Which expression is equivalent to 3x + 6

Answer:

11

Step-by-step explanation:

x3+x-5

3*4=12

12+4-5

16-5=11

pls i REALLY need brainliest

Answer:

Step-by-step explanation:

z varies inversely

so z=a/x^2

9=a/(2/3)^2

9=a/(4/9)

9=9a/4

a=4

z=4/x^2

z=4/(5/4)^2

z=4/(25/16)

z=64/25

If z varies inversely as x², it is given by the equation z = 4/x². When x = 5/4, z = 2.56

An equation is an expression that shows the relationship between two or more numbers and variables.

z varies inversely as x². Let k represent the constant of proportionality, hence:

z = k/x²

z = 9 when x = 2/3, hence:

9 = k / (2/3)²

k = 4

z = 4/x²

When x = 5/4:

z = 4 / (5/4)²

z = 2.56

If z varies inversely as x², it is given by the equation z = 4/x². When x = 5/4, z = 2.56

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Answer:

7.32

Step-by-step explanation:

Answer:

7.32

Step-by-step explanation:

To find the unit rate, divide 10.98 by 1.5 to get 7.32

Answer:

D can form a right angle triangle.

Step-by-step explanation:

Answer:

I don't know

Step-by-step explanation:

but thanks for the points

Answer:

-8

Step-by-step explanation

2 to the power of -1 = 0.5

5 to the power of -1 = 0.2

0.5/0.2 = 2.5

So,

(2.5)2 x -5/8 to the power of -1

-5/8 = -0.625

-0.625 to the power of -1 = -1.6

So,

(2.5)2 x -0.625

5 x -0.625

= -8

Answer:

-8

Step-by-step explanation:

(2^-1 ÷ 5^-1) = 5/2

(5/2) x 2 = 10/2 or 5

-5/8 ^-1 = - 8/5

5 x - 8/5 = -40/5 or -8

Hope its helpful ☺️

Answer:

106

Step-by-step explanation:

From the information given :

Let:

Mathematics = M

Physics = P

Chemistry = C

n(M) = 64 ; n(C) = 94 ; n(P) = 58

All three (n(MnCnP) = 14

Kindly check attached picture for clearer explanation :

Number of students who took only one subject :

(24 + 22 + 60) = 106

Answer:

6.12

Step-by-step explanation:

Answer:

The decimal is 0.46

Step-by-step explanation:

Given

Less than 0.8

Greater than 0.02

Required

Determine the decimal

Let the decimal be x

Such that:

[tex]x < 0.8[/tex] and [tex]x > 0.02[/tex]

Rewrite as:

[tex]x > 0.02[/tex] and [tex]x < 0.8[/tex]

Rewrite as:

[tex]0.02 < x[/tex] and [tex]x < 0.8[/tex]

This can be merged to give:

[tex]0.02 < x<0.8[/tex]

From the list of given options, only 0.46 fall in this range because:

[tex]0.02 < 0.46<0.8[/tex]

So:

[tex]x = 0.46[/tex]

Answer:

31.5

Step-by-step explanation:

Answer:

let their age be x and y

x=y.......1st equation

2

now,

product of their age

x+y=63

y +y=63 (putting the value of x=y/2)

2

3y =126

y=126

3

y=42

hence,

age of jessica is y =42.

Answer:

Yes

Step-by-step explanation:

17 pages in 30 minutes is 51 pages in 90 minutes. He needs 50 more pages in 90 minutes so he will be able to finish his book.

I hope this answer helped, and if it was correct, please mark this as brainliest! Thank you!

Multiply 12 slices by 2/3:

12 x 2/3 = (12 x 2) /3 = 24/3 = 8

The answer is 8

Answer:

8

Step-by-step explanation:

12/3 = 4

4*2=8

Answer:

y>2x-5

Step-by-step explanation:

-2y+4x<10

-2y<10-4x

divide by -2 to isolate the y

y>-5+2x

Since we are dividing by a negative the sign flips.

