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svetoff [14.1K]
2 years ago
8

7th grade work really need help on this!

Mathematics
1 answer:
seropon [69]2 years ago
4 0

I really don’t know

I really dont know

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I am flooding these ( T_T)
dimulka [17.4K]
That should be 5 2/3 qt.
7 0
3 years ago
A piece of string measures 2 16/20. Which of the following is equivalent to the length of the string in meters?
Ivenika [448]

Answer:

H: 2.8

Step-by-step explanation:

first divide 16 by 20 then you get a decimal.

then you add the decimal answer to the whole number (2)

7 0
3 years ago
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Triangle ABC has side a= 12, b=16, and c=c find the measure of angle a to the nearest whole number
Aleks04 [339]
C would equal 20. because 12 times its self plus 16 times its self equals 400. then I square 400 and  got 20, which equals c 
5 0
3 years ago
Solve the following system using substitution
julsineya [31]
Change x+y=5 to y=5-x
x+5-x=-3
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The answer is no solution. :)
5 0
3 years ago
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Need help ASAP!!!!!!
trapecia [35]

Answer:

see explanation

Step-by-step explanation:

x² + 3x + 7 = 5 ( subtract 5 from both sides )

x² + 3x + 2 = 0 ← in standard form

(x + 2)(x + 1) = 0 ← in factored form

Equate each factor to zero and solve for x ( zero product rule )

x + 2 = 0 → x = - 2

x + 1 = 0 ⇒ x = - 1

--------------------------------------------------------------

x² - 2 = - 2x² + 5x ( subtract - 2x² + 5x from both sides )

3x² - 5x - 2 = 0 ← in standard form

(3x + 1)(x - 2) = 0 ← in factored form

Equate each factor to zero and solve for x

3x + 1 = 0 ⇒ 3x = - 1 ⇒ x = - \frac{1}{3}

x - 2 = 0 ⇒ x = 2

------------------------------------------------------------

(x + 3)² + 4x = 0 ← expand left side using FOIL and simplify

x² + 6x + 9 + 4x = 0

x² + 10x + 9 = 0 ← in standard form

(x + 9)(x + 1) = 0 ← in factored form

Equate each factor to zero and solve for x

x + 9 = 0 ⇒ x = - 9

x + 1 = 0 ⇒ x = - 1

4 0
3 years ago
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