pleaseee helpp!! no links or i’m reporting

Answer:

Yes.

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Step-by-step explanation:

Step 1: Define

Identify

8x + 3y = 20

x + 4y = 17

(1, 4)

Step 2: Check

Plug and verify the coordinates is a solution.

∴ Since both equations work out, (1, 4) is a solution to the systems of equations.

Answer:

E

Step-by-step explanation:

Cos=Adjacent/hypotenuse

Cos30=rad3/2

The cosine function for Ф = 30 is equivalent to :

cos(30) =√3/2.

There are six major trigonometric functions as -

We can write the relation between them as -

Also the following trigonometry relations hold true -

sin²Ф + cos²Ф = 1

1 + tan²Ф = sec²Ф

1 + cot²Ф = cosec²Ф

Given is a right angled triangle as shown in the image having 60 - 90 - 30 orientation and the measured sides as shown in the image.

We can write the cosine function as -

cosФ = Base/Hypotenuse

cos(30) = √3/2

So, we can conclude that the cosine function for Ф = 30 is equivalent to :

cos(30) =√3/2

Therefore, the cosine function for Ф = 30 is equivalent to :

cos(30) =√3/2.

To solve more questions on trigonometric functions, visit the link below-

https://brainly.com/question/30672622

#SPJ7

Answer: 1 1/4 and 9/64, respectively

Step-by-step explanation:

First one: Rectangle area= Side1 x Side2= 5/3x3/4=1 1/4

Second one: Square area:

Side length squared= 3/8^2=3/8•3/8=9/64

Answer:

n = 8

Step-by-step explanation:

The angles are vertical angles and so they are equal

9n = 8n+8

Subtract 8n from each side

9n - 8n = 8n+8-8n

n = 8

Answer:

y = -2x - 16

Step-by-step explanation:

y = -2x + b

-2 = -2(-7) + b

-2 = 14 + b

b = -16

Answer:

For function g(x)= x^2+3 it would move up 3 units on the Y-axis

For Function f(x)= g(x+2) the functions would move left 2 units on the X-axis

Step-by-step explanation:

Hope this helps

Answer:

68 000

Step-by-step explanation:

When we round to the nearest thousand, we have to look which thousand is closer to the value. So in our case 67795 is 205 away from 68 000 and is 795 away from 67000. From this we know that 68 000 is closer, therefore if we round 67 795 to the nearest thousand we will get 68 000.

Answer:

12 11/35

Step-by-step explanation:

Given Data

First term= 15 3/5

To simple fracrion= 78/5

Second term= 3 2/7

To simple fracrion= 23/7

Hence the operation goes thus

= 78/5- 23/7

LCM = 35

=546-115/35

=431/35

=12 11/35

Answer:

[tex] 12 \frac{11}{35} = \frac{431}{35} [/tex]

Step-by-step explanation:

[tex]15 \frac{3}{5} - 3 \frac{2}{7} \\ (15 - 3) + ( \frac{3}{5} - \frac{2}{7} ) \\ 12 + ( \frac{3}{5} - \frac{2}{7} ) \\ 12 + \frac{11}{35} [/tex]

[tex] \boxed{Answer:{\boxed{\green{= 12 \frac{11}{35} = \frac{431}{35}}}}} [/tex]

Answer:

146°

Step-by-step explanation:

Points A and B are the endpoints of an arc of a circle. Chords are drawn from the two endpoints to a third point, C, on the circle. Given m arch AB=64° and ⦣ABC=73°, m ⦣ABC=__ ° and m arch AC=__ °.

Solution:

Given that:

arc AB = 64° and ⦣ABC=73°

The Central Angle Theorem states that the central angle from two chosen points A and B on the circle is always twice the inscribed angle from those two points. The inscribed angle is any point along the outer arc AB and the two points A and B.

Therefore arc AC is the central angle of ⦣ABC. Using the central angle theorem gives:

arc AC = 2 * ⦣ABC

substituting:

arc AC = 2 * 73

arc AC = 146°

Answer:

3141.59 cm cubed

Step-by-step explanation:

The formula for volume of a cone is:

V=πr²h /3

When you plug in your numbers, you'll get your answer!

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Have a good day :)

Answer:

1000π cm³

Step-by-step explanation:

v = ⅓×π×10²×30

= 1000π cm³

or 3,140 cm³

Answer:

7% per annum

Step-by-step explanation:

Mathematically, we have t he formula for simple interest as;

I = PRT/100

I is the interest which is the difference between the amount deposited and the amount withdrawn

That would be 5445 - 4500 = 945

R is the rate which we want to calculate

T is the time which is 3 years

Thus, we have ;

R = 100I/PT

R = (100 * 945)/(4500 * 3)

R = 7%

Answer:

I think the answer is 6. A triangle is 180 degrees and 70+60=130

180-130=50 and 8x6=48 and 48+2 would give you 50.

