a) Expand and simplify.
7(x - 2) - 2(x - 1)
b) Factorise fully.
8x2
+ 6x

Answer:

98

Step-by-step explanation:

147/3=49x2=98

Answer:

195 m

Step-by-step explanation:

first find the area of the whole square (15x15=225) then find the area of the rectangle inside (6x5=30) then subtract 30 from 225 which leaves you with 195

You have to find the area of the little square first, so that's 6 x 5 which is 30. Then find the area of the shaded part. 15 x 15 = 225. Then subtract both numbers. And you'll get "195 m" which is your answer.

Answer:

Hello! Your answer is, A) The arrow pointing to the right

Step-by-step explanation:

Hope I helped! Ask me anything if you have any questions! Brainiest plz! Hope you make an 100% and have a wonderful day! -Amelia♥

Answer:

Step-by-step explanation:

The answer is a

Answer: Angle R is 70 degrees, angle Q is 90 degrees, and the other angle is 19 degrees.

For the missing side I got 9.4

Step-by-step explanation: I got the angles using Tangent and the missing side using the Pythagorean Theorem.

Answer:

838.08 in³

Step-by-step explanation:

volume of tank = (36×24×24)+(½×3.14×12²×24)

= 20,736 + 5,425.92

= 26,161.92 in³

the remaining water = 27,000 - 26,161.92

= 838.08 in³

Answer:

The axis of symetry is the X value that splits the graph in half. For this equation, the axis of symmetry is x= [tex]\frac{3}{2}[/tex].

The vertex is the highest or lowest point on the graph. For this equation, the vertex is [tex](\frac{3}{2} ,\frac{7}{4} )[/tex]

Step-by-step explanation:

See the graph.  please give me brainliest if I helped!

Answer:

Step-by-step explanation:

A and B are non-linear; A is a quadratic and B is a cubic.

The functions y-6=x² and y=2x²+5-3x are non-linear. Therefore, options A and B are the correct answers.

A linear function is a function that represents a straight line on the coordinate plane. The standard form of a linear function is y = mx + b.

Here, 'm' is the slope of the line, 'b' is the y-intercept of the line, 'x' is the independent variable and 'y' (or f(x)) is the dependent variable.

A) y-6=x²

Here, the highest degree is 2.

So, the equation is quadratic.

B) y=2x²+5-3x

Here, the highest degree is 2.

So, the equation is quadratic.

C) y=x

Here, the highest degree is 1.

So, the equation is linear.

D) 2y=1/2 x

Here, the highest degree is 1.

So, the equation is linear.

E) y=1/3 -5x

Here, the highest degree is 1.

So, the equation is linear.

F) y=8+x

Here, the highest degree is 1.

So, the equation is linear.

Therefore, options A and B are the correct answers.

To learn more about the linear function visit:

https://brainly.com/question/17058347.

#SPJ2

Answer:

Negative integers

Step-by-step explanation:

Answer:

[tex]y = 2x - 5[/tex]

Substitute the value of y as 2x - 5 in the equation.

[tex]5x - 4y = - 10 \\ 5x - 4(2x - 5) = - 10 \\ 5x - 8x + 20 = - 10 \\ 5x - 8x = - 10 - 20 \\ - 3x = - 30 \\ x = \frac{ - 30}{ - 3} \\ x = 10[/tex]

Now, find the value of y

[tex]y = 2x - 5 \\ y = 2(10) - 5 \\ y = 20 - 5 \\ y = 15[/tex]

⎇ x = x = x, equals 10

⎇ y = y = y, equals 15

Answer:

if y = 2x-5

then in the second equation we can find the value of x

5x-4(2x-5) = -10

5x-8x+20 = -10

-3x = -30

x = 10

then the value of y = 20-5 = 15

therefore the value of x = 10 and y =15 (ans)

Hope it helps

Answer:

1. 26

2. 154

3. 26

4. 26

5. 154

6. 154

7. 26

Step-by-step explanation:

1 = 26°

2 = 154°

3 = 26°

4 = 26°

5 = 154°

6 = 154°

7 = 26°

Answer:

2n

Step-by-step explanation:

2 x 1 = 2

2 x 2 = 4

.......

