which of these expressions or phrases can be used to represent the model brainly choose al the correct answers.

Answer:

Use the Pythagorean theorem

Side = sqrt(7^2 - 6^2)

Side = sqrt(49-36)

Side = sqrt(13)

Rounded to nearest tenth = 9.22

Answer:

2.813 m

Step-by-step explanation:

x = 9.2   θ = 17    AB=?

Looking at our angle we have an adjacent side & need to find the opposite side.

So tan θ = opp/adj

tan 17 = AB/9.2

AB = 9.2tan17

AB = 2.813 m

Answer:

t = 9 cm

Step-by-step explanation:

Use Pythagoras' Theorem: a² + b² = c²

(where a and b are the legs and c is the hypotenuse of a right triangle)

Given:

⇒ 12² + t² = 15²

⇒ 144 + t² = 225

⇒ t² = 225 - 144

⇒ t² = 81

⇒ t = √81

⇒ t = ±9

⇒ t = 9 only as length is always positive

Solution:

Pythagoras theorem can only be used in:

Since this is a scalene right triangle, we can use Pythagoras theorem to solve the missing length of the triangle.

Finding a, b, and c:

Setting up the equation:

Simplifying the squares:

Subtracting (12)(12) both sides:

Taking a square root both sides:

Since the length cannot be negative, the value of t must be positive.

The final answer is...

Answer:

'b' and 'c' = 119 degrees

Step-by-step explanation:

Given that this is a basic intersection of straight lines, we can assume 'b' and 'c' are equal as well as the given angle and it's opposite. Given 61 degrees and and two straight lines we can just take 180 degrees - 61 degrees and we get 119 degrees, I solved for 'b', but this will give the same answer for 'c', as 'b' and 'c' are equal.

Answer:

B = 119°

C = 119°

Step-by-step explanation:

Answer:

Step-by-step explanation:

formula = b*h : 2

=> 4*6:2=24:2=12

Answer:

25

Step-by-step explanation:

we find how many problems 1% is first by solving 10/40, which gives us .25

then, we multiply by 100, which results in 25.

i could try to explain better if you'd like

Answer:

The answer is 25%

Step-by-step explanation:

1/4=.25

.25=25%

Answer:

★ 1/4 written as a percent is  25%. To get this answer, divide 1 into 4. 1/4=0.25. Now, multiply 0.25 by 100 to get 25.

Step-by-step explanation:

Hope you have a great day :)

The answer is three red balls

Answer:

x = 11, 3

Step-by-step explanation:

√(10x - 29) = x - 2

(√(10x - 29))² = (x - 2)²

10x - 29 = x² - 4x + 4

-10x + 29      -10x + 29

x² - 14x + 33  

(x - 11) (x - 3)

x - 11 = 0;     x - 3 = 0

   + 11  +11       +3   +3

x = 11              x = 3

I hope this helps!

Answer:

18514 if im wrong then sorry but i dont think its wrong

Step-by-step explanation:

Answer:

17 is the answer for #4

Answer:

3 mi

Step-by-step explanation:

Use the equation for area of a triangle, A = 1/2 * base * height. Plug in the numbers you have and solve for the height, You get that 3 = 1/2 * 2 * h, and that h = 3.

Hopefully this helps- let me know if you have any questions!

Answer:

A) 310 cm²

Step-by-step explanation:

The surface area is the area of the two-dimensional surfaces of this three-dimensional figure.

Start by multiplying each 5x4 rectangle. There are four of them that are visible from the front.

Now, find the surface area of the large rectangle in the back and the left side of the figure.

Find the surface area of the top of this figure.

Find the surface area of the bottom of this figure (it's the same as the area of the top).

Add all of the surface areas together to find the total surface area of the figure.

