Which statement about this system of equations is true?

Answer:

-1 and -1

Step-by-step explanation:

-1*-1= 1 and -1+-1=-2

Answer:

[tex] \fbox{x = 4.2} [/tex]

Explanation:

Using the pythangorean theorem

[a² + b² = c²], we can solve enough sides to find the proportion because both triangles are right triangles or have a 90° right angle.

Given the lengths of side a and c (the hypotenuse), we can rearrange the pythangorean theorem to solve for b.

a² + b² = c² → a² – a² + b² = c² – a² →

b² = c² – a² → b = √(c² – a²).

We are also given the hypotenuse or the side c of both triangle which are 5 to 7, which is the proportion between the triangles. We also know they are similar because they have one congruent angle and a right angle, thus the third angle must be the same. Therefore the bigger triangle has sides that are 7/5 longer than the smaller triangle. So b of the smaller triangle = √(5² – 4²) = √(25 – 16) = √9 = 3.

Now we know the sides of the smaller triangle:

a = 3

b = 4

c = 5

______

Now the only thing we have to do is match the corresponding sides, and multiply by 7/5.

This means that the sides of the bigger triangle are:

a = 3 × 7/5 = 21/5 = 4.2

b = 4 × 7/5 = 28/5 = 5.6

c = 5 × 7/5 = 7

______________

Each angle corresponds to the side opposite or across from it. Since side a is across from the congruent pair of angles we are given, the a of the bigger triangle must be x which means that x = a = 4.2.

Answer:

a then b then c

Braden should sample the ducks on each pond at the same time of day because animals are active at different times.

Braden should sample twice at each pond if he wants to make sure each sample is representative of the population.

Braden should count more than Mallard ducks on Brook’s Pond if he wants to compare the types of ducks on each pond.

Step-by-step explanation:

Answer:

a b c

Step-by-step explanation:

Answer:

the new temputare is 5

Step-by-step explanation:

if you add -10+15 you get 5

Answer:

-20 dawg

Step-by-step explanation:

hook it up w a brainliest for all my hard efforts

Answer:

jdiejrkduebrhfjdidudjdidudheisuydudud

Step-by-step explanation:

ieejknhsjd

dhsjeuedieiwjwuejxofi 36

Answer:

Well, the y axis is the up and down line of the graph. Therefore, if the translation says move up six, simply add six to the y axis (ex. -6, -10 move up six: -6, -4)! super simple, right? hope this helps!

Answer:

60  minutes and 70 minutes respectively

Step-by-step explanation:

Step one:

given data

We are given that Dionne can fold 175 packing boxes in 50 minutes and

Elias can fold 120 packing boxes in 40 minutes

let us find the unit rate of each of them

For Dionne

= 175/50

=3.5 boxed per minute

For Elias

= 120/40

=3 boxed per minute

Step two:

Hence,  each person will fold 210 packing boxes in

For Dionne

= 210/3.5

=60  minutes

For Elias

= 210/3

=70  minutes

Answer:

12x³ - 3x

Step-by-step explanation:

Given

f(x) = x and g(x) = 4x² - 1

Now,

3 f(x) * g(x)

= 3 * x (4x² - 1)

= 3x ( 4x² - 1 )

= 12x³ - 3x

Hope it will help :)

Answer:

48+12usudududjdhdhdhsjdhxvdbxbx

Answer:

Find an answer to your question Evaluate the expression below when x = 4 and y = 4. 6x2 ___ y3.

Step-by-step explanation:

Answer:

x=-6

................last one is correct

Answer:

Area of hotub =   27 meters² Dimensions should be 5.2meters each

Step-by-step explanation:

Answer:

yes there is a soulutuon, all you have to do is add the =2x and the 3x and subtract 3 from the 2, then subtract the x from each side (x count as 1) subrtace than and you are done. then the points you get add them to the grapg and you should be done

Step-by-step explanation:

Answer:

1. take the two to the minus sighn then put it where -3 is at.

2. take the three not minus just regular then take it to the right for +2.

Step-by-step explanation:

Thanks for brainlest.

Answer:

0 People initially had the cold.

6 People will have it after 2 days.

Step-by-step explanation:

To find out how many people had it initially, plug 0 in for x (implying 0 days later.)

C= 1*3(0)

C= 1*0

C=0

Nobody had the cold initially.

To find out how many people had it after 2 days, plug 2 in for x. (implying 2 days later.)

C= 1*3(2)

C= 1*6

C=6

Therefore 6 people had the cold after 2 days.

I hope this helps!

Answer:

[tex] \boxed { - 4}[/tex]

Step-by-step explanation:

Substitute y = x-4 in the first equation.

[tex]3x - 2(x - 4) = 4[/tex]

Distribute -2 in the expression.

[tex]3x - 2x + 8 = 4 \\ x = 4 - 8 \\ x = - 4[/tex]

Because we only want to find the value of x.

Therefore the answer is -4.

Answer:

Step-by-step explanation:

Dame tu cosita ah ah

Dame tu cosita ah, ay

Dame tu cosita ah ah

Dame tu cosita ah, ay

Dame tu cosita ah ah

Dame tu cosita ah, ay

Dame tu cosita ah ah

Muévete para aquí, muévete para allá

Dame tu cosita (ay toma, cosita, cosita, cosita)

Dame tu cosita (ay toma, cosita, pure energy)

Dame tu cosita (ay toma, cosita, cosita, cosita)

Dame tu cosita (ay toma, cosita, cosita, cosita)

Dame tu cosita ah ah

Dame tu cosita ah, ay

Dame tu cosita ah ah

Dame tu cosita ah, ay

Dame tu cosita ah ah

Dame tu cosita ah, ay

Dame tu cosita ah ah

Muévete para aquí, muévete para allá

Dame tu cosita (ay toma, cosita, cosita, cosita)

Dame tu cosita (ay toma, cosita, pure energy)

Dame tu cosita (ay toma, cosita, cosita, cosita)

Dame tu cosita (ay toma, cosita, cosita, cosita)

Answer:

2. estas ; soy

10.  es

11. es

15. estas

Answer:

(10, 1)

Step-by-step explanation:

It tells you that when you translate it you add 2 to the x-coordinate and subtract 7 from the y-coordinate. This means that the point E, (8, 8), would become (8 + 2, 8 - 7) or (10, 1).

Answer:

The radius of the cone is approximately 13.4 feet

Step-by-step explanation:

The dimensions of the given cone are;

The distance from the top of the cone to the edge of the cone = 15 feet

The height of the cone = 6 feet

The radius of the cone is given by the base of the right triangle formed by the slant length, the base radius and the height which is found using Pythagoras theorem as follows;

The radius of the cone, r = √((Slant distance)² + (Height)²)

∴ r = √((12 ft.)² + (6 ft.)²) ≈ 13.4 ft. (by rounding to the nearest 10th)

Answer:

x < 14

Step-by-step explanation:

2x - 1 +1 < 14      add the negative one and one

2x < 14               divide both sides by 2

x < 14                  simplify

Answer:

x<7

hope it helps........

Answer:

x = 7

Step-by-step explanation:

The 2 triangles are similar ( AA postulate ), then the ratios of corresponding sides are equal, that is

[tex]\frac{x}{42}[/tex] = [tex]\frac{6}{36}[/tex] ( cross- multiply )

36x = 252 ( divide both sides by 36 )

x = 7

Answer:

83

Step-by-step explanation:

do the math

Answer:

83

Step-by-step explanation:

Solution:

63 + 63 = 126

292 - 126 = 166

166 ÷ 2 = 83

Answer: 83

Answer:

Question 9: 35    Question 10: 10

Step-by-step explanation:

Use BEDMAS (Brackets Exponents Division Multiplication Addition Subtraction).

Question 9:

Start with the brackets.

10 x 4 - (7 - 2)

= 10 x 4 - (5)

Then, multiply 10 and 4.

= 40 - 5

Solve the subtraction.

= 35

Question 10:

Start with the brackets.

1 - (2 - 3) + 8

= 1 - (-1) + 8

= 1 - - 1 + 8

(Two negatives = a positive)

= 1 + 1 + 8

Add the numbers.

= 10

Answer:

To me it means that challenges are meant to show your strengths and weaknesses, and that things will challenge your weakness but it ends up making them into strengths.

Step-by-step explanation:

Answer:

1:2

Step-by-step explanation:

So when finding equivalent ratio in any ratio is finding a common denominator that goes to both numbers for instance:

If you have the ratio 8:16 what is the common factor that can go into both 8 and 16 equally? Well 8 can go into 8 once and 8 can go into 16 twice so lets put this into a problem:

8:16 = (8/8):(16/8) = 1:2

So our equivalent ratio to 8:16 is 1:2.

Hope this helps!!!

Answer: 258.64

Step-by-step explanation:

Answer:

it is 7.

Step-by-step explanation:

77 divided by 11=7

Answer:

c=7

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

-7 + 4r = -15

+7             +7

4r = -8

divide both sides by 4

r = -2

Hope this Helps!!!

Answer:

r=-2

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

4r−7=−15

Step 2: Add 7 to both sides.

4r−7+7=−15+7

4r=−8

Step 3: Divide both sides by 4.

4r/4=−8/4

r=−2

Answer:

I believe its 36

Step-by-step explanation:

so what i id is a took apart the answer, if 1 1/4 if 10 cups the 1/4 1/4 1/4 1/4 1/4 would also be 10 cups, so now i know that 1/4 = 2 servings

eso i took 3. 1/4 and that gave me 6 and now add the previous which is 10 so its 16 and i have   2 cups left

from here i knew 1 cup and 1/4 is 10 so subtract 1/4 which is -2 servings and you have 8 and 8+8 is 16 so

then i added

16+16= 36

which leads to my final answer of 36

Im so sorry if im wronge but if its right please give brainlest