Which expressions represent the "the sum of 3 and n"?
​Select all that apply.
A. 3n
B .n+3
C .3+n
D .n+n+n
E .n^3

Answer:

315

Step-by-step explanation:

819 miles/13 hours = 63 miles per hour

63 x 5 = 315

Answer:

5/11, 20/11

Step-by-step explanation:

a − 3b = −5

-3b = -a - 5

b = 1/3a + 5/3

3a + 2(1/3a + 5/3) = 5

3a + 2/3a + 10/3 = 5

11/3a + 10/3 = 5

11/3a = 5/3

a = 5/11

a - 3b = -5

5/11 - 3b = -5

-3b = -60/11

b = 20/11

Answer:

B=80

Step-by-step explanation:

B is the same answer as the number on the other side

Answer: C (4/24*3/23)

Step-by-step explanation:

4 red

12 green

8 black

24 total

pulling red on the first pull:

4/24

pulling red on the second pull:

3/23

so C

Answer:

x = 5

Step-by-step explanation:

Based on the tangent theorem, tangents drawn from an external point of a circle are equal.

This means:

4x - 1 = 2x + 9

Collect like terms

4x - 2x = 1 + 9

2x = 10

Divide both sides by 2

2x/2 = 10/2

x = 5

Answer:

they said If any two lines intersect several parallel lines, their segments

determined on one of the lines are proportional to the segments

corresponding in the other.

Step-by-step explanation:

I think they said that

the height of the rhombus is 12 inches

explanation: to find area you need to multiply langth times hight. 18×12=216

Answer:

h = 12 in.

Step-by-step explanation:

218 in.² ÷ 18 in.

12 in.

Answer:

x=1

Step-by-step explanation:

x+2=2x+1

x=1

sides of a square must be equal

Answer:

3a. yes

3b. y= 75x

3c. 600 mi

3d. 10 inches

Step-by-step explanation:

3a: if you divide the y by the x, you'd get 75 everytime, meaning it's proportional.

3b: y would equal the amount of inches multiplied by 75, so y=75x

3c: you can use the equation and substitute the x for 8, so y=75(8), giving you 600 miles

3d: you can also use the equation in reverse, if the actual miles is 750, then this is your y, so it would look like 750=75x and to solve you'd divide, 750/75, giving you 10 inches

Resposta:

180

Espero ter ajudado

Answer:

A = 19.135 yd²

Step-by-step explanation:

The area (A) of a triangle is calculated as

A = [tex]\frac{1}{2}[/tex] bh ( b is the base and h the perpendicular height )

Here b = 4.3 and h = 8.9 , then

A = 0.5 × 4.3 × 8.9 = 19.135 yd²

[tex]{\small{\mathcal{\underline{\underline{\purple{ here \: is \: your \: solution...}}}}}} \\ \\ [/tex]

[tex]\small\mathfrak\green{sin ( \alpha ) =Perpendicular \div hypotenuse \: \: } \\ \\ \small\mathfrak\green{perpendicular =7 \: } \\ \\ \small\mathfrak\green{hypotenuse =25 \: } \\ \\ \small\mathfrak\green{sin( \alpha ) = 7 \div 25}[/tex]

[tex]{\small{\underline{\bf{\red{ Hope \: it \: helps...}}}}}[/tex]

Answer:

1/10

Step-by-step explanation:

9514 1404 393

Answer:

  10

Step-by-step explanation:

The distance formula is useful.

  d = √((x2 -x1)^2 +(y2 -y1)^2)

  d = √((7 -1)^2 +(12 -4)^2) = √(6^2 +8^2) = √(36 +64) = √100

  d = 10

The distance between P and Q is 10.

_____

Additional comment

You may recognize the run : rise ratio of 6 : 8 = 3 : 4. This suggests a 3-4-5 right triangle with a scale factor of 2. If you're familiar with that Pythagorean triple, you can write down the answer as soon as you see the rise and run numbers.

