Mathematics High School

Select the equation that is in standard form.


a

y=7x+2

b

y-7=x+8

c

2x+8y=3

d

y=x

Answers

Answer 1
Answer: c
Explanation: the standard form for linear equation in two variables is ax+ by= c

Related Questions

A ladder is placed 5ft away from a house. The ladder comes up to 12ft on the
side of the house. How long is the ladder?

Answers

Answer:

c = 13

Step-by-step explanation:

a² + b² = c²

5² + 12² = c²

25 + 144 = c²

169 = c²

√169= √c²

13 = c

what is equivalent to (x+8)(x+4)?
1.x^2+12x32
2.2x^2+10x+12
3.2x^2+12x+16
​

Answers

Answer:

1. x^2+12x+32

Step-by-step explanation:

(x+8)(x+4)

x(x+4)+8(x+4)

x^2+4x+8x+32

x^2+12x+32

Answer:

x^2+12x + 32

Step-by-step explanation:

Lets solve this piece by piece

x * x = x^2

x*4 = 4x

8 * x = 8x

8*4 = 32

now if we add all of these we get

x^2 + 12x + 32

which happens to be the first option

If the number of bacteria in a colony doubles every 33 hours and there is currently apopulation of 50,000 bacteria, what will the population be 66 hours from now?

Answers

Answer:

200,000

Step-by-step explanation:

Population now: 50,000

Population in 33 hours: 100,000

Population in 66 hours: 200,000

Answer: 200,000

REAL ANSWERS ONLY!!! 20 points!!

Answers

Answer:

126

Step-by-step explanation:

176 - 50 = 126

Give me Brainllest plz

Answer:

126

Step-by-step explanation:

Give the other answer ✨Brainliest✨

Propane has a heat energy of 2,470 BTU/ft cubed. How much energy can a propane tank with a volume of 43.7 ft cubed produce?

Answers

Answer: [tex]107939\ BTU[/tex]

Step-by-step explanation:

Given

Propane produced heat energy of [tex]2470\ BTU/ft^3[/tex]

The volume of the tank is [tex]43.7\ ft^3[/tex]

The energy produced by this propane tank is

[tex]\Rightarrow 2470\times 43.7=107939\ BTU[/tex]

A furniture store sells kits that customers use to build cabinets. Each kit contains 18 screws and a
set number of boards.
Part A
Jarred buys 6 of these kits and has a total of 192 screws and boards. The equation shown represents
this situation.
6(x + 18) = 192
What is the value of x in Jarred's equation?
A. 11
B. 14
C. 29
D. 35

Answers

Answer:

The answer is B, 14.

Step-by-step explanation:

Answer: 14

Step-by-step explanation: I took the test and got it correct :)

find the 8th term of the arithmetic sequence -5x+3, x+9, 7x+15,…

Answers

Step-by-step explanation:

Answer attached...

Hope it helps:)

find the equation of the line passing through points (-4,2) and (1,-6)

Answers

Answer:

y + 6 = (-8/5)(x - 1) in point-slope form

Step-by-step explanation:

Moving from the 1st point to the first, we see that x (the 'run') increases by 5 from -4 to 1, and y (the 'rise') decreases by 8.  Thus, the slope of the line through these two points is m = rise / run = -8/5

Now we have two points on the line, plus the slope.  Let's write out the point-slope formula for the equation of a straight line:

y - k = m(x - h), where (h, k) is a point on the line and m is the slope of the line.

Here, using the point (1, -6), we obtain:

y + 6 = (-8/5)(x - 1) in point-slope form

Which number below is greater than 9 but less than 10? A. √ 45 B. √ 80 C. √ 85 D. √ 100

Answers

Answer:

C: 85

Step-by-step explanation:

its about 9.2

What is the surface area?

8 ft
8 ft
8 ft

square feet

Answers

Answer:

surface area of cube=6×side²

surface area of cube=6×(8ft)²

surface area of cube=384ft²

NO LINKS!! SOMEONE PLS HELP ME :( NOBODY DOESNT WANT TO HELP ME I POSTED THIS SO MANY TIMES AND NO ANSWER PLSSS HELP ME The slope of the line below is 1. Write the point-slope equation for the line
using the coordinates of the labeled point. (7,8)

Answers

Answer:

Answer: y - 8 = x - 7

Step-by-step explanation:

SOLUTION:

General equation : (y2 - y1)/(x2 - x1) = slope

.

Substitute slope = 1 into the equation:

(y2 - y1)/(x2 - x1) = 1

.

Substitute (7, 8) into the equation:

(y - 8)/(x - 7) = 1

.

Cross multiply:

y - 8 = x - 7

.

Answer: y - 8 = x - 7

I really hope dis Helps :D

Jeremy has $3.50 to purchase erasers. If erasers cost $0.21 each, about how many can he buy?

Answers

Answer:

16 brainlist pls

Step-by-step explanation:

Find the number of possible outcomes in the sample space for the following scenario: A spinner can land on either red or blue. You spin seven times and then roll a six-sided die.


A. 423
B. 500
C. 692
D. 768

Which is correct?

Answers

I think is B but I’m not sure
The correct answer is letter B

25) Which of the following rational
numbers is different from the others?
a) -5 -1
b) - 1 - 4
c) -4 -7
d) 11' 2'93​

Answers

C) -4 -7
Hope it helps and have a nice day

Item 8
Find the area of the circle. Round your answer to the nearest hundredth.
mm2
first correct gets branly points

Answers

Answer:

452.39 mm^2

Step-by-step explanation:

Area of a circle = [tex]\pi[/tex] r^2

Here r = 12mm

Therefore, Area= [tex]\pi[/tex] x 12^2 = 452.389342...

