PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA 40 POINTS* DONT SKIP :(( .!

PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA 40 POINTS* DONT SKIP :(( .!

Answers

Answer 1

Answer:

B) one solution

Step-by-step explanation:

to understand thisyou need to know about:linear equationPEMDAStips and formulas:[tex]\sf\text{a system of linear equation has only one solution if $\frac{a_1}{a_2}\neq \frac{b_1}{b_2}$}[/tex]given:[tex] \begin{cases}2x - 4y = - 1 \\ 8x - 11y = - 19 \end{cases}[/tex]let's solve:

[tex] \sf substitute \: the \: value \: of \: a \: b : \\ \frac{2}{8} \ne \frac{ - 4}{ - 11} \\ [/tex]

[tex]\text{$\therefore$ the system of linear equation has only one solution}[/tex]


Related Questions

Type your answer in the box.

y = 10 b = 6

Answers

Answer:

The answer is -60 (I believe)

Step-by-step explanation:

3(-10)-5(6)

-30-30 = -30+-30

-30+-30= -60

The answer is -60

Step-by-step explanation:

If y = 10 and b = 6 Then

3(-y) - 5b

= 3 *( - 10 ) - 5 * 6

= - 30 - 30

= - 60

Hope it will help :)❤

If x + 10 = 70, what is x?
Α. 40
B. 50
C. 60
D. 70
E. 80

Answers

Answer:

×+10=70

you take 10 to the other side .... and it'll change signs ..as it was positive it will be negative then you simply say

×=70-10

×=60

Plssss HELPPP I DONT wanna fail o(≧口≦)o

Answers

Answer:

1/4

3/8

3/4

Step-by-step explanation:

Fairly rough estimates as the image doesn't look perfectly to scale!

Plss this is timed will mark brain least if shown work!

Answers

Answer:

I just answered this

do 62.31/3 which is 20.77 so 1 shirt cost 20.77

now do 20.77+3.66 which is 24.43

so the answer is C. $24.43

Simplify the expression (-7 + 2)(8) =​

Answers

-40

Explanation:
(-7+2) would equal -5, then you multiply -5 by 8 and you get -40.

Answer:

-40

Step-by-step explanation:

(-7 + 2)(8)

(-5)(8)

-40

Please help will give lot of points

Answers

Answer:

C

B

A

Step-by-step explanation:

Graph:

If ABCD is a parallelogram and angle A is 120 degrees, what is the measure of angle D?

Answers

the answer is 60. the second answer choice. 180-60=120.

Answer:

given angle A =120degree

angle D =60 degree

because angle A+angle B=180 degree

hope it is right answer for it!!

Use long division to find the value of 1,875 - 15​

Answers

Answer:

125

Step-by-step explanation:

Assuming 1875-15 means 1875/15

Help please
look picture and match

Answers

Answer:

Rectangle= Choice four

Square= Choice three

Trapezoid= Choice one

Parallelogram= Choice two

Rhombus= Choice five

-----------------------------------------------------

I think these are the correct answers. Hope this helps!

Need help with this question

Answers

Answer:

Step-by-step explanation:

EB = 1.25×BC

x+5 = 1.25(x+1)

x+5 = 1.25x + 1.25

3.75 = 0.25x

x = 15

In a normal distribution, 68% of the data fall within how many standard
deviations of the mean?
A. Two standard deviations
B. One standard deviation
C. It cannot be determined from the given information.
D. Three standard deviations

Answers

B, my teacher just taught us this :)

In a normal distribution of data, 68% of the data fall within one standard deviations of the mean.

What do you mean by normally distributed data?

Normally distributed data is the distribution of probability which is symmetric about the mean.

The mean of the data is the average value of the given data.The standard deviation of the data is the half of the difference of the highest value and mean of the data set.

According to the empirical rule, also known as 68-95-99.7 rule, the percentage of values that lie within an interval with 68%, 95% and 99.7% of the values lies within one, two or three standard deviations of the mean of the distribution.

[tex]P(\mu - \sigma < X < \mu + \sigma) = 68\%\\P(\mu - 2\sigma < X < \mu + 2\sigma) = 95\%\\P(\mu - 3\sigma < X < \mu + 3\sigma) = 99.7\%[/tex]

Here the mean of distribution of X is [tex]\mu[/tex]  and standard deviation from mean of distribution of X is [tex]\sigma[/tex].

Thus, in a normal distribution of data, 68% of the data fall within one standard deviations of the mean.

Learn more about the normally distributed data here;

https://brainly.com/question/6587992

#SPJ2

Please I need help it’s an emergency

Answers

Answer:

32[tex]\sqrt{2}[/tex]

Step-by-step explanation: Feel free to ask questions wanted to answer quick so you wouldn't end up being too late!

At what point do the graphs of the lines y=9x+2 and y=-3+12 intersect?

Answers

Answer:

(0.8333, 9.5)

Step-by-step explanation:

set them equal

9x+2=-3x+12

12x=10

x=0.8333

plug x into the equation

9(0.8333)+2 = 9.5

-3(0.8333)+12 = 9.5

Answer:

(5/3,17)

Step-by-step explanation:

If your second equation is y=-3x+12 your answer will be (5/3,17)

PLS HELP IM MARKINF BRAINLIEST FOR THE ANSWER

Answers

This is the answer:

Mass of earth: 5.97200e21 or 5.97200000000000000000000000

Mass of planes: 210000

Now, we have to divide the mass of the earth into the amount of planes.

For example,  Earth/Planes.

And the answer is: 2.84380952e5. Or 2.8438095200000. I hope this helps!

Can someone please tell me if this is right or what the right answer is pleaseeeeee

Answers

D.

