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3 years ago

Which of the following is a solution of x^2 - 7x = -5

Mathematics

1 answer:

Oduvanchick [21]3 years ago

6 0

Answer: B) 7 + or - the square root of 29 all over 2

Which of the following is a solution of x^2 - 7x = -5

A) 7 + or - the square root of 69 all over 2

B) 7 + or - the square root of 29 all over 2

C) -7 + or - the square root of 29 all over 2

D) -7 + or - the square root of 69 all over 2

Step-by-step explanation:

I just did the assignment and the correct answer is B) 7 + or - the square root of 29 all over 2! Hope this helps.

Good Luck!!

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What is the minimum value?

professor190 [17]

Easy one....
58
There is no difficult explanation. It’s always the left end of the box and whisker plot.

4 0

2 years ago

Consider the expression. (StartFraction 2 m Superscript negative 1 baseline n Superscript 5 Baseline Over 3 m Superscript 0 Base

suter [353]

Answer:

The correct option is option (3) 4 ÷ 25.

Step-by-step explanation:

The expression in terms of <em>m</em> and <em>n</em> is:

$F(m,n)=[\frac{2m^{-1}n^{5}}{3m^{0}n^{4}}]^{2}$

Exponent rule of division:

$a^{x}\div a^{y}=a^{x-y}$

Compute the value of the expression for <em>m</em> = -5 and <em>n</em> = 3 as follows:

$F(m,n)=[\frac{2m^{-1}n^{5}}{3m^{0}n^{4}}]^{2}$

$F(-5,3)=[\frac{2\csdot (-5)^{-1}\cdot (3)^{5}}{3\cdot (-5)^{0}\cdot (3)^{4}}]^{2}$

$=\{\frac{2}{3}\times [(-5)^{-1-0}\times (3)^{5-4}}]\}^{2}\\\\=\{\frac{2}{3}\times \frac{-1}{5}\times 3\}^{2}\\\\=\{-\frac{2}{5}\}^{2}\\\\=\frac{4}{25}$

Thus, the correct option is option (3) 4 ÷ 25.

8 0

3 years ago

Read 2 more answers

Seriously someone help me i answered it but i don’t know if it is right so please tell me if it is and how i got the answer or p

alex41 [277]

Answer:

Step-by-step explanation:

To determine a function rule, look at the table. Input the x and y value from one column into the function to see if it is correct.

<h3>Function a: y = 10 - 2x</h3>

Input values

22 = 10 - 2(6)

22 = 10 - 12

22 ≠ -2 ❌

As we can see, function a gives us a false statement, so a is incorrect.

<h3>Function b: y = 2 - 10x</h3>

Input values

22 = 2 - 10(6)

22 = 2 - 60

22 ≠ -58 ❌

We once again get a false answer, so b is also not correct.

<h3>Function c: y = 10 + 2x</h3>

Input values

22 = 10 + 2(6)

22 = 22 ✔

Finally, we get a true statement, so option c is correct.

<h3>Function d: y = 2 + 10x</h3>

Just to check that option c is correct, we need to prove that d is incorrect.

Input values

22 = 2 + 60

22 ≠ 62 ❌

This is also wrong, so that proves that c is correct.

I'm always happy to help :)

6 0

3 years ago

Estimate the sum of 196 + 482

pshichka [43]

The estimated sum of 196 and 482 is 700.

We do estimates when we do mental calculation. We relate the number to the nearest number that can easily be computed mentally.

196 is near 200 so we round it up to 200
482 is near 500 so we round it up to 500

Thus, 200 + 500 = 700.

700 is the estimated sum.

5 0

3 years ago

Read 2 more answers

James makes $15 per hour. He works 40

AlekseyPX

Answer:

i got 485!

Step-by-step explanation:

multiply 40 by $15 = 600 then subtract 10% = 540 then subtract 7.5% = 499.5 lastly subtract 2.9% = 485 and that's his take home money :)

3 0

3 years ago