Please help me! No links

How many math problems were answered correctly by Suzy and Joe?

Please Help Me! No LinksHow Many Math Problems Were Answered Correctly By Suzy And Joe?

Answers

Answer 1
Since suzy answered 9 and Joe answered 12, you add 9+12 to get 21. The answer is 21 math problems.

Related Questions

If y varies jointly as x and z and y = 12 when x = -2 and z=3, find y when x is 4 and z is -1

A. 6
B. 9
C. 4
D. 8​

Answers

Answer:

D. 8

Step-by-step explanation:

y varies jointly as x and z

y = k(xz)

-------------------------

Find k, the constant of variation

y = 12 when x = -2 and z=3

12 = k(-2 * 3)

12 = k(-6)

k = -2

-------------------------

find y when x is 4 and z is -1

using k = -2

y = -2(4 * -1)

y = -2(-4)

y = 8

which expression is equivalent to (7x^3)^2 (x^8)^1/2​

Answers

Answer:

Step-by-step explanation:

using a positive and negative integer, write an addition expression that equals -9​

Answers

Answer:

-13 + 4

Step-by-step explanation:

For the sum to be negative, the absolute value of the negative integer has to be 9 more than the positive integer. There are an infinite number of equations, but here is one:

-13 + 4

When Bunny and Walter came home from practice, there was a note from their mother sitting on top of a pizza box. “Had to run to a meeting. You two can share the rest of the pizza for dinner. Love ya!” When they opened the box, they saw that exactly one-fourth of the pizza was gone. If Bunny and Walter split what was left evenly, how much of the pizza will each get?

Answers

9514 1404 393

Answer:

  3/8 pizza

Step-by-step explanation:

If 1/4 of the 4/4 of the pizza was gone, 3/4 remained. When that is split in half, each half is (3/4)(1/2) = 3/8 of the pizza.

Each gets 3/8 of the pizza.

An electric car traveled a record of 321.8 miles in one hour. At this rate, how far would it travel in 15 minutes?

Answers

Answer:

80.45 miles

Step-by-step explanation:

Divide and multiply

Complementary and supplementary angles

Answers

Complementary angles- equal 90º
Supplementary angles- equal 180º

That little box in the corner of the figure indicates 90º, meaning it will be formed by complementary angles
So, to find xº, subtract the known angles from the total 90
90-29 = 61º
Thus, xº is 61º


Pls someone help me

Answers

area of triangle = base x height over 2
triangle 1
10 x 12 = 120
120/2 = 60
triangle 2
10 x 12 = 120
120/2 = 60
triangle 3
18 x 12 = 216
216/2 = 108
triangle 4
18 x 12 = 216
216/2 = 108

add
108 + 108 + 60 + 60 = 336 square units

At a small savings and loan company, you have to deal with your customers being victims of identity theft. This happens unpredictably to one of your customers once every 9 weeks; and no incident seems to have any connection to any other incident. a) What is the probability that you will have to deal with no more than 4 incidents of identity theft in the next year (52 weeks)

Answers

Answer:

At a small savings and loan company, you have to deal with your customers being victims of identity theft. This happens unpredictably to one of your customers once every 9 weeks; and no incident seems to have any connection to any other incident.

Step-by-step explanation:

The probability that you will have to deal with no more than 4 incidents of identity theft in the next year is 30.08 %

What is a Binomial Distribution?

The binomial distribution is a type of probability distribution that predicts the likelihood of obtaining one of two outcomes given a set of inputs. It summarizes the number of tries where each trial has the equal chance of producing the same result.

The formula for Binomial Distribution is given by

P ( x ) = [ n! / ( n - x )! x! ] pˣqⁿ⁻ˣ  

where

n = number of trials

x = number of successes

p = probability of getting a success in one trial

q = probability of getting a failure in one trial

q = 1 - p

Given data ,

Let the probability that you will have to deal with no more than 4 incidents be P ( x ≤ 4 )

Now , the success is one of your customers once every 9 weeks

So , p = 1/9

q = 1 - p = 8/9

x = 4

Number of trials n = 52 weeks

And , the probability that you will have to deal with no more than 4 incidents be P ( x ≤ 4 ) is

P ( x ≤ 4 ) = [ n! / ( n - x )! x! ] pˣqⁿ⁻ˣ  

Substituting the values in the equation , we get

P ( x ≤ 4 ) = [ 52! / ( 48 )! 4! ] ( 1/9 )⁴( 8/9 )⁴⁸

On simplifying the equation , we get

P ( x ≤ 4 ) = 0.3008

P ( x ≤ 4 ) = 30.08 %

Therefore , the value of P ( x ≤ 4 ) is 30.08 %

Hence , the probability of no more than 4 incidents is 30.08 %

To learn more about binomial distribution click :

https://brainly.com/question/29350029

#SPJ2

ANSWER THIS ASAP NO FILE AT ATT!! IM AT 69 I NEED A 70 JUST GET IT RIGHT

Answers

Answer:

A

Step-by-step explanation:

A shows a counterclockwise 90° rotation, so it is the correct answer.

