which expression is equivalent to(4-2x)(4+2x)?
a. (16- 2x)²
b. (16+2x)²
c. 4-4x²
d. 16-4x²
e. 16-8x+4x²
f. 16-8x-4x²
g. 16-16x-4x²​

Answer:

c because each island is 750 and if you x's 4 x750 it gives you 3,000 which is c

Answer:

C.

3,000 miles

Step-by-step explanation:

pls, tell me if wrong have a good night/day <3

The question is incomplete. The complete question is :

John mows yards for his father's landscaping business for $ 10 per hour and also at a bakery for $ 15 per hour. He can work at most 52 hours per weak during the summer. He needs to make at least $ 600 per week to cover his living expenses.

a) If John works 14 hours mowing and 30 hours at the bakery, does this satisfy all of the problem’s constraints?

(b) If x represents the hours John spends mowing and y represents the hours he spends at the bakery, write a system of inequalities that describes this scenario.

Answer:

a). No

b). 10x + 15y ≥ 600

Step-by-step explanation:

a). Number of hours John works mowing = 14 hours

    Number of hours John works at bakery = 30 hours

Therefore, according tot he question,

= 14($10) + 30($15)

= 140 + 450

= $ 590

This is not enough money. He needs to earn $ 600 per week.

b). Given :

    x = hours John spends mowing

    y = hours John spends at the bakery

Therefore, the inequalities which describes this situation is:

   x + y ≤ 52

  10x + 15y ≥ 600

Answer:

t=x+44

Step-by-step explanation:

the x ounces are being added to the vase's pre-existing 44 ounces so therefore the equation is t=x+44

Answer:

Step-by-step explanation:

23

Answer:

1. a translation of (-1,3)

2. a reflection across a line through points  (0,4) and (3,4)

Answer:

20 days

Step-by-step explanation:

Subtract 1.5 gallons from 14 gallons to obtain the number of days the car will run without the warning light going on:  12.5 gallons.

Dividing this result by 0.6 gallons/day, we get

 12.5 gal

------------------- = 20.82 days.  Round this down to 20 days.  (We're not

 0.6 gal/day                                dealing in partial days.)

Answer:

2

Step-by-step explanation:

Answer:

[tex]x=\frac{13}{2}, y=\frac{51}{4}[/tex]

Step-by-step explanation:

[tex]We\ are\ given,\\3x-2y=-6\\5x-2y=7\\Considering\ this\ system\ of\ equations,\\Let\ 3x-2y=-6\ be\ E_1\\Let\ 5x-2y=7\ be\ E_2,\\Hence,\\Multiplying\ E2\ with\ -1, we\ get:\\3x-2y=-6\\-1(5x-2y)=7*-1\\Hence,\\3x-2y=-6\\-5x+2y=-7\\Now,\\Lets\ add\ E_1\ and\ E_2\ together\\Hence,\\(3x-2y)+(-5x+2y)=(-6)+(-7)\\Hence,\\3x-2y-5x+2y=-13\\Arranging\ And\ Adding\ Like\ terms,\ we\ have:\\3x-5x-2y+2y=-13\\Hence,\\-2x+0y=-13\\-2x=-13\\x=\frac{-13}{-2}=\frac{13}{2}[/tex]

[tex]Now,\ we\ can\ substitute\ x=\frac{13}{2}\ in\ E_1\ or\ E_2,\\But,\\Here,\ we'll\ substitute\ it\ in\ E1,\\Hence,\\Substituting\ x=\frac{13}{2}\ in\ E1,\ we\ have:\\3*\frac{13}{2}-2y=-6\\\frac{39}{2}-2y=-6\\-2y=-6- \frac{39}{2}\\-2y=\frac{-12-39}{2}\\-2y=\frac{-51}{2}\\y=\frac{-51}{2*-2}=\frac{51}{4}\\Hence,\\x=\frac{13}{2}, y=\frac{51}{4}[/tex]

Answer:

66 cm (Option B)

Step-by-step explanation:

The formula for the circumference of a circle is C = 2πr, so plug the values into the formula.  The radius, (r) of a circle is one half of the diameter, so split 21 is half to get a radius of 10.5.  Use 3.14 for π.  

C = 2πr

C = 2(3.14)(10.5)

C = 6.28 × 10.5

C = 65.94

Rounded to the nearest unit, you get a answer of 66 cm.  

Hope this helps!  :)

Answer:

a9=2

a11=15.4

a3=?

________

a3 = −38.2

Step-by-step explanation:

Hope this helps u . ♡

Answer:

D: all real numbers,  R: y ≤ -4

Step-by-step explanation:

R: y ≤ -4

Because the line doesn't go beyond -4.  

