled each hour is 1/24 miles
Answer:
c
Step-by-step explanation
make it simple
Please please please help me with this !!!!!!
Answer:
Measure of angle T is 67.5 and measure of angle V is 22.5
Step-by-step explanation:
Solve for x
All the angles in a triangle equal 180
So,
3x + x +90 is 180.
Subtract 90 from both sides
3x+x = 90
Add like terms
4x = 90
Divide by 4 to solve for x
x = 22.5
Now substitute 22.5 in for 3x and x
Measure of angle T is 3(22.5) = 67.5 and measure of angle V is 22.5
Haley brought 4 boxes of candy canes at the santa store if each box of candy canes cost $2.65 and she paid with a twenty dollar bill how much change should get back
Answer: $9.04
Step-by-step explanation:
one box is $2.65 and $2.65x4=$10.09 and if there is a $20.00 then $20.00-$10.09=$9.04. :P
Is the following relation a function?
Relation:
X Y
-4 2
-2 1
0 0
1 2
The domain:
{-2,-4, 0, 1 }
The range:
{ 0, 1, 2 }
The bake sale sold pies for $5.99 each and cakes for $9.99 each. The total number of pies and cakes sold was 25 for $189.75. How many pies were sold? How many cakes were sold?
Answer:
15 pies sold and 10 cakes sold.
Step-by-step explanation:
Let p be the number of pies sold. So, the number of cakes sold is 25-p.
5.99p + 9.99(25-p) = 189.75
5.99p + 249.75 - 9.99p = 189.75
4p = 60
p = 15
25 - p = 10
5. a) Determine the total surface area of
this tent, including the floor, in order to
estimate the amount of canvas needed
to construct it.
b) What is the volume of the tent?
13m
22 mm
13.5 m
3 m
I
4 m
4 m
Unit 6
Step-by-step explanation:
Radius of the conical part = radius of cylindrical part r=
2
3
m
Slant height of the cone l=2.8 m
Height of the cylinder, h=2.1 m
Canvas needed to make the tent = Curved surface area of the conical part + curved surface area of the cylindrical part.
Curved surface area of conical part = πrl=
7
22
×
2
3
×2.8=13.2
Curved surface area of cylindrical part =2πrh=2×
7
22
×
2
3
×2.1=19.8
Total surface area = Curved surface area of conical part + Curved surface area of cylindrical part
=13.2+19.8=33 m
2
Cost of 1 m
2
canvas = Rs. 500
Cost of 33 m
2
canvas =33×500=16500
Therefore, it will cost Rs. 16500 for making such a tent.
yo can you help me with this
Ahoy there, matey! Our pirate ship had 5/6 of a treasure chest full of gold. Then we plundered an enemy ship and took their 3/8 of a treasure chest full of gold. How many treasure chests full of gold do we have now?
Answer:
1 5/24
Step-by-step explanation:
5/6+3/8
find common denominator: 24
5/6=20/24 3/8=9/24
add:
20/24+9/24=29/24
simplify:
29/24=1 5/24
hopefully this helps :)
Answer:
[tex]\frac{11}{24}[/tex]
Step-by-step explanation:
A man has 20.24$. He bought a thing for 4.49$. He also bought another thing for 3.99$. Will the money be enough to buy another item that costs 9.99$. If yes, how much money will remain?
Answer:
Yes: $1.77
Step-by-step explanation:
20.24 - 4.49 = 15.75
15.75 - 3.99 = 11.76
Yes, there will be enough for the 9.99 thing
11.76 - 9.99 = 1.77
The man will have 1.77 at the end.
I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!
what's the difference between 5 and
[tex]2 \sqrt{5} [/tex]
the difference between these two are:1. 5 is a rational number but 2√5 is an irrational number.
Which pair of operations are not inverses?
a. Taking the square root of a number and squaring
b. Addition and subtraction
c. Multiplication and division
d. Squaring and division
jason sees that 2 out of every 5 cars that passes by his house has the windshield wipers on. What is the probability that that of the next 4 cars that pass his house, 2 will have their windshield wipers on?
You buy five books that are equal in
price and a DVD for $8. Your total
comes to $26.50. Write an equation
that would help you determine the cost
of one book.
