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svet-max [94.6K]
3 years ago
15

I need help with this​

Mathematics
1 answer:
Oksi-84 [34.3K]3 years ago
7 0
It is option 3 trust
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The area of a square poster is 31 square inches. find the length of one side of the poster. Explain
kobusy [5.1K]

Answer:

5.57

Step-by-step explanation:

In order to find the are of a square you would use the equation <em>a²</em>. However, since you are finding the length of one side and its a square, you use the equation \sqrt{a}. The area of this square is 31 sq in., so you would replace a with 31. The equation then becomes \sqrt{31}<em>. </em>When out into a calculator, the answer is 5.567764... which rounded up to the nearest hundreth is 5.57.

5 0
3 years ago
100^a x 1000^b can be written in the form 10^w <br><br> Show that w = 2a + 3b
Elena L [17]
100^a \time 1000^b = 10^{2a} \times 10^{3b} = 10^{2a + 3b}

10^{w} = 10^{2a + 3b}

w = 2a + 3b \text { (shown)}
3 0
2 years ago
Each table in the cafeteria can seat 10 students.how many tables are needed to seat 40 students
Vitek1552 [10]
Hi there!

To solve this problem, we need to divide the total amount of tables by the amount of students:

40 / 10 = 4

So, we need 4 tables to seat 40 students. 

Hope this helps!
3 0
3 years ago
Read 2 more answers
Can someone please help quick !
Oxana [17]

Answer:

Area of a triangle is base times height divided by 2. The formula for finding the area of a parallelogram is easiest to just break it down into two triangles and 1 square/rectangle. Then just find the area of all then add them together to get the final area.

7 0
3 years ago
Need help with me question
Irina-Kira [14]

Answer:

x = -6       x=5

Step-by-step explanation:

x^2 +x -30 =0

Factor

What two numbers multiply to -30 and add to 1

6 * -5 = -30

6-5 =1

(x+6) (x-5) =0

Using the zero product property

x+6 =0    x-5=0

x+6-6=0-6    x-5+5=0+5

x = -6       x=5

8 0
3 years ago
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