Q4 - Exam prep: Missing values
Audrey measures all 7 pencils in her pencil case and writes the first 6 lengths down.
12.4 cm, 12.6 cm, 13 cm, 13.4 cm, 13.5 cm, 13.3 cm
Audrey calculates the mean length of all 7 pencils to be 13.1 cm.
Find the length of the missing pencil.
cm
[2]

Answer:

coefficient is the term in front of the value

Hence the second term is 5b which means the value is 5

Answer:

1 26/35

Step-by-step explanation:

61/35 =

1 26/35

Hope that helps!

Answer:

1 26/35

Step-by-step explanation:

So there is 1 whole number and 26/ 35

i don't know if that helps but thats helps but that's the answer  

Given:

The inequality is

[tex]-2x+2>3x-8[/tex]

To find:

The solution of the given inequality.

Solution:

We have,

[tex]-2x+2>3x-8[/tex]

Isolate the variables terms on the left side.

[tex]-2x-3x>-2-8[/tex]

[tex]-5x>-10[/tex]

Divide both sides by -5 and change the inequality sign as we divide the equality by a negative value.

[tex]\dfrac{-5x}{-5}<\dfrac{-10}{-5}[/tex]

[tex]x<2[/tex]

Therefore, the correct option is D.

Answer:

19 girls snd 10 boys

Answer:

The answer is √5+√3+10+2√15

Answer: [tex]\sqrt{5} + \sqrt{3} + 10 + 2\sqrt{15}[/tex]

Step-by-step explanation:

[tex]\frac{2+4\sqrt{5} }{\sqrt{5}-\sqrt{3} }[/tex]

You need to multiply by the conjugate

To find the conjugate, first remember:

(a+b)(a-b) = a^2 - b^2 (if a and b are sqrts, this will eliminate the square roots, rationalizing the denominator)

You have √5 - √3 as the denominator

You should multiply by √5 + √3

(This will eliminate the sqrts)

Remember to multiply both the numerator and denominator

[tex]\frac{2+4\sqrt{5} }{\sqrt{5}-\sqrt{3} } = \frac{2+4\sqrt{5} }{\sqrt{5}-\sqrt{3} } * \frac{\sqrt{5}+\sqrt{3} }{\sqrt{5}+\sqrt{3}}[/tex]

Now simplify

[tex]\frac{2+4\sqrt{5} }{\sqrt{5}-\sqrt{3} } * \frac{\sqrt{5}+\sqrt{3} }{\sqrt{5}+\sqrt{3}} = \frac{(2+4\sqrt{5})(\sqrt{5}+\sqrt{3})}{(\sqrt{5}-\sqrt{3})(\sqrt{5}+\sqrt{3})} = \frac{2\sqrt{5}+2\sqrt{3}+20+4\sqrt{15}}{5-3} = \sqrt{5} + \sqrt{3} + 10 + 2\sqrt{15}[/tex]

Answer:

i think x=4.75

Step-by-step explanation:

Answer:

17/4

Step-by-step explanation:

17−5(2x−9)=−(−6x+10)+4

17−5(2x−9)=−(−6x+10)+4

17+−10x+45=6x+−10+4

(−10x)+(17+45)=(6x)+(−10+4)

−10x+62=6x+−6

−10x+62=6x−6

−10x+62−6x=6x−6−6x

−16x+62=−6

−16x+62−62=−6−62

−16x=−68

-16x/16 = -68/16

x = 17/4

Answer:

Angle CDB = 32

Step-by-step explanation:

Here, we want to find the measure of CDB

Mathematically;

angle DCB = 90

This is because angle at the center is twice the angle at the circumference

Also;

angle CAD = angle CBD = 58

This is because they are angles in the same segment

Furthermore;

CDB + 90 + 58 = 180

This is because sum of angles in a triangle is 180

CDB = 180-90-58

CDB = 32

Answer: 1*10^8 is 100000000 or 10 followed by 8 zeros

Answer:

The answer would be 5 of each.

Step-by-step explanation:

5 * .10 + 5 * .25 = $1.75

Answer:

1) she started using her phone 4 hours after noon

2) she started charging her phone 8 hours after noon

3) 30% an hour

Step-by-step explanation:

1)

She started using her phone at 2.

2)

She started charging her phone at 9.

3)

She was using her phone through the hours 2-10.

Her phone started dying around 3.

Answer:

11y²

Step-by-step explanation:

Subtract 5y² from 16y²

Answer:

11y^2

Step-by-step explanation:

16y^2 and -5y^2 are "like terms," so can be added:

16y^2

- 5y^2

-----------

11y^2

Subtract 9a from -15a:

-15a

- 9a

-------

-24a

Answer:

subtract 260-135=120

Step-by-step explanation:

Answer:

Hope that answers your question

the answer is 9m−14n−2

Answer:

63

Step-by-step explanation:

Answer:

The answer is x= 10.6

Step-by-step explanation:

because C and D are both bigger numbers then the side that is given so those are eliminated and you're left with A and B and there is no way it can be B because thats to big of a number so its A

Answer:

12×0.25 is definitely right

×0.25 is another way of finding a quarter of something. I looked at the other answers and I think this one is the only correct one

Answer: 7

Step-by-step explanation:

Answer:

* 55.5 miles

Step-by-step explanation:

17² + b² = 23²

289 + b² = 529

b² = 240

b = 15.491 ≈ 15.5

17 + 23 + 15.5 = 55.5

You can also simply notice B is the only answer with a .5 decimal and thus don't have to add.

Answer:

This represents the graph area above the line y = 4x - 5 shaded.

Step-by-step explanation:

y > 4x - 5 is an inequality.  First we graph y = 4x - 5, which has y-intercept (0, -5) and slope 4.  Next, we shade all of the area above this line (because the inequality y > 4x - 5 says that all y values are above 4x - 5).

Answer:

1. kite 2. perpendiclular 3. reflective 4. HL

Step-by-step explanation:

I hope this helps :)

Answer:

We know that AD ≅ CD by the definition of kite. By the kite diagonal theorem, AC is perpendicular to BD. This means that angles AED and CED are right angles. We also see that ED ≅ ED by the reflexive property. Therefore, we have that ΔAED ≅ ΔCED by HL.

Step-by-step explanation:

We know that AD ≅ CD by the definition of kite.

- adjacent sides in a kite are congruent

By the kite diagonal theorem, AC is perpendicular to BD.

- the kite diagonal theorem states that diagonals of a kite form right angles because they are perpendicular to each other.

We also see that ED ≅ ED by the reflexive property.

- any side or angle congruent to itself is identified by the reflexive property

Therefore, we have that ΔAED ≅ ΔCED by HL.

- the triangles formed are all right triangles, so we can they that the two triangles are congruent to each other by the Hypotenuse Leg theorem.

Answer: D

Step-by-step explanation:

Answer:46x

Step-by-step explanation:

hyhh

Answer:

B

Step-by-step explanation:

NOTE:

it might be wrong since im in geometry, not algebra, i used to know this

Answer:

3 more months to get $250.

Step-by-step explanation:

She had 100 in her account. Thats 2 months. 3 months would give her 150 more dollars. So 100 + 150 = 250