Which algebraic expression represents the phrase “four times a number”?
4 + c
c - 4
4 divided by c
4c

Answer:

71.4285%

Step-by-step explanation:

Use Siri or a calculator

Answer:

28

Step-by-step explanation:

The temperature was increased by 28.

Answer:

6x2 3 + 4(2x - 1)

Step-by-step explanation:

6x23+4(2x−1)

Distribute:

=6x23+(4)(2x)+(4)(−1)

=6x23+8x+−4

Answer:

=6x23+8x−4

Answer:

the correct simplification of the expression is 7 - 2(4x-11)

Step-by-step explanation:

remember, the sign must correspond when taking out a common factor

thus, 16m - 4 = 4(4m - 1)

and also, 16m - 4 = -4(1 - 4m)

Answer:

Day five= 32 sit ups

Step-by-step explanation:

Day 1= 2 sit ups

Day 2= 4 sit ups

Day 3= 8 sit ups

Day 4= 16 sit ups

Day 5= 32 sit ups

Answer:

2(3d+3)

3d+3   + 3d+3

Step-by-step explanation:

4d+6+2d

Combine like terms

6d+6

Factor out a common term 2

2(3d+3)

We can also split this into 2 pieces because of the 2

The 2 means we have 2 terms of 3d+3

3d+3   + 3d+3

Answer:

Step-by-step explanation:

i did not get it

Answer:

I guess you can say 5

Step-by-step explanation:

ya I think 5

Answer:

15 if this helped let me know by pressing the thanks button

Step-by-step explanation:

Answer:

3 <_ w and w <_ 9

Step-by-step explanation:

The <_ are underlined btw

Hope this helped!

Answer:

I will answer when you explain what you mean by sample space.

Step-by-step explanation:

please do not delete.

Answer:

DE = 11.25 units

Step-by-step explanation:

The image of the quadilateral BCED and the extensions of BD and CE to move past B and C to meet at A is presented in the attached file to this answer.

Let the angle at A be θ

Let the length of DE be x

ABC forms a triangle which van allow θ to be obtained using cosine rule.

BC² = AB² + AC² - (2×AB×AC×cos θ)

BC = 9

AB = 24

AC = 28

9² = 24² + 28² - (2×24×28×cos θ)

-1279 = -1344 cos θ

Cos θ = (1279/1344) = 0.9516

θ = 17.89°

Note that ADE also forms a triangle and we can also use cosine rule to obtain the required side DE

DE² = AD² + AE² - (2×AD×AE×cos θ)

DE = ?

AD = AB + BD = 24 + 11 = 35

AE = AC + CE = 28 + 2 = 30

θ = 17.89°

DE² = 35² + 30² - (2×35×30×cos 17.89°)

DE² = 126.54

DE = √126.54 = 11.25

Hope this Helps!!!

The value of DE in the quadrilateral is 11.25 units.

From the information given, the cosine rule can be used. This will be:

BC² = AB² + AC² - (2 × AB ×AC × cos)

Therefore,

9² = 24² + 28² - (2 × 24 × 28 × cos)

cos = 17.89°

Therefore, the value of DE will be calculated thus:

DE² = 35² + 30² - (2 × 35 × 30 × cos 17.89)

DE = ✓126.54

DE = 11.25

In conclusion, the value of DE is 11.25 units.

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Answer:

pls may you explain I don't understand explain step by step

Answer:

56 Swedish Fish

Step-by-step explanation:

1 = T

2 = H

3 = U

4 = N

5 = D

6 = E

7 = R

8 = C

9 = L

10 = A

11 = P

Thunderclap means a crash of thunder

T h u n d e r = 7 letter word

Hence the number of fishes Viking gives Norman is 8 × 7 = 56 Swedish Fish

Answer:

Step-by-step explanation:

Notice that the total distance form the top of the pyramid to the bottom of the chamber is the sum of both distances.

The pyramid is 139 meters tall, and the subterranean chamber is 30 meters below the groung, the sum iis

[tex]d=139m+30m=169m[/tex]

Therefore, the distance from the top to the subterranean chamber is 169 meters.

