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3 years ago

Could someone please help me with this?

Mathematics

1 answer:

Leokris [45]3 years ago

5 0

No I will not help you out. You should figure that out yourself.

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Find the x-intercept and y-intercept of the line.

castortr0y [4]

The y intercept is when x = 0 so it is:-

8(0) + y = 8
0 + y = 8

y = 6 <------- y-interdept

x intercept is when y = 0 so:-
8x + 0 = 8

x = 1 <-------- x intercept

8 0

3 years ago

Read 2 more answers

Solve each system of equations <br> X^2+y^2+18x+29=0<br> X+y=1

tatyana61 [14]

Answer:

two solutions : (-3;4) and (-5;6)

Step-by-step explanation:

hello :

X²+y²+18x+29=0 ..(1)

X+y=1 ...(2)

by (2) : y = 1 - x

put this value in (1) : x² +(1-x)² +18x+29 = 0

x² +1 +x² -2x+18x +29 =0

2x²+16x +30 = 0

x²+8x+15 =0

delta = b²-4ac a=1 b=8 c = 15

delta = (8)²-4(1)(15)=64-60 =4 = 2²

X1=(-8+2)/2 = - 3

X2=(-8-2)/2 = - 5

case 1 : x = -3 y = 1 - (-3) = 4

case 2 : x = -5 y = 1 - (-5) = 6

8 0

3 years ago

What is y - 4 = -2 (x+7) written in standard form.

motikmotik

Answer:

Step-by-step explanation:

Refer to the picture.

Step 1: expand the bracket

Step 2: bring like terms together (e. G. Numbers, algebra like terms)

Step 3: simplify equation

Step 4: rearrange algebraic form to see which order fits the answer.

4 0

3 years ago

Read 2 more answers

8/1 ÷ 1/4 what's the result?

jonny [76]

The correct answer is 32

3 0

4 years ago

Read 2 more answers

The probability of drawing a heart from a standard deck of cards is 0.25. You record the car do you draw and return the car befo

Licemer1 [7]

Answer: C) 0.112

Step-by-step explanation:

In binomial distribution with parameters n (Total trails) and p (probability of getting success sin each trial) , the probability of getting success in x trials is given by :-

$P(X=x)=^nC_xp^x(1-p)^{n-x}$

Given : The probability of drawing a heart from a standard deck of cards is 0.25

Here , getting heart is the success.

Then p= 0.25

For n= 20

The probability that you will draw a heart seven times i.e. x= 7:

$P(X=7)=^{20}C_7(0.25)^7(1-0.25)^{20-7}$

$P(X=7)=\dfrac{20!}{7!(20-7)!}(0.25)^7(1-0.25)^{20-7}\ \ [\because\ ^nC_r=\dfrac{n!}{r!(n-r)!}]$

$=\dfrac{20\times19\times18\times17\times16\times15\times14\times13!}{7!13!}(0.25)^7(0.75)^{13}\\\\=77520(0.00006103515625)(0.0237572640181)\\\\=0.112406195476\approx0.112$

Hence, the probability that you will draw a heart seven times = 0.112

Thus , the correct answer is C) 0.112 .

8 0

3 years ago