Answer:51 minutes

Step-by-step explanation:

Answer:

14 friends

Step-by-step explanation:

3 x 14 = 42

42 + 8 = 50

Step-by-step explanation:

but you have to add or divide

Answer:

56.1

Step-by-step explanation:

Answer:

Step-by-step explanation:

312 divied by 12=26 so..

Answer:18

4x +108=180

Step-by-step explanation:

Answer:

x=18

Step-by-step explanation:

a straight angle is a total of 180 degrees so you subtract 108 from 180 to get 72 and then divide by 4 to get 18

Answer:

a)

The angle formed by intersecting chords is half of the sum of the intercepted arcs:

b)

The angle formed by two tangents is the half of the difference of the intercepted arcs:

Answer:

126.109,63 m

Step-by-step explanation:

Por conveniencia, todas las unidades se convierten a m

1000 m = 1 km

100 m = 1hm

10m = 1 presa

1 m = 1 m

10dm = 1m

100 cm = 1 m

1000 mm = 1 m

1m- (5dm3cm) (2hm4m) + 35dam (3hm6dam) + (8dam5m) (2m5dm6cm) -85cm

= 1m- (5/10 +3/100) (2 * 100 + 4m) + 35 * 10 (3 * 100 + 6 * 10) + (8 * 10 + 5m) (2m + 5/10 + 6/100 ) -85/100

= 1 m- (0.5 +0.03) (200 + 4m) +350 (300 +60) + (80 + 5m) (2m + 0.5 + 0.06) -85/100

= 1 m- (0,53) (204 m) +350 (360) + (85 m) (2,56) -85/100

= 1 m- (108,12 m) +126000+ (217,6) - 0,85

= 126.109,63 m

For convenience all units are converted to m

1000m = 1km

100 m= 1hm

10m = 1 dam

1m= 1m

10dm= 1m

100 cm= 1 m

1000 mm= 1m

1m-(5dm3cm) (2hm4m)+35dam (3hm6dam)+(8dam5m) (2m5dm6cm)-85cm

= 1m-(5/10 +3/100) (2*100 +4m)+35*10 (3*100 +6*10)+(8*10+5m) (2m+5/10+6/100)-85/100

= 1m-(0.5 +0.03) (200 +4m)+350 (300 +60)+(80+5m) (2m+0.5+0.06)-85/100

= 1m-(0.53) (204m)+350 (360)+(85m) (2.56)-85/100

= 1m-(108.12m)+126000+(217.6)- 0.85

= 126,109.63 m

Answer:

y = 0

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

−5(6+7y)=−5(6+y)

(−5) (6) + (−5) (7y) = (−5) (6) + (−5) (y) (Distribute)

−30 + − 35y = −30 + −5y

−35y − 30 = −5y −30

Step 2: Add 5y to both sides.

−35y − 30 + 5y = −5y −30 + 5y

−30y −30 = −30

Step 3: Add 30 to both sides.

−30y − 30 + 30 = −30 + 30

−30y = 0

Step 4: Divide both sides by -30.

−30y /−30  =  0 /−30

Answer:

2100

Step-by-step explanation:

Answer:

solve the equation by rewriting in exponential form using the definition of a logarithm and simplifying.

Exact Form:

x=  1/10000

Decimal form:

x=0.0001

Answer:

pete brought 63 carrots

Step-by-step explanation:

70 x .90 = 63

Answer:

1) There are 13 students in Jerry's study.

2) There are 39 students in Kathy's study.

3) Jerry's study is more trustworthy!

Step-by-step explanation:

1) Jerry's study is the one with the dot plot.

Now, the number of students is calculated by adding the total number of dots in the plot.

We have a total of 13 dots.

Thus, there are 13 students in Jerry's study.

2) Kathy's study is the one with the histogram.

The total number of students is gotten by adding the corresponding number of students on the y-axis for each range of distance on the x-axis.

Total number of students = 9 + 11 + 7 + 12 = 39 students

3) Jerry's study where he used a dot plot is likely to be more trustworthy because it gives exact values of the number of students for each distance represented whereas, Kathy's study where she used a histogram doesn't give exact values but just gives a range of distances for a particular number of people.