Answer:

1815 pi cm^3

Step-by-step explanation:

The volume of a cylinder is given by

V = pi r^2 h

We know the diameter =22

so the radius is d/2  = 22/2 =11

V = pi (11)^2 (15)

V = pi1815

V = 1815 pi cm^3

Answer:

the Answer is  56,972.16

Step-by-step explanation: I took the test and i got it wrong when I beleved this person please this is the correct answer.

Answer:

see below

Step-by-step explanation:

-15 = 2x + 1

Subtract 1 from each side

-15-1 = 2x + 1-1

-16 = 2x

Divide each side by 2

-16/2 = 2x/2

-8 =x

Check

-15 = 2(-8) + 1

-15 = -16+1

-15 = -15

Answer:

-8

Step-by-step explanation:

subtract 2x to move it to the left side

-2x-15=1

add 15 to move it to the right side then add 1 to 15 since it would be 15 plus 1

-2x=16

divide by -2 to get x by its self

-2x=16/2x

Answer:

50

Step-by-step explanation:

because i just got it right from khan

Answer:

Hope this is correct

Answer:

B. y = 2x - 9

Step-by-step explanation:

All of the answer choices has a slope of 2, but B is the only answer choice that has (4,-1) on its line.

You can tell by plugging the point into the equation and seeing if the result is true.

y = 2x - 9

-1 = 2(4) - 9

-1 = 8 - 9

-1 = -1

Answer:

B

Step-by-step explanation:

The possible number of solutions is 2.

Two or more expressions with an Equal sign is called as Equation.

The given equations are x² + y²=9 and 9x+2y=16

The graph of first equation is circle and the graph of second equation is a line.

We know that a line can intersect a circle at most 2 times. So, the greatest possible number of solutions is 2.

First equation can be rewritten as x² + y²=3²

It is the standard form of a circle , where (h,k) is center and r is radius.

(x-h)² +(y-k)² =r² where (h,k) is center and r is radius.

In the above equation h=0,k=0 and r=3. It is a circle with radius 3 and centered at origin.

The second equation is 9x+2y=16

It is a linear equation.

Table of values.

x    y

0    8

1     3.5

2    -1

Plot these points on a coordinate plane and connect them by a straight line.

From the below graph it is clear that the line and circle intersect each other at two points. So, the given system of equation have two solutions.

Hence, the possible number of solutions is 2.

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Answer:

Area of Shaded Region ≈ 141.37 cm^2

Step-by-step explanation:

Given radius of 9 cm for the outer circle;

πr^2, ⇒ Substitute value of radius,

π * ( 9 )^2 ⇒ Square 9, keeping value in terms of π,

Area of Outer Circle; 81π

Provided a radius of 6 cm for the inner circle;

πr^2, ⇒ Substitute value of radius,

π * ( 6 )^2 ⇒ Square 6, keeping value in terms of π,

Area of Inner Circle; 36π

Take the shaded region to be the value of the inner circle ( area ) subtracted from the area of the outer circle;

Area of Shaded Region ⇒

81π - 36π =

45π =

Area of Shaded Region ≈ 141.37 cm^2

Answer:

6√2

Step-by-step explanation:

This is a right triangle. The legs of a right triangle are the sides that make up the right angle, and the hypotenuse is the side opposite to the right angle. To find x, we will use the Pythagorean Theorem. This states that a² + b² = c², where a and b are the legs and c is the hypotenuse. Since we know that the legs are both x and the hypotenuse is 12, we can plug these values into our equation to get  x² + x² = 12².

2x²=144 → x² = 72 → x = √72, which simplifies to x = 6√2. Hope this made sense and helps!

Answer:

AC = 12.5 cm

Step-by-step explanation:

use cosine law c^2 = a^2 + b^2 − 2ab cos(C)

c^2 = 6^2 + 10^2 - 2(6)(10)(cosin100)

c^2 = 156.84

c= √156.84

c= 12.5 cm

The cosine rule is used when we are given either three sides or two sides and the included angle.

