Is (1, -2) a solution of the graphed inequality?

Answer:

a=10

Step-by-step explanation:

Answer:

Step-by-step explanation:

So out of 23 students:

And therefore

students have no brothers or sisters

The required probability is:

Answer:

its b for the both of them

Answer:

x = 100

Step-by-step explanation:

Please Mark me brainliest

Answer:

x=100

Step-by-step explanation:

Answer:

50 + 10m = 25m

Step-by-step explanation:

Given that:

Samuel:

Stating shares = 50 shares plus 10 shares per month

Savanah :

Starting shares = 0 plus 25 shares per month

Let number of months = m

Samuel shares = savanna shares

50 + 10m = 25m

50 = 25m - 10m

50 = 15m

50 / 15 = m

Answer:

x = 6

y° = 125°

Step-by-step explanation:

9x + 1 and 7x + 13 are alternate angles and has same measurement

9x + 1 = 7x + 13

9x - 7x = 13 - 1

2x = 12

x = 6

y° and 7x + 13 are supplementary angles so their sum is 180°

7x + 13 ➡ 7×6 + 13 = 55°

55 + y° = 180 subtract 55 from both sides

y° = 125°

Answer:

x=-61

Step-by-step explanation:

Answer:

-61

Step-by-step explanation:

6(x+11)=-300

6x+66=-300

6x=-366

x=-61

hope this is right

By using Pythagoras theorem we can calculate length of YA and which will come out as,  5√3 units, So Option A is correct.

It is the most important theorem of mathematics, which tells us the relationship between sides of the right angle triangle, which are known as Base(A), Height(B), Hypotenuse(H).

Pythagoras theorem,

H²  =  A² + B²

Given information,

The length of the side YZ is twice of the side AZ,

Given length of side YZ is, 10 unit

Therefore,  length of side AZ is, 5 unit

YA is altitude of ΔXYZ,

and ΔAYZ is a right angle triangle so we use Pythagoras theorem

YZ = H = 10

ZA = A  = 5

YA = B  = ?

100²  =  5² + B²

B = 5√3

Hence, the length of side YA is 5√3  unit

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Answer:

The amount of simple interest earned is $156.79

Step-by-step explanation:

Mathematically;

Simple interest = PRT/100

From the question;

P = $525

R = 5.5%

T ; to get this, we need to make the numbers agree;

We do this by dividing number of months by 12 and number of days by 365

So 5 years, 5 months and 5 days will be;

5 + 5/12 + 5/365 = 5.43

So, using this in the simple interest calculations, we have;

S.I = (525 * 5.5 * 5.43)/100

S.I = $156.79

Answer:

Total distance travel = 8.60 miles

Step-by-step explanation:

Given:

Distance of 1st trail = [tex]5\frac{1}{4}[/tex] miles = 5.25 miles

Distance of 2nd trail = 3.35 miles

Find:

Total distance travel

Computation:

Total distance travel = Distance of 1st trail + Distance of 2nd trail

Total distance travel = 5.25 + 3.35

Total distance travel = 8.60 miles

Answer:Volume of Rock= 97.5ml

Step-by-step explanation:

STEP 1

Finding  the volume of rock using  the graduated cylinder that measures volume of liquid can be  done by determining how much water is being displaced by the rock after submersion.

Step 2

Volume of water  before adding rock = 200mL

Volume of water after adding the rock = 297.5mL

Volume of rock =Volume of water after adding the rock - Volume of water  before adding rock

Volume of Rock = 297.5-ml 200ml

= 97.5ml

Answer:

a

Step-by-step explanation:

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Answer: the square root of -1 is i.

Step-by-step explanation:

Answer:j

Step-by-step explanation:

Answer:

its b

Step-by-step explanation:

i did that test

The required solution after three successive iterations is near x = 7/8. Option c is correct.

The equation is the values of two expressions that are equal. In its simplest form in algebra, the definition of an equation is a mathematical statement that shows that two mathematical expressions are equal.

