All categories

3 years ago

I just need confirmation that i’m doing this right

Mathematics

2 answers:

Ipatiy [6.2K]3 years ago

8 0

*plz explain cuz I can’t see the picture*

lorasvet [3.4K]3 years ago

5 0

The picture is unclear

You might be interested in

what are the possible numbers of positive real, negative real and complex zeros of f(x)=4x^3+x^2+10x-14

adoni [48]

Answer:

Positive real 1

Negative real 0

Complex 2

Step-by-step explanation:

∵ 4x³ + x² + 10x - 14 = 0 is third degree

∴ It has three roots:

1 positive real root

2 conjugate complex roots

6 0

3 years ago

Suppose that your boss must choose four employees in your office to attend a conference in Jamaica. Because all 15 of you want t

oksano4ka [1.4K]

Answer:

1 / 1365

Step-by-step explanation:

Given that :

Number of employees to choose from = 15

Number of employees to be chosen = 4

Probability of choosing You, Kyle, Carol and Adam

Recall ;

P(A) = number of required outcome / Total possible outcomes

Number of required outcome = 4C4

Total possible outcomes = 15C4

nCr = n! ÷ (n-r)!r!

Using calculator to save computation time :

15C4 = 1365

4C4 = 1

P(choosing you, Kyle, Carol and Adam) :

1 / 1365

3 0

3 years ago

There are bricks of silver and bricks of gold. When 5 silver bricks and 2 gold bricks are placed on a scale, the weight is 119 o

Illusion [34]

Answer:

The weight of one gold brick is 15 ounces and the weight of one silver brick is 22 ounces.

Step-by-step explanation:

Given,

Weight of 5 silver bricks and 2 gold bricks = 119 ounces.

And Weight of 4 silver bricks and 11 gold bricks = 302 ounces.

We have to find out weight of each type of brick.

Solution,

Let the weight of 1 silver brick be x.

And the weight of 1 gold brick be y.

Since the weight of 5 silver bricks and 2 gold bricks is 119 ounces.

So we can frame it in equation as;

$5x+2y=119\ \ \ \ \ equation\ 1$

Again,

The weight of 4 silver bricks and 11 gold bricks is 302 ounces.

So we can frame it in equation as;

$4x+11y=302\ \ \ \ \ equation\ 2$

Now, multiplying equation 1 by 4 and equation 2 by 5 we get;

$4(5x+2y)=119\times4\\\\20x+8y=476\ \ \ \ \ equation\ 3$

$5(4x+11y)=302\times5\\\\20x+55y=1510\ \ \ equation\ 4$

Now subtract equation 3 from equation 4, we get;

$(20x+55y)-(20x+8y)=1510-476\\\\20x+55y-20x-8y=1034\\\\47y=1034\\\\y=\frac{1034}{47}\\\\y=22$

On substituting yhe value of y in equation 1, we get;

$5x+2y=119\\\\5x+2\times22=119\\\\5x+44=119\\\\5x=119-44=75\\\\x=\frac{75}{5}\\\\x=15$

Thus the weight of one gold brick is 15 ounces and the weight of one silver brick is 22 ounces.

4 0

4 years ago

Is 5/8 grader than 1/2 or less?

Zolol [24]

Yes it is because 1/2 is 50% and 5/8 is not

6 0

4 years ago

Read 2 more answers

Camila measured a line to be 17.5 inches long. If the actual length of the line is 18.5 inches, then what was the percent error

Kryger [21]

The percent error of the measurement was approximately 5.4% error

This is because Percent Error= (Vobserved-Vtrue)/Vtrue

Also my name is Camila :) please mark me Brainliest

4 0

3 years ago