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3 years ago

If the light ray hits a mirror at a 40 degree angle what angle will the ray of light be reflected

Mathematics

1 answer:

Nat2105 [25]3 years ago

6 0

It will be also 40 degrees as reflected ray has an equal angle to incident ray.

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Try It! Class A was given a sunflower with a height of 8 centimeters that grows at a rate of 3 1/2 centimeters per week. Class B

igor_vitrenko [27]

Answer:

8 Weeks

Step-by-step explanation:

First let's collect the given data:

• <u>Class A:</u>

- Starts at 8 cm

- grows at 3.5 cm/week

• <u>Class B:</u>

- Starts at 10cm

- grows at 3.25 cm/week

Class B's plant starts out 2 cm taller and Class A's plant grows 1/4 cm faster. So, to find when these two will be at an equal height, divide 2 cm by 1/4.

2 ÷ 1/4 =

2 × 4/1 =

2 × 4 =

It will take 8 weeks for the plants to be at an equal height.

8 0

3 years ago

George was given 11 grams of medicine, but the full dose is supposed to be 25 grams. What percent of his full dose did George re

Bess [88]

Answer: George receive 44 % of his full dose .

Step-by-step explanation:

Given : The amount for full dose : 25 grams

The amount received by George = 11 grams

Now, the percent of his full dose received by George :-

$\dfrac{\text{Dose taken by George}}{\text{Full dose}}\times100$

$=\dfrac{11}{25}\times100=44\%$

Hence, George receive 44 % of his full dose .

8 0

3 years ago

Jason writes the following function to represent the amount of money in his account after 7 years given quarterly compounding of

Scrat [10]

Answer:

$f(t) = 2430(1 + \frac{0.16}{4} )^{7 \times 4}$

The APR is 16%.

Step-by-step explanation:

Jason writes the following function to represent the amount of money in his account after 7 years given quarterly compounding of the $2430 initial deposit as

$f(t) = 2430(1.04)^{28}$ ......... (1)

a. If we want to rewrite the equation in the form

$f(t) = A(1 + \frac{r}{n} )^{nt}$ .......... (2)

Then comparing equation (1) and (2) we get, A = 2430 and t = 7

Hence, 7n = 28

⇒ n = 4

Now, $1 + \frac{r}{4} = 1.04$

⇒ r = 0.16 i.e. 16%

Therefore, the expression is

$f(t) = 2430(1 + \frac{0.16}{4} )^{7 \times 4}$ (Answer)

b. The APR is 16%. (Answer)

8 0

3 years ago

Please help me. Thnx

Rama09 [41]

|-6 + 2|
|-4|
4

Hope this helps!

4 0

4 years ago

Please help me solve this problem!!

muminat

Answer:

Sorry

Step-by-step explanation:

But no

8 0

4 years ago