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LekaFEV [45]
3 years ago
14

CAN SOMEONE PLEASE HELP ME WITH MY MATH !!!​

Mathematics
2 answers:
AveGali [126]3 years ago
7 0

Answer:

15

Step-by-step explanation:

The similarity ratio is 22/ 10 and 33/y and 12/x

22/10 = 33/y cross multiply expressions 22y = 330 and y = 15

Sonja [21]3 years ago
5 0

Answer:

y = 15

Step-by-step explanation:

We can use ratios to solve

y          10

----- = ------------

33            22

Using cross products

22y = 10 *33

Divide each side by 22

22y/22 = 10 *33/22

y = 15

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You want to reduce the size of a picture to place in a
Brums [2.3K]

Answer:

Exact answer: y = 6.14125 inches, not completely sure though.

Step-by-step explanation:

Assuming that r represents the rate, A represents the principal amount, and t represents the times scanned, we know that A = 10 inches, t = 3 scans, and r = 15% or 0.15

I'm not sure what y represents, but it seems to be the final size of the picture after the scans are performed, so the equation could be:

y = A × (1-r)^{t}

So, y = (10) × (1 - 0.15)^{3}

y = 10 × 0.85³

y = 6.14125 inches

5 0
3 years ago
Trying to find the equation for the pattern 5, 11, 18, 26, 35, 45​
tester [92]

Answer:

Step-by-step explanation:

u_{n+1}=u_n+n+5\\\Longrightarrow\ u_{n+2}=u_{n+1}+(n+1)+5\\u_{n+2}-u_{n+1}=u_{n+1}+n+1+5-u_n-n-5\\u_{n+2}=2u_{n+1}-u_n+1\\u_{n+3}=2u_{n+2}-u_{n+1}+1\\\\u_{n+3}-u_{n+2}=2u_{n+2}-u_{n+1}+1 -2u_{n+1}+u_n-1\\\\u_{n+3}-3u_{n+2}+3u_{n+1}-u_n=0\\\\\\Equation\ caract\' eristique:\\r^3-3r^2+3r-1=0\\(r-1)^3=0\\\\\boxed{u_n=a+b*n+c*t^2}\\\\u_1=5\\u_2=11\\u_3=18\\u_4=a+4*b+16*c=26\\u_5=a+5*b+25*c=35\\u_6=a+6*b+36*c=45\\\\

a=0

b=9/2

c=1/2

Proof:

n=1 ==> u_1=1/2*(9+1)=5

n=2 ==> u_2=2/2*(9+2)=11

n=3 ==> u_3=3/2*(9+3)=18

n=4 ==> u_=4/2*(9+4)=26

n=5 ==> 5/2*(9+5)=35

n=6 ==> 6/2*(9+6)=45

...

Download xls
7 0
3 years ago
Read 2 more answers
Podręcznik matematyka z kluczem 7 zad 1 strona 66 zamień ułamek dziesiętny pewnej wielkości na procent tej wielkości.
Lisa [10]

Answer:

1. 0.05 is 5%

2. 0.78 is 78%

3. 1.39 is 139%

4. 0.6 is 60%

5. 3.08 is 308%

6. 0.2 is 20%

7. 0.67 is 67%

8. 2.8 is 280%

Step-by-step explanation:

To find the percent if the decimal is given, you have simply multiply the decimal by 100. So,

1. 0.05 is 5%

2. 0.78 is 78%

3. 1.39 is 139%

4. 0.6 is 60%

5. 3.08 is 308%

6. 0.2 is 20%

7. 0.67 is 67%

8. 2.8 is 280%

8 0
3 years ago
Based on the measures shown, could the figure be a<br> parallelogram?
xxMikexx [17]
You forgot to include the picture or the measurements.
8 0
3 years ago
Read 2 more answers
Let D be the ordered set of all possible words (not just English words, all strings of letters of arbitrary length) using the La
Lapatulllka [165]

Answer:

To show that A has a supremum is given as,

Step-by-step explanation:

Because A is that the set of all letters from the dictionary starting with the letter 'a'. And as after set A, there'll be a group containing all the opposite words .. so there exists some x during a such every other letter during a comes before it. So it's none aside from a word starting with the letter b therefore the supremum of the set A is letter b.

5 0
3 years ago
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