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Nady [450]
3 years ago
11

174 fourth graders voted. How many of them voted for chicken nuggets? Ps. PLease help;3

Mathematics
2 answers:
Rudik [331]3 years ago
5 0

Answer:

I need more info.

Step-by-step explanation:

Dafna1 [17]3 years ago
5 0
That’s the question? If you want us to answer that we need you to explain more
You might be interested in
If (-3+y) is positive, but (-9+y) is negative, what is one number that y could be? *
sukhopar [10]

Answer:

it could be any number less then 9 so examples would be 8,7,6,5,4,3,2,1 so on so forth

6 0
3 years ago
Read 2 more answers
The radius of this ball is 15 inches. Which equation gives the ball's surface area, in square inches?
victus00 [196]

Answer:

\large\boxed{S.A.=4500\pi\ in^2\approx14130\ in^2}

Step-by-step explanation:

The formula of a surface area of a ball (sphere):

S.A.=\dfrac{4}{3}\pi R^3

R - radius

We have R = 15in. Substitute:

S.A.=\dfrac{4}{3}\pi(15^3)=\dfrac{4}{3}\pi(3375)=4500\pi\ in^2

If you want to get an approximation, then:

\pi\approx3.14\\\\S.A.\approx(4500)(3.14)=14130\ in^2

5 0
3 years ago
Phoebe took a survey of her classmates' favorite sport. The results are in the table below:
Komok [63]

The choose ( 0.25 )

Relative Frequency = Category Frequency / Total Frequencies

Category Frequency (prefer tennis) = 7

Total Frequencies = 28

Relative Frequency = 7 / 28

Relative Frequency = 0.25

I hope I helped you^_^

3 0
3 years ago
Given that the sum of squares for error is 60 and the sum of squares for regression is 140, then the coefficient of determinatio
Anastasy [175]

Answer:

<h2>0.7</h2>

Step-by-step explanation:

The coefficient of determination which is also known as the R² value is expressed as shown;

R^{2} = \frac{sum\ of \ squares \ of \  regression}{sum\ of \ squares \ of total}

Sum of square of total (SST)= sum of square of error (SSE )+ sum of square of regression (SSR)

Given SSE = 60 and SSR = 140

SST = 60 + 140

SST = 200

Since R² = SSR/SST

R² = 140/200

R² = 0.7

Hence, the coefficient of determination is 0.7. Note that the coefficient of determination always lies between 0 and 1.

7 0
3 years ago
Please explain how to solve this step by step, I know the answer, but need to explain it. 2n^4-10n^2-72
vovikov84 [41]

Answer:

2(n + 3)(n - 3)(n² + 4)

Step-by-step explanation:

Your polynomial is: P =2n⁴ - 10n² - 72

1. Remove the common factor

2n⁴ - 10n² - 72 = 2(n⁴ - 5n² - 36)

2. Factor the quadratic

P is a quadratic in n².

(a) Find two numbers that multiply to give -36 and add to give -5.

List the positive factors of 36: 1, 2, 3, 4, 6, 9, 18, 36

One of the numbers must be negative. Start with the numbers near the middle of the list.

By trial and error, you will find that -9 and +4 work:

-9 × 4 = 36 and -9 +4 = -5

(b) Rewrite -5n² as -9n² + 4n²

n⁴ - 9n² + 4n² - 36

(c) Factor the first two and the last two terms

n²(n² - 9) + 4(n² - 9)

(d) Separate the common factor

(n² - 9)(n² + 4)

So, P = 2(n² - 9)(n² + 4)

(e) Factor n² - 9

n² - 9 is the difference of two squares.

n² - 9 = (n + 3)(n - 3)

P = 2(n + 3)(n - 3)(n² + 4)

4 0
3 years ago
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