Which estimate is closest to the answer of this number sentence? 48 x 39 =

Answer:

A) V + 6 B = 372

B) 4V + 12B = 780

We'll divide B) by -4

B) -V -3B = -195 Then we add A)

A) V + 6 B = 372 which equals

3B = 177

1 Bus carries 59 Students

For the Van let's use equation A)

V + 6 * 59 = 372

Van = 372 -354

Each Van Carries 18 Students

Step-by-step explanation:

Answer:

2x + (2 × 6)

since we are expanding, we represent 2 multiplying to every expression in the given parentheses

Answer:

2x+12

Step-by-step explanation:

2(x + 6)​

Distribute

2*x + 2*6

2x+12

Answer:

Giselle has spent more than 1/2 of her parking money.

Step-by-step explanation:

Answer:

8 batches

Step-by-step explanation:

Take the total amount of cream and divide by the amount of cream per batch

6 ÷ 3/4

Copy dot flip

6 * 4/3

6/3 *4

2*4

8 batches

Answer:

1/4h

Step-by-step explanation:

The car trip is 1/2h shorter than the bus trip.

The bus trip is 3/4h long.

Therefore, the length of the car trip is:

3/4h - 1/2h = 1/4h

The car trip is 1/4h long.

Answer: $1296

Step-by-step explanation:

Surface area of s sphere = 4πx r^2

Diameter = 1/2 radius

Surface area = 4π x 12^2

= 1809.56 cm^2 = 18.096 m^2

Material required = 71.62 x 18.096

= $1296

Answer:

$13

Step-by-step explanation:

First step is to convert cm to metres (24cm/100=0.24m)

therefore diameter is now 0.24

SA= 4π^r2      r=d/2=0.24m/2= 0.12m

SA= 4π^(0.12)^2= 0.1809...m^2

So since the surface area of this basketball is 0.1809..m^2, we then must calculate how much it will cost for the material to cover for one basketball. (this is why converting is important because you can end up with the wrong price/answer)

$71.62/1m^2 =0.1809..m^2 =$12.96

They want it in nearest DOLLAR  so final answer is $13 to make one basketball

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Answer:

A. Because he doesn’t like to eat Chinese food too much in a short period of time, p is not really the same for each trial and so we cannot use the binomial distribution to calculate the desired probability.

Step-by-step explanation:

As it is mentioned in the question that he doesn't like the Chinese too much in a very short interval so he prefers various other foods for dinner

So now we have to determine the probability for the next 7 days

So based on the options mentioned, we prefer option A as we do not use the binomial distribution here as it shows only success results that are not confirmed in the given case

Therefore, the correct option is A.

Answer:

37 apples

Step-by-step explanation:

just add 5 to 32

Answer:

72

Step-by-step explanation:

Oranges:Apples

4:9

4*8:9*8

32 oranges:72 apples

Answer:

20

Step-by-step explanation:

Angle EAC and angle GCJ are corresponding angles.

So angle EAC is equal to 70 degrees.

Angle KAE is a right angle, so it is 90 degrees.

Angles on a line add up to 180 degrees.

x + 90 + 70 = 180

x = 180 - 160

x = 20

Answer:

The measurement of ∠x is 20°

Step-by-step explanation:

From this problem, we are given a few pieces of information. First we know that DE is parallel to FG. We also know that KL is perpendicular to FG. Perpendicular means that the angles from KL and FG are going to form right angles.

So, knowing this, we can start off my saying that the measurement of ∠KAE is 90°.

We can also say that the measurement of ∠IAD is 70° because it is correspondent to ∠JCG and corresponding angles have the same measurements.

So, now we can find x. Set up equation.

70 + x + 90 = 180

Add 70 to 90.

x + 160 = 180

Subtract 160 on both sides.

x = 20

So, the value of x is 20°

Answer:

lines NP and OP are intersecting

Step-by-step explanation:

they touch at point P

Answer:

12

5

13

Step-by-step explanation:

Answer:

190 cards

Step-by-step explanation:

Elle, Jonah and Mandy shared the game cards in the ratio 2 : 3 : 7. The total ratio is:

2 + 3 + 7 = 12

If they were shared equally, they would each receive 152 cards, this means that the total number of cards they received is:

152 * 3 = 456 cards

Elle's share is therefore:

2 / 12 * 456 = 76 cards

Mandy's share is:

7 / 12 * 456 = 266 cards

Therefore, the number of cards that Many received more than Elle is:

266 - 76 = 190 cards

[tex]a_{n+1}=a_n+n[/tex]

The formatting was a bit confusing, so please do let me know if this isn't the correct equation for the sequence.

