please help and explain these two problesm

-2a + 4 (a - b ) + 5b

x + 3 + 5 (x - 3)

Answer:

Vertical line that passes over 1 the x axis. (No y-intercept)

Step-by-step explanation:

Answer: Heyy BFF The Answer is x= -8 or x=10

Step-by-step explanation: Stay Sliving ❤️

Answer:

I donot know

Step-by-step explanation:

l donot know you are question

Answer:

18 and 21

Step-by-step explanation:

Answer:

[tex] {x}^{2} - 8x + 15 \\ (x - 5)(x - 3)[/tex]

I hope I helped you^_^

Answer:

(x-5) (x-3)

Step-by-step explanation:

At first find two numbers, that if you multiply, you get +15x², and the same number, if you do addition, get -8x

Those numbers are: -5x and -3x.

Now replace the -8x with the -5x and -3x. (x² - 5x - 3x + 15)

Now factorise as normal. You should get (x-5) and (x-3)

Hope I helped!

Answer:

x means 10 sooooo

Step-by-step explanation:

hope it helps

Answer:

B= 180-63

= 117°

E= 117°

Alternating angles are equal

Multiply the roots of the first and third terms together. Compare to the middle terms with the result in step two. If the first and last terms are perfect squares, and the middle term's coefficient is twice the product of the square roots of the first and last terms, then the expression is a perfect square trinomial.

Answer:

$382.5

Step-by-step explanation:

Answer:

from 0 to t1

Airplane A travels at a speed that is increasing.

Airplane B travels at a speed that is constant but not 0.

from t1 to t2

Airplane A travels at a speed that is  constant, but not 0

Airplane B travels at a speed that is  0.

The airplane A is travelling at a faster and faster rate from 0 to t₁, and airplane B moves at a steady but not zero speed from 0 to t₁

A line graph is a graph made up of segments of straight lines that connect the depicted data points.

We have a graph for Airplane A shows the speed at which it travels as a function of time. The graph for Airplane B shows the distance it travels as a function of time.

From the graph A and B

From 0 to [tex]\rm t_1[/tex]

Airplane A is travelling at a faster and faster rate.

Airplane B moves at a steady but not zero speed.

From [tex]\rm t_1[/tex] to [tex]\rm t_2[/tex]

Airplane A moves at a constant speed, but not at zero.

Airplane B is travelling at a speed of 0.

Thus, the airplane A is travelling at a faster and faster rate from 0 to t₁, and airplane B moves at a steady but not zero speed from 0 to t₁

Learn more about the line chart here:

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Answer:

The answer is 70%

Hope it helps <333

Step-by-step explanation:

Answer:

• Let's first assign identifications to the equations given:

[tex]{ \rm{8x + 9y = {}^{ - }3 \: - - - \{equation \: (a) \} }} \\ { \rm{6x + 7y = 1 - - - \{equation \: (b) \}}} \\ [/tex]

• There are various methods to solve this system of equation, namely;

1. Graphical method

→ You'll have to draw a graph, demacate it very well following the suitable scale.

→ Get values to plot from both equation (a) and equation (b).

→ Draw respective lines of each equation. The point of intersection of the lines is the answer of the values of x and y.

→ It'll be in coordinate format i.e; (x, y)

2. Substitution method

→ Lemme first consider equation (a)

[tex]{ \rm{8x + 9y = {}^{ - }3 }}[/tex]

• make x the subject of the equation (a):

[tex]{ \rm{8x = - 3 - 9y}} \\ \\ { \rm{x = \frac{ - 3}{8} - \frac{9}{8}y }} \: { \rm{- - - \{equation \: (c)}} \}[/tex]

→ Considering equation (b) next

[tex]{ \rm{6x + 7y = 1}}[/tex]

• substitute x in equation (b) with x in equation (c)

[tex]{ \rm{6( \frac{ - 3}{8} - \frac{9}{8}y ) + 7y = 1 }} \\ \\ { \rm{ - \frac{9}{4} - \frac{27}{4} y + 7y = 1}} \\ \\ { \rm{ \frac{1}{4} y = \frac{13}{4} }} \\ \\ { \underline{ \rm{ \: \: y = 13 \: \: }}}[/tex]

• then find x using equation (c)

[tex]{ \rm{x = \frac{ - 3}{8} - \frac{9}{8} y }} \\ \\ { \rm{x = \frac{ - 3}{8} - \frac{9}{8} (13)}} \\ \\ { \underline{ \rm{ \: \: x = - 15 \: \: }}}[/tex]

3. Elimination method:

→ Here, we have to align the equations so that if we use addition or subtraction operations we remain with one term giving us zero [ eliminated ]

→ Multiply equation (a) by 6 and multiply equation (b) by 8. In order to eliminate x

→ Then we subtract equation (a) with equation (b)

[tex]{ \underline{ \rm{ - \binom{6(8x + 9y = - 3)}{8(6x + 7y = 1)} }}} \\ { \rm{ 0x \: - 2y = - 26 }} \\ \\ { \rm{ - 2y = - 26}} \\ \\ { \underline{ \rm{ \: \: y = 13 \: \: }}}[/tex]

• find x using equation (c)

[tex]{ \rm{x = \frac{ - 3}{8} - \frac{9}{8} y}} \\ \\ { \underline{ \rm{ \: \: x = - 15 \: \: }}}[/tex]

4. Calculator synthetic method:

→ To use this method, you must have a scientific calculator.