Here, we have,

Equation is -2x + 6 = -(2/3)^x + 5. Approximate the solution to the equation above using three iterations of successive approximation.

given that,

-2x + 6 = -(2/3)^x + 5

Arranging the equation

(2/3)^x - 2x + 1 = 0

Since the solution of the equation is when f(x) = 0 at near to  x = 0.8

f(x) = (2/3)^x - 2x + 1

First iteration at x =0.8

f(0.8) = 0.123

It will go up more to get exact zero, so

Second iteration at x = 0.9

f(0.9) = -0.106

It seems that zero is near 0.9 so will go down

The third iteration at x = 0.87

f(0.87) = -0.037

Here , solution is much near to x = 0.87 or x =7/8.

Thus, the required solution after three successive iterations is near x = 7/8.

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Answer:

5

Step-by-step explanation:

16÷3=5r1. Hope this helps

Answer:

Step-by-step explanation:

Given 1/2,5, and -2 as roots of the polynomial, the function in terms of x is expressed as;

P(x) = (x - 1/2)(x - 5)(x+2)

Expand;

(x - 1/2)(x - 5) = x²-5x -x/2 + 5/2

(x - 1/2)(x - 5) = x²-11x/2 + 5/2

P(x) = (x²-11x/2 + 5/2)(x+2) = x³+2x²-11x²/2-22x+5x/2 + 10

P(x) = x³-7x²/2-39x/2 + 10

Hence the required polynomial is x³-7x²/2-39x/2 + 10

Answer:

I'm confused

Step-by-step explanation:

what is it

How do we help? theres no question??

The equation of the line is y + 40x = -78.

Here, we are given that a line passes through point (-2,-2) and is parallel to the line 5x - y = 45x.

when two lines are parallel their slopes are equal. So, let us first find the slope of  line 5x - y = 45x.

The standard form of the equation of a line is- y = mx + c, where m is the slope of the line.

Here 5x - y = 45x can be written as-

y = -40x

Thus, the slope of the line is -40.

Now we can use the point slope form to find the equation of our line.

According to the point slope form-

(y - y1) = m(x - x1)

here, x1 = -2 and y1 = -2

Thus equation becomes-

(y + 2) = -40 ( x + 2)

y + 2 = -40x - 80

y + 40x = -78

Thus, the equation of the line is y + 40x = -78

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Answer:

NO it is not true

[tex]f(x)=-3x[/tex]

Substitute x = 5 in the equation.

[tex]f(5)=-3(5)\\f(5)=-15[/tex]

Therefore, the answer is -15 or last choice when x = 5.

Answer:

the answer is B.

Step-by-step explanation:

the answer is b because both sides increase

Answer:

16

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Trigonometry

Step-by-step explanation:

Step 1: Define

We are given a right triangle. We can use PT to solve for the missing length.

Step 2: Identify Variables

Leg a = 12

Leg b = x

Hypotenuse c = 20

Step 3: Solve for x

Answer:

hi

Step-by-step explanation:hi

hi

Answer:

40%

[tex] \frac{2}{5} times \: both \: by \: 2 \frac{4}{10} = .4 = 40\%[/tex]

Answer:

3/4

Step-by-step explanation:

Answer:

43 tickets

Step-by-step explanation:

50% of 86 (86 x .5) = 43

Answer:

43

Step-by-step explanation:

If in total you have 86 sold split to 50 and you get 43

Answer:

2.5, 2.75, 3.7, 4¾ (4.75), 5.5, 29/5 (5.8), 6, 21/4 (7)

Step-by-step explanation:

I converted the fractions into decimals to make it easier to order. Hope this helps.

Answer:

A. 275

Step-by-step explanation:

1= 100% So 2= 200%

1/4= 25% (Just like money) 3/4= 75%

200%+75%= 275

Hope this helps!!!! Have a great day!!!