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Helen [10]
3 years ago
13

Can someone please help me

Mathematics
1 answer:
Alexeev081 [22]3 years ago
5 0
Hope this helps. if you do not understand, can ask :)

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Help pls!!! The radius of a circle is 15 inches. Enter the area of the circle, in square inches. Round your answer to the neares
Bas_tet [7]

Answer:

706.5 inches squared

Step-by-step explanation:

The formula for the area of a circle is pi r^2. r being the radius. Because you have the radius, and pi is 3.14 in this case, your new formula is A=3.14(15)^2. 15 squared is 225, times 3.14 gives you 706.5

Your final answer is already in tenths so you don't need to round! Hope this helps :)) and brainliest is always appreciated

4 0
3 years ago
Tara had $350 in her bank account she received three birthday checks for $35 each and but bought two new video games for $41 eac
goldfiish [28.3K]

We conclude that the final amount that she has in her bank account is $375.

<h3>How much has Tara in her bank account now?</h3>

Here we need to perform some additions and subtractions. We know that Tara starts with $350 in her account.

Then she received 3 checks for $35 each, so at this point she has:

$350 + 3*$35 = $455

Now she buys 2 video games for $41 each, so we need to subtract two times $41, we will get:

$455 - 2*$41 = $375

We conclude that the final amount that she has in her bank account is $375.

If you want to learn more about additions and subtractions:

brainly.com/question/25421984

#SPJ1

6 0
2 years ago
A new hospital tracked the number of births during its first 6 months of operation, as shown in the table. Find a quadratic func
UNO [17]
Let    x refers to the Month numbers
And  y refers to Number of births

There is 5 steps to find the quadratic function that models the data.

First step           ⇒ <span>Plot <span>the data pairs (<span>x<span>, <span>y<span>) in a coordinate plane.
                              which are the blue circles in the attached figure

Second step     ⇒ </span></span></span></span></span></span><span>Draw <span>the parabola you think best fits the data.
                             Which is the red function in the attached figure.

</span></span><span><span>Third step         ⇒</span> Estimate <span>the coordinates of three points on the
<span>                             parabola, which are (2, 108), (4, 68), and (6, 75).</span>
                             </span></span><span><span>which are the black squares in the attached figure</span>

Fourth step       ⇒ </span><span>Substitute <span>the coordinates of the points into the<span> model <span>
                            y <span>= <span>ax<span>2 <span>+ <span>bx <span>+ <span>c
<span>                            to obtain a system of three linear equations.</span>

                            4a + 2 b + c = 108   ---------(1)
                            </span></span></span></span></span></span></span></span></span></span></span><span><span>16a + 4 b + c = 68   ---------(2)</span>
                            36a + 6 b + c = 75   ---------(3)   

Fifth step   ⇒ </span><span>Solve <span>the linear system.
                      By using the calculator
                      a = 5.875 , b = -55.25 , c = 195

So, the</span></span><span> quadratic model for the data is ⇒ y = 5.875 x²- 55.25 x + 195
============================================
T</span><span>o predict the number of births for month 8
substitute with x = 8 ⇒  y = </span><span>5.875 * 8²- 55.25 * 8 + 195 = 129</span>







3 0
3 years ago
Read 2 more answers
jack has a bag of fruits if he randomly selects a piece of fruit from the bag it is likely to be an apple what is a possible tha
denpristay [2]

Answer:

So far we know Jack has a bag of fruits and he if he randomly picks up a fruit from he will most likely get an apple. From this, we know that the percentage of an apple being picked is at least above 50%. And since it is likely we know it could be close to a 70 : 30 ratio.

:)

8 0
3 years ago
Read 2 more answers
Kyle spend 1/5 of his money on clothing. He had 120 remaining. What was the cost of the clothes Kyle bought
dolphi86 [110]

Answer:

30 is the cost of clothes Kyle bought.

Step-by-step explanation:

Given: Kyle spend 1/5 of his money on clothing.

          Remaining money is 120.

Lets assume the total money Kyle had be "x".

∴ Money spent on clothes = \frac{1}{5}\times x= \frac{x}{5}

Now, putting up value in the equation to find the total amount of money.

We know, money remaining is 120

x-\frac{x}{5} = 120

Taking LCD subtract the fraction.

⇒ \frac{(x\times 5)- x\times 1}{5} = 120

⇒ \frac{5x-x}{5} = 120

⇒\frac{4x}{5} = 120

Multiplying 5 both side

⇒4x= 120\times 5

dividing 4 on both side.

∴x= \frac{120\times 5}{4}

∴ x= 150

Kyle has total 150 money to spend.

Kyle spent \frac{1}{5} of his total money on clothing.

⇒ cost of clothes kyle bought= \frac{1}{5} \times 150= 30

Hence, Kyle spent 30, which was the cost of clothes kyle bought.

6 0
3 years ago
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