3 years ago

ABC and ADC are triangles.

Mathematics

1 answer:

nadya68 [22]3 years ago

7 0

Answer:you have do your know work kid no one is going to help you other than your teacher.

Step-by-step explanation:

Ask your teacher for help.

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The complement of an angle of 22�� is an angle measuring

djverab [1.8K]

Assuming 22 degrees

complement means they add to 90 degrees

22+?=90
minus 22 both sides
?=68

answer would be C

5 0

3 years ago

Please answer this correctly without making mistakes

victus00 [196]

Answer:

Question 2

Step-by-step explanation:

2) The time when she woke up was - 3° C

During nature walk, temperature got 3° C warmer than when she woke up.

So, temperature during nature walk = - 3 + 3 = 0° C

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2 years ago

Which expression is equivalent to (7x+9y)2

Arada [10]

Answer:

$49x^2+126xy+81y^2$

Step-by-step explanation:

Use the square of a binomial theorem

$(a+b)^2$ = $a^2+2ab+b^2$

Now expand the given equation:

$(7x+9y)^2=49x^2+126xy+81y^2$

Hope this helps :)

Have a great day!

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2 years ago

What is the area of a circle with a diameter of 21 centimeters?

sattari [20]

Area of a circle: πr²

Data:
diameter: 21 cm
radius=diameter/2=21 cm/2=10.5 cm

area of this circle: π(10.5 cm)²=110.25π cm² (≈346.36 cm²)

Answer: area=110.25π cm²

4 0

3 years ago

Read 2 more answers

I need help please show work

FrozenT [24]

Sooo soooo sooo sory but idk

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3 years ago