2 x 5 = 10

Find the difference between the terms. e.g 4 - 2 = 2, then times it by n for the expression

Answer: B. 20

Step-by-step explanation: 1/5 of 25 is 5 and 5 of those are red so 25-5=20

Answer:

B

Step-by-step explanation:

20 of the cards are different colors than red because 1/5 of 25 is 5

Answer:

80

Step-by-step explanation:

Answer:

30 degree

Step-by-step explanation:

because it is parallel to m1=30

Answer:

24

Step-by-step explanation:

x^2+y^3

(4)^2+(2)^3

(4)(4)+(2)(2)(2)

16+8=24

The answer is 6x^2. To find this, just find the greatest factor of each question, aka the greatest "common" factor (GCF), of both since it is the greatest factor they each have in common. Hope this helps!

Answer:

40 is the answer

hope this helps

have a good day :)

Step-by-step explanation:

Answer: I never had this type of question before but try -21

Step-by-step explanation:

I assume -21 because that’s the total amount of yards lost. But I don’t know

Answer:

$38.80

Step-by-step explanation:

The full price of the pole may be written as 1.00($97), or $97.00.

The discount was 0.60($97), or $58.20.  Subtracting this from the full price yields the sale price:  $97.00 - $58.20 = $38.80.

1.04($38.80) results in the price Alfredo paid for the pole:  $40.35.  Note that the '1' corresponds to 'price before tax' and that the '.04' corresponds to the 4% tax.

Answer:

The answer would be b this is because i did the math and i got 5 yards

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Answer:

12467 x 1209 = 15,072,603

Step-by-step explanation:

You can always use a calculator to check your answers!

If this helped, please give it brainliest!

Answer:

15072603

Step-by-step explanation:

hope this helps :)

Answer:

V=95 in3

Step-by-step explanation:

Answer

[tex]3^{7y} * 81^{8y} * 3^9 * 27^{-9y} = 3^{7y} * (3^4)^{8y} * 3^9 *(3^3)^{-9y}[/tex]          

                                [tex]=3^{7y} * (3)^{32y} * 3^9 *(3)^{-27y}\\\\=3^{7y +32y +9 -27y}\\\\=3^{12y+9}[/tex]

Tip :    

[tex]\frac{1}{27^{9y}} = 27^{-9y} = (3^3)^{-9y} = 3^{-27y}[/tex]                          

Answer:

[tex]3^{12y+9}[/tex]

Step-by-step explanation:

→ Convert all integers to base 3

[tex]3^{7y} *3^{4*8y}*3^{9} /3^{3*9y}[/tex]

→ Simplify

[tex]3^{7y}*3^{32y} *3^{9} /3^{27y}[/tex]

→ Collect all the like terms

[tex]3^{12y+9}[/tex]

Answer:

You Answer is C. 738

Step-by-step explanation:

L x W x H

A= 2 w  l   h  l  h  w  = 2  18 13.5 4  13.5 4 18  =  738

Answer:

answer is 2/6

becoz 2/6=0.3333333333 which is repeating or recurring decimal

Step-by-step explanation:

Answer:

8/10

Step-by-step explanation:

Answer:

Step-by-step explanation:

We can see that we need to plug in 2 for x in the first equation

We can also see that when x=2 we need to use the second part of the piecewise (because this one works when x is greater than or equal to 2)

so we have

3*(4*2+1)= 27

for g(x) we need to plug in x=1

we use the first piecewise equation because it's valid when x is less than 3

4(1²+2)=12

take their sum 27+12= 39

Answer:

39

Step-by-step explanation:

Answer:

2nd: 2

4th: -4

11th: -25

Step-by-step explanation:

When you substitute a number into the equation you get that number term. So, if you substituted in 1, you get the first term. To find the second term, you substitute in 2:

A(2) = 5 + (2 - 1)(-3)

A(2) = 5 + (1)(-3)

A(2) = 5 - 3

A(2) = 2

To get the 4th term you substitute in 4:

A(4) = 5 + (4 - 1)(-3)

A(4) = 5 + (3)(-3)

A(4) = 5 - 9

A(4) = -4

And we do the same for the 11th term:

A(11) = 5 + (11 - 1)(-3)

A(11) = 5 + (10)(-3)

A(11) = 5 - 30

A(11) = -25