3 years ago

Which point is on the circle centered at the origin with a radius of 5 units?

Mathematics

2 answers:

Ivenika [448]3 years ago

8 0

Answer:

Step-by-step explanation:

sqrt[(2 - 0)² + (sqrt(21) - 0)²]

sqrt(4 + 21)

sqrt(25)

ira [324]3 years ago

8 0

Answer:

Step-by-step explanation:

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$20 earns $0.80 in interest. What is the percent interest?

Anna007 [38]

Answer:

i think it would be .08%

Step-by-step explanation:

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3 years ago

Slope = four fifths ,y-intercept = -1

Nadya [2.5K]

Slope-intercept form:
y=mx+b

m=slope
b=y-intercept

Data:
m=4/5
b=-1

y=mx+b
y=(4/5)x-1

Answer: the equation of the line with slope=4/5, and y-intercept=-1 would be:
y=(4/5)x-1

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3 years ago

Write the name of a shape that when reflected in the x-axis , will remain identical

olga55 [171]

A circle is one shape that can be reflected
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2 years ago

Read 2 more answers

Find the point, M, that divides segment AB into a ratio of 3.1 if A is at (-4,-2) and B is at (4. -10).

Natasha_Volkova [10]

Answer:

The coordinates of M are (2,-8)

Step-by-step explanation:

The coordinates of the point that divides the line segment joining

$A(x_1,y_1)$ to $B(x_2,y_2)$ in the ratio m:n is given by:

$(\frac{mx_2+nx_1}{m+n},\frac{my_2+ny_1}{m+n})$

If A is at (-4,-2) and B is at (4. -10) and the ratio is 3:1.

Then

$(\frac{3(4)+1(-4)}{3+1},\frac{3(-10)+1(-2)}{3+1})$

$(\frac{8}{4},\frac{-32}{4})$

The coordinates of M are (2,-8)

7 0

3 years ago

Evaluate i^31 please help

Nadya [2.5K]

ANSWER

${i}^{31} = - i$

EXPLANATION

We want to evaluate

${i}^{31}$

Use indices to rewrite the expression as:

$= {i}^{30} \times i$

We know that

${i}^{2} = - 1$

So we rewrite the expression to obtain;

$= ({ {i}^{2}) }^{15} \times i$

This gives us;

$= {( - 1) }^{15} \times i$

This simplifies to

$= - 1 \times i$

$= - i$

4 0

3 years ago