3 years ago

Amy has some toy brick

Mathematics

1 answer:

lisabon 2012 [21]3 years ago

5 0

Answer:

Amy has 7 bricks.

Step-by-step explanation:

Sorry but I cannot draw on this. I would if I could.

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Round off then estimate 18.9*5.2

Nataly [62]

18.9 rounded is 19
5.2 rounded is 5

19 * 5 = 95

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3 years ago

Solve <br>In 2x + In 2=0

irakobra [83]

Solving $ln(2x)+ln(2)=0$ we get, $x=\frac{1}{4}$

Step-by-step explanation:

We need to solve: $ln(2x)+ln(2)=0$

Solving:

$ln(2x)+ln(2)=0$

Adding -ln(2) on both sides:

$ln(2x)+ln(2)-ln(2)=0-ln(2)$

$ln(2x)=-ln(2)$

Using logarithmic rule: if $log_a b =c\,\,then\,\, b=a^c$

So,

$2x=e^{-ln(2)}$

Simplifying:

$2x=(e^{ln(2)})^{-1}\\e^{ln(2)}=2\\2x=(2)^{-1}\\2x=\frac{1}{2} \\x=\frac{1}{2x2}\\x=\frac{1}{4}$

So, Solving $ln(2x)+ln(2)=0$ we get, $x=\frac{1}{4}$

Keywords: Logarithms

Learn more about Logarithms at:

#learnwithBrainly

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3 years ago

The polygons are similar. The area of one polygon is given. Find the area of the other polygon.

OleMash [197]

Answer:

Hello! answer: area is 6 cm2

Step-by-step explanation:

Triangle area formula: base × height ÷ 2 or base × height × 1/2 so...

12 × 16 = 192 192 ÷ 2 = 96

12 ÷ 4 = 3

16 ÷ 4 = 4

3 × 4 = 12 12 ÷ 2 = 6 therefore the area is 6 hope that helps!

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3 years ago

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What is the expected number of female children in a family with three children?

Paladinen [302]

The answer is 1.5 females, one way to solve this is to multiply the probability of a female (50%) with the number of girls in total = 3 multiplied by (50%) = 1.5.

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3 years ago

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Sindrei [870]

Answer:

Step-by-step explanation:

88+100+90+87=365

365 divided by 4=91.25

the answer is 88

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3 years ago

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