Applications: Systems of Linear Equations i need help

Answer:

4.81 m

Step-by-step explanation:

area of Equilateral triangle with side length a : area = (√3/4) a²

10 = (√3/4) a²

a² = 40√3 / 3 = 23.09

a = 4.81 m

if you are in Trigonometry: h/a = sin 60°

h = (√3 / 2) a

Answer:

I think this is the answer! 2x3 + 5x2 - x - 6 let me know if it’s right :)

Step-by-step explanation:

Answer:

20$

Step-by-step explanation:

assume x being the bill

x * 15/100 = 3

x = 3 *100/15 = 20

Answer:

It's the option C. y = (x +1)(x +1)

The image of the parallelogram which is larger than the preimage,

indicates that the scale factor is larger than 1.

Correct response:

The scale factor is found by finding the ratio of the corresponding sides.

The possible given diagram in the question is a parallelogram FGHJ

dilated to form the similar parallelogram, F'G'H'J'.

The length of side FG = -2 - (-4) = 2

The length of side F'G' = 3 - (-5) = 8

Which gives;

[tex]The \ scale \ factor = \dfrac{8}{2} = 4[/tex]

Learn more about scale factor of dilation here:

https://brainly.com/question/11356766

Answer:

C) 4

Step-by-step explanation:

Answer:

33 1/3

Step-by-step explanation:

Since 20 is double the amuont of 10 then Han's distance will be 2/3 of 1000 feet which is 666 2/3 and Clare would travel the rest (333 1/3) then you have to divide one of those big numbers (lets do 333 1/3) by there paired number (10). 333 1/3 / 10 = 33.3333 or 33 1/3

Kind Note:

I did not provide a picture. Instead, I provided explanation for your answer. If you really want a picture for your answer, I will provide it for you.

Step-by-step explanation:

We know that:

Work:

Answer:

Let that be x

Children tickets =50

Answer:

center point: (-4, 2)

radius: 8 units

Step-by-step explanation:

To find the radius of a figure in a coordinate plane, you have to do x-y where x is the starting point and y is the ending point. so in this case:

-4-(-12)

= -4+12

= 8

Answer:

center point: (-4, 2)

radius: 8 units

Step-by-step explanation:

abc

Answer:

See below

Step-by-step explanation:

The difference of square rules is [tex]a^2-b^2=(a+b)(a-b)[/tex], but given that the expression is [tex](x+5)(x+5)[/tex] and not [tex](x+5)(x-5)[/tex], it doesn't follow this rule.

Answer:

2.4 feet long

Step-by-step explanation:

12/5, 12 feet long divided by 5 feet

Answer:

2.4

Step-by-step explanation:

You would divide the 12 by 5 because you need 5 pieces that are equal

Answer:

-1

Step-by-step explanation:

The average rate of change of f(x) in the closed interval [ a, b ] is

Here [ a, b ] = [ - 6, 6 ]

From the graph

f(b) = f(6) = - 2

f(a) = f(- 6) = 10 , thus

average rate of change =  =  = - 1

Using a system of equations, it is found that 22 flowers are in George's garden.

In this problem, the variables are:

All the flowers are red except 14, that is, there are 14 that are blue or yellow, hence:

[tex]y + z = 14 \rightarrow z = 14 - y[/tex]

All are blue except 18, that is, there are 18 that are red or yellow, hence:

[tex]x + z = 18 \rightarrow z = 18 - x[/tex]

All are yellow except 12, that is, there are 12 that are red or blue, hence:

[tex]x + y = 12 \rightarrow y = 12 - x[/tex]

From the first two equations:

[tex]14 - y = 18 - x[/tex]

[tex]x - y = 4[/tex]

Since [tex]y = 12 - x[/tex]

[tex]x - 12 + x = 4[/tex]

[tex]2x = 16[/tex]

[tex]x = 8[/tex]

[tex]y = 12 - x = 12 - 8 = 4[/tex]

[tex]z = 18 - x = 18 - 8 = 10[/tex]

The total amount of flowers in the garden is:

[tex]x + y + z = 8 + 4 + 10 = 22[/tex]

To learn more about system of equations, you can take a look at https://brainly.com/question/24342899

Answer:

46.8 to 4 needs to be turned into a unit rate

46.8 divided by 4 = 11.7

4 divided by 4 = 1

11.7/1

11.7 miles in one hour

Step-by-step explanation:

Answer:

ok thanks for being here

Step-by-step explanation:

Answer:

SEE ATTACHED PIC

Step-by-step explanation:

