pls help asap! brainliest!!

Answer:

These are no solution

(4, -5)

(-10, -20)

Step-by-step explanation:

These are solutions

(-5,0)

(8,0)  on the line but still a solution

(2.5, 8)

(0,-4)  on the line but still a solution

(0, -1)

Answer:

x=3±√7

Step-by-step explanation:

The roots (zeros) are the

x

values where the graph intersects the x-axis. To find the roots (zeros), replace

y

with

0

and solve for

x

.

Answer:

x = 13

Step-by-step explanation:

call the missing number x

8 - x = - 5                        Subtract 8 from both sides

8-8 - x = -5-8                  Combine

-x = - 13                           Multiply by -1

x = 13

Answer: 40

Step-by-step explanation:

Number of DVDs = 160

Thrillers = 35%

Comedies = 2/5 = 40%

Science fiction = 100 - (35 + 40) = 100 - 75 = 25%

The number of science fiction DVDs that Rani has will be:

= 25% × 160

= 25/100 × 160

= 40

Answer:

3. r = -8

4. x = -5

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Step-by-step explanation:

Step 1: Define equation

2(-5r + 2) = 84

Step 2: Solve for r

Step 3: Check

Plug in r into the original equation to verify it's a solution.

Here we see that 84 does indeed equal 84.

∴ r = -8 is a solution of the equation.

Step 4: Define equation

264 = -8(-8 + 5x)

Step 5: Solve for x

Step 6: Check

Plug in x into the original equation to verify it's a solution.

Here we see that 264 does indeed equal 264.

∴ x = -5 is a solution of the equation.

Answer:

Lines that are parallel have the same gradient.

Since the line is y=-5/6x-4,the gradient of the line parallel to this line is also -5/6.

So the equation of the line parallel to y=-5/6x-4 is y-(-2)=-5/6(x-(-6))--->y=-5/6x-7.

Lines that are perpendicular fulfill the requirement: gradient 1×gradient 2=-1 . Then once you find the gradient of the line, you can find the equation of the line.

Hi there!

[tex]\large\boxed{ \lim_{x \to 0} x^{2} - 2= -2}[/tex]

In direct substitution, simply plug in the x-value given to solve for the limit as x approaches zero:

[tex]\lim_{x \to 0} x^{2} - 2 \\\\ \lim_{x \to 0} (0)^{2} - 2\\\\ \lim_{x \to 0} x^{2} - 2= -2[/tex]

Answer:

V=lwh=5 x 9 x 3=135cm+33=4

Step-by-step explanation:

9514 1404 393

Answer:

  24

Step-by-step explanation:

If 7/15 are fond of cricket, the remaining number is 1 -7/15 = 8/15 of the class. The number of students in the class is ...

25 + 20 = 45

so 8/15 of the class is ...

  (8/15)(45) = 8(45/15) = 8(3) = 24

24 students are fond of football.

Step-by-step explanation:

0.068 in scientific notation is 6.8 * 10^-2.

The given number 0.068 in scientific notation is [tex]6.8 \times 10^{-2}[/tex].

The given digit is 0.068.

Move the decimal point to the right until there is only one non-zero digit to the left of the decimal point. Count the number of decimal places you moved. In this case, we move the decimal point two places to the right.

0.068 becomes 6.8

Write the number in the form of a decimal number between 1 and 10, multiplied by 10 raised to the power of the count of decimal places we moved.

6.8 can be written as [tex]6.8 \times 10^{-2}[/tex]

Simplify, if possible. In this case, we can express 6.8 as [tex]6.8 \times 10^{-2}[/tex] since it is already in a simple form.

Therefore, the number 0.068 in scientific notation is [tex]6.8 \times 10^{-2}[/tex].

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Answer:

17) 12 feet, 28 feet

18) x + 3x =16

Answer:

A

Step-by-step explanation:

The circumference formula is C = 2*pi*r, and we have r = 6. So C = 2*pi*6 which means that

C = 12pi.

The area can be found with the formula: A = pi*r^2, and we have r = 6. So, A = pi*36 or 36pi. So the answer would be A where Circumference = 12pi and Area = 36pi

[tex]y = - 3x^{2} + 18x + 10 \\ \frac{d}{dx}( - 3x^{2} + 18x + 10) \\ - 6x + 18 = 0 \\ - 6x = - 18 \\ x = 3[/tex]

The axis of symmetry for parabola is x = 3.

Using derivative to solve for axis od symmetry is easier.

Answer:

19/3

Step-by-step explanation:

Changing 6 1/3 as an improper fraction is 19/3

An improper fraction refers to a fraction whereby the numerator i.e the number at the top is more than the denominator which is the number down.

Changing 6 1/3 to an improper fraction will be:

= [(3 × 6) + 1]/3

= (18 + 2)/3

= 19/3

In conclusion, changing 6 1/3 as an improper fraction is 19/3.

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Answer:

take it from my hand?

Step-by-step explanation:

Answer:

8 miles

Step-by-step explanation:

3+2x+1=20

2x+4=20

2x=16

x=8

8 miles.

Hope this helps!

Merry Christmas!

