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Svetradugi [14.3K]
3 years ago
12

Please help. I have to get the test done by today ​

Mathematics
2 answers:
mixer [17]3 years ago
7 0

Answer:

<h3><em><u>4=40</u></em></h3>

Step-by-step explanation:

<h3>because you add up all those angles on straight line you get your 180 degrees.</h3>

miss Akunina [59]3 years ago
5 0

Answer:

4=40

Step-by-step explanation:

because you add up all those angles on staight line you get your 180 degrees.

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Describe the change int he radius of a circle when the area is multiplied by 1/4.
Marianna [84]
I think the correct answer is C. Since a=πr², in order to get the area to become 1/4 of what it was previously, the radius needs to be cut in half to make the divide that side by 4.  a=π(r/2)²=πr²/4 and will therefore multiply the area by 1/4.
4 0
3 years ago
Evaluate the numerical expression.
alisha [4.7K]

Answer:

C) -8.4

Step-by-step explanation:

Parenthesis

Exponents

Multiply

Divide

Add

Subtract


Divide <

10.8 / 0.6

= 18


Subtract <

9.6 - 18

= -8.4


- I.A -


4 0
4 years ago
What the approximate volume of the cylinder below in cubic centimeters???
brilliants [131]

\huge{ \mathcal{  \underline{ Answer \:  \: }}} ✓

____________________________

\huge\boxed{volume =\pi {r}^{2}h  }

  • \dfrac{22}{7}  \times 7 \times 7 \times 5.5

  • 22 \times 7 \times 5.5

  • \boxed{847 cm^3}

____________________________

\mathrm{ \#TeeNForeveR}

4 0
3 years ago
What translation was used on ABCD to produce A'B'C'D'?
Mashutka [201]
First of all, we need to know the coordinate of ABCD and A'B'C'D', so the coordinate of ABCD will be:
A(-3,5)
B(-1,2)
C(-2,-1)
D(-5,-3)
Then, coordinate of new figure will be:
A'(-7,8)
B'(-5,5)
C'(-6,2)
D'(-9,0)
Next,
Let's try all the translations:
(x,y) to (x+4,y+3)
A(-3,5) to A'(-3+4, 5+3)
A(-3,5) to A'(1,8)
Which is not right because A' need to be (-7,8)
(x,y) to (x-4,y+3)
A(-3,5) to A'(-3-4,5+3)
A(-3,5) to A'(-7,8)
B(-1,2) to B'(-1-4,2+3)
B(-1,2) to B'(-5,5)
C(-2,-1) to C'(-2-4,-1+3)
C(-2,-1) to C'(-6,2)
D(-5,-3) to D'(-5-4,-3+3)
D(-5,-3) to D'(-9,0)
Yay, we found the answer. As a result, (x,y) to (x-4,y+3) is your final answer. Hope it help!
7 0
4 years ago
Suppose you pick two cards from a deck of 52 playing cards. What is the probability that they are both queens?
photoshop1234 [79]

Answer:

0.45% probability that they are both queens.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes

The combinations formula is important in this problem:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

Desired outcomes

You want 2 queens. Four cards are queens. I am going to call then A,B,C,D. A and B is the same outcome as B and A. That is, the order is not important, so this is why we use the combinations formula.

The number of desired outcomes is a combinations of 2 cards from a set of 4(queens). So

D = C_{4,2} = \frac{4!}{2!(4-2)!} = 6

Total outcomes

Combinations of 2 from a set of 52(number of playing cards). So

T = C_{52,2} = \frac{52!}{2!(52-2)!} = 1326

What is the probability that they are both queens?

P = \frac{D}{T} = \frac{6}{1326} = 0.0045

0.45% probability that they are both queens.

4 0
3 years ago
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