The first term is given, which is

[tex]a_1=-9[/tex]

Now, use the equation for the next terms:

[tex]a_{1+1}=a_2=-9+1=-8[/tex]

[tex]a_{2+1}=a_3=-8+2=-6[/tex]

[tex]a_{3+1}=a_4=-6+3=-3[/tex]

Thus, the first 4 terms are -9, -8, -6, and -3. Let me know if you need any clarifications, thanks!

Answer:

105 degrees

Step-by-step explanation:

Angle DEF measures 75°.Triangle DEF is an isosceles, so AngleDEF Is-congruent-toAngleDFE.

the angles all together is 180 degrees

so 180 - 75 = 105 degrees

The measure of angle CFD is 105 degrees.

The angle sum property of a triangle states that the sum of the interior angles of a triangle is 180 degrees.

Angle DEF = 75°.

Triangle DEF is isosceles, so Angle DEF Is-congruent-to Angle DFE.

Angle DFE + Angle CFD = 180  (angle on a straight line)

so 180 - 75 = 105 degrees

Thus, Angle CFD = 105 degree

Learn more about the triangles;

https://brainly.com/question/2773823

#SPJ2

Answer: b⁶

Step-by-step explanation:

The for bⁿ can be optained by multiplying 3 and 2. If there is an exponent on the outside of the parenthesis, you multiply it with the exponent on the inside.

(b³)²=b³ˣ²=b⁶

Answer:

Step-by-step explanation:

If you were to graph this on a coordinate plane, it looks like a log function. It starts at (0, 0) and ends, according to the boundaries given, at x = 8. Because we are to solve for the volume using the shell method, we need x = y equations (which we have, thankfully!) and y intervals. The y-interval is given to us within the problem as 0≤y≤2. If we are to revolve this solid about the line y = 2, the line of rotation is above the solid, so we have to go backwards to get there. That's very important. The formula we need for shells is

[tex]2\pi\int\limits^2_0 {p(y)h(y)} \, dy[/tex]

where p(y) is the distance between the axis of rotation and the solid, and h(y) is the height of the representative rectangle. Since we are using the shell method, the representative rectangle is parallel to the axis of rotation, so it is 8 units long (or high).

p(y) is the distance from y = 2 to the solid, so p(y) = 2 - y

h(y) is the length of the representative rectangle, so h(y) = 8

and filling in the formula:

[tex]2\pi\int\limits^2_0 {(2-y)(8)} \, dy[/tex] and simplifying a bit:

[tex]2\pi\int\limits^2_0 {16-8y} \, dy[/tex]

Integrating we get

[tex]2\pi[16y-4y^2][/tex] from 2 to 0. Using the First Fundamental Theorem of Calculus:

[tex]2\pi[(32-16)-(0)][/tex] simplifies to

[tex]2\pi(16)[/tex] which is, finally,

[tex]V=32 \pi[/tex]

In this exercise we have to use the fundamental calculus theorem to calculate the volume of a rotating cylinder, thus we find that:

[tex]V=32\pi[/tex]

If you were to graph this on a coordinate plane, it looks like a log function. It starts at (0, 0) and ends, according to the boundaries given, at x = 8. Because we are to solve for the volume using the shell method, we need x = y equations  and y intervals. The y-interval is given to us within the problem as 0≤y≤2. If we are to revolve this solid about the line y = 2, the line of rotation is above the solid, so we have to go backwards to get there. That's very important. The formula we need for shells is

[tex]2\pi \int\limits^2_0 {p(y)h(y)} \, dy[/tex]

Where p(y) is the distance between the axis of rotation and the solid, and h(y) is the height of the representative rectangle. Since we are using the shell method, the representative rectangle is parallel to the axis of rotation, so it is 8 units long (or high).

and filling in the formula:

[tex]2\pi \int\limits^2_0 {16-8y} \, dy[/tex]

Integrating we get;

[tex]2\pi [ 16y-4y^2][/tex]

Using the First Fundamental Theorem of Calculus:

[tex]2\pi [ (32-16)-(0)][/tex]

[tex]2\pi (16) \\V=32\pi[/tex]

See more about volume at brainly.com/question/1578538

Answer: The graph is a linear graph or linear function in the form y= mx + b where m is the slope and b is the y-intercept. You could plot the points (0,5) (1,4) (2,3) (4,1)  and draw a straight line through them.

