I need help PLEASE HELP ME

Answer:

8/17

Step-by-step explanation:

total students = 34

no of girls = 16

no of boys = 18

probability to choose a girl to answer the question = no of girls/total students

=16/34

=8/17

Answer:

D or C

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

The graph goes up meaning it is positive.

Answer:

A

Step-by-step explanation:

Check the solution by substituting x = [tex]\frac{\pi }{2}[/tex] into the left side of the equation

2sin²x - sinx - 1

= 2sin²([tex]\frac{\pi }{2}[/tex] ) - sin ([tex]\frac{\pi }{2}[/tex] ) - 1

= 2(1)² - 1 - 1

= 2 - 1 - 1

= 0

= right side

[tex]\frac{\pi }{2}[/tex] is therefore a solution to the equation

Answer:

A

Step-by-step explanation:

Happy Pride Month!

Answer:

320m

Step-by-step explanation:

let the two runners be A and B

with Va and Vb as their velocities

velocity=distance/time

Va=720/4*60

=3m/s

Vb=720/5*60

=2.4m/s

Let the 2 runners start from a common position X and meet at Y

so the 2 consecutive meetings happen at X and Y

so we have to find time of meeting at Y as we know that of X (which is t=0)

720=Va*t+Vb*t

t(5.4)=720

t=133.33 or t=720/5.4

therefore distance travelled by B =Vb*t

=2.4*720/5.4

=319.99m

=320m

Question 1 (The wood question)

Answer: 14 7/8

Explanation: (see attached photo!)

Question 2 (The graph question)

Answer: multiply the number of weeks by 3

Explanation: Look at the point where it's between 2 and 4

I hope this helps!

Answer:

6cm

Step-by-step explanation:

Given data

Width= 4.6cm

Length= 9cm

Volume= 82.8cm^3

The expression for the volume is given as

V= lwh/3

82.8= 9*4.6*h/3

cross multiply

82.8*3= 9*4.6*h

248.4= 41.4h

h= 248.4/41.4

h= 6cm

Answer:

It depends on how many you need

Step-by-step explanation:

Any combination of these numbers works! If you want to know HOW MANY total combinations there are, there are 720

Answer:

b°+90°=180°(sum of angle in straight line)

b°=180°-90°

b°=90°

a°=30°(vertically opposite angle)

Answer:

A: 30 degrees

B: 60 degrees

C:105 degrees

Step-by-step explanation:

A: vertical angles are congruent

B: solve for the missing angle -- 90+30+?=180

C: Use exterior angle to find the supplementary angle

Answer:

6×4

2×12

8×3

Step-by-step explanation:

I know!

Answer:

21

Step-by-step explanation:

The values for the third side of a triangle must be greater than the difference of the two other sides and less than the sum of the two other sides

12 -8 < x < 12+8

4 < x < 20

The third side cannot be 21

Answer:

21

Step-by-step explanation:

The sum of two sides of a triangle must be greater than the third side

Answer:

Step-by-step explanation:

Answer:

[tex]x=5,\:x=-11[/tex]

Step-by-step explanation:

We solve this with the quadratic formula.

[tex]x_1=\frac{-6+16}{2\cdot \:1},\:x_2=\frac{-6-16}{2\cdot \:1}[/tex]

-

Answer:

The answer is 3

Step-by-step explanation:

It's just wisdom I mean think about it it

1.5 then 3

⭐ Initially, we have to find the reason why it was -1.5:

[tex]\large {\text {$ \sf f (n+1) = -2 f(n) $}}[/tex]

➡️ Having n, then we'll find the value of n, then we'll replace it with the found result.

[tex]\large {\text {$ \sf f (x+1) = -2.x = -1,5 $}}[/tex]

⌛ So, we will have to find what x is worth in this case:

[tex]\large {\text {$ \sf f ( 0,75 +1 ) = -2 \cdot 0,75 $}}[/tex]

[tex]\large {\text {$ \sf f ( 0,75) = -1,5 $}}[/tex]

→ Knowing this...

[tex]\large {\text {$ \sf f ( 1,5 + 1 ) = -2 \cdot 1,5 $}}[/tex]

[tex]\large {\boxed {\boxed {\sf f ( 2,5 ) = -3 }}}[/tex]     [tex]\checkmark[/tex]

_____________________________

Answer:

3. 4 meters

6. wrong, it should be 7000 meters

7. 2 dm > 10 cm

8. 30 cm = 3 dm

9. 6 km > 5000 m

10. 8 m < 90 dm

Step-by-step explanation:

__________

Answer:

3)40 decimeter = 4 meters

6)Jacob is incorrect because 7 kilometer does not equal 700 meters. The right answer would have been 7000 meters.

7)2 decimeters > 10 centimeters

8) 30 centimeters = 3 decimeters

9) 6 kilometers > 5,000 meters

10)8 meters < 90 decimeters

Hope this helped :)

Answer:

x = 101/20, y = 1/4

Step-by-step explanation:

Solve the following system:

{-y + 5 x = 25 | (equation 1)

3 y + 5 x - 1 = 25 | (equation 2)

Express the system in standard form:

{5 x - y = 25 | (equation 1)

5 x + 3 y = 26 | (equation 2)

Subtract equation 1 from equation 2:

{5 x - y = 25 | (equation 1)

0 x+4 y = 1 | (equation 2)

Divide equation 2 by 4:

{5 x - y = 25 | (equation 1)

0 x+y = 1/4 | (equation 2)

Add equation 2 to equation 1:

{5 x+0 y = 101/4 | (equation 1)

0 x+y = 1/4 | (equation 2)

Divide equation 1 by 5:

{x+0 y = 101/20 | (equation 1)

0 x+y = 1/4 | (equation 2)

Collect results:

Answer: {x = 101/20, y = 1/4

Answer:

Angles 5 and 6 are next to each other and sum up to 180°.

Step-by-step explanation:

supplement means adding up to 180

Angles 5 and 6 are next to each other and sum up to 180°.

Step-by-step explanation:

supplement means adding up to 180

Answer:

B)  M-5

Step-by-step explanation:

the commutative property does not apply to subtraction or division, only addition and multiplication

Step-by-step explanation:

please see the attachment

Answer:

length:70cm

breadth:15cm

Step-by-step explanation:

170cm÷2=85cm

85cm=14:3

14+3=17

85cm÷17=5cm

5cm×14=70cm

5cm×3=15cm

Answer:

the second part to the question is 17

Step-by-step explanation:

edge 2021 :)

have a lovely day!

Answer:

Step-by-step explanation:

11 ÷ 4 = 2 + 2 = 4

1 + 4 + 4 = 9

19 ÷ 4 = 4

Answer:

18 N

Step-by-step explanation:

Let F denote the force, m denote the mass of the object and a denote the acceleration of the object.

[tex]F=ma[/tex]

[tex]m = \frac{F_{1} }{a_{1} }=\frac{63}{7} =9 kg[/tex]

[tex]F_{2} =ma_{2}=9*2=18N[/tex]

Answer:

(x−10)(x^2+10x+100)

Explanation:

I talked to my partner, you can call them "G00gle"

[tex] \large{ \tt{❃ \: EXPLANATION}} : [/tex]

[tex] \large{ \tt{❁ \: LET'S\: START}} : [/tex]

[tex] \large{ \bf{ ❀ \: \ {x}^{3 } - 1000}}[/tex]

- Write the number into the exponential form with the exponent 3 :

[tex] \large{ \bf{↦ {x}^{3} - {10}^{3} }}[/tex]

- Here , Suppose ' x ' as ' a ' & ' 10 ' as ' b '. Use the formula of a³ - b³ :

[tex]↦{ \large{ \bf{(x - 10)( {x}^{2} + x \times 10 + {10}^{2} }}})[/tex]

[tex]↦ \boxed{\large{ \bf{(x - 10)( {x}^{2} + 10x + 100) }}}[/tex]

ツ Hope I helped! ۵

☼ Have a wonderful day / evening ! ☃

# StayInAndExplore ! ☂

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Answer:

x= 15

Step-by-step explanation:

Answer:

(-4,2)

Step-by-step explanation:

It's the coordinates that the two lines cross at.

Answer:

y = -3x+ 4

one equation two unknows can not solve uniquely

4y = -12x + 16

y = -3x+ 4

is the solution set

Step-by-step explanation:

Answer:

[tex]x = \frac{ 16 - 4y}{12}[/tex]

Step-by-step explanation:

12x + 4y = 16

12x + 4y - 4y = 16 - 4y

12x = 16 - 4y

[tex]\frac{12x}{12} = \frac{ 16 - 4y}{12}[/tex]

[tex]x = \frac{ 16 - 4y}{12}[/tex]

Answer: Coupon B gives the lower price

The price of coupon B is  3.75 dollars   less than the price of coupon A.

======================================================

Explanation:

15% off means she saves 15% of the original price.

15% of 95 = 0.15*95 = 14.25

Rachel saves $14.25 if she goes with coupon A.

We can see that coupon B gives the lower price because we have more in savings (since 18 is larger than 14.25).

If she goes with option A, then she spends 95-14.25 = 80.75 dollars. If she goes with option B, then she spends 95-18 = 77 dollars. Going with option B means she saves 80.75-77 = 3.75 dollars

Or you could note that 18-14.25 = 3.75 is another way to find out how much is saved when comparing the two coupons.

Answer:

d. 360°

Hope this help!

Answer:

H: 41

Step-by-step explanation:

upfront charge = 36

each cone costs .52

sell price 1.40

(sell price - cone cost) * number of cones - upfront cost =0 to find where break even is

-36+(1.40-.52)*x=0

-36+.88x=0

.88x=36

x=40.90

need to round up to break even to 41

Answer:

Option C 41 is correct answer.

Given:

Cost of rent of the equipment = 36 $

Cost on ingredients of each cone = 0.52 $

Selling price of each cone = 1.40

To find:

Number of cones(let = x) joel must sell in order to make a profit?

1.40x > 36+ 0.52x

subtracting 0.52 x from both the side,

1.40x - 0.52x > 36

0.88x > 36

dividing both side by 0.88,

x > 36/0.88

x> 40.909090....~ 41

Option C 41 is correct answer.

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