Can some one help me with this, I can't get it, and i'll give brainliest, 5 star, and all the good stuff.

Answer:

M x 1/3 + 2. The variable is Marcella's age. If Marcella is 63, one third of her age is 21 so 21+2 = Justin is 23. Aimee is 23x2-4 so she is 62 years old.

Step-by-step explanation:

Answer:

f=2

Step-by-step explanation:

4(f+1)=12

4f+4=12

-4 -4

4f=8

f=2

Answer

F = 2

Step-by-step explanation:

Distributive property: 4f+4=12

-4 -4

Subtraction property of equality: 4f=8

/4. /4

Division property of equality: f=2

Answer:

y>−1

Step-by-step explanation:

y-6>-7

Add 6 to both sides

y-6+6 > -7+6

Simplify

y>-1

Answer:

y > -1

Step-by-step explanation:

[tex]y - 6 > - 7 \\ y > - 7 + 6[/tex]

[tex] \boxed{Answer:{\boxed{\green{= y > - 1}}}}[/tex]

Answer: E only

Step-by-step explanation:

Had the test

The expressions are also equal to 1/3 is cos (90 -x).

These relations are valid for all the values of A that lies between 0° and 90°.

Given:

sin x = 1/3

Now, using property

sin [tex]\theta[/tex] = cos [tex]( 90- \theta)[/tex]

So, sin x= cos (90 -x)

Hence, The expressions are also equal to 1/3 is cos (90 -x).

Learn more about properties of Trigonometry here:

https://brainly.com/question/12068045

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Answer:

wouldn't it be -3 * 8 = -24

Step-by-step explanation:

also I love your pfp

Answer:

8

Step-by-step explanation:

-24/-3 = 8

Answer:

65%

Step-by-step explanation:

100 = 35 = 65

Answer:

2.1400

Step-by-step explanation:

Answer:

2.4

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

It goes up as it goes right so not A or B. Not D as it is a straight line.

Answer:

1

Step-by-step explanation:

So first we do (x^5)^2 which we know is just x^10 because of exponents of powers I believe it's called, basically you just multiply the two powers.

Then you do the bottom half which is x^3 * x^7 and that equals x^10 because of the product of exponent rule,

Then we do x^10/x^10 which = 1 because the same number over the same number is always 1.

Let me know if you have any questions

Answer:

Solving the expression: [tex]\frac{(x^5)^2}{(x^7)(x^3)}[/tex] the answer is 1

Step-by-step explanation:

We need to solve the expression: [tex]\frac{(x^5)^2}{(x^7)(x^3)}[/tex]

We know that exponent rule: [tex](a^m)^n=a^{m*n}[/tex]

Applying this rule in numerator

[tex]\frac{(x^5)^2}{(x^7)(x^3)}\\=\frac{(x^{5*2})}{(x^7)(x^3)}\\=\frac{(x^{10})}{(x^7)(x^3)}[/tex]

We know the exponent rule: [tex](a^m).(a^n)=a^{m+n}[/tex]

[tex]=\frac{(x^{10})}{x^{7+3}}\\=\frac{(x^{10})}{x^{10}}[/tex]

Now, using the exponent rule: [tex]\frac{a^m}{a^n}=a^{m-n}[/tex]

[tex]=x^{10-10}\\=x^0[/tex]

We know that [tex]a^0=1[/tex]

So, [tex]x^0=1[/tex]

Solving the expression: [tex]\frac{(x^5)^2}{(x^7)(x^3)}[/tex] the answer is 1

Answer:

Step-by-step explanation:

A) For the city of Everettt, y-intercept  represent the number of chrome books they started with.

y - intercept = 550

Everett started the 2016 year with 550 chrome books

B)  y = 50x + 300

Explanation: They stared with 300 books at 2016. This will be the y-intercept

Rate of change = 50 books per year which will the slope

m = 50 and b = 300

y = mx + b

y = 50x + 300

Hint:  y- intercept is where x-coordinate =0

Answer:

perpendicular

Step-by-step explanation:

a line is perpendicular to another line when m of one line is the negative or opposite reciprocal of the other. m= 2

the perpendicular lines for that would be 1/2 which is the reciprocal and then the opposite sign which is negative.

Answer:

They are co interior angle . so mZ 1 is 72 itself

Answer:

12/sin90'=b/sin67'

12sin67'=bsin90'

b=12sin67/sin90'

Step-by-step explanation:

sister ,we can use the law of sines. since we have the angle of elevation and assume the wall makes a right  angle with the ground, our angle opposite the ground is 180-[90+23=67

hope this is  helpful for you

Answer:

2 unique triangles

Step-by-step explanation:

We can only form two triangles

Since two of the sides are equal, we can form two isosceles triangles

The first one will have 10, 10 , the last side, then 40, 70 , 70 as the internal angles

Just note that the angles must add up to be 180 and that there are two equal angles as we are dealing with an isosceles triangle

The second form is 10, 10 , 40 , 40 and 100

Here, we have the 40 on the sides of the base of the isosceles triangle with the measure 100 being the last angle

The number of unique triangles that can be formed with he given parameters are; 2

We are told that;

Two side lengths of the triangle = 10 cm

One angle = 40°

Now, the two equal angles could be 40° each.