Round to required degree of accuracy = 452.39mm^2

Hope this helps

The area of the circle is 452.39 mm².

What is the area of a circle ?

The formula for the area of a circle

 A = πr²

where r is the radius, half the diameter.

For the radius is 12 mm. Using that in the formula gives an area of ...

 A = π(12 mm)² = 144 π mm²

For an appropriate value of π, the area is

 144 π mm²

For 3.14 as the value of π, the area

 144 (3.14) mm² = 452.39 mm²

Learn more about the area;

https://brainly.com/question/1658516

#SPJ2

Find the measure of angle b.

Answers

Answer:

Uh it's 46 I think since it's the same size as the one on the opposite side of it sorry if I'm wrong cri

Step-by-step explanation:

$6,000 was invested at a simple interest rate. In 15 years, the
account was worth $9,600. What was the interest rate? Show all your
work!

Answers

Answer:

4.2%

Step-by-step explanation:

S.I=P×R×T R=I×100/R×T =6000×100/9600×15

=600000/144000

=4.2%

Four less than the product of 8 and a number is 6

Answers

Answer:

n= 5/4

Step-by-step explanation:

The equation is 8n-4=6. First you add four to six and cancel that out. You are left with 8n=10 divide and cancel and you are left with n=10/8 then sinplify into 5/4

Find the median:
5, 6, 3, 9, 0, 4, 1, 2, 7

a
4

b
5

c
4.1

d
4.3

Answers

Answer:

A

Step-by-step explanation:

The median of 5, 6, 3, 9, 0, 4, 1, 2, 7 is 4

How to determine the median?

We have:

5, 6, 3, 9, 0, 4, 1, 2, 7

Rearrange the dataset in ascending order

0, 1, 2, 3, 4, 5, 6, 7, 9

The median is the middle value, and the middle value in the above dataset is 4

Hence, the median of 5, 6, 3, 9, 0, 4, 1, 2, 7 is 4

Read more about median at:

https://brainly.com/question/14532771

#SPJ6

In a standard deck of cards, P(heart)

Answers

Answer:

13/52 (0.25) (25%)

Explanation:

There are 52 cards in a standard deck and there are four suits.

52/4 = 13

So, the probability (assuming that’s what you are asking for) is a 13/52 chance you will pull a hearts card.

Answer:

1/4

Step-by-step explanation:

probabillty of hearts. deck of cards is 52 there are 13 hearts so its 13/52 or 1/4

11. Patrick is buying a new car. He can choose the body style, color, and
engine type. If there are 54 ways he can select a car, with three body
styles and two engine choices, how many colors are available?

Answers

Answer:

There are 9 different options he can choose

Step-by-step explanation:

Using the question from above Jenny shape what is the volume of her two cubes combined

Answers

Answer:

14•14•14= 2744

7•7•7= 343

2744+343= 3087

Step-by-step explanation:

all together it should be 3087

sorry if I'm wrong.

How do you find the diameter

Answers

If you know the radius of the circle, double it to get the diameter. The radius is the distance from the center of the circle to its edge. If the radius of the circle is 4 cm, then the diameter of the circle is 4 cm x 2, or 8 cm. If you know the circumference of the circle, divide it by π to get the diameter.

Answer:

2x radius I believe

Tell me if im wrong and I will remove this

How long is a string reaching from the top of a 13-ft pole to a point on the 3 points ground that is 7 ft from the base of the pole?

Answers

Answer:

14.76 ft

Step-by-step explanation:

L²= 13² + 7²

L² = 169 + 49 = 218

L = √218 = 14.76 ft

Answer:

14.8

Step-by-step explanation:

We use the Pythagoras theorem because the string and the pole are making a right angle triangle

7^2+13^2=c^2

49+169=c^2

218=c^2

14.8=c

In a race , Ram covers 5 km in 20 min. How much distance will he cover in 100 min

Answers

Answer:

25 km

Step-by-step explanation:

100/20=5

5*5=25

You can use proportion
Km Min
5 20
? 100

(5*100)/20
500/20
=25

Beverly makes wooden boxes for a crafts fair. She makes 400 boxes like the one shown, and she wants to paint all the outside faces.

Answers

Answer:

2400

Step-by-step explanation:

a box has six sides

400*6

What is the equation of the ine perpendicular to 6x−2y=3 and passing through the point (5,−1)?

Answers

6x-2y=4xy

so this is the,correct answer your thinking of division

i need help
Find the volume of the cylinder.
Either enter an exact answer in terms of
π
πpi or use
3.14
3.143, point, 14 for
π
πpi.

Answers

Answer:

Solution :-

Radius is 3

Height is 2

So,

Volume = πr²h

Volume = 3.14 × (3)² × 2

Volume = 3.14 × 9 × 2

Volume = 3.14 × 18

Volume = 56.5 units²

Answer: 56.52

Step-by-step explanation:

You can get a volume of a cylinder by multiplying pie which is 3.14 by radius squared multiplied the height...

The equation is Volume = πr²h

Or in simpler terms:

3.14 × radius ×radius × height

So the final equation is:

3.14 × 3² × 2

=56.52

What does side DE equal?

first person gets brainliestly answer!

Answers

Side DE would equal 20

Answer:

Length of line DE = 20

Step-by-step explanation:

The scale factor from ΔABC to ΔDEF is 2.

Line AB is similar to line DE.

So, we need to multiply the length of line AB by 2 to get the length of line DE:

10 × 2 = 20

***MARKED BRAINLIEST***​

Answers

Answer:

D is the answer

Step-by-step explanation:

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