Answer:

your answer is C

Step-by-step explanation:

took the test

Answer:

256 miles

Step-by-step explanation:

192/0.75 = 256 miles

Mark brainliest if this helped

Mark brainliest if this helped

Answer:

70ml

Step-by-step explanation:

concentrate is half of water ( 140/2=70)

3 parts of 70ml   in total    (210ml )  

2 parts of water-----------70+70 of water= 140

1 part of concentrate 70 of concentrate

Answer: 16.5

Step-by-step explanation:

Answer:

7 as a halfway of a line

3 if you were using points on a graph

Step-by-step explanation:

10--4/2=7

use midpoint formula for 3

The number that is exactly halfway between -4 and 10 is 3

The distance between two point is the amount of length between the two points.

Midpoint of -4 and 10 is 10 - (-4) gives 10 + 4

The distance between -4 and 10 is 14 units

Halfway of the length between -4 and 10 is 14 /2 (7)

The number that is exactly halfway between -4 and 10 = -4 + 7 or 10 - 7 = 3

The number that is exactly halfway between -4 and 10 is 3

Find out more at: https://brainly.com/question/22059747

hello

so these angles you can apply the "vertically opposite angles are equal" rule

angle "A" is vertically opposite to 138º so therefore angle "A" is 138º

angle "B" is verticall opposite to 42º so therefore angle "B" is 42º

hope this helped and have good day :)

Answer:

AE and CE or AB and CD

Step-by-step explanation:

for explanation perpandicalar is to form a right angle =90 and its symbol is □

Answer:

A and C.

Step-by-step explanation:

Hi! Whenever you want to find lines that are perpendicular you have to search between them an 90 angle. Hope it helped!

Answer:

25%

Step-by-step explanation:

Answer:

 =  1 0

Step-by-step explanation:

Solve

1. Combine like terms

2  +  2 0  + 2  =  6 0

4  +  2 0  =  6 0

2. Subtract  20  from both sides of the equation

4  +  2 0  =  6 0

4  +  2 0  −  2 0  =  6 0  −  2 0

3. Simplify

4  +  2 0  −  2 0 =  6 0  −  2 0

4  =  6 0  −  2 0

4 =  6 0  −  2 0

4  =  4 0

4. Divide both sides of the equation by the same term

4x = 40

4x/4 = 40/4

5. Simplify

4x/4 = 40/4

x = 40/4

x = 40/4

x = 10

Given:

In circle O, m∠R = 30.8°.

To find:

The m∠NOQ

Solution:

Central angle theorem: According to this theorem, the central angle is always twice of subtended angle on the same arc.

Angle NOQ and angle NRQ are on the same arc but ∠NOQ is the central angle and ∠NRQ is the subtended angle on the arc NQ.

Using central angle theorem, we get

[tex]m\angle NOQ=2\times m\angle NRQ[/tex]

[tex]m\angle NOQ=2\times m\angle R[/tex]

[tex]m\angle NOQ=2\times 30.8^\circ[/tex]

[tex]m\angle NOQ=61.6^\circ[/tex]

Therefore, [tex]m\angle NOQ=61.6^\circ[/tex].

Step-by-step explanation:

[tex] \frac{75}{360} = \frac{5}{24} [/tex]

[tex] \frac{19}{6\pi} \times \frac{24}{5} = \frac{76}{5\pi} [/tex]

the area of the circle is

[tex] {x}^{2} \times \pi = \frac{76}{5\pi} [/tex]

x=1,241

Kindly check the complete version of the question on the picture attached below :

Answer:

B.) 4 * 3 * 3

Step-by-step explanation:

Unit volume of cube = 48 unit³

Using the volume relation :

Volume = Length * width * height

V = l * w * h

To obtain the odd representation, we calculate the volume of the dimensions given in the option and select the option which does not yield a volume of 48 unit³

A.) 8 * 2 * 3 = 48 unit³

B.) 4 * 3 * 3 = 36 unit³

C.) 6 * 2 * 4 = 48 unit³

D.) 3 * 2 * 8 = 48 unit³

Hence, prism with dimension 4 * 3 * 3 cannot be one of Kyle's prism

Answer:

Geometry helps us in deciding what materials to use, what design to make and also plays a vital role in the construction process itself. Geometrical tools like the protractor, ruler, measuring tape, and much more are used in construction work, astronomy, for measurements, drawing

Step-by-step explanation:

Answer:

23 x 23 is 23 why bc anything multiplayed by itself is the same number

Answer:

0%

Step-by-step explanation:

Since there are no red marbles in the bag, there is no chance that a red marble will be picked.