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Usimov [2.4K]
3 years ago
10

Please help asap i give brainliest :c

Mathematics
2 answers:
IRISSAK [1]3 years ago
4 0

Answer:

C

Step-by-step explanation:

for her refrigerator

schepotkina [342]3 years ago
3 0
It’s C (Sorry I needed some points )
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eli worked on a part time job in summer for 6 days. he worked 4 hours on each of the 6 days. he was paid a total of 300 for his
galina1969 [7]

Answer:

$12.50 per hour

Step-by-step explanation:

4 0
3 years ago
The water pressure on Mustafa as he dives is increasing at a rate of 0.9920.9920, point, 992 atmospheres (\text{atm})(atm)left p
Paha777 [63]
This problem is a simple dimensional analysis. We are simply tasked to express the rate 0.992 atm/m to atm/km.

Dimensional analysis, in simpler terms, is just the process of expressing an answer in another unit by multiplying conversion factors.

For this problem, we'll need to perform the following:

\frac{0.992 atm}{m}= \frac{1000m}{1km} = \frac{992atm}{km}

Notice that we used the conversion factor 1000 meters = 1 kilometer to convert the units from atm/m to atm/km. Thus, we arrive at the final answer 992 atm/km.
8 0
3 years ago
Read 2 more answers
A small number of cards have been lost from a complete pack if I deal the rest of the cards amongst four people three cards rema
hram777 [196]
<h3>The number of cards in the deck now is 47.</h3>

Step-by-step explanation:

Let us assume there are a total of m cards and  m< 52.

If cards are divided by 4 the number of cards are left undivided = 3

⇒ 4 K +  3  = m   ( K : Card given to each player)

So,  minimum value of m can be 7

Possible values of m = {7,11,15,....,35,39,43, 47,51} ... (1)

As they all leave 3 cards when divided into 4 people equally.

If cards are divided by 3 the number of cards are left undivided = 2

⇒ 3 S +  2  = m   ( S : Card given to each player)  

So,  minimum value of m can be 5.

Possible values of m = {5,8,11,....,38,41,44, 47,50} ... (2)

As they all leave 2 cards when divided into 3 people equally.

If cards are divided by 5 the number of cards are left undivided = 2

⇒ 5 L +  2  = m   ( L : Card given to each player)  

So,  minimum value of m can be 7.

Possible values of m = {7,12,17,....,37,42, 47} ... (3)

As they all leave 2 cards when divided into 5 people equally.

Now, as we can see in all the three sets, the value of <u>m = 47 is in common in all sets</u>.

Hence, the number of cards in the deck now is 47.

6 0
3 years ago
Can someone help me with these problems please! Im so confused
Schach [20]

Step-by-step explanation:

why are you confused ?

the question is to get the area of the shaded (= grey) areas.

all the shapes are clearly combined shapes out of several basic shapes, and in some cases we need to add then, and in some we need to subtract them from each other (to eliminate any white content).

that is really all that needs to be done.

of course, it is important to notice the different metrics used for the lengths, which define the metrics to be used for the areas.

a.

a rectangle and 2 half-circles on the sides (they are together one full circle).

radius is always 1/2 of the diameter of a circle.

and the width of the rectangle is exactly the diameter (= 2×radius) of the circle(s).

grey area :

rectangle : 20×(6×2) = 20×12 = 240 m²

circle : pi×r² = pi×6² = pi×36 = 113.0973355... m²

in total :

240 + 113.0973355... = 353.0973355... m²

b.

a trapezoid minus a circle.

the area of a trapezoid is

(a+b)×h/2

and h (height) is again the diameter of the circle (2×radius).

grey area :

trapezoid : (9 + 15)(4×2)/2 = 24 × 4 = 96 ft²

circle : pi×r² = pi×4² = pi×16 = 50.26548246... ft²

in total :

96 - 50.26548246... = 46.26548246... ft²

c.

3 rectangles.

rectangle1 - rectangle2 + rectangle3.

grey area :

rectangle1 : 14×10 = 140 m²

rectangle2 : 10×6 = 60 m²

rectangle3 : 6×2 = 12 m²

in total :

140 - 60 + 12 = 92 m²

d.

a circle minus a square.

the only specialty here is the diameter and radius of the circle : the diagonal of the inner square.

we get the diagonal of the inner square via Pythagoras, because the diagonal makes 2 right-angled triangles out of the square.

diagonal² = 4² + 4² = 16+16 = 32

diagonal = sqrt(32)

radius = diagonal/2 = sqrt(32)/2 = sqrt(32/4) = sqrt(8)

grey area :

square : 4×4 = 16 cm²

circle : pi×r² = pi×(sqrt(8))² = pi×8 = 25.13274123... cm²

in total :

25.13274123... - 16 = 9.132741229... cm²

is there still anything unclear ?

please let me know.

but as you can see there is no need to panic. just use basic math and common sense.

8 0
2 years ago
I rly need help with this..plz helpp
k0ka [10]
Probably let x be 8 and y be 2
Then you input the values
8-2=6
Then
2(8)-10(2)
=16-20
=-4

How they have 4?!
5 0
2 years ago
Read 2 more answers
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