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Ray Of Light [21]
2 years ago
12

PLEASE HELP WILL GIVE BRAILNLIEST! Find the value of x

Mathematics
1 answer:
julsineya [31]2 years ago
5 0

Answer:

x = 14.63

Step-by-step explanation:

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Find a ⋅ b. a = <5, 2>, b = <4, 5>
cestrela7 [59]

Answer:

  30

Step-by-step explanation:

For a = <xa, ya> and b = <xb, yb>, the dot product is the sum of products ...

  a·b = (xa)(xb) + (ya)(yb)

Substituting the given information, you have ...

  a·b = 5·4 + 2·5 = 20 + 10

  a·b = 30

_____

Some graphing calculators can do such math. There are also dot product calculators available on the Internet. If you have quite a few of these to calculate, you can put the appropriate formula into a spreadsheet.

6 0
3 years ago
When two distinct circles lie in the same plane, what is the largest number of points at which they can intersect?
Rama09 [41]
All the points if they lay on top of eachother

if they arent on top of eachother, they can intersect at 2 points
6 0
3 years ago
The inverse of Fx) is a function.<br> True or False
olga2289 [7]
It is true because it passes the horizontal line test
8 0
2 years ago
Read 2 more answers
Yooooo help thanks ;)))))))))
Nonamiya [84]

Answer:

PST=80

Step-by-step explanation:

So we know that angle R=130 and because this is a parallelogram we can assume angle SPQ also equals 130 and knowing that we can find that angle RQP and RSP are equal both equal to 50 and since we know that RSP=50 we know SPT is also 50 because of alternate angles. SPT is an equilateral triangle so we also know that angle T is 50 degrees. All triangles degrees equal 180 so we can set up the problem the angle SPT(50) + the angle STP(50) + The angle PST(x) = 180 50+50=100 so it is 100+x=180 -100 PST(x)=80

5 0
3 years ago
1.22 on a candy bar, $1.48 on yogurt, $7.98 on a pizza, and $2.79 on bread. If she pays with a $20 bill, how much change will sh
serious [3.7K]

Answer:

She'll receive $6.53.

Step-by-step explanation:

First add everything she purcahsed.

1.22 + 1.48 + 7.98 + 2.79 = 13.47

Then subtract that from how much she paid.

20 - 13.47 = 6.53

So 6 dollars and 53 cents.

7 0
3 years ago
Read 2 more answers
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