Step-by-step explanation:

You've got it right, the entire graph goes 3 units down, and shifted 1 to the left by p(x+1).

Find the value of x.
А.
6
B
5
y
x = V[?]

Answers

Answer:

I thought this was going to be easy been sitting here for 20min

Use the net to find the surface area of the cylinder. 6ft and 7ft

Answers

Answer:

A. 84 pi feet^2

Step-by-step explanation:

So the lateral area is the rectangular piece on the net

In order for it to be an actual cylinder the 2 circles are congruent

Therefore the radi, area, circumference ect.. are the same.

So the only missing measurement we need to find the lateral area is the length of the rectangular piece

If you visualize a cylinder, the rectangular piece goes around the perimeter/circumference of the circle

So that means that the length of the rectangle is the circumference of the circle

Circumference = 2*pi*r

2 * pi * 6

= 12 pi

Then 7*12 pi

=84 pi

So the lateral area is 84 pi

:0

Jason inherited a piece of land from his great-uncle. Owners in the area claim that there is a 45% chance that the land has oil. Jason decides to test the land for oil. He buys a kit that claims to have an 80% accuracy rate of indicating oil in the soil. What is the probability that the land has oil and the test predicts it

Answers

Answer:

0.36 = 36% probability that the land has oil and the test predicts it

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)}[/tex]

In which

P(B|A) is the probability of event B happening, given that A happened.

[tex]P(A \cap B)[/tex] is the probability of both A and B happening.

P(A) is the probability of A happening.

45% chance that the land has oil.

This means that [tex]P(A) = 0.45[/tex]

He buys a kit that claims to have an 80% accuracy rate of indicating oil in the soil.

This means that [tex]P(B|A) = 0.8[/tex]

What is the probability that the land has oil and the test predicts it?

This is [tex]P(A \cap B)[/tex]. So

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)}[/tex]

[tex]P(B \cap A) = P(B|A)*P(A) = 0.8*0.45 = 0.36[/tex]

0.36 = 36% probability that the land has oil and the test predicts it

Answer:

The probability that the land has oil and the test predicts it is 36%

Step-by-step explanation:

So option  C.  0.36 is correct for plato users

Help I’ll give brainliest

Answers

Answer:

8

888888888888888888888888888

What the degrees measure for 5/9 of a circle

Answers

Answer:

200

Step-by-step explanation:

5*360/9=200

The diameter of a circle is 10 units. What is the radius of the circle? units​

Answers

Answer:

The answer is 5.

Step-by-step explanation:

Hope this helped Mark BRAINLEST!!!

Answer:

5

Step-by-step explanation:

Pls help due in 5 min

What is the total amount of the most common amount and the least common amount of milk drank daily?

Answers

Answer:

50/87

Step-by-step explanation:

At the zoo it is important to keep a good balance of male and
female animals. If 2 of the panda bears are female and there are
a total of 4 panda bears, what fraction of all the panda bears are
female?

Answers

Answer:

The answer is: 2/4

Step-by-step explanation:

There are a total of 4 panda bears, which makes 2 males and 2 females.

By making a fraction, you can say there are 2 panda bears, out of four.

A rectangular prism has a length of 7 cm, a width of 4 cm, and a height of 2 1/2cm.

The prism is filled with cubes that have edge lengths of 1/2 cm.



How many cubes are needed to fill the rectangular prism?

Enter your answer in the box.

To fill the rectangular prism,
cubes are needed.

Answers

Answer:

560 cubes

Step-by-step explanation:

Volume of prism: lwh, 7*4*2.5, 70cm!

Volume of cubes: lwh, 0.5*0.5*0.5, 0.125cm!

70cm/0.125cm=560 cubes.

Answer:

560 cubes

Step-by-step explanation:

first solve the volume of the rectangular prism

V = l x w x h

where l is the length

w is the width

h is the height

V = 7 x 4 x 2.5

v = 70 cu cm

then solve the volume of the box

v = e^3

v = 0.5^3

v = 0.125

number of cubes = 70 / 0.125

number of cubes = 560 cubes

There are 20 girls
and 12 boys in a class.
What would be the probability of
randomly selecting a girl? (Decimals please)

Answers

Answer: 240

Step-by-step explanation:

Suppose in a math class of 22 students, 14 are boys and 8 are girls. ... for a girl you have a 8 out of 22 students chance....for an A you have an additional ... 8/22+4/22 = 12/22 = 6/11. for a boy there is a 14 out of 22 chance of being a boy and an ... 14/22 + 6/22 = 20/22= 10/11 ... How to display latex properly

Please help I think it’s 4.0cm2 I’m i right?

Answers

Answer:

yes u are right give me brainlest plzzzzzzzzzzzzzzzzzzzzzzzzzz

Step-by-step explanation:

Please help!!!!!!!!!

Answers

Answer:

7.823 8.019

Step-by-step explanation:

Those two both will round up to 20 in the hundredths place and both round to 8.

What is the radius and diameter of the following circle? 18 cm
Radius = cm
Diameter = cm​

Answers

ANSWER:
Radius: ≈2.86
diameter: =5.72

EXPLANATION:

radius=d/2
diameter= 2r

i will give you brainliest whoever answers correct first!!

Answers

Answer:

x=16

Step-by-step explanation:

ok yeah lololol

PLEASE HELP THIS ASSIGNMENT IS OVER DUE

Answers

Answer:

25x-25y

Step-by-step explanation:

The distributive property tells us how to solve expressions in the form of a(b + c).

So, a*b and a*c would be the answer.

25*x and 25*y

Good luck on your assignment. :)

Answer:

=25x−25y

Step-by-step explanation

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