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3 years ago

The circumference of Earth at the equator is about 40,074 kilometers. Find the diameter of Earth to the nearest kilometer.

Mathematics

1 answer:

PtichkaEL [24]3 years ago

8 0

Answer:

C.62,884

Step-by-step explanation:

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A chord of a circular clock is 48 inches long, and its midpoint is 7 inches from the center of the circle. What is the radius of

Sphinxa [80]

ANSWER

The radius is 25 inches

EXPLANATION

From the diagram, the radius of the circle is AC.

From the Pythagoras Theorem,

${r}^{2} = {7}^{2} + {24}^{2}$

$r^{2} = 49 + 576$

Simplify

$r^{2} = 625$

Take positive square root,

$r = \sqrt{625}$

$r = 25$

Hence the radius is 25 inches

8 0

3 years ago

Find the value of y for the given value of x. y=2−9x;x=23

Morgarella [4.7K]

Y= -205

Step-by-step explanation:

Y=2-9x x=23

Y=2-9(23)

Y=2-207

Y= -205

4 0

3 years ago

Read 2 more answers

Plz help i need help asap

tiny-mole [99]

Answer:

20 outcomes

Step-by-step explanation:

the outcomes of the first times the outcomes of the second

= 4×5

= 20

5 0

3 years ago

Add the two expressions. 8k + 4 and 3k + 8 Enter your answer in the box.

ANTONII [103]

11k+12 is the answer

7 0

3 years ago

Read 2 more answers

Please help me, the attachment is below. (If you don't know the answer to the question please don't answer, thank you.)

Liono4ka [1.6K]

Answer:

See Below.

Step-by-step explanation:

Paragraph Proof:

We are given that ∠1 ≅ ∠4. ∠1 and ∠4 are alternate exterior angles. Since they are congruent, by the Alternate Exterior Angles Converse, the two lines being cut by the transversal must be parallel. Then by the Alternate Interior Angles Theorem, ∠3 ≅ ∠2.

2-Column Proof

Statements Reasons:

1) $\angle 1\cong \angle 4$ Given

2) $\text{The two lines are parallel}$ Alternate Exterior Angles Converse

3) $\angle 3\cong \angle 2$ Alternate Interior Angles Theorem

I would write a flowchart as well, but unfortunately, I never learned it that way.

8 0

3 years ago