MATH CHALLENGE 30 POINTS

Hey guys, here’s a math challenge for u. Fill in the missing slots. All the rows, columns, and diagonals have to have the same sum. First person to get the correct answer will get brainliest and a thanks. Go!

Word Problem:

Take a number, x, double it and then take that result away from 10.

Expression:

[tex]10-(2x)[/tex]

Answer:

58121141

Step-by-step explanation:

99165+67894321= 67993486  

67993486-9872345= 58121141

Answer:

2 students

Step-by-step explanation:

First, you find the number of students eating either salads and sandwiches. Then, you add the number of students eating salads and sandwiches together. Finally, you will subtract that number from the 12 total students

9) C rhombus

10) D rectangle

11) B square

12) A square

Given:

x is directly proportional to y and inversely proportional to z.

x= 15 when y = 10 and z= 4.

To find:

The equation that connecting x, y and z.​

Solution:

It is given that, x is directly proportional to y and inversely proportional to z.

[tex]x\propto \dfrac{y}{z}[/tex]

[tex]x=\dfrac{ky}{z}[/tex]              ...(i)

Where, k is the constant of proportionality.

We have, x= 15 when y = 10 and z= 4.

[tex]15=\dfrac{k(10)}{4}[/tex]

[tex]15\times 4=10k[/tex]

[tex]60=10k[/tex]

Divide both sides by 10.

[tex]\dfrac{60}{10}=k[/tex]

[tex]6=k[/tex]

Putting k=6 in (i), we get

[tex]x=\dfrac{6y}{z}[/tex]

Therefore, the required equation is [tex]x=\dfrac{6y}{z}[/tex].

Answer:

35h6j7jhtgr54y6htsrhr6wrttttwy

Step-by-step explanation:

Answer:

90 degrees

Step-by-step explanation:

A.P.E.X

Answer:

Pink = 12 square units

Blue = 10.5 square units

Step-by-step explanation:

(2+4)/2=3

3x4=12

(2+5)/2=3.5

3.5x3=10.5

Answer:

Blue is 42 and pink is 48

Step-by-step explanation:

the squares are 2x2 which is 4 so each square is 4

Answer:

here

Area = 170.2 M2

Area of rectangle = l *b

let l= 3.7m

170.2 = 3.7* b

b= 46m

now , perimeter = 2(l+b)

= 2( 3.7 + 46)

= 99.4 m

Answer:

You can make 14 with some ribbon left over.

Step-by-step explanation:

Answer:

1

Step-by-step explanation:

1

Answer:

A) 115

Step-by-step explanation:

Straight lines = 180 degrees

180 - 65 = 115 degrees

R = 115 degrees

Hope this helped! Have a nice day, and plz mark as brainliest if correct!!!

-Lil G

Answer:

230° because i am very expert in math and this is very easy question for me so the answer is 230°

i have ask my teacher too and he told the right answer is 230°.

Answer:

x=4/3

Step-by-step explanation:

9x+8=12x+4

Subtract 8 from both sides;

9x+8-8=12x+4-8

Simplify;

9x=12x-4

Subtract 12x from both sides;

9x-12x=12x-4-12x

Simplify;

-3x=-4

Divide both sides by -3

-3x/-3=-4/-3

Simplify;

x=4/3

Answer:

a

Step-by-step explanation:

Answer:

Step-by-step explanation:

Probability of finding 2 left handed students out of 8 samples is 0.1488 or 14.88%.

Binomial distribution is the distribution of a random variable X for which there are only two possibilities. The probability p for the success and the probability of 1-p for the failure, which consist of n trials.

Given,

Number of students in the college = 800

10% of which are left handed.

Probability of finding left handed student = 10% = 0.1

p = 0.1

q = 1 - 01 = 0.9

Number of samples, n = 8

We have to find P(x = 2)

The formula to calculate binomial distribution is,

P(x) = ⁿCₓ pˣ qⁿ⁻ˣ

P(x = 2) = ⁸C₂(0.1)²(0.9)⁶

            = 28 × (0.1)²(0.9)⁶

            = 0.14880348

            ≈ 0.1488

Hence the probability is 0.1488.

Learn more about Binomial Distribution here :

https://brainly.com/question/14565246

#SPJ7

Answer:

Option A

Step-by-step explanation:

From the picture attached,

In the given triangles ABC and ADC,

m(∠B) = m(∠D) [Given]

AC ≅ CA [Reflexive property]

But in the absence of third property of congruence ΔABC and ΔADC can't be congruent.

Option A is the answer.

Answer:

can u type it again

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Hard to explain xD

Answer:

0.16

Step-by-step explanation:

Answer:

The simplest form is A.

Step-by-step explanation:

Most likely, it would have the exponent, like x^2 (just an example).

Hope it helped!

Answer:

Look at picture

Step-by-step explanation:

Answer:

6.9

Step-by-step explanation:

sinX=opposite/hypotenuse

sin35=a/12

a=12*0.57357643635

a=6.88291723621≈6.9

Answer:

33.69[tex]\pi[/tex] or 105.83

Step-by-step explanation:

Volume for a cylinder is

V= [tex]\pi r^{2}h[/tex]

we need to find the radius from the base

B = 2[tex]\pi[/tex]r

B= 3.5/2 = 1.75

V =[tex]\pi 1.75^{2}*11[/tex]

V =  33.69[tex]\pi[/tex] or 105.83 depending if you want it in pi for or not

Answer:

This is your answer

Answer:

C

Step-by-step explanation:

If I am understanding the question, it is just asking what the possible choices are, and how many of each.

The answer is B.

Step-by-step explanation:

Yes

Answer:

1.1.1) -61

1.1.2) Term 42

Step-by-step explanation:

Tn= dn (difference) + t0 (term 0)

Tn= -4n+ 11

You can now take this general rule to find out the other terms.

Tn= -4(18)+11

Tn= -61

And the term -157

Tn= -4n+11

-157= -4n + 11

-157 - 11= - 4n

-168= -4n

-168/-4= n

42= n

Answer:

wow-

Step-by-step explanation:

Bet he's doing a good job ;)

Answer:

34

Step-by-step explanation:

300\890

then x100

33.70786517

round to the nearest whole number