Answer:

x-intercept(s): (1,0),(-6,0)

y-intercept: (0,-6)

I am not sure about the maximum and minimum value sorry

Answer:

[tex] \frac{3}{23} [/tex]

Step-by-step explanation:

Since we start with 24 marbles, 9 of which are red, the probability of selecting a red marble is 9/24. The red marble is not put back, so there are now 23 marbles, 8 of which are red. It follows that the probability of selecting a second red marble is 8/23. So the probability of selecting a red marble and then another red marble is

[tex] \frac{9}{24} \times \frac{8}{23} = \frac{3}{8} \times \frac{8}{23} = \frac{3}{23} [/tex]

Answer:

y=12xO+b(i think)

Step-by-step explanation:

Answer:

Kindly check explanation

Step-by-step explanation:

Given the data:

426 429 418 417 422 435 420 410 432 435 423 426 409 437 436 429 411 426 411 438 422 428 413 414

A) Point estimate of the mean(m) : (ΣX) /n

Sample size(n) = 24

(426+429+418+417+422+435+420+410+432+435+423+426+409+437+436+429+411+426+411+438+422+428+413+414) / 24

= 10167 / 24

= 423.625 (3 decimal places)

b) Calculate a point estimate of the standard deviation of oxide thickness for all wafers in the population

s = √[Σ(X - m)² / (n - 1)]

Using calculator :

s = 9.277

s = 9.28 ( 2 decimal places)

C.)

Standard Error of point estimate :

SE = s/√n

SE = 9.28 / √24

SE = 1.8942720

(d) Calculate a point estimate of the median oxide thickness for all wafers in the population.

Median = 0.5 (n +1)th term

0.5(25) = 12.5th term ;

(12th + 13 th term)/2

(423 + 426) / 2

= 849/2

= 424.5

(e) Calculate a point estimate of the proportion of wafers in the population that have oxide thickness greater than 430 angstrom

Number of oxide thickness greater than 430 = 6

(number greater than 430 / total number of oxides)

= 6 / 24

= 1/4

= 0.25

Answer: Yes!

Step-by-step explanation:

a proportion is when to ratios are equivalent to each other and that they are set equal to each other

If you see, $30 is divided by 2 to get $15. Same goes for the pounds, 46 is divided by 2 to get 23. They follow the same proportion

Answer:

Average speed was 60mph so 240 ÷ 4 = 60

Answer:

1 pallet = 516kg

82 pallets = 516*82  = 42,312kg

Step-by-step explanation:

solve accordingly to the picture

Answer:

4 millimeters

Step-by-step explanation:

(32-24)/2

Answer:

The a line segment from the center of the circle to any point on the circle is a radius of the circle.

Step-by-step explanation:

Answer:

radius

Step-by-step explanation:

Answer:

-x = 12

Step-by-step explanation:

x = -12

if you multiply both sides of the equation by -1, you get

-1x = -12 * -1

-x = 12

Answer:

12

Step-by-step explanation:

So what we know is that x is equal to negative 12. To make this easier you can say that -x is the same as -1 times x like shown below,

-1 × [tex]x[/tex]  is the same as -X

We can replace the x with -12 and a negative times a negative is a positive so the answer would be 12.

If you want me to explain it more let me know, but hopefully this helps and have a great day!

Answer: follow this you'll be able to solve it

Step-by-step explanation: mean = 98.11F

standard deviation = 0.56F

99.79 – 98.11 = 1.68 = 3 standard deviations

96.43 – 98.11 = –1.68 = –3 standard deviations

96.43F and ​99.79F are 3 standard deviations from the mean 98.11F.

By the empirical rule we know that 99.7% of the data lies within 3 standard deviation of the mean.

Approximately 68% of healthy adults in this group have body temperatures within 1 standard of the​ mean, or between 97.55F and 98.67F.

Answer:

Simplify the radical expression. 3√0.125b3 0.5b −0.5b 5b −5b - did not match any documents.

Suggestions:

Make sure all words are spelled correctly.

Try different keywords.

Try more general keywords.

Try fewer keywords.

Step-by-step explanation: