please i need help and i need need need this.

Answer:

Bicycle: 30 miles/hour

Scooter: 40 miles/hour

Step-by-step explanation:

Let the speed of the bicycle be s,

Then the speed of the scooter is:

s + 10

Distance = speed × time

Distances covered:

Bicycle: (s)(5½) = 5.5s

Scooter: (s + 10)(3) = 3s + 30

Total:

5.5s + 3s + 30

8.5s + 30

8.5s + 30《285

8.5s《255

s《30

s + 10《40

Answer:

this would not not be a valid conclusion because only that class was included In the poll not the entire school. Another method to determine the most popular subject is to include every class(the entire school)in the poll

Answer:

1) biased sample

2) random sampling

Step-by-step explanation:

Since the results are based on feedback of students in only one class, it's not a good representative of the entire student body.

Also, since it's a math class there will be a bias.

Better method would be randomly selecting students from the entire school students list and take their feedback

Answer: Would be 55% I hope this helps!

Answer:

55% of the actors are between the ages of 10-12.

Step-by-step explanation:

1. Add all of the frequencies

8+22+10=40

2. Divide the certain frequency by the total amount

22/40=0.55

3. Multiply by 100

0.55*100= 55%

Answer: 1. 144

2. a

3. 790.05

4. 1.5

5. lenght width and height 4/5 = 24

Step-by-step explanation:

Answer:

5.5

Step-by-step explanation:

Mean means the sum of given variables divided by the numbers

So to calculate the mean,it will be

4+5+6+7/4

=22/4

Divide both by

= 11/2

We can actually Leave the answer as 11/2 or we can leave as a decimal form

5.5

So the final answer is 5.5

1279.2

Hoping this helps

Answer:

Step-by-step explanation:

If the two factors are identical, their product will be a perfect square.

If one of the factors is the difference of terms that are summed in the other factor, the product will be the difference of squares.

  (a +b)(a -b) = a² -b² . . . . . matches the 1st and 6th choices

  (a +b)(a +b) = (a +b)² . . . . matches the 2nd and 5th choices

Answer:

1, 2, 5 & 6  on ED2020

Box 1       (5X+3)(5X-3)

Box 2      (7X+4)(7X+4)

Box 3 - NO

Box 4 - NO

Box 5      (X-9)(X-9)

Box 6      (-3X-6)(-3X+6)

Step-by-step explanation:

Answer:

108

Step-by-step explanation:

Final answer:

The new rectangle formed by tripling the size of the original 13 feet by 4.3 feet rectangle has an area of 503.1 square feet, which is nine times larger than the original area.

Explanation:

To understand the scaling of the area of a rectangle when its dimensions are tripled, we need to recognize that the area of a rectangle is calculated by multiplying its length by its width.

The original rectangle has a length of 13 feet and a width of 4.3 feet, thus the area can be found by multiplying these two dimensions: 13 feet × 4.3 feet = 55.9 square feet.

When we triple both the length and width to create a new rectangle, the new dimensions will be 13 feet × 3 = 39 feet (length) and 4.3 feet × 3 = 12.9 feet (width). To find the new area, simply multiply these new dimensions: 39 feet × 12.9 feet = 503.1 square feet.

Therefore, the area of the new rectangle is 503.1 square feet, which is nine times larger than the original area because the area is proportional to the square of the scaling factor (3² = 9).

Answer:

The three situations that the formula can be applied to include two secants intersecting the circle, a secant and a tangent intersecting the circle, and two tangents intersecting the circle. All three types of situations contain two lines intersecting to form an angle, as well as two intercepted arcs.

Step-by-step explanation:

Final answer:

The greatest possible value of an odd integer less than -3.25 is -5.

Explanation:

Odd integers: An odd integer is not divisible by 2 and can be represented as 2n + 1 where n is an integer.

To find the greatest possible value of an odd integer less than -3.25, we need to consider the closest odd integers to -3.25, which are -5 and -3. Since the integer must be less than -3.25, -3 is not an option as it is greater. The next possible odd integer that is less than -3.25 is -5. Therefore, the greatest possible value of n that satisfies the condition is -5.

