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anygoal [31]
2 years ago
6

Alright this time can somebody help? ​

Mathematics
2 answers:
Katena32 [7]2 years ago
8 0

Answer:

Surface area =

160 sq cm

Step-by-step explanation:

To find surface area, you find the area of all the faces and add them together. There are 4 faces (flat surfaces) The base is a triangle and the 3 sides are also triangles. The area of a triangle is:

A = 1/2 b•h

For the base,

A = 1/2•8•7

A = 28 sq cm

For the sides, we can do one calculation and times by 3 because they are all the same.

A = 1/2•8•11

= 44 sq cm

One face is 44, 3×44 is 132 for all three faces.

Surface area =

28 + 132

= 160 sq cm

Deffense [45]2 years ago
6 0

I'm pretty sure the answer is 232cm

11x8=88

88÷2=44

44x4=176

8x7= 56

176+56=232

Correct me if I'm wrong :)

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30 points<br> can somebody please help me<br> question below
Inessa05 [86]

Find the total number of dogs by adding each day:

Total dogs = 23

Percent of dogs: Divide the number of dogs by the total number of patients:

= 23 / 50 = 0.46 x 100 = 46%

Use the given formula to find the standard error:

Standard error = √(0.46*(1-0.46)/50) = 0.07

90%: Find Z value for 90% ( 1.645) multiply by SE:

1.645 x 0.07 = 0.115 = 0.12

Now add and subtract that value from the Percent from above:

46 + 12 = 58%

46-12 = 34%

Answer (34%, 58%)

95%: Find Z value for 95% ( 1.96) multiply by SE:

1.96 x 0.07 = 0.137 = 0.14

Now add and subtract that value from the Percent from above:

46 + 14 = 60%

46-14 = 32%

Answer (32%, 60%)

5 0
3 years ago
The sum of five consecutive multiples of 4 is 20.Find the smallest integer.
Aloiza [94]

Answer:

The smallest integer is -4.

Step-by-step explanation:

Let the smallest integer be x.

Since the integers are all multiples of 4, they are

=> x, x+4, x+8, x+12 and x+16

=> x + x+4 + x+8 + x+12 + x+16 = 20

=> 5x + 40 = 20

Subtract 40 from both sides of the equation

5x +40 - 40 = 20 - 40

5x = -20

Divide both sides by the coefficient of x(which is 5)

\frac{5x}{5} = \frac{-20}{5}

x = -4

∴ the smallest integer is -4.

Hope this helps!!!

6 0
2 years ago
Perform the division...please!​
____ [38]

Answer:

-7/3x + 3

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Please help me out please please y'all help please please ASAP please
Arada [10]

Answer:

AM=5 x=1    

 x=16 CM=86        

x=-7 AS = -37

Step-by-step explanation:

4 0
3 years ago
Use the quadratic formula to findntge roots of the equation 2X2-28X+98=0
JulijaS [17]
The answer to that equation is {7,7}
3 0
3 years ago
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