Mathematics High School

Math!! Pls help

Which expression is equivalent to x^2 - 4x -45

Answers

Answer 1

Answer:

Step-by-step explanation:

x^2-4x-45

(x-9)(x+5)

What two numbers when multiplied make the -45 and when added make the -4? -9 and +5

Related Questions

Given the relation R = {(-2, 3), (a, 4), (1,9), (0,7)}.
Which replacement for a makes this relation a function
O4
0-2
00

Answers

Answer:

The answer would be 4

Step-by-step explanation:

you can’t have repeating numbers in a function.

With this diagram, what could be the values of q and r ?

=147
q
=
14
7
, =−2.05
r
=
-
2.05

=0
q
=
0
, =−204
r
=
-
20
4

=3
q
=
3
, =−65
r
=
-
6
5

=−23
q
=
-
2
3
, =8

Answers

Answer:

the third one i belive so

Step-by-step explanation:

it makes more scence

Anyone know this? Ill give brainliest if right pls help ^^ :)

Answers

Answer:

Step-by-step explanation:

Since you're only looking at salt and you want 4 times as much all you need to do is multiply 1/2 with 4 and the result is 2.

Answer:

2 Teaspoons

___________________________________________

So, we know that the original amount for salt is 1/2.

So, we do 1/2 x 4

1/2 x 4 = 2

So, the answer is 2

HOPE THIS HELPS!!!

ok here we go plz help me

Answers

Answer:

I don't have much time cause Zoom is gonna start but the answer to 8 is B

Step-by-step explanation:

The answer is B because since it's a triangle it will always add up to 180.

Triangles= 180 always

Stella buys a one-pint bottle of juice for $2.72. What is the unit rate of the
cost of the juice per fluid ounce?

Answers

Answer:

Step-by-step explanation:

8 fluid ounces in a cup

two cups in a pint

16 fluid ounces in a pint

divide 2.72/16 to get your answer of $.17 a fluid ounce

Find the slope. Pls help ill give brainliest ^^

Answers

-3/2 is the answer I think because you count down 6 and it’s a negative slope

A die is rolled 200 times with the following results.

Outcome

1

2

3

4

5

6

Frequency

32

36

44

20

30

38

What is the experimental probability of rolling the given result?

a prime number

a.

0.45

c.

0.71

b.

0.55

d.

0.73

Please select the best answer from the choices provided

A

B

C

D

Answers

Answer:

Step-by-step explanation:

2 3 and 5 are all prime.

Chance of rolling 2 = 36/200 = 0.18

Chance of rolling 3 = 44/200 = 0.22

Chance of rolling 5 = 30/200 = 0.15

Total = 0.55

Answer:

I think it's B.

Can someone please help me!!

Answers

X=14 in
Y=71 degrees
Z=18 in

Question 6
Distance = 72 km, Time = 2 hours,
speed = ? km/h

please help me:)

Answers

Answer:

36 kilometers per hour

Step-by-step explanation:

you divide 72 by two, as easy as that

What is the area of this polygon on a coordinate plane?
20 square units
9 square units
3 square units
14 square units

Answers

Answer:

Step-by-step explanation:

count the amount of squares inside the shape.

The area of this polygon is 14 units on a coordinate plane.

What is area of rectangle?

Area of rectangle is defined as product of the length and width.

Length of large rectangle = 5 units

width of large rectangle = 4 units

Length of small rectangle = 3 units

width of small rectangle = 1 unit

Required area of polygon = large rectangle - 2 × small rectangles

Required area of polygon = 5×4 - 2×(3×1)

Required area of polygon = 20-6

Required area of polygon = 14 units

Hnece, the area of this polygon is 14 units on a coordinate plane.

Learn more about Area of rectangle

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The function f(x) contains the point (-2,4), which point is contained in f -1(x)? A. (-4,2) B. (-2,-4) C. (4,-2) D. (2,-4)

Answers

9514 1404 393

Answer:

(4, -2)

Step-by-step explanation:

If (x, y) is part of the relation f, then (y, x) will be in the inverse relation f^-1.

The point contained in f^-1(x) is (4, -2).

_____

Additional comment

The range of f is {2, -4, -2, -4}, which has -4 repeated. That means the inverse relation is not a function. We can say that (4, -2) is a point contained in the inverse relation, but we cannot say that f^-1(x) is a function.

