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REY [17]
3 years ago
12

I need help on my math i wasn't there that day my class did it

Mathematics
2 answers:
wlad13 [49]3 years ago
7 0

Answer:

(a-4)x-b+9

Step-by-step explanation:

hope this helps

Nimfa-mama [501]3 years ago
6 0
I’m sorry, why weren’t you at school sonny boy
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When making a book cover, Anwar adds an additional 20 square inches to the surface area to allow for overlap. How many square in
e-lub [12.9K]

Answer:

234 square inches

Step-by-step explanation:

We are given that

Length of book, l=11 in

Width of book, w=8 in

Height of book, h=1in

Additional area required to overlap=20 square inches

We have to find how many square inches of paper to make  cover of one book.

We know that surface area of cuboid

S=2(lb+bh+hl)

Using the formula

Surface area of book

S=2(11\times 8+8\times 1+1\times 11)

S=214 in^2

Total paper used to make cover of one book

=Surface area of book +additional surface area

=214+20

=234in^2

Hence, Anwar will use paper to make cover of one book=234 square inches

3 0
3 years ago
Find the surface area of the pyramid. 8 yd 10 yd 10 yd
MrRa [10]

Answer:

277.15 yds

Step-by-step explanation:

8 0
3 years ago
Need help asap!!!! will mark brainliest if correct
ehidna [41]
The volume of a rectangular prism is length x width x height.
You will have to multiply 10.4mm by 5mm by 8mm and the product of that is 416 mm
5 0
3 years ago
Read 2 more answers
3x
mel-nik [20]

Answer:

x = 25°

Step-by-step explanation:

3x + 2x + x + 30° = 180°

6x + 30° = 180°

6x = 150°

x =25°

=> 3x = 25 * 3 = 75°

=> 2x = 25 * 2 = 50°

=> x + 30° = 25° + 30° = 55°

6 0
3 years ago
What is the center and radius of -10x = -121 - y2 - x2 -22y
OlgaM077 [116]

We need to find the center and the radius of

-10x\: =\: -121\: -\: y^2\: -\: x^2\: -22y

The general circle equation is the following

(x-h)^2+(y-k)^2=r^2

where

(h,k) is the center and

r is the radius

1. rearrange the equation

(x^2-10x)+(y^2+22y+121)=0

2. Add 25 on both sides

(x^2-10x+25)+(y^2+22y+121)=25

3. Factor

(x-5)^2+(y+11)^2=5^2

Now we have an equation that is very similar to the circle equation, so let's compare them

Center -> (h,k) = (5,-11)

radius -> r = 5

8 0
1 year ago
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