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

8/4 = 2

Answer:

2

Step-by-step explanation:

12.56 cubic inches

Step-by-step explanation:

Volume of a cone= π r² h/3

3.14*2*2*3/3

3.14*4*3/3

12.56*3/3

=12.56 cubic inches

Answer:

12.56 cubic inches

Step-by-step explanation:

Answer:

Step-by-step explanation:

The required mass of reactants can be computed from the number of moles of product.

  moles of ZnCl₂ = (1.5 g)/(136.282 g) ≈ 0.0110066 moles

Then the mass of Zn required is ...

  mass of Zn = (0.0110066 mol)(65.382 g/mol) = 0.71963 g

Two moles of HCl are used in the reaction with each mole of Zn, so the mass of HCl required is ...

  mass of HCl = 2(0.0110066 mol)(36.458 g/mol) = 0.80256 g

_____

Comment

The discrepancy in the last two decimal places of the weights above versus the calculator output below comes from rounding of moles of Zn to 4 significant digits, instead of 5 or more. The number of moles of ZnCl₂ is closer to 0.0110066.

Answer:

You use a calculator

Step-by-step explanation:

I mean that is the answer to everything

Answer:

The difference in the medians is about 1.5 hours.

The interquartile range for middle school students is 5, and the interquartile range for elementary school students is 3

Both sets of data have the same maximum and minimum values.

Step-by-step explanation:

Answer:

A, C, and D

Step-by-step explanation:

Answer:

erika read more because 1/2 is more than 1/3.

Answer:

Erica = D

Step-by-step explanation:

This is because 1/2 = 0.5 and 1/3 = 0.33 and 0.5 is bigger than 0.33

Answer:

The equation of hyperbola :  [tex]\frac{y^{2} }{49 } - \frac{x^{2} }{32 }[/tex]

Step-by-step explanation:

Given - This hyperbola is centered at the origin.

Foci: (0,-9) and (0,9) Vertices: (0,-7) and (0,7)​

To find - Find its equation.

Solution -

We know  that,

Equation of Hyperbola is represented by

[tex]\frac{y^{2} }{a^{2} } - \frac{x^{2} }{b^{2} }[/tex]

Now,

Given that,

Foci : F(0, -9) and F'(0, 9)

So,

c = 9

And

Vertices : A(0,-7) and A'(0,7)​

So,

a = 7

Also, we know that,

c² = a² + b²

⇒b² = c² - a²

⇒b² = 9² - 7²

⇒b² = 81 - 49

⇒b² = 32

So,

The equation of hyperbola becomes

[tex]\frac{y^{2} }{49 } - \frac{x^{2} }{32 }[/tex]

Answer:

X would be 360

Step-by-step explanation:

A full circle is 360 degrees.

Answer:

62 because that one is an acute so I hope this was helpful

Answer:

The domain of a function is the set of all possible inputs for the function.

Step-by-step explanation:

For example, the domain of f(x)=x² is all real numbers, and the domain of g(x)=1/x is all real numbers except for x=0. We can also define special functions whose domains are more limited.

Hope this helped!

Answer:

f(8) = 195

Step-by-step explanation:

When the x if f(x) is replaced with an 8, this just means that it is the eighth term. All you really have to do is replace every X in the function to find the answer.

f(8) = 3 + 3(8)²

f(8) = 3 + 3(64)

f(8) = 3 + 192

f(8) = 195

Hope this helps!

Answer:

195

Step-by-step explanation:

plug 8 =x into the equation

Answer:

minimum = 55 F

Maximum = 71 F

Step-by-step explanation:

Change means it could either go down or up.

If it goes down by 8 then 63-8 = 55 F

If it goes up by 8 then 63 + 8 = 71 F

Hope this helps!

Answer:

Step-by-step explanation:

minimum 55

maximum 71

The answer is D. (7,8)

You are able to count from 0 to ten, and you always put the x number first!

Hope this helps :)

Answer:

(rounded)17.2=Q

Step-by-step explanation:

Q= 13/cos41

Answer:

5*3ˣ

Step-by-step explanation:

We see that when x=0 y=5

this means that we can write

a*b⁰=5

a*1=5

a=5

Now we just need to solve for B

using the point (1,15) we can write

15=5*b¹

3=b

Which all comes together to mean

5*3ˣ

Answer:

57º

Step-by-step explanation:

A triangle equals 180º so to find x, just subtract the other angles from 180

180 - 39 - 84 = 57

Step-by-step explanation:

x+39+84=180 (being sum of angle of triangle is 180)

x+123=180

x=57

Answer:

D.0

Step-by-step explanation:

If you graph the equation you can see that it doesn't cross the x-axis. It doesn't go lower than y=1. If you don't have a graphing calculator use Desmos. Also the +1 at the end of the equation tells you that it won't go lower than y=1.

Answer:

Never your answer is 0

Step-by-step explanation:

The equation creates what's called a parabola the line curves up the 1 represents the y axis so the line curves up from the y axis point 1 never touching the x axis

here's a graph to prove it also Brainiest?

Answer:

-4 and 10

Step-by-step explanation:

let me know if this is incorrect