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Delicious77 [7]
3 years ago
6

I’m so confused I need help please!!

Mathematics
2 answers:
shutvik [7]3 years ago
6 0

Answer:

5. 9 8. 2\sqrt{10}

Step-by-step explanation:

a²+b²=c²

so for #5 12²+b²=15²

144+b²=225 (subtract 144 from both sides)

b²=81

b=9

For #8

9²+b²=11²

81+b²=121 (subtract 81 from both sides)

b²=40

b=\sqrt{40}

\sqrt{40}=

2\sqrt{10}

spayn [35]3 years ago
6 0
What they said !!!!!!!^
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5x - 2z = 8 -2y + 9z = 50 6x + 9y + 9z = 96
sergiy2304 [10]

Answer:

there r algebra calulators you could use

Step-by-step explanation:

5 0
3 years ago
In simple terms, how do u factor a polynomial by distribution? for example " 36a^2 + 24a?​
rewona [7]

Answer:

6a (6a + 4)

Step-by-step explanation:

What is the highest number that goes both into 36 and 24? That is 6. What else do they have in common? The letter a

So 6a(6a + 4)

4 0
2 years ago
What's 2x1 1/4x1 1/2 <br> I need this answer
kolezko [41]
The answer would be 3.75
8 0
3 years ago
Read 2 more answers
Help on number 8? Helper gets points. Please show work :p.
Monica [59]

Student P:

They messed up in step 1 because they made the 7.75 positive instead of negative, which causes the entire solution to be wrong

Student Q:

They were correct up until step 3. They didn't take all the negatives out of the equation (ex. -(3.5+7.75+29.67)).

Complete set:

From the picture, it looks like the original problem was

-2.5(1.4+3.1)+6.9(-4.3)

Step 1: multiply

1.4(-2.5)+3.1(-2.5)+6.9(-4.3)

Step 2: subtract (add?) them all together

-3.5-7.75-29.67

Step 3 should equal -40.92

4 0
3 years ago
Find the value of angle x ​<br><br><br><br>pls answer
Fiesta28 [93]

Answer:

110

Step-by-step explanation:

lets assume y is the angle next to x which should complete to form a 360.

50 + 25 + 35 + y = 360

y = 250

x + y = 360

x + 250 = 360

x = 110

5 0
3 years ago
Read 2 more answers
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