C^2 = 27

Pls help me I’m doing my missing math work :,)

Answer:

the first, the third and the last one are true

Step-by-step explanation:

Answer:

if it is a right angle triangle then;

step 1   Determine if hypotenuse or side

step 2 calculate a^2+b^2 = c^2  or c^2-b^2 = a^2 if not given hypotenuse.

if it is an obtuse or scalene triangle then

step 1.  Determine the triangle third length we use trigonometry as cos (side a/sideb) to determines the angle between a and b.

With such angle for opposite side we can use sin (angle) x side to find hypotenuse or sin(angle) x hypotenuse to find side.  

Step-by-step explanation:

Answer:

between 180 and 365 cuz it's a reflex angle

This is a basic algebraic fraction question

Step 1: Factor n2-9

Step 2: Rewrite the second fraction

Step 3: Write all the numerators under the least common denominator

Step 4: Expand bracket

Step 5: Collect like terms

Answer:

The square root of 196 is 14

Step-by-step explanation:

Prime factorization of 196:

Prime factors of 196 in pairs:

Now square root of 196:

Thus, The square root of 196 is 14

-TheUnknownScientist 72

Answer: [tex]\sqrt{196} =14[/tex]

Step-by-step explanation:

[tex]{\begin{array}{c|c}196 & 2 \\ 98&2 \\49 &7 \\7&7 \end {array }[/tex]         [tex]196=2\cdot 2\cdot 7\cdot 7=2^4\cdot 7^2 \\\\\sqrt{196} =\sqrt{2^2\cdot 7^2} =2\cdot 7=14[/tex]

Answer:

3rd option

Step-by-step explanation:

The equation of a line in standard form is

Ax + By = C ( A is a positive integer and B, C are integers )

Given

y = [tex]\frac{2}{5}[/tex] x - 6 ( multiply through by 5 to clear the fraction )

5y = 2x - 30 ( subtract 5y from both sides )

0 = 2x - 5y - 30 ( add 30 to both sides )

30 = 2x - 5y , or

2x - 5y = 30 ← in standard form

Answer:

I hope this helps.

Step-by-step explanation:

Answer:

$1.75

Step-by-step explanation:

Answer:

1. -.2x

2. -.2x

3. -27

Step-by-step explanation:

First add -.65x and .45x to get -.2x then divide 5.4 by -.2 to get x alone and you get x=-27

Answer:

$3589.60

Step-by-step explanation:

Salary per fortnight {52 weeks in a year; 2 weeks in a fortnight}

= 86840 / 52 × 2

= 3340

Allowance per fortnight = 124.80 × 2 = 249.60

Therefore, total fortnightly pay is:

3340 + 249.60 = 3589.60

Answer:

The numbers are:

5, 12 and 4

Step-by-step explanation:

a + b + c = 21       Eq. 1

b = 2a +2             Eq. 2

b = 3c                   Eq. 3

From Eq. 2:

b - 2 = 2a

(b-2)/2 = a              Eq. 4

From Eq. 3:

c = b/3                     Eq. 5

Replacing Eq. 4 and Eq. 5 in Eq. 1:

(b-2)/2 + b + b/3 = 21

3(b-2)/6 + 6b/6 + 2b/6 = 126/6

3(b-2) + 6b + 2b = 126

(3*b + 3*-2) + 8b = 126

3b - 6 + 8b = 126

11b = 126 + 6

11b = 132

b = 132/11

b = 12

from Eq. 4

(b-2)/2 = a

(12-2)/2 = a

10/2 = a

a = 5

from Eq. 5

c = b/3

c = 12/3

c = 4

Check:

from Eq. 1

a + b + c = 21

5 + 12 + 4 = 21

Answer:

A. -3a³-6a²+7a-13 Hope this helps :)

Step-by-step explanation:

Answer:

Step-by-step explanation:

A. -3a³-6a²+7a-13

Answer:

C

Step-by-step explanation:

$6500 is a one time purchase so there is no variable attached.

$550 and $900 per week is reoccurring so there will be a variable attached.

Since $900 is what she is making each week, this will be separate from her costs (can eliminate D).