[tex]~~~~~~~~~~~~\textit{distance between 2 points} \\\\ A(\stackrel{x_1}{-7}~,~\stackrel{y_1}{5})\qquad B(\stackrel{x_2}{4}~,~\stackrel{y_2}{-9})\qquad \qquad d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2} \\\\\\ AB=\sqrt{[4 - (-7)]^2 + [-9 - 5]^2}\implies AB=\sqrt{(4+7)^2+(-14)^2} \\\\\\ AB=\sqrt{121+196}\implies AB=\sqrt{317}[/tex]

Answer: 2x^2+x-2+4/(2x-1)

Step-by-step explanation:

                         22

Answer: 2a-6+--------------​

​                             a+4

Step-by-step explanation:

with the long-division set-up:

long-division set-up

Looking only at the leading terms, I divide 3x3 by 3x to get x2. This is what I put on top:

x^2 up on top

I multiply this x2 by the 3x + 1 to get 3x3 + 1x2, which I put underneath:

3x^3 + 3x put down underneath the dividend

Then I change the signs, add down, and remember to carry down the "+10x – 3" from the original dividend, giving me a new bottom line of –6x2 + 10x – 3:

(3x^3 – 5x^2 + 10x – 3) – (3x^3 + 1x^2) = –6x^2 + 10x – 3

Dividing the new leading term, –6x2, by the divisor's leading term, 3x, I get –2x, so I put this on top:

(–6x^2) ÷ (3x) = –2x, which goes on top

Then I multiply –2x by 3x + 1 to get –6x2 – 2x, which I put underneath. I change signs, add down, and remember to carry down the "–3 from the dividend:

(–6x^2 + 10x –3) – (–6x^2 – 2x) = 12x – 3, which is my new last line

My new last line is "12x – 3. Dividing the new leading term of 12x by the divisor's leading term of 3x, I get +4, which I put on top. I multiply 4 by 3x + 1 to get 12x + 4. I switch signs and add down. I end up with a remainder of –

Answer:

a = 105 degrees

Step-by-step explanation:

straight line = 180 degrees

180 - 140 = 40 degrees

180 - 145 = 35 degrees

total angles of triangle = 180 degrees

a + 40 + 35 = 180

a + 75 = 180

a = 105 degrees

Answer:

a = 105°

Step-by-step explanation:

Use the supplements of the angles near A and B.

180 - 140 = 40

The interior angle near A measures 40°.

180 - 145 = 35

The interior angle near B measures 35°

Now use the sum of the measures of the angles of a triangle:

The sum of the measures of the interior angles of a triangle is 180°

a + 40 + 35 = 180

a + 75 = 180

a = 105

Answer:

f(-2/3)=-1

Step-by-step explanation:

f(x)=3x+1  

f(-2/3)=3*(-2/3)+1

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

f(-2/3)=-1

Answer:

Step-by-step explanation: -

Answer:

Yes, it is possible without brackets

Step-by-step explanation:

First do 2+3 to give yourself another 5

then times this 5 by the original one to get 25

Finally, times the 25 by 4 to get 100

Hope this helps you :)

Answer:

well thats ez its 1+9=10 10x8=80 then do 5x4=20 then add 80+20=100!

Step-by-step explanation:

pls give me brainliest

ANswer:

1+9=10x8=80(5x4=20) 80+20=100

3x = 6y + 21

6y + 21 - 2y = 3

4y + 21 = 3

4y = -18

y = - 4.5

x = - 2

( -2, -4.5 )

please give brainliest

Answer:

C. Acute

Step-by-step explanation:

Well since it is under a right triangle then it'd make it acute!

Hope this helps! Please mark bainliest  :)

Answer:

Option C) an Acute Angle

explanation:

The given angle is less than 90°, and any angle less than 90° or smaller than a right angle is called an Acute Angle.

hope that helps...

Answer:

312x12 or [tex]2^{5} *3^{2}*13[/tex]

is 3744

Step-by-step explanation:

Answer:

3 3/4

Step-by-step explanation:

3 x 1 = 3

3 x 1/4 = 3/4

3 + 3/4 = 3 3/4

[tex]0.7 \times {10}^{12} \: is \: the \: answer \: for \: the \: question[/tex]

Step-by-step explanation:

please mark me as brainlest

85% is the same as 85/100.

85/100 means you can take a 5 out.

17/20 is completely simplified.

Hope this helps!

Answer: 17/20

Answer:

isosceles triangle

Step-by-step explanation:

An isosceles triangle is a triangle that has 2 sides of equal length. This triangle has 2 sides of length (CB and CD). The reason this is not an equilateral triangle is because side BD is 10 units long where the others are 8 units long.  

Based on the number of people who chose the other fruits, the percentage of people who chose pears was 25%.

= Number of participants - Number who chose apples - Number who chose oranges

= 60 - 28 - 17

= 15 people

= Number of people who chose pears / Total number of people x 100%

= 15 / 60 x 100%

= 25%

In conclusion, 25% chose pears.

Find out more on percentages at https://brainly.com/question/13516343.