Orange juice costs $2 per gallon, and grapefruit juice costs $3 per gallon. A recent shipment of equal amounts of the two types of juice costs a total of $250. How many gallons of orange juice are in the shipment

Answers

There are 50 gallons of each juice.
$2(orange juice)x 50= 100
$3(grapefruit juice)x 50= 150
100+150=$250

If Jim works at Fire Fighting Equipment, has $32,874 in sales in one week, and as paid a weekly salary of $452 plus a commission of .9% on sales between $15,000 and $25,000, with 1.1% paid on sales in excess of $25,000, no commission is paid on the first $15,000, what is his gross earning?

Answers

Answer:

Gross income= $813.61

Step-by-step explanation:

Giving the following information:

Sales= $32,874

Fixed salary= $452

Commission= 1.1% paid on sales in excess of $25,000.

To calculate the gross income, we need to use the following formula:

Gross income= 452 + y*x

y= percentage comission

x= sales

For $32,874 sales:

Gross income= 452 + 0.011*32,874

Gross income= $813.61

Jo estimated the quotient of –41.71 divided by –6.03 by rounding each to the nearest integer. What is Jo’s error?

Answers

Complete Question

Jo estimated the quotient of –41.71 divided by –6.03 by rounding each to the nearest integer. What is Jo’s error? a) Negative 42 divided by negative 7 = 6

b) Jo should have rounded the dividend to –40

c) Jo should have rounded the divisor to –6.

d) Jo should have divided –7 by –42. e) Jo should have divided –7 by –7

Answer:

c) Jo should have rounded the divisor to –6.

Step-by-step explanation:

Jo estimated the quotient of –41.71 divided by –6.03 by rounding each to the nearest integer.

Nearest integer

Dividend = -41.71 = -42

Divisor = -6.03 = -6

Jo's error was that she should have rounded the divisor to -6

Hence: -42 ÷ -6 = 7

Quotient = 7

B :)

the other guy did good explaining but he said C instead of B

Someone please help!
g(n)= n^2 + 5 f(n)= 3n+5
Find g(n)/f(n)

Answers

Answer:

n^2+5/3n+5

Step-by-step explanation:

does N equal something?

The snooker hall has given you a $40 prize for your 147 break. You decide to share it with your friend in the ratio 3:1. How much will you give your friend?

A) $10
B) $11
C) $9
If anyone does this u will get 70 points so please help me

Answers

Answer:

it would be A

explanation: if you get $40 dollars and divide it by 4 (which would be equal to giving to 4 people) and then take 3 fourths of it your friend would be left with $10

Answer:

A - 10

Step-by-step explanation:

Look at the graph.

On a coordinate plane, a graph increases through (negative 1, 4), levels off at (0, negative 3), and then increases up through (2, 5).

Leslie analyzed the graph to determine if the function it represents is linear or non-linear. First she found three points on the graph to be (–1, –4), (0, -3), and (2, 5). Next, she determined the rate of change between the points (–1, –4) and (0, -3) to be StartFraction negative 3 minus (negative 4) Over 0 minus (negative 1) EndFraction = StartFraction 1 Over 1 EndFraction = 1. and the rate of change between the points (0, -3) and (2, 5) to be StartFraction 5 minus (negative 3) Over 2 minus 0 EndFraction = StartFraction 8 Over 2 EndFraction = 4. Finally, she concluded that since the rate of change is not constant, the function must be linear. Why is Leslie wrong?

Answers

Answer:

Its D

Step-by-step explanation:

Leslie is wrong because her conclusion is wrong. If the rate of change is not constant, then the function cannot be linear.

The correct option is D.

What is a Linear Function?

A function is said to be linear when the rate rate of change is constant for all the points on the graph.

The points of the graph are (–1, –4), (0, -3), and (2, 5).

The rate of change from (–1, –4) to (0, -3) is

(-3 -(-4)) / (0-(-1)) = 1

The rate of change from (0,-3) to (2,5) is

(5+3)/(2-0) = 4

The rate of change is not constant and so the function cannot be linear.

Leslie is wrong because her conclusion is wrong. If the rate of change is not constant, then the function cannot be linear.

The correct option is D.

The missing options are attached with the answer.

To know more about Linear Function

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What is the slope of this line

Answers

Answer:

the slope is 1.

Step-by-step explanation: This answer is correct, because the rise over run was 2/2 which equals 1.

PLS HELP

3. There are 35 bees in the hive when it is first observed on Saturday. After 3 days, there are 42 bees. It is determined that the population of bees increases exponentially.
How many bees are will there be after 30 days? Express your answer as an exact value and rounded to the nearest whole number

Answers

Answer:

210

Step-by-step explanation:

it increases by 7 so 7 times 30 days will be 210

Which of the following best describes the slope of the line below?
O A. Positive
OB. Negative
O C. Undefined
O D. Zero

Answer is - zero

Answers

Answer is- D- (Zero)

735+427+527+4777-526+526 times 7 plz it’s due at 1:00

Answers

Answer:

45262

Step-by-step explanation:

Answer: 45,262

Step-by-step explanation:

YALL MY STOMACH IS MAKING SOME WEIRD NOISES IM DYING SOMEONE SAVE ME

Answers

Answer: either eat something or go to the bathroom or you may be an alien

Help me, solve for x

Answers

Answer:

x=1°

Step-by-step explanation:

62x+118 =180(corresponding angles)

62x = 62

x = 1°

Answer:

x = 1

Step-by-step explanation:

∡D and ∡E are sumplemmentary angles,

then:

D + E = 180°

then:

62x + 118 = 180

62x = 180 - 118

62x = 62

x = 62/62

x = 1

Plz help I’m you guessed it desperate

Answers

Answer:

Step-by-step explanation:

It is parallel? This is what I would put

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

Answers

Answer:

the y's represent the y cordinate on a graph or y value in a table

Step-by-step explanation:

The y represents the y axis and coordinate on the graph or the y value in a table

At the kennel, there are 6 dogs for every 5 cats. a. The ratio of dogs to cats is to . b. The ratio of cats to dogs is to . c. For every dogs there are cats. d. The ratio of cats to dogs is : .

Answers

Answer:

a. The ratio of dogs to cats is

= 6:5

b. The ratio of cats to dogs is

= 5:6

c. For every dogs there are cats.

For every 6 dogs, there are 5 cats and for every 5 cats there are 6 dogs

Step-by-step explanation:

At the kennel, there are 6 dogs for every 5 cats.

The questions below have to deal with proportion

Hence:

Number of dogs = 6

Number rod cats = 5

a. The ratio of dogs to cats is

Dogs : cats

6:5

b. The ratio of cats to dogs is to

Cats: Dogs

5:6

c. For every dogs there are cats.

For every 6 dogs, there are 5 cats and for every 5 cats there are 6 dogs

your answer should be c i think

The info is in the picture!

Answers

Answer:

No.

Step-by-step explanation:

The inverse of g(x) is -2x/3+8/3 which does not match with f(x)

Round 9,675,599 to the nearest 1,000.

Answers

Answer: 9,676,000

Step-by-step explanation:

Increase the digit by 1 if the previous digit is 5 or above

Answer: 9676000

Step-by-step explanation: you have to go the thousands place and round up because anything 5 or below round up

what is -4(3t-9)>8(8-t)

Answers

Answer:

Inequality Form:

t < −7

Interval Notation:

(−∞,−7)

Answer:

t < -7

t ∈ ( -∞, -7 )

Step-by-step explanation:

-4 ( 3t - 9 ) > 8 ( 8 - t )

1. Distribute

-4 ( 3t - 9 ) > 8 ( 8 - t )

-12t + 36 > 64 - 8t

2. Inverse operations ans simplifying

-12 t + 36 > 64 - 8t

+12t + 12t

36 > 64 + 4t

-64 -64

-28 > 4t

/4 /4

-7 > t

What is the solution to y + 8.5 = 17.2?
y = 25.7
y = -25.7
y = -8.7
y = 8.7

Answers

Answer:

Y = 8.7

Step-by-step explanation:

Hope this helps. Pls give brainliest.

The answer have to be Y=8.7

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Math!! Pls help Which expression is equivalent to x^2 - 4x -45

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Math!! Pls help

Which expression is equivalent to x^2 - 4x -45