Step-by-step explanation:

The equation  y= 5-x  can be rewrite as  y = -1x + 5  and it can be identify as a linear equation in slope intercept form. Now you could plot in any value  of x and solve for y.

x        y         (x,y)

0       5          (0,5)   If you put in 0 for x y will be 5

1       4            (1,4)    if you put in 1 for x,  y will be 4

2      3            (2,3)  if you put in 2 for x, y will be 3

4       1             (4,1)   if you put in 4 for x, y will be  1

5       0             (5,0)  if you put in 5 for x y will be 0.

What we do is simply replace every n with k+1. So (3n)^2 turns into (3(k+1))^2

We see that only choice A has the correct term mentioned on the left hand side, so this must be the answer.

The right hand side is treated the same way. We plug in n = k+1. Your teacher did a bit of algebraic manipulation to get what is shown for choice A.

Answer: 7, 14, 21, 28

Step-by-step explanation:

Let first multiple = x

So, second multiple = x + 7

Third = x + 14

Fourth = x + 21

According to the question,

=>x + (x + 7)+ (x + 14) + (x + 21) = 70

=>4x + 42 = 70

=>4x = 28

=>x = 7

So, the multiples are 7(x), 14(x+7), 21(x+14), 28(x+21)

Answer:

27

Step-by-step explanation:

9 is not a perfect cube.

18 is not a perfect cube.

27 is a perfect cube.

∛27 = 3

36 is not a perfect cube.

Answer:

27

Step-by-step explanation:

We want a number time itself times itself

27 = 3*3*3

27 = 3^3

Answer:

The correlation coefficient of the data set is -0.901

Step-by-step explanation:

x           y            xx          xy          yy

1         20            1            20         400

3        14             9           42          196

5        10            25          50          100

9         6            81           54           36

15       4            225         60           16

[tex]\sum x = 1+3+5+9+15=33\\\sum y =20+14+10+6+4=54\\\sum x^2 =1+9+25+81+225=341\\\sum y^2=400+196+100+36+16=748\\\sum xy=20+42+50+54+60=226[/tex]

Formula :[tex]\frac{N \sum XY - (\sum X)(\sum Y)}{\sqrt{N\sum X^2 - (\sum X)^2}\sqrt{N \sumY^2 - (\sum Y)^2)}}[/tex]

[tex]= \frac{5 (226) - (33)(54)}{\sqrt{5(341)- (33)^2}\sqrt{5 (748) - (54)^2}}\\=-0.901[/tex]

So, Option D is true

Hence the correlation coefficient of the data set is -0.901

Answer:

A) rm - n is the answer.

hope this helps

Answer:

D

Step-by-step explanation:

rm/rn can be factored into r(m/n) which is what is seen in answer D

Answer:

Heres a screenshot with the answers I got from someone who commented:

Edit: Credits- saltern20333

Answer:

Step-by-step explanation:

Answer:

240, 360, 800

Step-by-step explanation:

We can call the numbers 3x, 7x, and 10x and then we can write:

3x + 7x + 10x = 1600

20x = 1600

x = 80 so the numbers are 3 * 80 = 240, 7 * 80 = 560 and 10 * 80 = 800.

Answer:

2x/5x= 7

Step-by-step explanation:

Answer:

8.45

Step-by-step explanation:

You add the ones place together:

1 + 6 = 7

You add the tenths place together:

0.5 + 0.8 = 1.3

You add the hundredths place together:

0.07 + 0.08 = 0.15

Then you combine them all together to get 8.45

Answer:

x=8

Step-by-step explanation:

If the two rectangles have the same area, then you have to first find the area to solve the problem. To find the area, do 6(Length)x4(Width)=24. So now that we know that the area is 24, now all you have to do is divide 24 by 3 to find the missing dimension. 24÷3=8. Therefore, x=8.

Answer:

symmetric property

Step-by-step explanation:

because if we say

a=b and b=a

we referred to symmetric property

Answer:

See explanation

Step-by-step explanation:

Distance Formula: [tex]d = \sqrt{(x2 - x1)^2+(y2-y1)^2}[/tex]

Isosceles Triangle: 2 sides are the same

[tex]d = \sqrt{(4 - 7)^2+(-3-3)^2} = 3\sqrt{5}[/tex]

[tex]d = \sqrt{(10-4)^2+(-3+3)^2} = 6[/tex]

[tex]d = \sqrt{(10-7)^2+(-3-3)^2} = 3\sqrt{5}[/tex]

Since we have 2 distances between the vertices the same, we have an isosceles triangle.

Answer:

75%

Step-by-step explanation:

Percent yield = experimental yield / theoretical yield * 100

= 900 / 1200 * 100   (remember that 1,000 g = 1 kg)

= 75