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prisoha [69]
3 years ago
13

10 POINTS AND BRAINLIEST! QUESTIONS IN PICTURES

Mathematics
1 answer:
alina1380 [7]3 years ago
8 0
13.c

Half circle + rectangle
(1/2)3.14(11^2) + 22(10)
190 + 220
410 cm^2

16. D
2 triangles+ top rectangle.+ middle rectangle + lowest rectangle
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Michelle bought 4 gallons of grape juice and 5 gallons of apple juice for a party. What is the ratio of gallons of apple juice t
ivann1987 [24]

Answer: 4 to 5

5to 4

Step-by-step explanation:

4 0
3 years ago
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Is 3 1/2 a whole number
Alina [70]
No it isnt. hope this helps
7 0
3 years ago
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Can anyone help me with this one
aleksandrvk [35]
50 hours!

825 (paycheck left over) + 25 (the shirt that was subtracted because he bought it) = $850 total
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8 0
2 years ago
PLEASE HELP! find the inverse matrix​
Sauron [17]

Answer:

see explanation

Step-by-step explanation:

The inverse of a matrix A = \left[\begin{array}{ccc}a&b\\c&d\\\end{array}\right] is

A^{-1} = \frac{1}{ad-bc} \left[\begin{array}{ccc}d&-b\\-c&a\\\end{array}\right]

If ad - bc = 0 then the matrix has no inverse

A = \left[\begin{array}{ccc}11&-5\\3&-1\\\end{array}\right]

ad - bc = (11 × - 1) - (- 5 × 3) = - 11 - (- 15) = - 11 + 15 = 4 , then

A^{-1} = \frac{1}{4} \left[\begin{array}{ccc}-1&3\\-5&11\\\end{array}\right] = \left[\begin{array}{ccc}-0.25&0.75\\-1.25&2.75\\\end{array}\right]

3 0
3 years ago
Read 2 more answers
Please number them so I know witch question your answering
Valentin [98]
15.
4(x-2) = 2(x-4)+2x
i used the distributive property on the parantheses to then get...
4x-8 = 2x-8+2x
I combined the like terms to then get...
4x-8 = 4x-8
+8 +8
4x = 4x
which simplifies to....
x=x
so the answer to question 15 is x=x

17.
-4(p+1) = -2(8-2p)
I used the distributive property on the parantheses....
-4p-4 = -16+4p
+4 +4
-4p = -12+4p
-4p -4p
-8p = -12
÷-8 ÷-8
p = 1.5

so the answer to question 17 is p = 1.5

hope this helps!!!!
5 0
3 years ago
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