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3 years ago

92 POINTS PLS HELP ASAP. I'LL MARK BRAINLIEST

Mathematics

2 answers:

neonofarm [45]3 years ago

6 0

Answer:

Step-by-step explanation:

Its easy

masya89 [10]3 years ago

4 0

Answer:

C is the most reasonable answer because to add the system of equations together, you must make sure that one of the terms (whether it be the x or y value) can cancel out.

Step-by-step explanation:

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The diameter of a circle has endpoints at (0,11) and (-6,-1). Write the equation of the circle in standard form.

Nata [24]

Answer:

(x - 3)^2 + (y - 6)^2 = 17

Step-by-step explanation:

The standard form of a circle's equation is (x-h)² + (y-k)² = r² where (h,k) is the center and r is the radius.

(x - 3)^2 + (y - 6)^2 = 17

8 0

3 years ago

What is the difference between whole numbers and real numbers ?

kirza4 [7]

Hello there! :)

Whole numbers are all positive numbers and zero.

Real numbers are negative numbers, fractions, positive numbers and zero.

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4 0

3 years ago

How do you simplify 5 plus the square root of 3 squared?<br><img src="https://tex.z-dn.net/?f=%285%20%2B%20%20%5Csqrt%7B3%7D%29%

blondinia [14]

Use identity -

(a+b)² = a²+b²+2ab

(5+√3)² = 5²+(√3)² + 2(5)(√3)

= 25 + 3 + 10√3

= 28 + 10√3

= 2(14+ 5√3)

7 0

4 years ago

Read 2 more answers

What is 45% of 36 feet

marta [7]

100% of 36 ft= 36 ft
50% of 36 ft= 18 ft
5% of 36 ft = 1.8 ft
50%-5% or 18-1.8 ft gives you 16.2 ft

4 0

3 years ago

Which expression can be used to find the surface area of the following square pyramid

andreyandreev [35.5K]

Answer:

$36+15+15+15+15$

Step-by-step explanation:

For the surface area we need to add up all the areas in the pyramid:

area of the base

area of the triangle sides (there are 4 triangles)

Area of the base:

the base is a square, and the area of a square is given by:

$a_{base}=l^2$

where $l$ is the length of the side: $l=6$ , thus:

$a_{base}=(6)^2\\a_{base}=36$

Area of the triangles:

one triangle has the area given by the formula:

$a_{triangle}=\frac{b*h}{2}$

where $b$ is the base of the triangle: $b=6$

and $h$ is the height of the triangle: $h=5$ , thus we have the following:

$a_{triangle}=\frac{6*5}{2} \\\\a_{triangle}=\frac{30}{2} \\\\a_{triangle}=15$

the expression that represents the surface area of the pyramid is:

$a_{base}+area_{triangle}+area_{triangle}+area_{triangle}+area_{triangle}$

substituting our values:

$36+15+15+15+15$

which is option B

7 0

3 years ago

Read 2 more answers