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liubo4ka [24]
3 years ago
12

HELP

Mathematics
1 answer:
Lostsunrise [7]3 years ago
3 0

Answer:

A.

{b}^{2}  + 3b - 3 = 0

Step-by-step explanation:

{b}^{2}  + 3b - 3 = 0 \\ because \:  \:  {b}^{2}  < 4ac \\ {b}^{2}    = {3}^{2}  = 9 \\ 4ac = 4 \times 1 \times  - 3 =  - 12 \\ hence :  {b}^{2}  < 4ac

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Solve the following equation
Ulleksa [173]

Answer:

n = 20

Step-by-step explanation:

n/2 - 9 = 1

Add 9 to each side

n/2 -9+9 = 1+9

n/2 = 10

Multiply by 2 on each side

n/2*2 = 10*2

n = 20

6 0
4 years ago
What is the value of m in the equation {m-án=16, when n = 8?<br> A 20<br> B 32<br> C 44<br> D 48
irina [24]

Answer:

32

Step-by-step explanation:

m-án=16, when n = 8

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3 years ago
$53,000 is placed in an investment account that grows at a fixed rate of 2% (compound growth) per year. how much is in the accou
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Answer:

$57,369

Step-by-step explanation:

We have been given that an amount of $53,000 is placed in an investment account that grows at a fixed rate of 2% (compound growth) per year. We are asked to find the amount in the account after 4 years.

To solve our given problem we will use compound interest formula.\

A=P(1+\frac{r}{n})^{nt}, where,

A = Final amount after t years,

P = Principal amount,

r = Annual interest rate in decimal form,

n = Number of times interest is compounded per year,

t = Time in years.

Let us convert our given rate in decimal form.

2\%=\frac{2}{100}=0.02

Upon substituting our given values in compound interest formula we will get,

A=\$53,000(1+\frac{0.02}{1})^{1*4}

A=\$53,000(1+0.02)^{4}

A=\$53,000(1.02)^{4}

A=\$53,000*1.08243216

A=\$57368.90448\approx \$57,369

Therefore, an amount of $57,369 will be in the account after 4 years.

3 0
3 years ago
A tessellation has 2 pairs of congruent angles around the point of intersection. The measure of each of one pair of congruent an
Over [174]

9514 1404 393

Answer:

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The measure of each angle in the other congruent pair is 152°.

8 0
3 years ago
There are two sets of traffic lights outside Eric's house. One day, he times how often they change. Set A turns green every 60 s
Otrada [13]

Answer:

12:07pm

Step-by-step explanation:

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420 s = 7 mins

3 0
4 years ago
Read 2 more answers
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