Our final answer is y>2x-5

Answer:

C = 62.8 cm

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Geometry

Step-by-step explanation:

Step 1: Define

r = 10 cm

Step 2: Find C

Answer:

62.8

Step-by-step explanation:

Radius is 10, so the diameter is 20 (10x2)

20 x 3.14(pi)= 62.8

Answer:

123

Step-by-step explanation:

because if its lower than 50 you round down, if its 50 or above you round up

Answer:  

If you like to round 123.45 to the nearest tenth, leaving only one number after the decimal point, then you have come to the right post. Number:.

Step-by-step explanation:

Answer:5/5

Step-by-step explanation:

Answer:

-7

Step-by-step explanation:

well, y-intercept is value of y when x = 0.

from the problem, we already have the answer, it is -7

but more detailed way is

m = -3

[tex] \frac{y - ( - 7)}{x - 0} = - 3 \\ y - ( - 7) = - 3x \\ y = - 3x - 7 \\ [/tex]

y-intercept is value of y when x = 0

[tex]y = - 3(0) - 7 \\ y = - 7[/tex]

Answer:

1/12

Step-by-step explanation:

Since the two rolls are independent, then the chance of getting a 6 in the first and an odd number in the second is obtained by multiplying the two probabilities.

1/6 is the probability of rolling 6, 1/2 is the probability of rolling an odd number

1/6 times 1/2 is 1/12

Step-by-step explanation:

Total cookies = 960

Each box has 16 cookies

Her goal is $630

First, you want to find out how many boxes she made

960÷ 16 = 60

She made 60 boxes

Now you want to find the price for each box

630 ÷ 60 = 10.5

She should charge $10.50 for each box

I hope this helps!!!

Step-by-step explanation:

lets radius be r and height be h,

r+h=21 -----(1)

curved surface area

2×pi×r×h=616 -----(2)

use simultaneous eqn to solve for r and h.

total surface area of cylinder= 2×pi×r×h + 2×pi×r²

= ans if im not wrong

Answer:

4)

Step-by-step explanation:

Answer:

It's 4

Step-by-step explanation:

Answer:

Step-by-step explanation:

Given the polynomial P(x) = x^2-3x-10

To check that the remainder is zero if divided by x - 5, we will first have to equate x - 5 to zero and get x;

x - 5 = 0

x = 5

Then find P(5)

P(5) = 5^2 - 3(5) - 10

P(5) = 25 - 15 - 10

P(5) = 25-25

P(5) = 0

This shows that x - 5 is a factor of the polynomial since P(5) gave us zero according to the factor theorem

Answer:

27-t times 3

27- 6 times 3

27-18

9

Answer:

y=-2x+5..…...........

Answer:

Choice c. [tex]\sqrt{12}[/tex]

Step-by-step explanation:

Vectors

Suppose we have a vector v defined as

[tex]\vec v=a\mathvf{i}+b\mathvf{j}[/tex]

The magnitude of the vector is:

[tex]\mid\mid\vec v\mid\mid=\sqrt{a^2+b^2}[/tex]

On the other hand, the dot product of the vector by itself is:

[tex]\vec v\cdot\vec v=a*a+b*b=a^2+b^2[/tex]

Note the relation between these two operations is:

[tex]\mid\mid\vec v\mid\mid=\sqrt{\vec v\cdot\vec v}[/tex]

Since we are given:

[tex]\vec v\cdot\vec v=12[/tex], then:

[tex]\mid\mid\vec v\mid\mid=\sqrt{12}[/tex]

Choice c) [tex]\sqrt{12}[/tex]

Answer:

A

Step-by-step explanation:

8x-2x+10=x+25

6x+10= x +25

6x-x=25-10

5x=15

x=3

Answer:

about 3 of them

Step-by-step explanation:

15 1/3 divided by 4 4/5 = 3 7/36