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svlad2 [7]
3 years ago
14

Who wants 50 points???

Mathematics
2 answers:
Nataly_w [17]3 years ago
7 0

Answer:me

Step-by-step explanation:

bagirrra123 [75]3 years ago
5 0
I want 50 points and can I also get brainliest. Thank you!! Much appreciated.
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In the figure, lines I and mare parallel lines cut by transversal p.
PolarNik [594]

Answer:

The statement which justifies Andrea's statement is "Corresponding angles are congruent" ⇒ C

Step-by-step explanation:

If two parallel lines intersected by a line, then there are some pair of angles are formed

  • Corresponding angles that are congruent
  • Alternate interior angles that are congruent
  • Alternate exterior angles that are congruent
  • Consecutive interior angles that are supplementary

In the given figure

∵ Lines l and m are parallel

∵ They are cut by transversal p

∵ ∠2 and ∠3 are in the corresponding position

→ By using the 1st rule above

∵ Corresponding angles are congruent

∴ ∠2 ≅ ∠3

∴ m∠3 = m∠2

∵ m∠2 = 40°

∴ m∠3 = 40°

The statement which justifies Andrea's statement is "Corresponding angles are congruent"

3 0
3 years ago
Dave ordered dinner for a party of 10 people. Three people ordered the $4.75 chicken dinner, two people ordered the $4.95 fish d
postnew [5]

Answer:

The average cost of each dinner at Dave's party is <u>$5.79</u>.

Step-by-step explanation:

Given:

Dave ordered dinner for a party of 10 people.

Three people ordered the $4.75 chicken dinner, two people ordered the $4.95 fish dinner, and five had the beef dinner at a cost of $6.75 each.

Now, to find the average cost of each dinner at Dave's party.

So, we get the total amount for the dinner:

Three people ordered the $4.75 chicken dinner.

4.75\times 3=14.25

Two people ordered the $4.95 fish dinner.

4.95\times 2=9.90

Five had the beef dinner at a cost of $6.75.

6.75\times 5=33.75

Total amount of dinner = 14.25+9.90+33.75=\$57.90.

Now, to get the average cost of each dinner of 10 people we divide the total amount of dinner by 10:

57.90\div 10

=\$5.79.

Therefore, the average cost of each dinner at Dave's party is $5.79.

7 0
3 years ago
2.The number of grams A of a certain radioactive substance present at time, in yearsfrom the present, t is given by the formulaA
professor190 [17]

Answer:

Given that,

The number of grams A of a certain radioactive substance present at time, in years

from the present, t is given by the formula

A=45e^{-0.0045(t)}

a) To find the initial amount of this substance

At t=0, we get

A=45e^{-0.0045(0)}A=45e^0

We know that e^0=1 ( anything to the power zero is 1)

we get,

A=45

The initial amount of the substance is 45 grams

b)To find thehalf-life of this substance

To find t when the substance becames half the amount.

A=45/2

Substitute this we get,

\frac{45}{2}=45e^{-0.0045(t)}

\frac{1}{2}=e^{-0.0045(t)}

Taking natural logarithm on both sides we get,

\ln (\frac{1}{2})=-0.0045(t)^{}(-1)\ln (\frac{1}{2})=0.0045(t)\ln (\frac{1}{2})^{-1}=0.0045(t)\ln (2)=0.0045(t)0.6931=0.0045(t)t=\frac{0.6931}{0.0045}t=154.02

Half-life of this substance is 154.02

c) To find the amount of substance will be present around in 2500 years

Put t=2500

we get,

A=45e^{-0.0045(2500)}A=45e^{-11.25}A=45\times0.000013=0.000585A=0.000585

The amount of substance will be present around in 2500 years is 0.000585 grams

4 0
11 months ago
How much interest would be paid in 1 year for a loan of $3600 at 8 1/2% simple interest?
Alex787 [66]
3600 * 1 * 0.085 = 306

answer: interest would be $306
7 0
3 years ago
Read 2 more answers
What is th result of converting 20 ounces into pounds?
Harrizon [31]
Hello!

The Correct Answer would be:

"1.25 Pounds"

Why? Well:

1 ounce (oz) is equal to 0.0625 pounds (lb).

1 oz = (1/16) lb = 0.0625 lb

The mass m in pounds (lb) is equal to the mass m in ounces (oz) divided by 16:

m(lb) = m(oz) / 16


So as Result, The Answer is 1.25 Pounds.


Hope this Helps! Have A Wonderful Day! :)

6 0
3 years ago
Read 2 more answers
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