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3 years ago

Write the equation 0.3x 2 + 5x - 7 = 0 in general form and then choose the value of "b."

Mathematics

2 answers:

bija089 [108]3 years ago

7 0

The answer should be 50 the second option is the correct

USPshnik [31]3 years ago

6 0

The general form of a quadratic equation is that which is expressed in a form,
ax² + bx + c = 0
To write the equation in its general form, eliminate the decimal by multiplying the equation by 10. It now becomes,
3x² + 50x - 70 = 0
The value of b is therefore 50 and the answer is the second choice.

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X^2+2y=19<br> X^2+y^2=34

Katen [24]

Answer:

x=3

y=5

Step-by-step explanation:

3×3=9

5×5=25

9+25=34

[3^2+5^2=34]

3^2=9

2×5=10

9+10=19

[3^2+2×5=19]

5 0

3 years ago

Using the relationships between

Pavlova-9 [17]

Answer:

They will always intersect at one point

Step-by-step explanation:

6 0

2 years ago

This keeps on confusing me. Please explain it to me.

9966 [12]

Answer:

x=-10

Step-by-step explanation:

the picture is showing

1+1= -1 + -1 + -1 + -1 + -1 + -1 + -1 + -1 + -x

simplified its:

2= -8 + -x

I think that the answer is x=-10 cuz if u did -8 - -10 then the two negatives make a positive and it makes 2 but idk if the minus sign before the x means minus or negative so this might be the answer but dont blame me if im wrong. I warned you. If its right plz write that.

4 0

3 years ago

Altred is saving up money for a down payment on a house. He currently has $4739, but knows he can get a loan at a lower interest

Stella [2.4K]

Given the word problem, we can deduce the following information:

Principal amount = $4739

Future amount = $5336

Interest = 5.1 % =0.051

To determine the time to accumulate the $5336, we use the compound interest formula:

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

A=Future amount=$5336

P=Present amount=$4739

r=interest rate = 0.051

n=number of compounding periods =12

t=time in years

We also note that the number of compounding periods must be 12 since the investment is compounded monthly.

We plug in what we know:

$\begin{gathered} A=P(1+\frac{r}{n})^{nt} \\ 5336=4739(1+\frac{0.051}{12})^{12t} \\ Simplify\text{ and rearrange} \\ 5336=4739(\frac{12.051}{12})^{12t} \\ 12t=\frac{\ln\frac{5336}{4739}}{\ln\frac{12.051}{12}} \\ t=\frac{\operatorname{\ln}\frac{5,336}{4,739}}{12\operatorname{\ln}\frac{12.051}{12}} \\ Calculate \\ t=2.33 \end{gathered}$

Therefore, the answer is 2.33 years.

5 0

1 year ago

HELP ILL GET KILLED PLESAE HELP I KNOW NO ONES NOT BUT PLEASEEEEEIs the system of equations consistent, consistent and coinciden

Soloha48 [4]

I think 3x-4y-6=0
[don't KILL me if it's incorrect]

4 0

3 years ago