Answer:

8 miles

Step-by-step explanation:

The equation for this relationship is:

3+2x=y (x is no. of miles and y is the total cost without tips of course)

The total cost without the tip is 20-1=19.

Plug 19 in for y:

3+2x=19

2x=16

x=8

Hope this helps!

Answer:

d

Step-by-step explanation:

Answer:

( 2, 7)

Step-by-step explanation:

4-(-3)= 2

(-4)-(-6)= 7

Answer:

U=(x+3) and V=7

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

[tex]\frac{10q^5w^7}{2w^3}.\ \frac{4\left(q^6\right)^2}{w^{-5}} =20q^{17}w^9[/tex]

Step-by-step explanation:

Given

[tex]\frac{10q^5w^7}{2w^3}.\ \frac{4\left(q^6\right)^2}{w^{-5}}[/tex]

Required

Determine the equivalent expression

[tex]\frac{10q^5w^7}{2w^3}.\ \frac{4\left(q^6\right)^2}{w^{-5}}[/tex]

Simplify the first fraction

[tex]\frac{5q^5w^7}{w^3}.\ \frac{4\left(q^6\right)^2}{w^{-5}}[/tex]

Apply law of indices on the first fraction;

[tex]5q^5w^{7-3}.\ \frac{4\left(q^6\right)^2}{w^{-5}}[/tex]

[tex]5q^5w^4.\ \frac{4\left(q^6\right)^2}{w^{-5}}[/tex]

[tex]\ \frac{5q^5w^4*4\left(q^6\right)^2}{w^{-5}}[/tex]

Apply law of indices:

[tex]5q^5w^4*4\left(q^6\right)^2 * w^{5}[/tex]

Evaluate the bracket

[tex]5q^5w^4*4 * q^{12} * w^{5}[/tex]

Collect Like Terms

[tex]5*4q^5* q^{12}*w^4 * w^{5}[/tex]

[tex]20q^5* q^{12}*w^4 * w^{5}[/tex]

[tex]20q^{5+12}*w^{4+5}[/tex]

[tex]20q^{17}w^9[/tex]

Hence:

[tex]\frac{10q^5w^7}{2w^3}.\ \frac{4\left(q^6\right)^2}{w^{-5}} =20q^{17}w^9[/tex]

Answer:

x + y + 90 = 180

x = 67

y = 23

Step-by-step explanation:

x + y + 90 = 180

x + 2 = 3y

x + y = 90

x - 3y = -2

      x  +  y = 90

(+)  -x + 3y =  2

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

            4y = 92

y = 23

x + y = 90

x + 23 = 90

x = 67

Answer:

294 or 6

Step-by-step explanation:

if he has 7 bags and 42 marbles in each then the answer will be 294

but if ur tryna say that there are a total of 42 marbles combined, then there are 6 marbles in each bag

An equation is formed of two equal expressions. Luke made a mistake in step 3.

An equation is formed when two equal expressions are equated together with the help of an equal sign '='.

Luke made a mistake in step 3, he needs to cancel (x-4) from the second term of the left side instead of x. Also, (x-4) is needed to be cancelled from the right side. Therefore, step 3 will be,

(x-4) + x = x(x-3)

Hence, Luke made a mistake in step 3.

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Answer:

step  3

Step-by-step explanation:

Plato

Answer:

merry merry christmas :)

and thanks

Step-by-step explanation:

Answer: d/dx [sin(√ex + a /2)]

Answer:

C.

Warning! I might be wrong as I'm not a math teacher. Always double check your answer!

Cheers! :)

Answer:

The coordinates of G' are [tex]G'(x,y) = \left(-\frac{2}{3}, \frac{4}{3} \right)[/tex].

Step-by-step explanation:

From Linear Algebra, we define the dilation of point G by the following expression:

[tex]G'(x,y) = O(x,y) + k\cdot [G(x,y)-O(x,y)][/tex] (1)

Where:

[tex]O(x,y)[/tex] - Center of dilation, dimensionless.

[tex]k[/tex] - Scale factor, dimensionless.

[tex]G(x,y)[/tex] - Coordinates of point G, dimensionless.

[tex]G'(x,y)[/tex] - Coordinates of point G', dimensionless.

If we know that [tex]O(x,y) = (0,0)[/tex], [tex]k = \frac{1}{3}[/tex], [tex]G(x,y) = (-2,4)[/tex], then the point G' is:

[tex]G'(x,y) = (0,0) + \frac{1}{3}\cdot [(-2,4)-(0,0)][/tex]

[tex]G'(x,y) = \left(-\frac{2}{3}, \frac{4}{3} \right)[/tex]

The coordinates of G' are [tex]G'(x,y) = \left(-\frac{2}{3}, \frac{4}{3} \right)[/tex].

Answer:

7,173

x = 7

Step-by-step explanation:

Within the question it gives two examples.

x = 0 corresponds to 2000

x = 1 corresponds to 2001

If you pay close attention the x-value is always the same as the last digits in the year. So with 2007 the last digit is 7, which then leads us to determine that

x = 7

f (x) = -327 (7) + 9462

f (x) = -2289 + 9462 = 7173