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3 years ago

Solve the equation without the use of a calculator. please Help!!! Thank you!!! 5=x^2-4x

Mathematics

1 answer:

grin007 [14]3 years ago

8 0

For this question the answer is x= 5, -1

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From a group of five boys and seven girls, two boys and three girls will be selected to attend a conference. In

babunello [35]

Step-by-step explanation:

Number of combinations

= 5C2 * 7C3

= 10 * 35

= 350.

Hence there are 350 possible ways.

P.S.

5C2 = 5! / (2!3!) = 120 / (2 * 6) = 10.

7C3 = 7! / (3!4!) = 5040 / (6 * 24) = 35.

3 0

2 years ago

Mr. Parker's farm borders a river. He buys 1,000 ft of fencing

Gelneren [198K]

When one side of a quadrilateral is not to be fenced (ex. a river, as in this case), the optimal fencing to maximize the area is always to use half the fencing for the length, and one-fourth for each of the two widths

A) For 1000 ft of fencing which is to be used to cover 1 length and 2 widths:
L = 1000/2 = 500, and W = 1000/4 = 250. The optimal dimensions will be 250 x 500 ft.

B) This will result in an area of 250*500 = 125,000 sq. ft.

8 0

2 years ago

What type of algebra is 3.75(18) + 4.25(32) = 316

quester [9]

Algebra 1, solving equations/finding real solutions

3 0

2 years ago

Read 2 more answers

How do I do this? Please explain

kicyunya [14]

Answer:

$\frac{1}{16}$

Step-by-step explanation:

With a negative fractional exponent place a 1 over the positive value

$\frac{1}{ {8}^{ \frac{4}{3} } }$

rewrite 8 as

$( {2}^{3} ) ^{ \frac{4}{3} }$

apply the power rule and multiply the exponents.

cancel the common factor of 3

rewrite the expression

$\frac{1}{ {2}^{4} }$

raise 2 to the power of 4 which =16

so the answer is

$\frac{1}{16}$

5 0

2 years ago

EASY QUESTION 20 POINTS& BRAINLIEST

xenn [34]

Answer:

See explanation below, and see attached photo for graphs

Step-by-step explanation:

To graph 3x + y = 6, find the x and y intercepts.

We get the x intercept when y = 0, so plug in 0 for y and solve...

3x + 0 = 6

3x = 6

x = 2, so the x intercept is at (2, 0)

We get the y intercept when x = 0, so plug in 0 for x and solve...

3(0) + y = 6

y = 6, so the y intercept is at (0, 6)

Plot those two points and draw a line through them

To graph -3x - 4y = 12, find the x and y intercepts.

We get the x intercept when y = 0, so plug in 0 for y and solve...

-3x - 4(0) = 12

-3x = 12

x = -4, so the x intercept is at (-4, 0)

We get the y intercept when x = 0, so plug in 0 for x and solve...

-3(0) - 4y = 12

-4y = 12

y = -3, so the y intercept is at (0, -3)

Plot those two points and draw a line through them

6 0

3 years ago