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1 year ago

Which of the following segments is a diameter of O?

Mathematics

2 answers:

mel-nik [20]1 year ago

4 0

Answer:

Step-by-step explanation:

A diameter is a chord of a circle that passes through the center of the circle.

A chord of a circle is a segment inside the circle whose endpoints are on the circle.

Chords of the circle:

ZY, ZX, YW, UV

Of all those chords, only two pass through the center of the circle:

ZX, YW

Of the two diameters, only one is a choice:

Answer: B. ZX

postnew [5]1 year ago

4 0

Answer:

Step-by-step explanation:

A pex

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Cindy saves $420 each month . her monthly salary is $ 2100. what is the ratio of the amount cindy saves to the amount she earns

AfilCa [17]

I took the test the correct answer is 1:5.

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1 year ago

A zookeeper predicted that the weight of a newborn lion would be 2.8 pounds. when the zoo's lion gave birth, the newborn weighed

Sonja [21]

Answer:

20%

Step-by-step explanation:2.8-3.5 then divide that by 3.5 and multiple the answer by 100 to get the percent

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2 years ago

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The approximate areas of two states are listed below. Texas: 2.69\times10^5 square miles Rhode Island: 1.21\times10^3 square mil

Pavlova-9 [17]

Answer:

2.6779*10^5

Step-by-step explanation:

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1 year ago

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49, 34, and 48 students are selected from the Sophomore, Junior, and Senior classes with 496, 348, and 481 students respectively

mrs_skeptik [129]

Answer:

Stratified sampling

Step-by-step explanation:

In the question, students are selected from subgroups of Sophomore, Junior, and Senior classes.

We are told that 49, 34, and 48 students are selected from the Sophomore, Junior, and Senior classes with 496, 348, and 481 students respectively.

This means that the sample numbers of 49, 34 and 48 students were selected in proportion to the subgroup sizes of 496, 348, and 481 students respectively.

Thus, due to the fact that subgroups were selected & that sample number of students were also selected in proportion to their respective subgroup sizes, this is therefore a stratified sampling.

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1 year ago

the Panthers team won exactly 2 of its 9 games. by winning all its remaining N games, the panthers ended with victories half of

emmasim [6.3K]

2+number won over 9+number played=1/2
number won=number played (number played means how many more past 9)

so
if n=number won=number played then $\frac{2+n}{9+n}= \frac{1}{2}$
times both sides by (2)(9+n)
2(2+n)=9+n
distribute
4+2n=9+n
minus n from both sides
4+n=9
minus 4 from both sides
n=5

answer is 5
test
2+5=7
9+5=14
7/14=1/2
true

n=5

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1 year ago