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blondinia [14]
3 years ago
9

I need help with this quickly

Mathematics
1 answer:
nata0808 [166]3 years ago
5 0
I'm pretty sure the right answer would be B

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In triangle JKL, JKL is a right angle, KM and is an altitude. JL=20 and ML=15, find KL
ss7ja [257]

Answer:

KL = 17.32

Step-by-step explanation:

KL² = (M L)(J L)

KL² = (15)(20)

KL²=300

√KL²= √300

KL = 17.32

4 0
3 years ago
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You have invested $12,000 into two different companies company 1 earns you 6% on your investment each year and Company 2 earns y
vovikov84 [41]

The correct questions says 5% each year for Company 2.

The amount invested in companies A and B are; $10,000 and $2000 respectively.

<h3>Percentages on Investment</h3>

Let the amount in Company 1 be; x

Let the amount in Company 2 be; y

Hence, we have the equation;

  • x + y = 12,000

Additionally, 6% is earned on company 1 and 50% on company 2.

Therefore, we have;

  • 0.06x + 0.05y = 700

  • 6x + 5y = 70000

by solving the equation simultaneously;

  • 6(12000 -y) + 5y = 70000

  • 72000 - 6y + 5y = 70000

  • y = $2000

  • x = $12000 - $2000

  • x = 10000

  • x = $10,000

Read more on simultaneous equations;

brainly.com/question/16863577

4 0
3 years ago
Explain the error in the work shown. Find the
weeeeeb [17]

Answer:

a = - \frac{3}{4}

Step-by-step explanation:

The correct solution of the given equation is as follows :

We have,

\frac{1}{64} = 16^{2a}

⇒ 4^{- 3} = (2^{4} )^{2a}

⇒ 2^{(2 \times (-3))} = 2^{8a}

⇒ 2^{- 6} = 2^{8a}

Comparing the power of equal base, we get

- 6 = 8a

⇒ a = - \frac{6}{8}

⇒ a = - \frac{3}{4}

Therefore, before equating the powers of two terms the base of the terms should be equal and here this is the error. (Answer)

3 0
3 years ago
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The smith family went out to dinner the price iod the meal was 29.85 the sales tax was 6% of the price of the meal the Tip was 1
alisha [4.7K]

Answer:

The amount is $36.12

Step-by-step explanation:

To find the cost of the meal, find the tax and tip. You can find each by multiplying the amount of the meal by the percentages.

$29.85 * 6% = 1.79

$29.85 * 15% = 4.48

Now we can add all three together.

29.85 + 1.79 + 4.48 = 36.12

4 0
3 years ago
Determine if the graph is symmetric about the x-axis, the y-axis, or the origin. r = 4 cos 5θ
Agata [3.3K]

Answer:

It's symmetrical to the origin

Step-by-step explanation:

Use desmos for further graphing

6 0
3 years ago
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