I’ll make brainly if the answer is right

Answer:

Step-by-step explanation:

4(4) = -7(-3) - 5

16 = 21 - 5

16 = 16

answer is D

Answer: (-3.4)

Step-by-step explanation: took test 6.02

Foundations wrap up Systems of Equations

Answer:

Step-by-step explanation:

We are given that:

The failure rate = 0.1 failure/year

i.e.  = [tex]\dfrac{0.1}{365\times 24}= 0.00001 \ failure /hour[/tex]

The repair rate = 365 repair/year, if we convert this to repair/hour; we get:

[tex]= \dfrac{365}{365\times 24} \\ \\ = 0.04 \ repair/ hour[/tex]

Time (t) = 1 hour

P(failure) = 1 - R  ; if (t=1)

where:

[tex]Reliability (R ) = e^{-\lambda t}(1+ \lambda t) \\ \\ = e^{-0.00001*1}(1+0.00001 *1) \\ \\ \simeq 0.9999[/tex]

P (failure) = 1 - R  

= 1 - 0.9999

= 0.0001

≅ 0

The frequency meantime of failure = [tex]\dfrac{1}{\lambda}[/tex]

[tex]\dfrac{1}{0.00001}[/tex]

= 100000

The average downtime of repair for the system = [tex]\dfrac{1}{\mu}[/tex]

[tex]=\dfrac{1}{0.04}[/tex]

= 25

Answer:

1) 47 degrees

2) 28 degrees

3) 26 degrees

Step-by-step explanation:

a triangle always equals 180 degrees, you add together the numbers you have then subtract it from 180 then you'll get your answer <3

Answer:

look at degree of polynomial

Step-by-step explanation:

Answer:

x < -4

Step-by-step explanation:

I guess that the inequality is:

-7*x + 13 > 41

Solving this is equivalent to isolating x in one side of the inequality.

To do it, we first can subtract 13 in both sides:

-7*x + 13 - 13 > 41 - 13

-7*x > 28

Now we can divide both sides by -7, because we are dividing by a negative number, the direction of the inequality changes:

-7*x/-7 < 28/-7

x < -4

The graph of the solution is an open dot at x = -4 and a line that starts there and goes to the left.

Answer:

t = -100

Step-by-step explanation:

Simplify to isolate t:

[tex]\frac{t}{2}+10-10=-40-10[/tex]

[tex]\frac{t}{2} * \frac{2}{1} = -50 * 2[/tex]

[tex]t = -100[/tex]

Answer:

b

Step-by-step explanation:

Answer:

a.

False : it is to add 16+8

b.

False : its 8.

c.

True.

d.

False : its 24.

3.

side of cube [a]=2ft

volume of cube [V]=a³=2³=8ft³

He needs 1 bag to buy.As its volume is equal.

Answer:

siygxuyasvc

Step-by-step explanation:

Complete question :

dion places a ladder against The side of his house as shown in the diagram below. Dion’s water is 26 feet long, and he places the ladder at a 70° angle with the ground, How high does the ladder reach up the side of the building?.

Answer:

24.43 feets

Step-by-step explanation:

Using trigonometry :

Sinθ = opposite / hypotenus

Opposite = height, h

Hypotenus = 26

Sin 70° = h / 26

0.9396926 * 26 = h

height, h = 24.43 feets

The sine rule is the ratio of the height and hypotenuse. Then the height of the wall is 24.43 ft.

It is a type of triangle in which one angle is 90 degrees and it follows the Pythagoras theorem and we can use the trigonometry function. The Pythagoras is the sum of the square of two sides is equal to the square of the longest side.

Dion places a ladder against the side of his house as shown in the diagram below.

Dion’s water is 26 feet long, and he places the ladder at a 70° angle with the ground, represented by zero.

We have

Hypotenuse (H) = 26 ft

Let h be the height of the la

Then the height of the wall will be given by the sine rule.

[tex]\rm h = H sin \ \theta \\\\h = 26 * sin \ 70^o\\\\h = 24.43 \ ft[/tex]

The height of the wall is 24.43 ft.

