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3 years ago

Determine is its a triangle

Mathematics

1 answer:

d1i1m1o1n [39]3 years ago

3 0

Answer:

10,24,26 right triangle

9,16,21 no

hope this helps you out

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Afina-wow [57]

$\bf \textit{area of a sphere}\\\\
A=4\pi r^2\qquad \qquad \cfrac{A}{4\pi }=r^2\implies \sqrt{\cfrac{A}{4\pi }}=r$

3 0

3 years ago

Adriel answered 54 questions correctly on his multiple choice history final and earned a grade of 45%. How many total questions

alex41 [277]

Answer:

There were 120 questions on the test.

Step-by-step explanation:

It is given that:

Number of questions answered = 54

Grade percent = 45%

Let,

x be the total number of questions

45% of x = 54

$\frac{45}{100}x=54\\0.45x = 54$

Dividing both sides by 0.45

$\frac{0.45x}{0.45}=\frac{54}{0.45}\\x=120$

Therefore,

There were 120 questions on the test.

8 0

3 years ago

I need help finding the bottom layer of the cake

Alenkasestr [34]

In a trpezium, the median line is always parallel to the bases. The expression for the length of the median of trapezium is :

$\text{length of mediam=}\frac{Sum\text{ of parallel sides}}{2}$

In the trapezium: NM = ML=LK=PQ=QR=RS

we have : NP = 8, LR =20

Conisder the case of trapezium NPLR, where MQ is the median

From the expression of the length of median:

$\begin{gathered} MQ=\frac{NP+LR}{2} \\ MQ=\frac{8+20}{2} \\ MQ=\frac{28}{2} \\ MQ=14 \end{gathered}$

Now, consider the case of trapezium MQSK, where LR is act as median, MQ= 14, LR =20

From the expression of the length of median

$\begin{gathered} \text{length of median=}\frac{Sum\text{ of parallel sides}}{2} \\ LR=\frac{MQ+KS}{2} \\ 20=\frac{14+KS}{2} \\ 14+KS=40 \\ KS=40-14 \\ KS=26\text{ inches} \end{gathered}$

So, the diameter of the bottom KS is 26 inches

Answer : the diameter of the bottom KS is 26 inches

6 0

1 year ago

Can someone answer this question please answer it correctly if it’s corect I will mark you brainliest

son4ous [18]

To find how much more money was raised for animals in April than in June, we need to know exactly how much was raised in each month.

April: $4

June: $2

4 - 2 = 2

$2 more was raised for animals in April than in June.

Hope this helps! :)

8 0

3 years ago

Read 2 more answers

at the movie theatre admission is $6.30 an adult admission is $9.60. on thursday twice as many adult tickets as child tickets we

Afina-wow [57]

Answer:

number of child tickets sold on saturday is 21

number of adult tickets sold on saturday is 42

Step-by-step explanation:

Let's assume

number of child tickets sold on saturday is x

number of adult tickets sold on saturday is y

On saturday, twice as many adult tickets as child tickets were sold

so, we get

child admission is $6.30 and adult admission is $9.60

a total sales of $535.50

we get

now, we can plug y=2x

now, we can solve for x

now, we can find y

so,

number of child tickets sold on saturday is 21

number of adult tickets sold on saturday is 42.........Answer

7 0

3 years ago