Work the value if each expression when a=2, b = -3, c=4 and d= -5.

a) a +2b b) bd -10 c ) 4b+ 2a d) ab+cd e) cd²+ab f) d/2 - a g) 20-a²
h) bc/a d

*Sorry its so long, I need to understand it for class.*

Answer:

i forgot what it was sorry

Step-by-step explanation:

Answer:

4x+36

-6x+12

Step-by-step explanation:

Answer:

114. There is something wrong with the options im 100% sure its 114 talk to your teacher.

The solution is just to substitute

Answer: x=5/6

Step-by-step explanation:

2x + 1/3 = 2

(2x + 1/3 = 2)*3

6x+1=6

6x=5

x=5/6

Answer:

$4.84

Step-by-step explanation:

Answer:

Good.

Step-by-step explanation:

Answer:

This looks really good to me!

Answer:

AL=2πrh

Step - by - step explanation:

Answer:

276.5

Step-by-step explanation:

The formula for the lateral surface area of a cylinder:2 times 3.14 times radius times height

Answer:

x2√x

Step-by-step explanation:

Simplify the radical by breaking the radicand up into a product of known factors, assuming positive real numbers.

Answer:

d divided by 10

Step-by-step explanation:

Answer:

1/2

Step-by-step explanation:

remember that the formula for the slope of a line is

[tex]m=\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

where m is the slope, and the x and y variables are the x-y coordinates of two points. Choose two points on the line:

Point 1 : (-1,3) and Point 2 : (1,4)

Plug in your values:

[tex]m=\frac{4-3}{1-(-1)}[/tex]

[tex]m=\frac{1}{2} \\[/tex]

So the slope of this line is 1/2 !

Answer: The slope is [tex]\frac{1}{2}[/tex].

Here is a visual explanation when you use a graph instead of ordered pairs:

Answer:

-1/2

Step-by-step explanation:

You replace F(x) with 7, so

7=-2x+6

1=-2x  <--- subtract by 6

-1/2=x  <---- divide by -2

Null hypothesis is stated as H0: Sunflower seeds planted in well-drained soil will grow faster than sunflower seeds planted in wet soil.

Null hypothesis is defined as the hypothesis that stated that there is no relationship between the two population parameters. It is denoted by H0

To form the null hypothesis we take it as

   Null hypothesis : The sample data provides no evidence to support some claim being made by an individual.

Thus according to the question the null hypothesis can be stated as

 Null hypothesis, h0 : Sunflower seeds planted in well-drained soil will grow faster than sunflower seeds planted in wet soil.

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Answer:

D. x²+6x+9

Step-by-step explanation:

(x + 3)² = (x + 3)(x + 3)

= x² + 3x + 3x + 9

= x² + 6x + 9

follow my account ^^

Answer:

D.) just took the Unit Session

Step-by-step explanation:

The total number of tickets sold by the Houston Astros for an entire season of home games is 2,980,476.

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Answer:

42

Step-by-step explanation:

6 × 7 = 42

Brainliest Please!!

- Hermionia

Answer: x  = 5

Step-by-step explanation:

using pythagorean theorem

a^2   + b^2  = c^2

x^2  + 12^2  = 13^2

x^2  + 144 = 169

x^2 = 169 - 144

x^2 = 25

find the square root of 25

x = 5

The total number of tickets given away is 280

To do this, we make use of the following representations:

From the question, we have the following equations:

a = 20 + c --- 20 more adult than children

s = 3a ---- 3 times as many senior as adult

c = 40 --- number of children tickets

Substitute c = 40 in a = 20 + c

a = 20 + 40

a = 60

Substitute a = 60 in s = 3a

s = 3 * 60

s = 180

The total number of tickets is:

Total = a + c + s

This gives

Total = 60 + 40 + 180

Evaluate

Total = 280

Hence, the total number of tickets given away is 280

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Answer:

0

Step-by-step Explanation

[tex]y = 20x \\ \\ y = 20x + 0 \\ \\ equating \: it \: with \\ y = mx + b \\ \\ b = 0 \\ \\ y - intercept \: = 0[/tex]

Answer:

D. x=3

Step-by-step explanation:

The value of [tex]y[/tex] will be [tex]4\sqrt{3}[/tex] .

Triangle is a three sides two dimensional surface having three angles.

