8th grade math, please help.

Answer:

Half of 138 is 69 o-o

Answer:

The formula for an exponential decay problem is: y = x (1 - r)^x

Where x = initial amount, r = rate of decay and x = # time periods

So, x = $258, r = 8% = .08 and x = 11 years

y = 258 (1 - 0.08)^11 = 258 (0.92)^11 = 258 * 0.3996 = $103.10

Step-by-step explanation:

Answer:

1. SSS

2. SAS

3. ASA

4. SAS

5. SSS

6. ASA

7. AAS

II. (The one with two triangles facing each other from the tip) SAS

II. (The other one) Non congruent

12. SSS

Answer:

truee

Step-by-step explanation:

i had this answer on my test and if i dont get it right sorry

The total interest on a 5-year 5.2% loan with a principal of $10,000 is $2600. The calculation is true.

Simple interest is a quick and easy way to calculate a loan's interest charge. Simply multiplying the daily interest rate by the principal by the number of days between payments yields simple interest.

Given that the amount of $10000 is deposited at the interest rate of 5.2% for the 5 years.

The simple interest is calculated by the formula written below,

SI = ( P x R x T ) / 100

SI = ( 10000 x 5.2 x 5 ) /100

SI = $2600

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Answer:

I think its 12 bc of the triangle inequality theorem

Answer: x = 29

Step-by-step explanation:

both angles are the same

so:

2x = 3x-29

2x - 3x = -29

-x = -29

x = 29

Answer:

0

Step-by-step explanation:

Answer:

0

Step-by-step explanation:

(NegativeA) + (PositiveA) = 0

Note for future reference:

(NegativeA) + (PositiveB) = (NegativeC)

(PositiveA) + (NegativeB) = (NegativeC)

(NegativeA) + (NegativeB) = (NegativeC)

(PositiveA) + (PositiveB) = (PositiveC)

Answer:

-9/7

Step-by-step explanation: it’s parallel so it must have the same slope as line C.

The values of P and Q are 270 units and 367 units respectively.

In a right-angled triangle, the sum of the squares of the smaller two sides of a right-angle triangle is equal to the square of the largest side.

We know, From Pythagoras's theorem hypotenuse² = base² + height².

So, p² = 179² + 203².

p = [tex]\sqrt{179^2 + 203^2[/tex].

p = [tex]\sqrt{32041 + 41209[/tex].

p = [tex]\sqrt{73250[/tex].

p = 270.

Now, we can find q.

q = [tex]\sqrt{250^2 + 270^2[/tex].

q = [tex]\sqrt{62500 + 72900[/tex].

q = [tex]\sqrt{135400[/tex].

q = 367.

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Answer:

88.85 Sq m

Step-by-step explanation:

For rectangle:

Length = 18 - 7.8 = 10.2 m

Width = 7.8 m

For both semicircular arcs:

Radius (r) = 7.8/2 = 3.9 m

Area of the shaded region = Area of rectangle + 2*Area of a semicircle - Area of circle with radius 3.5 m

[tex] = lb + 2 \times \frac{1}{2} \pi \times {(3.9)}^{2} - \pi \times {(3.5)}^{2} \\ \\ = 10.2 \times 7.8 + \pi \{{(3.9)}^{2} - (3.5)^{2} \} \\ \\ = 79.56 + \pi {(3.9 + 3.5)} (3.9 - 3.5) \\ \\ = 79.56 + 3.14 \times 7.4 \times 0.4 \\ \\ = 79.56 + 9.2944 \\ \\ = 88.8544 \\ \\ \approx 88.85 \: {m}^{2} [/tex]

Answer:

5

Step-by-step explanation:

Let the number of true or false questions be x.

2x+(20-x)6=100

2x+120-6x=100

-4x=-20

x=5

Ans: There are true or false questions

Answer:

Step-by-step explanation:

Time is the same, but the click will appear to be 15 minutes fast.

Answer:

10:15

Step-by-step explanation:

Rotating an object around a fixed point means moving it in a circular motion while it remains attached to a center of rotation.

Answer:

12 miles per hour...........

In Egypt British rule had important political and economic effects. The main interest of the British in Egypt was to keep control of the trade route that ran through Egypt to the Red Sea and then on to India.

Step-by-step explanation:

8x-5=9+7x

8x-7x=9+5

x=14

Answer:

8x-5 = 9+7x

8x-7x =9+5

x = 14

Answer:

0,3

Step-by-step explanation:

Answer:

the answer is 0.3

Step-by-step explanation:

i got it right on kahn

Answer:

The answer will be the last one which means that will 2

Step-by-step explanation:

You need to find

(f.g)=2 or (f.g) (-2)=2

Answer:

1/3

Step-by-step explanation:

2/5 x 5/6

10/30

1/3

Answer:

37.68cm

Step-by-step explanation:

C=2πr=2·π·6

Answer: 16.75 milliliters

Step-by-step explanation:

I believe it is 16.75 because 0.35 + 16.4 is 16.75 why is it addition decimals? Because it says How many milliliters does the mixture contain. It is talking about both combined, I hope this helps you if not sorry this was rushed! I am also 3rd Grade this Year! :D

The total mixture is 16.75 ml

Mixture is a combination of two or more elements to form a third element.

Given here, Jada mixes 0.35 ml to 16.4 ml milk and therefore the total mixture is equal to 0.35 + 16.4 = 16.75 ml

Hence Jada's mixture contains 16.75 ml

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Answer:

Step-by-step explanation:

h(t) = t2 - 8t + 12

Putting value of t = 0

h(0) = (0)2 - 8(0) + 12

= 0 - 0 + 12

= 12

Answer:

i'm sorry i don't know it

Step-by-step explanation:

hope u have a good day

Answer:

Im not joing to give the answer because i have something simaler that im working on and im almost done but thats why i cant give it because i dont know it yet but i do know how to solve it.

Step-by-step explanation:

You multiply all the numbers once and then thats your answer!

Answer:

p = 36cm

Step-by-step explanation:

p = 4a

4 × 9 = 36

good luck, i hope this helps :)

Answer:

0,0

1,1.5

2,3

3,4.5

4,6

5,7.5

Step-by-step explanation:

Answer:

j

Step-by-step explanation:

u

Answer:

8

Step-by-step explanation:

Answer:

For the first one:

[tex] \frac{8}{6} \\ \frac{12}{9} \\ \frac{16}{12} [/tex]

for the second one:

[tex] \frac{6}{7} \\ \frac{24}{28} \\ \frac{36}{42} [/tex]

For the third one:

[tex] \frac{2}{3} \\ \frac{4}{6} \\ \frac{12}{18} [/tex]

Answer:

Whre is the question I don't get it