Answer:

11.66 which is approximately 12

Step-by-step explanation:

by using Pythagoras method

[tex]a^{2}+b^{2}=c^{2} because c is the hypotenuse[/tex]  

[tex]6^{2}+10^{2}=c^{2}[/tex]

[tex]36+100=c^{2}[/tex]

[tex]136=c^{2}[/tex]

[tex]\sqrt{136}=\sqrt{c}[/tex]

[tex]c=11.66[/tex]

Answer:

(-4, -1)

Explanation:

Answer:

The Last Equation

Step-by-step explanation:

[tex]2(x+3)=32[/tex] is the same thing as [tex]2x+6=32[/tex].

Why? Because if you apply the distributive property...

[tex]2(x+3)=32\\2 * x =2x\\2*3 = 6\\\boxed {2x+6=32}[/tex]

You get what was mentioned in the question!

So, 2(x+3)=32 should have the same solution as 2x + 6 =32.

Brainilest Appreciated.

Answer:

The bottom choice, 2(x + 3) = 32

Step-by-step explanation:

2x + 6 = 32

Subtract 6 from both sides of the equation

2x = 26

x = 13

Substitute the new value for x into all of the possible equations

1) 2x = 38,       2)  x - 3 = 16        3)  x + 6 = 16       4)   2(x - 3) = 16        

13 * 2 = 38           13 - 3 = 16           13 + 6 = 16              2x - 6 = 16

26 = 38                 10 = 16                  19 = 16                 13(2) - 6 = 16

False                     False                    False                   26 - 6 = 16

                                                                                           20 = 16

                                                                                             False

5)  2(x + 3) = 32

     2x + 6 = 32

    2(13) + 6 = 32        

      26 + 6 = 32

          32 = 32

             True

              The last answer choice, (the 5th one down) is correct

                                              Hope this helps :)

Answer:

n + 1

Step-by-step explanation:

Consider the division in fractional form, that is

[tex]\frac{3n+3}{3}[/tex] ← factor out 3 from each term on the numerator

= [tex]\frac{3(n+1)}{3}[/tex] ← cancel common factor 3 on numerator/ denominator, leaving

= n + 1

Answer:

155

Step-by-step explanation:

The measure of <1 is 25.

The fundamental characteristics listed below make it simple to recognize parallel lines.

Given:

The streets represented by lines V and W are parallel.

We need to determine the measure of ∠1.

As, Corresponding angles are those in the matching corners formed when a transversal line crosses two parallel lines.

Additionally, the size of the corresponding angles is consistently the same.

So, From the figure, the ∠1 and the other angle in the parallel line V with the measure of angle 155° are corresponding angles.

Thus, the measure of ∠1 is 155°

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Answer:

6

Step-by-step explanation:

First we must get the equation in slope intercept form

y=mx+b

where m is the slope and b is the y intercept

3x+4y=24

To get this equation in slope intercept form, we have to get y by itself.

First, subtract 3x from both sides

3x-3x+4y=24-3x

4y= -3x+24

Now, divide both sides by 4

4y/4=-3x/4+24/4

y=-3/4x+6

So the y intercept is 6

The y-intercept of the graph of the equation 3x + 4y = 24 is y = 6.

Given the equation of the graph in the question:

3x + 4y = 24

The y-intercept of a graph is simply the point where the graph crosses the y-axis, meaning that the x-coordinates must be zero.

To determine the y-intercept of the graph of the equation 3x + 4y = 24, replace x with 0 and solve for y:

3x + 4y = 24

Substitute x = 0 into the equation:

3(0) + 4y = 24

Simplifying, we get:

0 + 4y = 24

4y = 24

Divide both sides by 4, to isolate the y-variable:

y = 24/4

y = 6

Therefore, the graph intersects the y-axis at the point (0, 6).

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Answer:

486

Step-by-step explanation:

9(9) added 6 times

i struggle to explain it but i think it is 486cm squared

Answer:

8 weeks

Step-by-step explanation:

26.79/3.75 = 7.144

To get the full amount you need to round up to the next highest week.

Answer:

Every week you should save $18.05

Step-by-step explanation: