What is the value of the expression
3.6x10"
1.2x10
O 2.4 x 105
03.0 x 1011
O 3.0 x 105
2.4 104


Please help

Answer:

D or C

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

The graph goes up meaning it is positive.

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:

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:x

=4

permiter=6

area=24

Step-by-step explanation:

Answer:

x = 8, area = 364 km^2, perimeter = 80 km

Step-by-step explanation:

to start, we have to recognize that opposite sides of a rectangle are congruent.

therefore ➪

2x + 10 = 4x - 6

2x + 16 = 4x

16 = 2x

x = 8

now just plug that in and you'll find ➪

length = 26km

width = 14km

area = l * w

area = 26 * 14

area = 364 km^2

perimeter = 2(l + w)

perimeter = 2(14+26)

perimeter = 80 km

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:

Step-by-step explanation:

11 ÷ 4 = 2 + 2 = 4

1 + 4 + 4 = 9

19 ÷ 4 = 4

Answer:

(-4,2)

Step-by-step explanation:

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

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:

Step-by-step explanation:

angle 4 is congruent to angle 4 because they are alternate interior angles.

angle 5 is congruent to angle 3 because they are alternate interior angles.

angle 1+angle 2+angle 3 is equal to (=) angle 1+angle 2+angle 3

angle 1+angle 2+angle 3=180 degree(being sum of interior angles of a trianngle)

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:

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:

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:

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:

x= 15

Step-by-step explanation:

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:

49.54

Step-by-step explanation:

Take the new price and add the amount that it was reduced by to get the original amount

47.25+2.29

49.54

That was the original price

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:

Answer:

x = 10

Step-by-step explanation:

The secant- secant angle 3x is half the difference of the intercepted arcs, that is

3x = [tex]\frac{1}{2}[/tex] (4x + 50 - 30 )

3x = [tex]\frac{1}{2}[/tex] (4x + 20) = 2x + 10 ( subtract 2x from both sides )

x = 10

Answer:

6.11 ft

Step-by-step explanation:

s = (∅/360) * 2πr

s = (35/360) * 2π(10)

s = 6.108652382

Rounded

s = 6.11 ft

Answer:

Then the solution is (-1/4, 3)

Step-by-step explanation:

Start by eliminating the fractional coefficient 1/4:  multiply all 3 terms in the second equation by 4.  This results in equation (b), below:

4x - 3y = -10   (a)

4x = y -4         (b)  

Substitute y - 4 for 4x in equation (a):

y - 4 - 3y = -10

Combining like terms, we get -2y = -10 + 4, or -2y = -6, or y = 3.

Since x = (1/4)y - 1, if y = 3, then x = (1/4)(3) - 1, or x = 3/4 - 1, or x = -1/4

Then the solution is (-1/4, 3)

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:

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.

Thanks for joining brainly community!

Step-by-step explanation:

question 2

let the number be x

2 ( x + 5 ) = 5x - 14

2x + 10 = 5x - 14

2x - 5x = -14 - 10

-3x = -24

dividing both sides by -3

x = 8

to verify, 8 + 5 is 13 times 2 which 26..

so 5 times 8 is 40 minus 14 is 26

Answer:

[tex]Given,[/tex]

∠CBA=(7x+6)°

∠EBD=(9x-24)°

[tex]Now,[/tex]

∠CBA=∠EBD (vertically opposite angles)

----------------------

hope it helps...

have a great day!!

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:

6×4

2×12

8×3

Step-by-step explanation:

I know!