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ASHA 777 [7]
2 years ago
14

PLEASE HELP ME ITS IXL ​

Mathematics
2 answers:
Natasha_Volkova [10]2 years ago
5 0

Answer:

Step-by-step explanation:

Blababa [14]2 years ago
3 0

Answer:

upper diagram

12

Step-by-step explanation:

Diagram:

The upper diagram shows 4 penalty kicks made and 1 missed.

That is a ratio of 4 to 1 of penalty kicks made to penalty kicks missed.

Answer: upper diagram

Number of penalty goals made and missed:

We can guess the numbers until the numbers work.

For each number of missed kicks we guess, we guess 4 times as many kicks he made.

For example, we guess 1 missed kick and 4 kicks he made.

First guess:

Maybe he made 4 and missed 1.

4 - 1 = 3, not 9, so this is not the answer.

Second guess:

Maybe he made 8 and missed 2.

8 - 2 = 6, not 9, so this is not the answer.

Third guess:

Maybe he made 12 and missed 3.

12 - 3 = 9, which is what we need, so this is the answer.

He made 12 and missed 3

Answer: 12

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Can someone please help me​
astra-53 [7]

Answer:

square 20 has 44 green squares

square 21 has 45 green squares

Step-by-step explanation:

To solve the problem, we need to observe the cases, and determine/define a rule for each case (odd number of sides, or even number of sides).

For square one, we note that the centre square is shared by two diagonals, so we saved one square from the two diagonals.

The side length is 3 for square 1, 4 for square 2, and so on.

Let

n= square number (1, 2,3...)

L = side length (3,4,5...)

G1(n) = function that gives the number of green squares for square n, n=odd

G2(n) = function that gives the number of green squares for square n, n=even

side length, L=n+2   ................(1)

G1(n) = twice the side length less one, as discussed above

G1(n) = 2L-1       now substitute L=n+2

G1(n) = 2(n+2) -1    simplify

G1(n) = 2n + 3

Check:

for n=1, square 1 has 2*1+3 = 5 green squares ... checks

for n=3, square 3 has 2*3+3 = 9... checks

for n=5, square 5 has 2*5+3 = 13 ....checks

For even squares, it is even easier, because

G2(n) = 2L = 2(n+2)

check:

for n=2, square 2 has 2(2+2) = 8 green squares........checks

for n=4, square 4 has 2(4+2) = 12 green squares........checks.

Fincally, we apply our formula to n=20 and n=21

square 20 : G2(20) = 2(n+2) = 2(20+2) = 44 green quars

square 21 : G1(21) = 2n+3 = 2(21)+3 = 45 green squares

5 0
3 years ago
Alex the electrician needs 34 yards of electrical wire to complete his job. He has a coil of wiring in his workshop. The coiled
bogdanovich [222]

Answer: This coil will not be enough to complete the job.

Step-by-step explanation:

The circumference of the coil of wiring can be calculated with:

C=2\pi r

Where r is the radius and \pi=3.14

The radius can be calculated by dividing the diameter by 2. Then:

r=\frac{18in}{2}\\\\r=9in

Convert 9 inches to yards (1 yard=36 inches):

(9in)(\frac{1yd}{36in})=0.25yd

Substitute this radius into the formula:

C=2(3.14)(0.25yd)\\C=1.57yd

Since there are 21 circles of wire, you need to multiply C=1.57yd by 21:

C_T=(1.57yd)(21)=32.97yd

The coil has 32.97 yards of wire and Alex needs 34 yards, therefore, this coil will not be enough  to complete the job.

8 0
3 years ago
How are I supposed to do this ?
ad-work [718]

Answer:

Step-by-step explanation:

1. binomial polynomial

2. 2 terms

3. 4 is the constant term

4. - 1/10 x^3 is the leading term

5. -1/10 is the leading coefficient.

8 0
3 years ago
How can you use a 10-by-10 grid to model 12%? You can shade half of the squares. You can shade half of one row of the squares. Y
TiliK225 [7]

Answer:

The options provided do not have the correct answer. Read below.

Step-by-step explanation:

Given a 10 by 10 grid model means that there are exactly 100 individual squares present. This shows that each square is equal to 1%.

None of the options provided gives us 12% of the model.

The first option results in 50%, the second results in 5%, third option results in 0.5% and the last option results in 2%.

For 12% we can shade 12 squares completely, half of 24 squares etc.

I hope this answer helps.

3 0
3 years ago
PLEASE PLEASE HELP IF YOU KNOW!! THANK YOU
Vladimir [108]
I'm guessing this is what the question is asking?

5 0
3 years ago
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