More about the right-angle triangle link is given below.

https://brainly.com/question/3770177

Answer:

sqrt. 244

Step-by-step explanation:

a^2 + b^2 =c^2

10^2 + 12^2 =244

c^2 =244

c= sqrt. 244

Answer:

if x+y equal 90

and z equal 2 sqrt 61

if you want the real values of the x and y iam not sure but you have to use ratios and proportions Formula for example 24k=90

k =15/4

y=10k

x=12k

like this hopefully its helpful

Answer:

y=25

Step-by-step explanation:

the straight line is 180

so, 180-115=65

so, now we know x=65

triangle =180

180-65-90=25

I dont understand the question

Answer:

25

Step-by-step explanation:

90 - 65 = 25

Therefore, x is 25

Thenks and mark me brainliest :))

Answer:

1/8

Step-by-step explanation:

Answer:

1. 360cm^3

2. 240cm^3

3. 150cm^3

4. 210cm^3

5. 512cm^3

6. 864cm^3

7. 92cm^2

8. 150cm^2

9. 446cm^2

10. 174cm^2

11. 384cm^2

12. 540cm^2

Step-by-step explanation:

Answer:

The real answers are 60,6,42,30

Step-by-step explanation

The histogram shows the number of people in different age groups who visited Ray’s coffee shop on a Tuesday morning.

1. the maximum customer age recorded in

the histogram

2. the number of customers less than 23 years

Answer: The number of customers less than 23 years old recorded in the histogram is 42.

The total number of customers recorded in the histogram is 60.

The maximum customer age recorded in the histogram is 30.

The difference of the number of customers in the age groups 27-30 and 19-22 recorded in the histogram is 6.

Answer:

90°

Step-by-step explanation:

It's simple, the angle of a line is 180°

∠EFG=90°

Line GD-∠EFG=180°-90°=90°

Please mark brainliest!

Answer:

I believe 2% will be false negatives and 3% will be false positives

Step-by-step explanation:

9514 1404 393

Answer:

  L'(4, -3)

Step-by-step explanation:

The reflection over the horizontal line y=-1 effects the transformation ...

  (x, y) ⇒ (x, -2-y)

So, the coordinates of L are transformed to ..

  L(4, 1) ⇒ L'(4, -2-1) = L'(4, -3)

Answer:

Grape Juice 250

Apple Juice 2,250

Ginger Ale 2,500

Answer:144

Step-by-step explanation: I explained what to do in the comments.

Answer:

C. Wave-like and repetitive

Step-by-step explanation:

I calculated it logically

Answer:

15x - 6/7    

Step-by-step explanation:

Answer:

(a) refers to the distance around a figure

(c) used to find the amount of fencing

(e) estimated by counting the squares inside

(f) calculated by adding the side lengths

Step-by-step explanation:

In the simplest term, the perimeter of a given figure is the distance around that figure. This also means that the perimeter of a figure can be found by adding the lengths of all its sides.

If perimeter is the distance around a figure, then it could be measured in any specified units of length e.g meter, yard, inch e.t.c.

Perimeter can also be estimated by counting the squares inside a given enclosure.

A practical application of perimeter is that it comes to play when, for example, there is a need to build a fence around an area.

PS:

For other options;

=> Perimeter is not given in square units. That is rather typical of area

=> Perimeter is not used to find the amount of carpeting. That is also typical of area

Answer:

a c f

Step-by-step explanation:

Answer:

X= 14  

The acute angle measures 34 degrees.

The obtuse angle measures 146 degrees.

Step-by-step explanation:

To solve this question, start by solving for x. In order to solve for x, know that angle (10x+6) degrees and angle (3x-8) degrees is a supplementary angle. A supplementary angle is an angle in which the sum of two angles equal 180 degrees.

Since angle (10x+6) degrees and angle (3x-8) degrees is a supplementary angle, we know that the sum of the two angles equal 180 degrees. To find x, write an equation that sets angle (10x+6) degrees and angle (3x-8) degrees equal to 180 degrees. The equation will look like (10x+6) + (3x-8) =180. To start solving the equation, combine like terms, which will look like 13x-2=180. Next, add 2 to both sides, and the equation will look like 13x = 182. Then, divide both sides by 13, and x will equal 14.  

Since the x is now known, the actual degrees of the angles can be found. To find the actual degrees of both angles, start by plugging 14 into each angle equation.

For 10x+6, plug 14 into x, and the equation will look like 10(14)+6. Next, simplify the equation, and the answer will be 146 degrees. The 146 degrees is the obtuse angle because an obtuse angle has a measurement greater than 90 degrees but less than 180 degrees.  

For 3x-8, plug 14 into x, and the equation will look like 3(14)-8. Next, simplify the equation, and the answer will be 34 degrees.The 34 degrees is the acute angle because acute angles measure less than 90 degrees.

To check if the angles are correct, add both angles, and the answer will equal 180 degrees, which then makes them supplementary angles.

Answer:

[tex]n = 5[/tex]

Step-by-step explanation:

Given

[tex]2.54n = 12.7[/tex]

Required

Find n

We have:

[tex]2.54n = 12.7[/tex]

Divide both sided by 2.54

[tex]\frac{2.54n}{2.54} = \frac{12.7}{2.54}[/tex]

[tex]n = \frac{12.7}{2.54}[/tex]

[tex]n = 5[/tex]