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2 years ago

PLS HELP FOR BRAINLIST...

Mathematics

1 answer:

Ahat [919]2 years ago

8 0

Answer is C ig I’m sowwy if I’m wrong

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Andy is one fourth as old as his grandfather who is 76 write an equation to determine whether it is 19 or 22 years old.

valentina_108 [34]

76/4=19
Divide 74 by 4 to get 19

6 0

2 years ago

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Mr.loretti spends $4.83 on pens and notebooks. How many of each item does he buy? Explain

Oksana_A [137]

How much does the pen or notebook charge

8 0

3 years ago

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Solve the below system of equations using the best method. Please describe the method used [substitution, graphing, elimination,

lakkis [162]

Since both equations are solved for y, use substitution.

y = 2x + 3
y = -x - 5

2x + 3 = -x - 5

3x + 3 = -5

3x = -8

x = -8/3

Now substitute -8/3 in for x in the original first equation, and solve for y.

y = 2x + 3

y = 2(-8/3) + 3

y = -16/3 + 9/3

y = -7/3

Solution: (-8/3, -7/3)

4 0

2 years ago

Find the length of the radius of a circle with a center at –7 2i and a point on the circle at 33 11i.

Semenov [28]

The length of the radius of a circle exists 41 units.

<h3>How to estimate the length of the radius of a circle?</h3>

Given: The center exists at -7+2i and a point in the circle at 33+11i.

The radius of the circle exists given by the following formula;

The radius of the circle $=\sqrt{x^{2}+y^{2}}$

The center exists at -7 + 2i and a point in the circle at 33 + 11i.

$$&x(33-(-7)), y(2 \mathrm{i}-11 \mathrm{i}) \\$

simplifying the equation, we get

$$&\mathrm{x}(33+7), \mathrm{y}(-9 \mathrm{i}) \\$

$$&\mathrm{x}(40), \mathrm{y}(-9(-1)) \\$

$$&\mathrm{x}(33+7), \mathrm{y}(9)$

The center of the circle exists at $$&\mathrm{x}(33+7), \mathrm{y}(9)$ .

The length of the radius of a circle exists,

Radius $$}=\sqrt{x^{2}+y^{2}} \\$

substituting the values of x and y, we get

Radius $$}=\sqrt{40^{2}+9^{2}} \\$

Radius $$}=\sqrt{1600+81} \\$

Radius $$=\sqrt{1681} \\$

Radius = 41 unit

Therefore, the length of the radius of a circle exists 41 unit.

To learn more about length of the radius of a circle refer to:

brainly.com/question/10443107

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6 0

1 year ago

Solve the following system of equations. x − 2y = 5 −3x + 2y = 7 A. x = 3, y = −1 B. x = 11, C. x = −6, D. x = 3, y = 1

Svetllana [295]

x - 2y = 5
-3x + 2y = 7
-----------------add
-2x = 12
x = 12/-2
x = -6

-3x + 2y = 7
-3(-6) + 2y = 7
18 + 2y = 7
2y = 7 - 18
2y = - 11
y = -11/2

solution is : (-6,-11/2)...x = -6 and y = -11/2

8 0

2 years ago

Read 2 more answers