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3 years ago

If <R = 50 in circle O, what is <O?

Mathematics

1 answer:

maw [93]3 years ago

3 0

Answer:

Step-by-step explanation:

The inscribed angle R is half of the central angle O that subtends the same arc on the circle.

Therefore m∠O = 2m∠R

m∠O = 2(50°) = 100°

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Two co-teachers, Daniel and Mathew, have to grade a set of math journals.

Ulleksa [173]

Answer:

220

Step-by-step explanation:

55 percentage of x = 121

so X = 220

as simple as that

6 0

3 years ago

Read 2 more answers

Calculate the x and y intercept for the line:y= -2x 8

sattari [20]

This is wrote incorrectly you forgot a + or - between the x and 8

Assuming its y= -2x + 8 the answer is
x-intercept (4,0)
y-intercept:(0,8)

Assuming its y = -2x - 8 the answer is
x-intercept: (-4,0)
y-intercept (0,-8)

Please mark brainliest.

3 0

3 years ago

Help with the first question!! Is it right??

Aloiza [94]

No its 20 u should know that

6 0

3 years ago

Harold bought 3 pounds od red applesand 4.2 pounds of green apples from Blue Star Company,where both kinds of apples were $1.75

alexandr1967 [171]

3(1.45)+4.2(1.75)= 5.25+7.35= 12.6 therefore Harold spent $12.60 on apples.

8 0

4 years ago

Need help with this math question

anastassius [24]

Answer:

The vertex is: $(6, 8)$

Step-by-step explanation:

First solve the equation for the variable y

$x^2-4y-12x+68=0$

Add 4y on both sides of the equation

$4y=x^2-4y+4y-12x+68$

$4y=x^2-12x+68$

Notice that now the equation has the general form of a parabola

$ax^2 +bx +c$

In this case

$a=1\\b=-12\\c=68$

Add $(\frac{b}{2}) ^ 2$ and subtract $(\frac{b}{2}) ^ 2$ on the right side of the equation

$(\frac{b}{2}) ^ 2=(\frac{-12}{2}) ^ 2\\\\(\frac{b}{2}) ^ 2=(-6) ^ 2\\\\(\frac{b}{2}) ^ 2=36$

$4y=(x^2-12x+36)-36+68$

Factor the expression that is inside the parentheses

$4y=(x-6)^2+32$

Divide both sides of the equality between 4

$\frac{4}{4}y=\frac{1}{4}(x-6)^2+\frac{32}{4}$

$y=\frac{1}{4}(x-6)^2+8$

For an equation of the form

$y=a(x-h)^2 +k$

the vertex is: (h, k)

In this case

$h=6\\k =8$

the vertex is: $(6, 8)$

5 0

3 years ago