B shows a reflection.

C shows a translation.


The slope of the line that passes through the point (-2, -4) and (-3, -8) is ______

Answers

Answer:

4

Step-by-step explanation:

We know ,

Slope = difference of y co ordinate / difference of x coordinate

=> m = -8+4/-3+2

=> m = -4/-1

=> m = 4

The correct answer is -4

what is 90divided by 9??​

Answers

Answer:

10 bc 9 • 10 = 90

Step-by-step explanation:

We have two urns. Urn 1 has 2 red balls and 3 yellow balls, while Urn 2 has 3 red balls and 7 yellow balls. We randomly select 75 balls form Urn 1, sampling with replacement. We independently randomly select 100 balls from Urn 2, sampling with replacement. Find the variance of the random variable defined as the number of red balls obtained from Urn 2 less the number of red balls obtained from Urn 1.

Answers

Answer:

[tex]\sigma (y_1-y_2)=39[/tex]

Step-by-step explanation:

From the question we are told that:

Urn 1 :2 Red, 3 Yellow

Urn 2:3 Red, 7 Yellow

Sample 1 [tex]n_1=75\ balls[/tex]

Sample 2 [tex]n_2=100\ balls[/tex]

Generally the Probability of Red ball drawn is mathematically given by

For Urn 1

[tex]P(R)_1=\frac{2}{5}[/tex]

[tex]P(R)_1=0.4[/tex]

For Urn 2

[tex]P(R)_1=\frac{3}{10}[/tex]

[tex]P(R)_1=0.3[/tex]

Generally the equation for Variance of two independent variables [tex]\sigma (y_1-y_2)[/tex] is mathematically given by

 [tex]\sigma (y_1-y_2)=\sigma y_2 +(-1)^2 \sigma(x_1)[/tex]

    Where red balls drawn from both Urn is Modeled

    [tex]Urn_1\ is\ Modeled\ as (n_1=75,p_1=0.4)[/tex]

   [tex]Urn_2\ is\ Modeled\ as\ (n_2=100,p_2=0.3)[/tex]

 [tex]\sigma (y_1-y_2)=n_2 p_2(1_p_2)+n_1*p_1(1-p_1)[/tex]

 [tex]\sigma (y_1-y_2)=100*0.3(1-0.3)+75*0.4(1-0.4)[/tex]

 [tex]\sigma (y_1-y_2)=39[/tex]

Therefore the variance of the random variable defined as the number of red balls is

 [tex]\sigma (y_1-y_2)=39[/tex]

Triangle has vertices A(-1, 3), B(-2, 1), and C(0, 4). If the triangle is reflected over the y-axis, what are the coordinates of A'?

Answers

Answer: A’ (1, 3)

Step-by-step explanation:

Reflecting in the y-axis will only reverse the x values

Anyone with the answer to this question today?

Answers

The answer is A, I know because I took it

Rewrite exponential expressions

Answers

Answer:

A = 48

Step-by-step explanation:

In this equation, we can factor out the expression [tex](\frac{1}{7} )^x[/tex]. If we do so, the expression becomes:

[tex](\frac{1}{7})^x((\frac{1}{7})^{-2} - 1)[/tex]

We can simplify to get:

[tex](\frac{1}{7} )^x(49 - 1)[/tex]

and get:

[tex]48*(\frac{1}{7})^x[/tex]

Therefore, A = 48

A museum has an aquarium in the shape of a right rectangular prism that is 22.9 meters long, 7.5 meters wide, and 5.6 meters high. What is the volume, round to the nearest cubic meter, of the aquarium?
A. 280
B. 623
C. 1288
D. 962

Answers

Answer:

1288 c m 3

Step-by-step explanation:

To work out volume, you just do the simple calculation of height x width x length. So what we need to do here is 6 x 7.5 x 22.9 =  

1212.5 c m 3  .

The decimal is a 5 so that is rounded up to give the nearest meter hence the answer to the question is  

1288 c m 3  .