Answer:

The measure of arc MN is 88 degrees

Step-by-step explanation:

The complete question in the attached figure

we know that

The measure of the interior angle is the semi-sum of the arches that comprise it and its opposite

so

[tex]m\angle NQM=\frac{1}{2}(arc\ MN+arc\ LP)[/tex]

we have

[tex]m\angle NQM=103^o[/tex]

substitute

[tex]103^o=\frac{1}{2}(arc\ MN+arc\ LP)[/tex]

[tex]206^o=arc\ MN+arc\ LP[/tex] ----> equation A

Remember that

The measure of arc LP is 30 degrees more than the measure of arc MN

so

[tex]arc\ LP=arc\ MN+30^o[/tex] ----> equation B

substitute equation B in equation A

[tex]206^o=arc\ MN+arc\ MN+30^o[/tex]

[tex]2arc\ MN=206^o-30^o\\2arc\ MN=176^o\\arc\ MN=88^o[/tex]

The measure of MN is 88 degrees

From the diagram shown, the formula expressed below will be used to determine the measure of MN.

<NMQ = 1/2(arcLP + arcMN)

If the measure of LP is 30 degrees more than the measure of MN, then;

arcLP = 30 + arcMN

<NMQ = 1/2(30 + arcMN + arcMN)

2(103) = 30 + 2arcMN

206 - 30 = 2arcMN
arcMN = 88 degrees

Hence the measure of MN is 88 degrees

Learn more on circle geometry here: https://brainly.com/question/26594685

Answer:

(2,-2)

Step-by-step explanation:

To solve this using substitution you would take your second equation and plug it in for y of the first equation (4x-10= -3x+4). You then would add the 10 over (4x= -3+14). Next you add the 3x over(7x=14). Finally divide both sides by 7, which should give you x=2. Now all you have to do is plug the two in for x in one of your equations (which ever equation you prefer) (y=-3(2)+4). Solve the equation and you will then have the answer to y, which you can then put into a point.

Answer:

(2,-2)

Step-by-step explanation:

4x-10=-3x+4

+10           +10

4x=-3x+14

+3x . +3x

7x=14

/7  /7

x=2

y=4(2)-10

y=8-10

y=-2  

sorry i took so long i was cooking pasta

Answer:

9 units

Step-by-step explanation:

To find the length of a side of a square, you need to square root the area

√81 = 9

Final answer:

The length of a side of a square with an area of 81 square units is found by taking the square root of the area, which is 9 units.

Explanation:

To find the length of a side of a square whose area is 81 square units, we use the formula for the area of a square, which is side length squared ([tex]s^2[/tex]). To solve for the side length, we take the square root of the area.

The area in this case is 81 square units, so the side length 's' will be:

√81 = 9 units

Therefore, the length of a side of the square is 9 units.

Answer:

90 or right angle

Step-by-step explanation:

Answer:

90

Step-by-step explanation:

A triangle has to have 180 degrees

so 180 - 90 = 90

Answer:

Refer to the explanation!

Step-by-step explanation:

We know the the angle where the ladder touches the wall at the top is a 70 degree angle, which must mean that the ladder touching the floor would be a 20 degree angle. This would be OPPOSITE / ADJACENT or TANGENT (TAN).

The TAN(20) = 2.2, when 2.2 is multiplied by the height of the ladder (1.4), you get 3.08 but rounding to the nearest tenth of a meter gives you 3.1m as the length of the ladder.

Answer: 3.1m

The length of the ladder is 4.1 meters.

The ladder and the wall forms a right-angled triangle. The ladder is represented with the hypotenuse of the triangle. The distance of the ladder from the wall is the base of the triangle.

In order to determine the length of the ladder, the acronym SOCAHTOA would be examined. We are to determine the hypotenuse given the adjacent side. So cos would be used.

