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Delicious77 [7]
3 years ago
15

Hello I need some help with my last Question pls..

Mathematics
1 answer:
solniwko [45]3 years ago
7 0

Answer:

350

Step-by-step explanation:

The difference is 35, she's spending 35 everyday

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Please help! Correct answer only, please! I need to finish this assignment this week. Given matrix A and B both have dimensions
Delicious77 [7]

Answer:

Option B is correct

Step-by-step explanation:

The multiply of matrix A by matrix B that is inverse of A, must result in an identity matrix that has form shown in option B

Hope this helps!

8 0
3 years ago
Which land forms are formed by wind deposition in the desert region?​
Elena L [17]

Answer:

Sand Dune Landforms

Sand dunes (both active and stabilized by vegetation) can be found along beaches, and in arid or semi-arid regions. Dunes are mounds of loose sand created by wind and are the most well known aeolian features

8 0
2 years ago
Read 2 more answers
HELPPPP PLEASE HELP ME WITH BASIC MATH I REALLY APPRECIATE IT ((WILL MARK AS BRAINLIEST))​
Yakvenalex [24]

Answer:

3) 522

4) 468

Step-by-step explanation:

hello!

3) in the question, it says the cross section is a square, and the area of PQRS is 81.

for the square, we know that the length and height have to be the same, so if the area is 81, then we know the sides are both 9 because 9*9 is 81 and they're the same numbers multiplied. (same height and length)

with the information that all 4 sides of the square is 9 and the other side is labeled 10, we can figure out the rest.

both squares : 81+81=162

both 10 by 9 sides: 90+90=180

both 10 by 9 sides (top and bottom): 90+90=180

total surface area=162+180+180=522

4) for this problem, we can see that the triangle is a right triangle.

to solve the area of the triangle, we can do (9*12)/2=108/2=54.

there are two sides with triangles, so we double 54 (54*2=108)

9 by 10 side: 90

10 by 12 side: 120

now for the last slide, theres no information on the length. the formula for the diagonal is

a^2+b^2=c^2

which is

9^2+12^2=81+144=255=15^2

with this, the area of the rectangular side gives us 10*15 which is 150.

adding it together, we get

108+90+120+150=468.

hope this helps!

7 0
2 years ago
The daily cost of producing x high performance wheels for racing is given by the following​ function, where no more than 100 whe
WINSTONCH [101]
So all you need to do if find the min of the function:

f(x)=0.04x^3-4x^2-176x
f'(x)=0.12x^2-8x-176
The only zero for this is x=84.105 <---first
Plug this into f(x) to get f(84.105)=-19300 <---second
4 0
3 years ago
8x(5+7). please answer will give 10 pts &amp; brainiest
Veseljchak [2.6K]

Answer:

96

Step-by-step explanation:

8x(5+7)

Parentheses first

8* (12)

Then multiply

96

8 0
3 years ago
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