→ If you have it, follow the steps below;

Answer: x = -15, y = 13

The area of a shape is the amount of space it occupies.

The area of the garden is 529.2 square feet

The given parameters are:

Shape: Rectangle

Dimension: 21ft by 25.2ft

The area of a rectangle is:

[tex]\mathbf{Area = Length \times Width}[/tex]

So, we have:

[tex]\mathbf{Area = 21 \times 25.2}[/tex]

[tex]\mathbf{Area = 529.2}[/tex]

Hence, the area of the garden is 529.2 square feet

Read more about areas at:

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Answer:

2, 4, 6, 8, 10

Step-by-step explanation:

Answer:

18

Step-by-step explanation:

Let the number be x.

1/3 of itself is 1/3 x or x/3.

x = x/3 + 12

3x/3 - x/3 = 12

2x/3 = 12

3/2 * 2x/3 = 3/2 * 12

x = 18

Answer: 18

The equation is formed as x - x/3 = 12. Then the solution of the equation will be 18.

The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.

The definition of simplicity is making something simpler to achieve or grasp while also making it a little less difficult.

The number is 12 more than 1/3 of itself.

Let the number be 'x'. Then the equation is written as,

x = x/3 + 12

Simplify the equation, then the value of 'x' will be calculated as,

x - x/3 = 12

3x - x = 36

2x = 36

x = 36/2

x = 18

The equation is formed as x - x/3 = 12. Then the solution of the equation will be 18.

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Answer:

The range of x is -5 to +3

Step-by-step explanation:

Answer:

range means the value the x produces.

The range is -8 to zero.

Happy Learning

Answer:

-4

Step-by-step explanation:

the highest f(x) value on the table is at -4 on the x column

Answer:

hello again

Step-by-step explanation:

i think so,

hope it helped

Answer:

lx-24l ≤ 8

Step-by-step explanation:

lx-24l ≤ 8

x ≤ 8 + 24

x ≤ 32

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

-x + 24 ≤ 8

24 - 8 ≤ x

16 ≤ x

The absolute value equation that represents the minimum and maximum lengths is 8 = |x - 24|.

Absolute value is defined as the magnitude or size of a number, no negatives are allowed. The distance a number is from 0 on the number line is known as the absolute value of the number.  

For example, |5| is 5 because it is 5 units away from 0.  Also, |-5| is also 5 because -5 is 5 units from 0.

We have been given that for a poetry contest the minimum length of a poem is 16 lines. The maximum length is 32 lines.

To determine the absolute value equation that represents the minimum and maximum lengths.

First,  we need to find the difference between both solutions.

⇒ 32 - 16 = 16

Then, divide it by 2.

⇒ 16/2 = 8

⇒ 8 = |x - 32 + 8|

we could also write: 8 = |x - 32 + 8|

⇒ 8 = |x - 24|

Therefore, the absolute value equation that represents the minimum and maximum lengths is 8 = |x - 24|.

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Answer:

50

Step-by-step explanation:

Sum of angles in a circle is 360,

145 + 165 + x = 360

310 + x = 360

x = 360 - 310

x = 50

Step-by-step explanation:

There is infinitely many ratios which are equivalent to 5:9. As we know always we can write divide as fraction, so . We can multiply nominator and denominator by the any number (but the same) and get another numbers but ratio will be the same, so equivalent.

For example

10:18,

15:27

Hope this helps.

Answer:

10:18

Step-by-step explanation:

Anything really just times both sides by the same number.

For example to get to 10:18 I multiplied both sides of 5:9 by 2.

If you were to multiply 5:9 by 3 (which would 15: 27) it would still be an equivalent to 5:9.

Answer:

A.

Step-by-step explanation:

carry on learning.. and start reading your modules so u can learn <3

brainliest and follow please

Answer:

Step-by-step explanation:

Bro i dont know

Answer:

25%

Step-by-step explanation:

Answer:

27%

Step-by-step explanation:

It was reduced by 27% because you get the 60 as 100% and 45 as 75% and you’ll get your answer.

Answer:

the answer is 3,680

Step-by-step explanation:

Answer:  It depends on the weight of an apple.  If 1 apple = 0.50 lb, then 1 apple costs $0.25

Step-by-step explanation:

We need to know the weight of one apple.  If one apple weighed 0.5 lb, on the average, then:

($0.50/lb)*(0.5 lb/apple) = $0.25/apple