BRAINLIST + 100 POINTS

2) Employees were asked how many times per week they exercised. The frequency table shows the results of the survey
Number of times exercised: 0,1,2,3,4,5,6,7,8
Frequency: 7,10,5,13,32,16,15,8,4
(a) Create a probability distribution table from the frequency table. Round probabilities to the nearest hundredth.
FIND
(b) P(x≥5)
(c) P(x=7)
(d) P(x<4)

Answers

Answer:

Heyaa!! My name is Pinky and im here to tell you that the answer is..

Step-by-step explanation:

!!(b)  P( x < 4)  =     ( 5 + 10 + 2 + 9 )  / ( 5 + 10 + 2 + 9 + 33 + 12 + 15 + 3 + 1 ) =  13/45!!

!!(c)  P(x  = 6)  =  15 / (5 + 10 + 2 + 9 + 33 + 12 + 15 + 3 + 1)  =  1/6!!

!!(d) P( x ≥ 5 ) =  (12+ 15 + 3 + 1) /  (5 + 10 + 2 + 9 + 33 + 12 + 15 + 3 + 1) =  7/30!!

Have and Amazing Day now!!

                                                  ~Pinky~

amy runs 2 miles in 30 minutes how long will it take her to run 7 miles at this rate

Answers

One hour and 45 minutes

Answer:

1 hour 45 minutes

Step-by-step explanation:

Time taken to cover a distance of 2 miles = 30 minutes.

Time required to cover 1 mile = 30/2 = 15 minutes.

Time required to cover 7 miles = 15×7

= 105 minutes or 1 hour and 45 minutes.

The radius of a semicircle is 4 millimeters. What is the semicircle's perimeter?

Answers

Answer:

20.57

Step-by-step explanation:

Elijah has
2
1
2
2
2
1

bags of candy. A bag of candy weighs
5
5 pounds. How many pounds of candy does Elijah have?


pounds of candy.1 in3 (3 is above inches)

Answers

Answer: (50 pounds of candy) She has 10 bags of candy if each bag is 5 pounds it’s 5•10 and that’s 50

Answer:

50 pounds

Step-by-step explanation:

How do you make an array of 5/6 x 3/4 ?

Answers

well 5/6 x 3/4 is 15/24 so you’d do 24 dots across in 15 rows

To run 12 miles, how many times must you run around a park that is 2 miles long and 1 mile wide?

Answers

pretty sure it’s 6 miles

Round to the nearest whole dollar: $9.49

Answers

Answer: $9

Step-by-step explanation:  Rounding $9.49 to the nearest dollar consider the tenths’ value of $9.49. Which is 4 and less than 5. Therefore, we have to round the amount down: the dollar ones place value of $9.49, $9, remains $9, and the decimal point and all digits (.49) are removed.

Which statements are true?
Select each correct answer.
A. All triangles have 3 straight sides.
B. Only some triangles are polygons.
C. All triangles are plane figures.
D. All triangles have 3 angles.
E. All triangles have one right angle.

Answers

Answer:

C. c. c.c.c.cc.c.c.

Step-by-step explanation:

Cherri filled out a deposit slip today. She deposited two checks for $56.13 and $22.10 and took out $20 in cash.
What was her net deposit?

Answers

Answer:

$58.23

Step-by-step explanation:

Let's say y is her net deposit. The equation you would want to use is y = 56.13 + 22.10 - 20.

Alaina wants to decide whether her current cell phone plan is better than the package that another company offers

Answers

Answer:

Step-by-step explanation:

look for another phone company then


HELP HELP HELP HELP

What is the equation of the trend line in the scatter plot ?

Answers

Answer:

increasing

Step-by-step explanation:

Need help ASAP plz !!!!!

Answers

Answer:

yep that is correct!

Step-by-step explanation:

Theorem of Pythagoras

hopefully the picture is clear and understandable!

:)

8. Multiple Choice: Which equation is the factored form of x2 + 2x - 3 = 0?

a) (x - 1)(x + 3) = 0

b) (x - 1)(x - 3) = 0

c) (x - 3)(x + 1) = 0

d) (x+3)(x + 2) = 0​

Answers

Answer:

X= 1

Y= -3

Factor and set each factor equal to 0

   

Use I = PRT to find the total amount in the savings account. Type in "money fo $1555.00 at 8% for 2 years
IF YOU ANWSER IM GIVING YOU 50 POINTS!​

Answers

Step-by-step explanation:

use an interest calculator it is going to be much easier

I believe its $6986.25

https://www.bankrate.com/calculators/savings/simple-savings-calculator.aspx

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