7th grade math i mark as brainliest

Answer:

Part 1)

Part 2)

Part 3)

Part 4)

Part 5)

Part 6)

Part 7)

Part 8)

Part 9)

Part 10)

Step-by-step explanation:

Part 1) Find the measure of angle 7

we know that

----> by corresponding angles

we have

----> given

therefore

Part 2) Find the measure of angle 4

we know that

----> by supplementary angles (form a linear pair)

we have

substitute

Part 3) Find the measure of angle 6

we know that

----> by alternate exterior angles

we have

therefore

Part 4) Find the measure of angle 1

we know that

----> by vertical angles

we have

therefore

Part 5) Find the measure of angle 16

we know that

----> by supplementary angles (form a linear pair)

we have

---> given

substitute

Part 6) Find the measure of angle 18

we know that

----> by alternate interior angles

we have

therefore

Part 7) Find the measure of angle 21

we know that

----> by alternate exterior angles

we have

therefore

Part 8) Find the measure of angle 10

step 1

Find the measure of angle 14

we know that

----> by supplementary angles (form a linear pair)

we have

substitute

step 2

we know that

---> sum of interior angles of a triangle

we have

substitute

step 3

Find the measure of angle 10

we know that

----> by vertical angles

we have

therefore

Part 9) Find the measure of angle 11

we know that

----> by supplementary angles (form a linear pair)

we have

substitute

Part 10) Find the measure of angle 12

see Part 8)

Step-by-step explanation:

Answer:184 cm^2

Step-by-step explanation:

10*6*2=120

6*2*2=24

2*10*2=40

120+40+24=184

Answer:

184 cm²

Step-by-step explanation:

You can find the surface area of this net by finding the area of each rectangle and adding them up.

The top rectangle has dimensions of 10 and 6. You multiply them to get 60. Add in the units and the area of the top rectangle is 60 cm².

The rectangle under the one we just found the area for has the dimensions 10 and 2. Find the area. A = 20 cm².

The two rectangles to the side of the second rectangle have the dimensions of 6 and 2. The area of one is 12 cm². This means the two rectangles added together are 24 cm².

The next rectangle has the same dimensions as the first rectangle we solved. Therefore, the area is the same, which is 60 cm².

The last rectangle has the same dimensions as the second rectangle we solved. Therefore, the area is the same, which is 20 cm².

We will add the numbers altogether to find the surface area.

60 + 20 + 24 + 60 + 20 = 80 + 24 + 80 = 104 + 80 = 184 cm²

Answer:

Solution

Let last year and new year be L(y) and N(y)

Let last year Expired box and new year Expired box be L(E) and N(E)

Here,

L(y)=300 box

L(E)=25 box

N(y)=400 box

N(E)=x

We know,

N(y) / L(y) = N(E) / L(E)

400/300 = x/25

1.333333333 = x/25

x = 1.333333333 * 25

x = 33.333333333

So, the expire box this year is 33.333333333

Answer:

Graph A

Step-by-step explanation:

It’s the real numbers closer 0 then they are at 4.

Answer:

There are 0 lines here. Because the arrows (of lines) don't directly meet.

Answer:

Y = 1/4x-1

X = 4y-1

Step-by-step explanation:

layout the equations :

x+1/y = 4        y+1/x = 1/4

solve the equations, remember to switch sides switch signs solving the equations will give us the value of the letter

x+1/y = 4

x+1 = 4y

x=4y-1

***

y+1/x = 1/4

y+1  = 1/4x

y = 1/4x-1

Let first consider the equations one by one and will be solving one by one ;

[tex]{:\implies \quad \sf x+\dfrac{1}{y}=4}[/tex]

Multiplying both sides by y will lead ;

[tex]{:\implies \quad \sf xy+1=4y}[/tex]

[tex]{:\implies \quad \boxed{\sf xy=4y-1\quad \cdots \cdots(i)}}[/tex]

Now, consider the second equation which is ;

[tex]{:\implies \quad \sf y+\dfrac{1}{x}=\dfrac14}[/tex]

Multiplying both sides by x will yield

[tex]{:\implies \quad \sf xy+1=\dfrac{x}{4}}[/tex]

[tex]{:\implies \quad \sf xy=\dfrac{x}{4}-1}[/tex]

[tex]{:\implies \quad \boxed{\sf xy=\dfrac{x-4}{4}\quad \cdots \cdots(ii)}}[/tex]

As LHS of both equations (i) and (ii) are same, so equating both will yield;

