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Alexandra [31]
3 years ago
11

PLEASE HELP ASAP!!! WILL MARK BRAINLIEST!!!!

Mathematics
1 answer:
crimeas [40]3 years ago
6 0

Answer:

Part 1) -\sqrt{15}

Part 2) x=\frac{b+ac}{2c-ab}

Step-by-step explanation:

Part 1) we know that

To put factor back into the square root, we have to put squared value

we have

-5\sqrt{0.6}

Remember that

5=\sqrt{5^2}

substitute in the expression above

-5\sqrt{0.6}=-\sqrt{(5^2)(0.6)}=-\sqrt{25*0.6}=-\sqrt{15}

Part 2) we have

\frac{2x-a}{b}=\frac{ax+1}{c}

Solve for x

That means----> Isolate the variable x

Multiply in cross

(2x-a)c=(ax+1)b

Apply distributive property

2cx-ac=abx+b

Group terms

2cx-abx=b+ac

Factor x left side

x(2c-ab)=b+ac

Divide by (2c-ab) both sides

x=\frac{b+ac}{2c-ab}

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Megan picks a card from a deck of cards numbered 1-10 and rolls a number cube. What is the probability she chooses a card with a
ehidna [41]

Answer:

1/20 if there is only those 10 cards in a deck and 1/26 if there is 52 cards in the deck.

Step-by-step explanation:

There is 3/6 chances to roll a die with an even number, aka 1/2. If there are only 10 cards in the deck and only one of them has the number 5, it's 1/10. To find the probability of both these things happening, multiply the probabilities. 1/10 x 1/2 is equal to 1/20. However, since the question doesn't specify if there is 52 cards like a normal deck and 4 5's etc, there can be a different answer because if there's 52 cards in a deck, 4 of them 5's, the chance of getting a 5 is 4/52 or 1/13 and then you multiply that by 1/2 to get 1/26

4 0
3 years ago
Read 2 more answers
8. Find the congruence transformation that maps ∆ABC to ∆A’B’C’. Explain your reasoning
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The transformation is a reflection on the y-axis. 

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6 0
3 years ago
Which two numbers add up to ___ and multiply to ___?
Assoli18 [71]
<span>1. multiply to -18 add to -17 = Multiplying -18 and 1 will give -18 as the result and then on adding -18 and + 1 the result comes to -17
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</span><span>3. multiply to -24 add to -5<span>= </span></span><span>Multiplying -8 and +3 will give -24 as the result and then on adding -8 and +3 the result comes to -5
4. multiply to -18 add to 7= </span><span>Multiplying +9 and -2 will give -18 as the result and then on adding +9 and -2 the result comes to 7
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3 0
3 years ago
Need help asap plz help
Soloha48 [4]

Number three is D and number 4 is also D.

Explanation for number three:

When you divide 12 by 3, you get 4. This gives us the number we need to multiply 10 by to get our answer. 10 x 4 = 40

Explanation for number 4:

In the last question, the first step to getting to the answer was to divide the first two numbers. This is no different. When you divide 32.5 by 5, you get 6.5. Then you multiply 10 and 6.5, which equals 65.

8 0
2 years ago
WILL GIVE BRAINLIEST!!!​
Dahasolnce [82]

Answer:

(3/4)*x

Step-by-step explanation:

Dilation really means  the multiply the scale factor  to every segment of the original figure or shape to get the new transformed figure.

so  (3/4) * (segment lengths) = (new segment lengths)

5 0
3 years ago
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