Cos 70 = adjacent / hypotenuse

cos 70 = 1.4 / h

0.3420 = 1.4/h

h = 1.4 / 0.3420

h = 4.1 meters

A similar question was answered here: https://brainly.com/question/17131959?referrer=searchResults

Answer:

10⁵

Step-by-step explanation:

100000 = 10⁵

Answer:

18=x*.20

15=x*.25

12=x*.30

24=x*.40

39=x*.60

78=x*.30

Step-by-step explanation:

To solve for x on each, divide the number on the left of the equal side by the number x is being multiplied by.  For example, 18/.20=x

Answer:

a. 90

b. 60

c. 40

d. 60

e. 65

f. 260

Step-by-step explanation:

a. 18*100= 1800/20=90

b. 15*100= 1500/25= 60

c. 12*100= 1200/30= 40

d. 24*100= 2400/40= 60

e. 39*100= 3900/60=65

f. 78*100= 7800/30= 260

It is Jada with a mad of 1.5.

Answer:

b

Step-by-step explanation:

Answer:

3,413.841

Step-by-step explanation:

you times 628.7 by 5.43 and then you get your answer

Answer:

3413.841

Step-by-step explanation:

Answer:

Add 2 to each side

x=1/2

Step-by-step explanation:

(3√8x - 2 )= 4

Add 2 to each side

(3√8x - 2 +2= 4+2

3√8x = 6

Divide each side by 3

3/3√8x = 6/3

√8x = 2

Square each side

(√8x)^2 = 2^2

8x = 4

Divide each side by8

8x/8 = 4/8

x = 1/2

Answer:

Cube is the correct answer

Step-by-step explanation:

Answer: 94.2

Step-by-step explanation: If pie were to equal 3.14 then you would multiply 30 and 3.14 and that would equal your answer

Answer:

94.26

Step-by-step explanation:

General formula for the circmference of a circle=2πr

π=3.142

Diameter is given in the question so to determine the radius

Radius=diameter/2

Radius=30/2

Radius=15

Circumference=2πr

=2×3.142×15

=94.26

So the final answer is 94.26

Answer:

90% or 90.02%

Step-by-step explanation:

multiply by 100 to get it as a percent

Answer:

[tex]\huge\boxed{0.9002=90.02\%}[/tex]

Step-by-step explanation:

[tex]p\%=\dfrac{p}{100}\to p=p\cdot100\%\\\\0.9002=0.9002\cdot100\%\qquad\text{move the decimal two place to the right}\\\\=90.02\%[/tex]

Step-by-step explanation:

c???, it cant change the shape of something in a reflection, cause its literally a mirror image

BRAINLIEST PLZ

5*-1

-2.5*2

2.5*-2

-5*1

Answer:

-5*1

-1*5

2.5*-2

-2.5*2

Step-by-step explanation:

Answer:28 units sq

Sorry forgot to divide by 2 on triangle 16+8+4=28

Step-by-step explanation:

Answer: cup is $2.55

Saucer $0.55

Step-by-step explanation:

Cost of cup and saucer is $3.10

Let the cup be x

And saucer be y

I.e

X+y= 3.10......equation 1

Cup which is X is $2 more than the saucer

I.e x=2+y......equation 2

Substitute for X in equation 1

(2+y)+y=3.10

2+2y=3.10

2y=3.10-2

2y=1.10

Y=1.10/2

Y=$0.55

Substitute for y in equation 2

X=2+y

X=2+0.55

X=$2.55

Therefore

The cup is $2.55

The saucer is $0.55

Step-by-step explanation:

[tex]2 \times \pi \: \times r = 18 \\ \frac{2\pi \: r}{2\pi} = \frac{18}{2\pi} \\ r adius= 2.86in \\ diameter = 5.72in[/tex]

Answer: radius= 2.866

Diameter = 5.732

Step-by-step explanation:

Circumference of a circle is 2pir

Circumference = 2pir

Circumference =18inch

18=2pir

Pi= 3.14

18= 2×3.14×r

R= 18/2×3.14

R= 2.866

R= ~3inches

Diameter = 2radii

Diameter= 2×radius

Diameter = 2×2.866

Diameter = 5.732

Diameter = ~6