[tex]{:\implies \quad \sf 4y-1=\dfrac{x-4}{4}}[/tex]

Multiplying both sides by 4 will yield

[tex]{:\implies \quad \sf 16y-4=x-4}[/tex]

[tex]{:\implies \quad \sf 16y=x}[/tex]

Dividing both sides by y will yield :

[tex]{:\implies \quad \boxed{\bf{\dfrac{x}{y}=16}}}[/tex]

Hence, the required answer is 16

Answer:

So, based on what I can see,

ON X FOR EACH

-from -7 to -3 (x) it is INCREASING

-from -3 to -1 it is INCREASING DRAMATICALLY

-from -1 to 1 it is DECREASING

-from 1 to 3 it is INCREASING

-from 3 to 5 it is DECREASING

-from 5 to 7 it is remaining CONSTANT.

Answer:

33.8

Step-by-step explanation:

1) Use Phythagoras theorem to get RS ↓

[tex]9.1 ^{2} + 6 ^{2} = 118.81 \\ \sqrt{118.81 } = 10.9[/tex]

2) RS = RQ

therefore, to get the perimeter, you'll have to total up the sides of the triangle ↓

[tex]rs + rq +qt + ts \\ = 10.9 + 10.9 + 6 + 6 \\ = 33.8[/tex]

Hope this helps =)

Answer:

33.8

**Brainliest would be appreciated**

Step-by-step explanation:

Answer:

13.28

13.301

13.31

Step-by-step explanation:

Answer:

Low:10,200,8.5

High:55,260,9.3

Median:35,230,9.0

Lower Quantile:15,215,8.9

Upper Quantile:45,240,9.2

Interquantile Range:30,25,0.3

Answer:

doc tor

Step-by-step explanation:

Answer:

Doc   tor

Step-by-step explanation:

Two syllable word

Answer:

Second and Last statements are true

Step-by-step explanation:

Probablity that it lands on red:-

1/5= 20

Probablity that it lands on green:-

2/4=40

Pls mark it as BRAINLIEST

Answer:

Number line graph with closed circle on 30 and shading to the right

because you already have 30 dollars and they need at least 120 but if they get more then 120 they can still hold the science fair.

THIS ANSWER ISN'T MINE. I TOOK IT FROM AN ANSWER TO THE SAME QUESTION ANOTHER USER POSTED.

Answer:

x=1

Step-by-step explanation:

y=x²-2x-8

First, we solve for the vertex

The equation for the vertex is -b/2a

Substitution:

-b/2a

=-(-2)/(2*1)

=2/2

=1

Therefore the equation for the line of symmetry is x=1

Hope this helps!

The dog walked 3 miles less in last week than this week.

An approximation is anything that is similar, but not exactly equal, to something else. A number can be approximated by rounding.

Given that, last week you walked your dog 12.405 miles. this week, you walked your dog 15 miles.

The dog walked in last week approx = 12 miles

The dog walked this week = 15 miles

The  fewer miles did he walked = 15-12 = 3

Hence, the dog walked 3 miles less.

For more references on approximation, click;

https://brainly.com/question/29669607

#SPJ1

Answer:

iv answered this question for you already in the other one

Step-by-step explanation:

hope you have a good day

Answer:

1/10

Step-by-step explanation:

Ok so 1/100= 10/100

Answer:

A.4

Step-by-step explanation:

The average length of a paperback book is 4.25 inches in height and 6.87 in length. So the options you have here are 4,8,14, and 18 inches the closest number to 6.87 in 4 inches. I hope my answer helps you a lot.  

Answer:

there are 4 before you can get 3.28.

As shown, 10^-1=1/10.

So, 1/10^-4 which makes it inverse,

10^4

Answer:

Step-by-step explanation:

there are 4 before you can get 3.28.

As shown, 10^-1=1/10.

So, 1/10^-4 which makes it inverse,

10^4

Answer:

πr + 2r

Step-by-step explanation:

Perimeter of Semicircle

The perimeter of a semicircle is the sum of the half of the circumference of the circle and diameter. As the perimeter of a circle is 2πr or πd. So, the perimeter of a semicircle is 1/2 (πd) + d or πr + 2r, where r is the radius.