To make a profit, her amount earned will need to be greater than her expenses, so the answer is C.

It's a Quadratic that doesn't have any real roots as the parabola doesn't cross the x-axis.

For graphing:

If you're familiar with the parabola of y=x^2, then you could graph that but just translate it upwards by +4 on the y such that f(x)+4 will be equal to it.

If you aren't, then we know the y-intercept is 4, and that's also the point of the minimum point of the curve. If I were you, I'd write a table of some of the integer values:

x y

-2 8

-1 5

0 4

1 5

2 8

The value of y is the same for x and -x as anything squared is positive.This means that there is a line of symmetry in the y-axis.

This then makes it much easier to graph, simply place these points on the graph and make sure the curve is exponential. This means the gradient (steepness) gets greater the bigger the value of x.

Answer:

Not congruent

Step-by-step explanation:

They are not congruent because in order of congruency will have an angle(the ones marked with red) -

side( the side that the two triangles shares so are congruent by reflexive property ) -

side ( the one marked with the red line)

and this is not a theorem of congruency.

Answer:

Step-by-step explanation:

This is not a linear function

This is a linear function

This is not a linear function

This is not a linear function

Answer:

x=17

Step-by-step explanation:

Answer:

X = 17

Step-by-step explanation:

Use M A T H W A Y  to solve equations

Answer:

C = 7 + 1.25t

Step-by-step explanation:

7 remains constant

1.25 changes according to t

Answer:

C(t ) = 1.25t + 7

Step-by-step explanation:

We can establish the following equation:

C(t ) = 1.25t + 7

Where:

C(t ) = represents the total cost relative to the t  number of tickets used

t = number of tickets used to play games

1.25 = cost per ticket to play games

7 = flat fee to enter the arcade

Answer:

Total volume equals V1 - V2

[tex]v = \pi {r}^{2} h[/tex]

[tex]v = 12\pi {r1}^{2} - 12\pi {r2}^{2} [/tex]

where:

r1 = radius 1

r2 = radius 2

Step-by-step explanation:

[tex]r1 \\ v1 = 12\pi {3.5}^{2} \: is \: approx. \: 461.81 {cm}^{3} [/tex]

[tex]r2 \\ v2 = 12\pi {3.3}^{2} \: is \: approx. \: 410.54 {cm}^{3} [/tex]

Total Volume v is

[tex]461.81 - 410.54 = 51.27 {cm}^{3} [/tex]

Answer:

2.15

Step-by-step explanation:

substitute using elimination method and divide ur answers together.

Answer:

x =  1.56  and x = − 0.56

Step-by-step explanation:

2/3x  - 1/5x  

(2/3 x  5)  -  (1/5 x 3 )

10/15 - 3/ 15

13 / 15x  

show x-1

13 / 15x   =   x - 1     here we cannot set to 0 so multiply the variable by 15x

15x^2

−15x−13 = 0

quad formula   - b+/-   sqrt (b^2 - 4 x a x c )  /2

x =1.556724499   and x =−0.556724499

Answer:

Rational number

Step-by-step explanation:

........

...

tan ? = 22/48

tan ? = 11/24

tan ? = 0.4583

? = 24.62 degrees ( approximately )

[tex]\tan(?)=\dfrac{22}{48} \\\\ ?=\arctan\dfrac{22}{48} \approx24^{\circ}[/tex]

Answer:

Step-by-step explanation:

the answer is 189

Answer:

Step-by-step explanation

So mean is average

So total 26 hours studied

and there are 20 students

so 26/20

= 1.3

Answer:

thank You for your points this is the answer

We are asked to find the distance Louise cycled.

Speed Louise cycled = 12 mph

Time = 11: 30 am to 12 : 15 pm

= 45 minutes

Convert 45 minutes to hour

60 minutes = 1 hour

45 minutes = 3/4 hour

Speed = Total distance ÷ Total time taken

Distance = Speed × Time

= 12 mph × 3/4 hour

= 36 / 4

= 9 miles

Therefore, the total distance Louise cycled is 9 miles

Read more:

https://brainly.com/question/25005733

Answer:

The phone used 10 minutes to get to 50%, and 20 minutes to full