Mathematics College

бр — 3 2 — 4р – 7

Please help me solve this for math test

Answers

Answer 1

Answer:

yeaa

Step-by-step explanation:

Related Questions

HELP ME NOW BDJSJAHJAHA

Answers

Answer:

D

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

30 points! I will mark brainliest! agenthammerx please help

Answers

1. m<C = 48°.

2. <X = <Y.

Explanation :

<ABD = <CDB = 62°

<BDA = <DBC = 70°

<DBC + <BCD + <CDB = 180°

70° + <BCD + 62° = 180°

132° + <BCD = 180°

<BCD = 180° - 132°

<BCD = 48°

m<C = 48°

The triangle is a right triangle. If ZX = ZY then <X = <Y

Plz guys help I need help

Answers

Answer:

C

Step-by-step explanation:

The y values go up by four each time, so 25 is the correct response

Lamar received 7/8 of the 160 votes cast for class president. How many votes did he receive?

Answers

Answer:

140 votes

Step-by-step explanation:

Answer:

140

Step-by-step explanation:

7/8=87.5% x 160= 140

help please and thank you ​

Answers

Answer:

[tex]-\sqrt{1}[/tex] = rational

[tex]16\pi[/tex] = irrational

[tex]-37.777[/tex] = rational

[tex]\sqrt{7\\}[/tex] = irrational

[tex]\frac{7}{8}[/tex] = rational

hope this helps, good luck :)

help fast again sorry​

Answers

Answer:

75%

Step-by-step explanation:

Answer:

75%

Step-by-step explanation:

help i do t understand ​

Answers

Answer:

14.9, 15.2, 15.4, 15.9, 15.9, 17.4, 18.3, 18.4, 18.6, 18.6

Step-by-step explanation:

Stem is the number on the left side separated, leaf is the each of the numbers on the right side of the line, each of numbers indicating the tenth digit

Here is the list

14 | 9 ⇒ 14.915 | 2499 ⇒ 15.2, 15.4, 15.9, 15.916 | ⇒  none17 | 4 ⇒ 17.418 | 3466 ⇒ 18.3, 18.4, 18.6, 18.6

What's the circumference of a
circle with a radius of 10 inches?
Use 3.14 for n.
C = [?] inches

Answers

Answer:

62.83 inches

Step-by-step explanation:

This video is better than any explanation i can give to help remember how to find the circumference of a circle: https://youtu.be/9WGO7dAxjD8

what is the answer to this image

Answers

Answer:

A

Step-by-step explanation:

You are wayyyy to young to be on this site. I mean... 5TH GRADE!!!!

What's the circumference of a
circle with a radius of 2 inches?
Use 3.14 for it.
C = [?] inches

Answers

Step-by-step explanation:

radius (r) = 2 inches

circumference (c) = ?

we know

C = 2 πr

= 2 * 3.14 * 2

= 12.56 inches

Hope it will help :)

One number was divided by 15, followed by this quotient being multiplied by 2. Next, the product was added to 9. The total sum was 7, so what was the first divisor?

Answers

i believe it is 15.

-15/15=-1
-1x2= -2
-2+9= 7

Solve the inequality 3x-9<12

Answers

Answer:

x < 7

Step-by-step explanation:

3x - 9 < 12     add 9 for both sides.

3x < 21      divide both sides by 3.

x < 7.

UNANSWERED PLZ HELP
#2 Is this triangle congruent? If so, list the congruent parts and justify your answer. Then state the criteria.

Answers

Answer:

YES

Criteria: SAS criterion

∆EFJ ≅ ∆HFG

Step-by-step explanation:

Side EF in ∆EFJ ≅ side HF in ∆HFG (corresponding sides)

Side FJ in ∆EFJ ≅ side FG in ∆HFG (corresponding sides)

Also,

<F in ∆EFJ ≅ <F in ∆HFG (vertical angles are congruent)

Thus, two sides and one included angle of ∆EFJ are congruent to two corresponding sides and an included angle of ∆HFG.

Therefore, by the SAS Congruence Theorem, ∆EFJ ≅ ∆HFG.

Consider the sequence 4,-12,36,-108... What is the explicit formula that could be used to solve any term in the sequence

Answers

Well the difference between each number is multiplied by -3. So you could do y= -3x + 4. X would start at 0 so x= 0 which plugged in would be 4 which is the first answer. For the second number x=1 when plugged in you get y as -12 which is the second number and so on.

Which polynomial is the product of (4x – 3) (3x² + 5x – 7)?

Answers

=-36x+420

The 36x by the power of 2

The distance from Palo Alto, CA and Columbus, OH is 2,470 miles. Due to the winds it takes 4 hours and 20 minutes to fly to Ohio, but 5 hours on the return trip (which is the same distance). Find the ground speed of the plane assuming that plane ground speed and wind speed remain constant.

Answers

Answer: 494 mph

Step-by-step explanation:

S=d/t

can someone answer 1 through 6​

Answers

Answer:

1) permutation

2) combination

3) combination

4) combination

5) permutation

Step-by-step explanation:

Pilar bought a purse on sale for $18, which is one-half of the original price. What was the original price of the purse?

Answers

Answer:

36

Step-by-step explanation:

18 plus 18 is 36

i added those numbers together because two halves equal a whole

Answer:

$36

Step-by-step explanation:

x * 1/2 = 18

solve for x:

1/2x = 18 is the same

18/ 1/2

Find the vertex of the function given below.
y= 2x2 + 4x + 1

Answers

Answer:

vertex is (-1,-1)

Step-by-step explanation:

2 ways

1. get into vertex form y=a(x-h)^2+k

2. use math hacks

1.

vertex is (h,k) in y=a(x-h)^2+k

complete square

y=(2x^2+4x)+1

y=2(x^2+2x)+1

y=2(x^2+2x+1-1)+1

y=2((x+1)^2-1)+1

y=2(x+1)^2-2+1

y=2(x+1)^2-1

y=2(x-(-1))^2+(-1)

vertex is (-1,-1)

2.hack way

in form y=ax^2+bx+c

x value of vvertex is -b/2a

given

y=2x^2+4x+1

b=4, a=2

xvaluevertex=-4/(2*2)

xvaluevertex=-4/4=-1

sub back to find y value

y=2(-1)^2+4(-1)+1

y=2(1)-4+1

y=2-4+1

y=-1

y value is -1

Answer:

(-1,-1)

Step-by-step explanation:

To find the x coordinate, we use the formular x = -b/2a where b=4 and a = 2 from the given function.

hence x = -(4)/2(2) = -1

then to get the y coordinate we substitute the value of x into the given function, so y = 2(-1)^2+4(-1)+1 = -1

therefore, the vertex is (-1,-1)

Find the circumference of the
circle. Use 3.14 for it. Do not
round your answer.
C = [? ] feet
18 feet
Enter the number that

Answers

Answer:

either 56.52 or 113.04

Step-by-step explanation:

if 18 is the diameter: C= 56.52 feet

if 18 is the radius: C= 113.04

7x + 2y=-12
Y=-3x-4

Answers

Answer:

x=-4

Step-by-step explanation:

X would be -4 because if you distribute 2 to (-3x-4) it would give you (-6x-8) and then collecting like terms you would get (x-8=-12)  then you would add 8 to -12 whih would equal -4.

The length of the table is 118 as long as its width.
Find the ratio of the length of the table to its width.

Answers

1

Step-by-step explanation:

ratio of length to width equal length per width

I need to know this quick! 10 points is Max sorry

Answers

Answer:

A

Step-by-step explanation:

[tex]\frac{5}{6}\cdot \frac{1}{2}=\frac{5}{12}[/tex]

Multiply top and bottom, on the top we get 5*1 which is 5 and on the bottom we get 6*2 which is 12.

Write an expression that is equivalent to 3/5 (3y + 15).

Answers

9 over five y+9

<33333

the probability that is from the 60s is​

Answers

Huhh?? Explain better ols

When a polling company calls a telephone number at random, there is only a 9% chance that the call reaches a live person and the survey is successfully completed. Suppose the random digit dialing machine makes 15 calls. Let X = the number of calls that result in a completed survey.

(a) Calculate and interpret the mean of X.

(b) Calculate and interpret the standard deviation of X​

Answers

Answer:

(Part A) I know the mean of x will be 1.35

Step-by-step explanation:

Just do 9 percent of 15, I nessecarly dont know how to do that math but I looked it up and gave me 1.35. and you got the mean. here is the homework my teacher gave me : I hope this helps

What is the equation of a line with slope
12 / 2 and a y-intercept of -4 ?

Answers

Answer: y= 6x-4

Step-by-step explanation:

I wrote it in y=mx+b format. m is the slope and b is the y-intercept.

The slope is 6 because 12/2=6

F(x)=(x-7)^2-64
Please help

Answers

Answer:

x-intercepts/ roots= (-1,0), (15,0)

f(0)= -15 (y-intercept)

Axis of symmetry: x = 7

Vertex: (7, -64)

Domain: All real numbers

Range: [-64, infty)

What is the slope of a line that is parallel to the line y = 3x + 2?
4
3
-
3
4
له ده

Answers

Answer:

3

Step-by-step explanation:

Parallel lines have same slope

The line parallel to y = 3x + 2 has a slope of 3

Can someone help me with this question?

Answers

Answer:

x=16

Step-by-step explanation:

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