Step-by-step explanation:

1. d = 22mm

circumference = πr + d

= 22/7 × 11 + 22

= 56.57 mm

2. r = 4 inches

circumference = πr + d

= 22/7 × 4 + 8

= 20.57 Inches

3. d = 10 yards

circumference = πr+d

= 22/7 × 5 + 10

Answer:

3/1 or 3:1 when simplified

so first number is three times larger then second number

Answer: 10,500

Step-by-step explanation:

How to calculate tax and earning

Given the following paramiters

Total amount earned by the student = $15000

Assume we have the following parameters

Earning paid off in taxes = $1500

Amount spent on living expenses = $3000

Amount she will have left = 15000 - (1500 + 3000)

Amount she will have left = 15,000 - 4500

Amount she will have left = 10,500

Hence the amount she will have left is $10,500

Answer:

$7,500

Step-by-step explanation:

First, find the amount he pays in taxes:

$15,000 x 0.1 = $1,500

Next, find the amount he pays in living expenses:

$15,000 x 0.4 = $6,000

Add the two amounts together:

$1,500 + $6,000 = $7,500

Subtract the combined amount from the original amount to find how much the student saved:

$15,000 - $7,500 = $7,500

Therefore, the college student saves $7,500.

Answer:

B

Step-by-step explanation:

%9 and 6 cm the glass ÷14

πcm }=. cm 9

thanks me later

The amount of water in Glass B to equal to 3 times of the amount water in Glass A

The volume is a measurement of three-dimensional space that is utilized.

Let r be the radius and h be the height of the cylinder and cone. Then the volume of the cylinder will be given as,

Volume of A = π r²h cubic units                       ...1

And the volume of the cone will be given as,

Volume of B = (1/3) × r²h cubic units       ...2

From equations 1 and 2

Volume of B = 3 x volume of A

The amount of water in Glass B to equal to 3 times of the amount water in Glass A

More about the volume link is given below.

https://brainly.com/question/1578538

#SPJ2

Answer:

-1, 0.5, 2, 3.5

Step-by-step explanation:

1.5 is added to the previous value for each value of the sequence. -2.5+1.5 is -1; -1+1.5 is 0.5, etc.

Answer:

-1, 0.5, 2, 3.5

Step-by-step explanation:

y=x+1.5

Hope this helps! :D

Answer:

12 feet

Step-by-step explanation:

80 / 5 = 16

1 inch = 16

16 / 4 = 4

4 * 3 = 12

Answer:

[tex] \: [/tex]

Step-by-step explanation:

It is given an equation and we are to find the value of x.

[tex] \: [/tex]

Given Equation :

[tex] \\ {\longrightarrow \qquad{ \sf{5x-10=3x+2}}} \\ \\ [/tex]

Subtracting 3x from both sides we get :

[tex]\\ {\longrightarrow \qquad{ \sf{5x-10 - 3x=3x - 3x+2}}} \\ \\ [/tex]

[tex] {\longrightarrow \qquad{ \sf{2x-10=2}}} \\ \\ [/tex]

Adding 10 to both sides we get :

[tex] \\ {\longrightarrow \qquad{ \sf{2x-10 + 10=2 + 10}}} \\ \\ [/tex]

[tex] {\longrightarrow \qquad{ \sf{2x=12}}} \\ \\ [/tex]

Dividing both sides by 2 we get :

[tex] \\ {\longrightarrow \qquad{ \sf{ \frac{2x}{2} = \frac{12}{2} }}} \\ \\ [/tex]

[tex] {\longrightarrow \qquad{ \frak{ \pmb{x=6}}}} \\ \\ [/tex]

Therefore,

Answer:

   = 6-

Step-by-step explanation:

:-

5 + -10 = 3 + 2

ℜ  :-

-10 + 5 = 3 + 2

ℜ  :-

-10 + 5 = 2 + 3

-10 + 5 = 2 + 3

  ''.

      ,      .

'-3'      .

-10 + 5 + -3 = 2 + 3 + -3

ℭ  : 5 + -3 = 2

-10 + 2 = 2 + 3 + -3

ℭ  : 3 + -3 = 0

-10 + 2 = 2 + 0

-10 + 2 = 2

'10'      .

-10 + 10 + 2 = 2 + 10

ℭ  : -10 + 10 = 0

0 + 2 = 2 + 10

2 = 2 + 10

ℭ  : 2 + 10 = 12

2 = 12

   '2'.

= 6

= 6

Hopes this helps~

~~

Answer:

I've labled all in red, hope this helps.

Answer:

I drew it for you.

Step-by-step explanation:

Pls give brainliest if I helped.

Answer:

A = (1,6)

B = (4,6)

C = (9,6)

D = (11,6)

Since it is a strait line on six, all the points should have 6 as y. For the x's, just count how much it is away from the y-axis.