Can someone please help?

Mathematics

2 answers:

ser-zykov [4K]3 years ago

8 0

Answer:

parallelogram formula is: a=bh

Rectangle formula is: a=lw

triangle formula is: A = 1/2 bh

trapezoid formula is: A = ½ (a + b) h

Step-by-step explanation:

iris [78.8K]3 years ago

4 0

Answer:

Paralellogram's area would be A = bh (or base times height)
Rectangle or square would be A = lw (length times width)
Triangle would be A = 1/2 bh (basically divide the base x height by 2)
Trapezoid would be A = 1/2 (a+b)h (or for me I do base 1 which is a and base 2 which is b times height and then divide by 2 or division then multiplication first)

Step-by-step explanation:

I hopes this helped :)

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Factorization 36+121c2+132c

Sliva [168]

Answer:

(6+11c)^2

hope this helps :)

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4 years ago

Read 2 more answers

Can someone help me

Lemur [1.5K]

Multiplying fractions is just multiplying the numerators together and the denominators together.

$\sf\dfrac{4}{7}\times\dfrac{1}{4}\rightarrow\dfrac{4\times 1}{7\times 4}\rightarrow\dfrac{4}{28}\rightarrow\dfrac{1}{7}$

$\sf\dfrac{4}{7}\times\dfrac{1}{6}\rightarrow\dfrac{4\times 1}{7\times 6}\rightarrow\dfrac{4}{42}\rightarrow\dfrac{2}{21}$

To find out which one is bigger, we need a common denominator. The LCM of 7 and 21 is 21, so convert the first fraction into a denominator of 21. 7 goes into 21 three times, multiply this to the numerator and denominator:

$\sf\dfrac{1}{7}\rightarrow\dfrac{1\times 3}{7 \times 3}\rightarrow\dfrac{3}{21}$

Now just compare the numerators to see which one is bigger.

$\sf\dfrac{3}{21}>\dfrac{2}{21}$ therefore, $\sf\dfrac{4}{7}\times\dfrac{1}{4}>\dfrac{4}{7}\times\dfrac{1}{6}$

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4 years ago

Gavin needs $80 to buy a fish tank. He has saved $8 and plans to work as a babysitter to earn $9 per hour. Which inequality show

andrezito [222]

So the answer would be 8+9n≥80. The reason why is because he has $80 and he saved $8 and he earned $9 for each hour but we do not know how many hours so that is why it is n. and it says minimum so u might think that it might be ≤ but my sister says to think the opposite so the symbol will be ≥.

Check:  IT SAYS THAT N IS GREATER THAN 8 SO CHOOSE A NUMBER GREATER THAN 8 WHICH CAN BE 9.

8+9n≥80
8+9*9≥80
8+81≥80
90≥80, so this makes sense.

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3 years ago

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A scale drawing of a square has a side length of 6 millimeters. The drawing has a scale of 1 mm : 7 km. Find the actual perimete

zvonat [6]

Answer:

The real perimeter is:

$P= 24 mm *\frac{7 km}{1mm}= 168 km$