Thus;

Third angle of the triangle = 180 - 2(40) = 100°

(180 - 40)/2 = 140/2

>> 70°

Thus, we can make 2 unique isosceles triangles.

Read more about Isosceles triangle at; https://brainly.com/question/24371813

Answer: She wrote [tex]3\dfrac{1}{20}[/tex] documents on Friday.

Step-by-step explanation:

GIven: Total documents needed to be done = 12

If she finished writing all documents by Friday, then the number of documents written on Friday = 12-(work done by Wednesday) - (work done on Thursday)

[tex]= 12 -(3\dfrac15)-(5\dfrac34)\\\\=12-\dfrac{16}{5}-\dfrac{23}{4}\\\\=\dfrac{12\times20-16\times4-23\times5}{20}\\\\=\dfrac{240-64-115}{20}\\\\=\dfrac{61}{20}\\\\=3\dfrac{1}{20}[/tex]

Hence, She wrote [tex]3\dfrac{1}{20}[/tex] documents on Friday.

Answer:

3(n+5) ≥ -6

n ≥ -7

Step-by-step explanation:

3(n+5) ≥ -6

3n+15 ≥ -6

3n ≥ -21

n ≥ -7

Answer:

by solving the inequality you will get :

c. n =< -7

Step-by-step explanation:

here's the explanation in attached picture

If you want to eliminate x than multiply equation 1 by 4 and equation 2 by 3 and subtract them or,

If you want to eliminate y than mutiply equation 1 by 8 and equation 2 by 11 and subtract them.

The measure of angle NMQ is 73 degrees

The given parameter is:

[tex]\angle MNP = 107[/tex]

From the given figure, angles MNP and NMQ are adjacent angles.

Given that the adjacent angles of a trapezoid add up to 180 degrees.

We have the following equation

[tex]\angle MNP + \angle NMQ = 180[/tex]

Make NMQ the subject

[tex]\angle NMQ = 180 -\angle MNP[/tex]

Substitute 107 for MNP

[tex]\angle NMQ = 180 -107[/tex]

[tex]\angle NMQ = 73[/tex]

Hence, the measure of angle NMQ is 73 degrees

Read more about adjacent angles at:

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Answer:

Step-by-step explanation:

Options B and D are correct as they are equal to 1728

Answer:

3x+17

Step-by-step explanation:

2(2x+6) - x + 5--->distibutive property

(4x + 12) -x + 5

3x + 17, you were correct

Answer:

3x + 17

Step-by-step explanation:

the distributive property in the parentheses and then use PEMDAS

Answer:

1.92

Step-by-step explanation:

to find the unit cost you just divide 5.76 by 3

5.76/3 = 1.92

Answer: 72

i looked it up it so it should be right

Answer:

The perimeter of square will be 18 units

Step-by-step explanation:

We are given that the coordinates of three vertices of a square A (-2 1/2 , 1 1/2), B (-2 1/2 -3), and C (2,1 1/2 )

When point D is placed on this perimeter.

We have to find the perimeter of the square.

First we have to find the side of square by using the distance formula

Distance formula

[tex]\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

Coordinates of A=(-5/2,3/2)

Coordinates of B=(-5/2,-3)

Length of side AB=[tex]\sqrt{(-5/2+5/2)^2+(-3-3/2)^2}[/tex]

Length of side AB=[tex]\sqrt{0+(-9/2)^2}[/tex]

Length of side AB=9/2 units

Now, the perimeter of square=4 (side)

Using the formula

Perimeter of square=4(9/2)=18 units

Answer:

C. 14cm

Step-by-step explanation:

The square of the longest line, in an obtuse triangle, is greater than the sum of the squares of the other two sides. So it is appropriate for equivalent legs to have a length

L^2 + l^2=2l^2

14^2+14^2=20^

196+196=400

392=400 400

The result:  14cm

Answer:

838 that is already rounded to the hundred place....

Step-by-step explanation:

Answer:

800

Step-by-step explanation:

because if it is less than 50 it goes to the original number and if it is 50 or above it goes up

Answer:

Longest side = 110 cm

Step-by-step explanation:

The extended ratio of the sides of a triangle is 7:8:10

Let sides are 7x, 8x and 10x.

The perimeter of the triangle is 275 cm.

Perimeter of a triangle = sum of all sides

7x+8x+10x = 275

25x = 275

x = 11

Longest sides of the triangle = 10x

= 10 (11)

= 110 cm

So, the longest side of the triangle is 110 cm.

Answer:

1. d

2. c

3. b

4. a

Step-by-step explanation: use PEMDAS to solve

Answer:   95.40

Step-by-step explanation:

7.95*12=95.40

1.Proportional reasoning compares ratios to answer questions. We can use proportional reasoning to solve some questions directly, such as which size of laundry detergent is the cheapest per load, or what the dimensions of the model car should be.

3.The question is how many ways

There are as a many ways to solve a math problem as you can think of.(Some are shorter or easier than others.)

Essentially, an innfinite number.

sorry I have no idea other questions

This is just simple subtraction, 59.99 - 47.50

The answer is C: 12.49