We have,

[tex]\triangle MRN[/tex] , [tex]\triangle RSM[/tex] and [tex]\triangle RSN[/tex],

And, [tex]NS =6,\ SM=2,\ RM=x,\ NR=y,\ RS=z[/tex]

Now,

We have right angle [tex]\triangle MRN[/tex],

Using Pythagoras theorem,

[tex]x^2+y^2=8^2[/tex]

[tex]x^2+y^2+=64\[/tex]     [tex].....(i)[/tex]

Now, We have right angle [tex]\triangle RSN[/tex],

Again Using Pythagoras theorem,

[tex]z^2+6^2=y^2[/tex]

⇒[tex]z^2=y^2-36[/tex]     [tex].....(ii)[/tex]

Now, We have right angle [tex]\triangle RSM[/tex],

Again Using Pythagoras theorem,

[tex]z^2+2^2=y^2[/tex]

⇒[tex]z^2=x^2-4[/tex]     [tex].....(iii)[/tex]

Now comparing equation [tex](ii)[/tex] and equation  [tex](iii)[/tex],

We get,

[tex]x^2-4=y^2-36[/tex]

We get,

[tex]x^2-y^2=-36+4[/tex]

[tex]x^2-y^2=-32[/tex]     [tex].....(iv)[/tex]

Now,

Adding equation [tex](i)[/tex] and equation  [tex](iv)[/tex], i.e.

[tex]x^2+y^2+=64[/tex]

[tex]x^2-y^2=-32[/tex]

We get,

[tex]2y^2=96[/tex]

[tex]y^2=48[/tex]

[tex]y=\sqrt{48}[/tex]

[tex]y=4\sqrt{3}[/tex]

So, the value of [tex]y[/tex] is [tex]4\sqrt{3}[/tex]

Hence, we can say that the value of [tex]y[/tex] will be [tex]4\sqrt{3}[/tex]  which is given in option (b).

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Answer:

its c

Step-by-step explanation:

taking test rn

Answer:

i think its 22c

Step-by-step explanation:

Answer:

Step-by-step explanation:

[tex]14 + 19 = - 9c - 2c[/tex]

Simplify

[tex]33 = - 11c[/tex]

Divide both sides by -11

[tex] \frac{33}{ - 11} = \frac{ - 11c}{ - 11} [/tex]

Simplify

[tex] - 3 = c[/tex]

c = -3

Step-by-step explanation:

RS bisects PQ at T. PQ bisects RS at T.

prove: Triangle PTS congruent Triangle QTR

(1) RS bisects PQ at T.................(1) Given

(2) PQ bisects RS at T.................(2) Given

(3) angle PST ≅ angle QRT........(3) supplements of congruent angles

(4) TS ≅ TR......................(4) Converse of Base Angles Theorem

(5) angle PTS ≅ angle QTR.........(5) Subtraction Property of Equality

(6) Triangle PTS ≅ Triangle QTR...(6) Angle side angle

Hope it's help you..... ^_^❤️

Answer:

102336

Step-by-step explanation:

Im bored

Answer:

Hi, my name is Kasey. Are you talking about me??

Step-by-step explanation:

Answer:

The slopes of line segments AC and AD are same or constant i.e [tex]\frac{1}{3}[/tex]

Step-by-step explanation:

We need to find slopes of AC and AD and tell if they are same or not.

The formula used to calculate slope is: [tex]Slope=\frac{y_2-y_1}{x_2-x_1}[/tex]

Finding slope of AC

We have A=(3,2) and C=(0,1)

Finding slope using formula:

We have [tex]x_1=3, y_1=2, x_2=0,y_2=1[/tex]

[tex]Slope=\frac{y_2-y_1}{x_2-x_1}\\Slope=\frac{1-2}{0-3}\\Slope=\frac{-1}{-3}\\Slope=\frac{1}{3}[/tex]

So, Slope of AC is [tex]\frac{1}{3}[/tex]

Finding slope of AD

We have A=(3,2) and C=(9,4)

Finding slope using formula:

We have [tex]x_1=3, y_1=2, x_2=9,y_2=4[/tex]

[tex]Slope=\frac{y_2-y_1}{x_2-x_1}\\Slope=\frac{4-2}{9-3}\\Slope=\frac{2}{6}\\Slope=\frac{1}{3}[/tex]

So, Slope of AD is [tex]\frac{1}{3}[/tex]

So, the slopes of line segments AC and AD are same or constant i.e [tex]\frac{1}{3}[/tex]

because the question said they are all positive numbers and if it has the sign of minus and minus is a negative sign.

Answer:

$18

Step-by-step explanation:

Sales price of each ostrich egg = $2

Sales price of each goose egg = $0.50

Amount spent after every dollar earned = $0.10

Number of ostrich eggs sold = 5

Number of goose eggs sold = 20

To find:

Total money left after the feeds are bought?

Solution:

First of all, let us find the total money earned by Samantha.

Money earned by selling ostrich eggs = [tex]2\times 5[/tex] = $10

Money earned by selling goose eggs = [tex]20\times 0.50[/tex] = $10

Total money earned by selling both the eggs = 10+10 = $20

Money spent on feeding on every $1 = $0.10

Money spent on feeding on every $20 = 0.10 [tex]\times[/tex] 20 = $2

Total money left after buying feeds = $20 - $2 = $18