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Hunter-Best [27]
3 years ago
7

Question 15

Mathematics
2 answers:
Hoochie [10]3 years ago
8 0

Answer:

10% chance or 1/10

Step-by-step explanation:

5 out of the 100 cards are free lunches simplified it would be

1/10

GrogVix [38]3 years ago
5 0

Answer:

1/20

Step-by-step explanation:

Jo's Cards - 5

Total cards - 100

= 5/100

Divide both side by 5.

(5/5) / (100/5) = 1/20

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What is the distance between the points (38, 30) and (14, 20)
Brums [2.3K]
Here's a formula to slove ur problem
√(x₁-x₂) +(y₁-y₂)
=√(38-14) +(30-20)
=√24+10
=√34
6 0
3 years ago
Read 2 more answers
To sew a pair of jeans, 630 feet of thread is needed. Unfortunately the fabric store only sells thread in yards. How many yards
inna [77]

Answer:

210

Step-by-step explanation

One yard is equal to 3 feet so the simplest way is to divide the number of feet by 3 and that will give you your answer.

6 0
2 years ago
Find the zeros of the function f(x) = x2+ 6x + 18.<br> The 2 is square
Novay_Z [31]
To find the number of zeros in the quadratic equation we factorize it as follows:
f(x)=x²+6x+18
solving using completing square methods we obtain:
x^2+6x=-18
c=(b/2a)^2=9
thus
x²+6x+9=-18+8
x²+6x+9=-9
(x+3)²=-9
hence
x=-3+/-3i
the roots are:
x=-3+3i or x=-3-3i
6 0
3 years ago
What is the slope of the line on the graph?<br><br><br><br> Enter your answer in the box.
MrMuchimi

Answer:

slope = - 2

Step-by-step explanation:

Calculate the slope m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (- 3, 6) and (x₂, y₂ ) = (3, - 6) ← 2 points on the line

m = \frac{-6-6}{3+3} = \frac{-12}{6} = - 2

4 0
3 years ago
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It has been hypothesized that overall academic success for college freshmen as measured by grade point average is a function of
liubo4ka [24]

Answer:

23.2586 ; IQ ; hours spent studying per week

Step-by-step explanation:

Given the regression model:

y = 6.9+0.055x1 +0.107x2 + 0.0853X3.

IQ scores = (X1)

Hours spent studying each week = (X2),

one's high school average = (x3)

The multiple standard error is 6.313 and R^2=0.826.

What is the predicted GPA for a student with a IQ of 108, 32 hours spent studying per week and a high school average of 82?

X1 = 108 ; X2 = 32 ; X3 = 82

y = 6.9 + 0.055(108) + 0.107(32) + 0.0853(82)

y = 23.2586

B.

The Independent variable with the smallest effect on GPA is the variable with the smallest Coefficient, which is IQ with a Coefficient of 0.055

C.

The Independent variable whiae unit change has the greatest effect on GPA is X2, hours spent studying per week as it has the highest Coefficient of all independent variables with a Coefficient value of 0.107.

5 0
3 years ago
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