Help!
Answer:
5x+8=26.50
Step-by-step explanation:
Because the books are equal in price, we can use x to represent the price of the books and 5 to represent the amount, so it would be written as 5x. Then we add 8 because that's the price of the one DVD. It tells the total is 26.50, so the full equation written would be 5x+8=26.50
10(y+3)-4y please help
Answer:6y+30
Step-by-step explanation:
simplify the expression :)<3
Answer:
6y + 30
Explanation:
10(y + 3) - 4y
Expand 10(y + 3): 10y + 30
10y + 30 - 4y
Simplify
= 6y + 30
- PNW
0.5 (n-4) -3 = 3 - (2n+3)
Answer:
n = 2
Step-by-step explanation:
0.5n - 2 - 3 = 3 - 2n -3
0.5n + 2n = 2 + 3 + 3 -3
2.5n = 5
n = 2
Answer:
Step-by-step explanation:
0.5n - 2 - 3 = 3 - 2n - 3
Solving like terms
0.5n - 5 = - 2n
-5 = - 2n - 0.5n
-5 = - 2.5n
-5/-2.5 = n
2 = n
I need help! 6th grade math! ASAP! Only 1 and 3. 10 Points each! WILL GIVE BRAINLYEST!!!
Answer:
Where is the pic?
I will answer in the comments or edit my answer once u post the pic!
:D
An expert diver is looking for a particular species of fish along the coastline. He dives 22 feet below the surface of the ocean. Then he dives down 7 feet and down another 4 feet before he finds the species of fish he is looking for. What was the depth at which the diver finds the fish
Answer:
-55
Step-by-step explanation:
BBBBBBBVVVVVBBBBBBBBBBVV
Answer:
A. 8(4+2)
Step-by-step explanation:
have a nice day
Addison is going to invest in an account paying an interest rate of 3.1% compounded continuously. How much would Addison need to invest, to the nearest dollar, for the value of the account to reach $910 in 18 years?
Answer: $521
Step-by-step explanation:
help pls ill mark u brainliest :(
Answer:
edfghjkoijuhgyfdsdfghjkl
Step-by-step explanation:
Need help on this, please
Answer: 30 something?
Step-by-step explanation:
can someone help me with this?
Answer:
1 is C and 2 is B
Step-by-step explanation:
I need help with this question! Will mark brainliest :)
Answer:
y=3x-2
Step-by-step explanation:
you find the 3 (the slope) by seeing how much the y value grows
the -2 is the value of the y-intercept (more clear on a graph) but it's when the point is (0,__) so you subtract 3 from 1.
Answer:
The answer is the third option, y=3x-2
Explanation:
I'm horrible at explaining, but basically the y-axis is increasing by 3's so it's not negative, and to find the y-axis, we simply put a 0 ontop of the 1 in the x-axis, and across that we get -2 because the y-axis is increasing by 3's.
So sorry for my messy explanation, but I hope it helps :)
I need help ASAP please
Answer:
g
Step-by-step explanation:
a car was purchased last year for $28,500. now its value is $25,510. at what rate is the car's value depreciating each year?
Answer:
The car's value is depreciating by $2,990 per year.
Step-by-step explanation:
To solve this problem, we just need to subtract the cars value this year, or $25,510, from the car value of last year, or $28,500.
28,500 - 25,510 = $2,990
Since the car value was $2,990 more just last year, the car's value is depreciating by $2,990 per year.
Hope this helps! :D
What is the measure in degrees for the central angle of a circle whose radius is 8 cm and intercepted arc length is 5.6 cm?
Answer:
0.7
Step-by-step explanation:
–2.5 + (–3.5)
Which number line shows the sum?
A.
B.
C.
D.
Answer:
The correct answer is C.
Step-by-step explanation:
Because –2.5 + (–3.5) = -6, it means that the red line goes from -6 to -3 1/2 to 0. so that gives us Answer choice C
it costs $42 for 7 staplers. what is the unit rate for the stapler?
Answer:
The answer is 6
Step-by-step explanation:
42 divided by 7=6
What is the area of this triangle?