3 years ago

Find the Perimeter and Area of the following:

Mathematics

1 answer:

Lynna [10]3 years ago

5 0

Peramter 7 and area 49

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Please help with this

snow_lady [41]

Answer:

B. $- \frac{9}{8}$

Step-by-step explanation:

$\huge\frac{ - 2 {a}^{ - 3} {b}^{2} }{a} \\ \\ \huge = \frac{ - 2 {b}^{2} }{a \times{a}^{ 3} } \\ \\ \huge = \frac{ - 2 {b}^{2} }{{a}^{ 4} } \\ \\ \huge = \frac{ - 2 \times {3}^{2} }{ {( - 2)}^{4} } \\ \\ \huge= \frac{ - 2 \times 9}{16} \\ \\ \huge \red{= - \frac{9}{8} }$

8 0

3 years ago

Combine the like terms of the expression (8 + 6x) + (-4 + 9c). Explain how you simplified the expression in each step. * pls hel

Delicious77 [7]

Answer: 6x+9c+4

Step-by-step explanation: (8 + 6x) + (-4 + 9c)

8+6x-4+9c

6x+9c+8-4

6x+9c+4

8 0

3 years ago

I think number 9 is b or c, i don't know what 10 is. please help me!!!

scoray [572]

10 is letter b. I hope this helps!!!

7 0

4 years ago

Three angles of a quadrilateral are 75°, 90° and 75°. What is the measure of the fourth angle?

Sergio039 [100]

the inside of quadrilateral is always 360°.So add 75°,90° and 75° and then subyaract from360°.

x+75°+75°+90°=360

×+240°=360°

x=360°-240°

x=120°

4 0

3 years ago

I need this done today whoever gets this correct gets brainliest!!! PLZZ HELPP MEE!!!<br> hurryy!!

kenny6666 [7]

Answer:

i dont know if this is right but 0.125 for every one cup i got this by dividing the fractions

3 0

3 years ago