Mathematics College

IF x=-4 and y=6 then xy-3x=

Answers

Answer 1

Answer:

-12

Step-by-step explanation:

The answer is -12 because -4x6=-24, and then you add 12 to the result. -24+12=-12, so there's your answer.

Related Questions

18. Simplify the following expression: 35+ (-13) + (+8) -(-6).
O A.50
O B. 24
O C.44
O D.36

Answers

The answer is D.36! I hope it helps

Answer:

36 D.

Step-by-step explanation:

+ - = -

+ + = +

- - = +

35 - 13 + 8 + 6

22 + 8 + 6

30 + 6

36

Your goal is to save $50. So far, you have saved $34. How much more money do you need to save? Write your answer as a rational number.

Answers

Answer:

You need to save $16 more dollars.

Step-by-step explanation:

If you add 16 to 34 you get 50.

Elevator 1 in a building moved from ground position to a final position of +16 feet. Elevator 2 in the same building moved from ground to a final position of –25 feet. Which statement best describes the final positions of these two elevators? (1 point) Elevator 1 is 16 feet below ground level, and elevator 2 is 25 feet above ground level. Elevator 1 is 16 feet above ground level, and elevator 2 is 25 feet below ground level. Elevator 1 is 16 feet above ground level, and Elevator 2 is 25 feet below the position of Elevator 1. Elevator 1 is 16 feet below ground level, and Elevator 2 is 25 feet above the position of Elevator 1.

Answers

Answer B

Step-by-step explanation:

Answer:

it is B

Step-by-step explanation:

i already took the test please like it and give 5 stars Thank you

Which postulate or theorem proves that these two triangles are
congruent?
HL Congruence Theorem
SAS Congruence Postulate
ASA Congruence Postulate
AAS Congruence Theorem

Answers

Answer:

ASA

Step-by-step explanation:

Took the test.

It costs $3.45 to buy3/4 lb of chopped walnuts. How much would it cost to purchase 7.5 lbs of walnuts? Explain or show your reasoning. l​

Answers

Answer:

$34.5

Step-by-step explanation:

because 3/4 of a pound is basically .75 of a pound. so the conversion from .75 of a pound to 7.5 pounds is just multiplying by 10. therefor you just multiply the initial price by 10

Answer:

$34.50

Step-by-step explanation:

please give me brainliest

Ernie worked at his job on Saturday and Sunday last weekend, earning $14 per hour. His
sister, Perla, also worked on the weekend and earned a total of $126.
If Ernie and Perla earned the same amount of money at their jobs last weekend, how many
hours did Ernie work?

Answers

Answer:

9 hours

Step-by-step explanation:

126 divided by 14 = 9

You can check your answer by 9 times 14 which would give you 126.

A 33 pound bag of grass seed holds 2 pounds less than 5 smaller bags of seed. Find the weight of the smaller bag of seed.

Answers

Answer:

7 pounds

Step-by-step explanation:

33+2=35....35/5=7

Answer:

The answer is 7.

Step-by-step explanation:

33 + 2 = 35

35 ÷ 5 = 7

1. A pitched roof is built with a 1:3 ratio of rise to span. If the rise of the roof is 10 meters, what is the span

Answers

Answer:

The answer is B) the span of the roof is 4

Step-by-step explanation:

The span is 30 meters if the pitched roof is built with a 1:3 ratio of rise to span.

What is the ratio?

It is described as the comparison of two quantities to determine how many times one obtains the other. The proportion can be expressed as a fraction or as a sign: between two integers.

We have:

A pitched roof is built with a 1:3 ratio of rise to span

rise/span = 1/3

rise = 10 meters

10/span = 1/3

span = 3×10 = 30 meters

Thus, the span is 30 meters if the pitched roof is built with a 1:3 ratio of rise to span.

Learn more about the ratio here:

brainly.com/question/13419413

#SPJ2

What expression equals to 3^15

Answers

Answer:

14348907

Step-by-step explanation:

That's the right answer

5 times 3 = 15 or 13+ 2 hope this helped

what is the slope of the line that contains these points? please help

Answers

Answer:

Plug in to find out

Step-by-step explanation:

Pick 2 complementary sets of coordinates

For this Q i am picking (36,8) & (31,10)

[tex]m=\frac{y2-y1}{x2-x1}[/tex]   <-- this is the slope formula

Plug in the values and divide.

Answer:

Step-by-step explanation:

(8-10)/(36-31)= -2/5 is the slope

Round off the following numbers to 2 significant figures.
156

Answers

Answer:

your answer would be 160

find the missing
number
+ 16 = 28​

Answers

+16=28 is equal to 12
it’s the same as subtracting 28 from 16 so 28-16 is 12 and that’s your answer!

2) -9u-17 = -5u -7

Yallll help meeeI’ve been stuck

Answers

Answer:

u = -4.8 :)

Step-by-step explanation:

-9u-17=-5u-7

-5u=24

24/-5=-4.8

841/4 how much is it

Answers

Answer:

210.25

Step-by-step explanation:

841/4=210.25

Question
Example
Step by Step
Jennifer is saving money to buy a bike. The bike costs
$213. She has $123 saved, and each week she adds $18
to her savings.
How long will it take her to save enough money to buy
the bike?
It will take her
weeks _____to save for the bike.

Answers

Answer:

5

Step-by-step explanation:

18x5=90+123=213.

Sarah traveled 145 miles in
2.5 hours. How fast was
Sarah driving?
Ma

Answers

Answer:

58 mph

Step-by-step explanation:

145/2.5=1450/25=58

Solve: -19x- 1 = -12x + 34

Answers

19−1=−12+34

19x-1=-12x+34

19x−1=−12x+34

19−1+1=−12+34+1

Which are removable discontinuities?
x = -2
x = -2 and x = 0
x = 0 and x = 4
x = -2, x = 0, and x = 4

Answers

Answer:

C

Step-by-step explanation:

Got it right on eng

Answer:C

Step-by-step explanation:

In each case below, we describe a study to determine whether exercise helps increase certain mood enhancing chemicals in the brain. Indicate whether each describes an experiment or an observational study.
a). Using a random sample of 100 people, we randomly assign half of them to participate in a regular exercise program for a six-week period while the other half makes no changes. At the end of the time period, we measure the brain chemicals.
b). We contact a random sample of 100 people and record how much each person exercises and also measure the chemicals in the brain for each person.

Answers

Answer:

A)Experimental Study

B)Observational Study

Step-by-step explanation:

Observational Study : A study where researchers simply collect data based on what is seen and heard and infer based on the data collected.

Experimental Study: A study which involve the random assignment of -participants into different groups in order to determine the causal effect of a certain condition on a certain outcome .

A) In this case we are randomly classifying the subjects into two groups, where one group participate in a regular exercise program for a six week period, while the other half makes no changes. In this Part we are not observing the data . we are doing experiment over here and comparing those two different groups.

So, By definition It is an experimental study

B) In this case we are recording the data of each person and decision will be based on data

So, By definition It is an observational study

2.5 puzzle time Which month has 28 days

Answers

Answer:

February has 28 days on every year except a leap year, but all months have at least 28 days.

Step-by-step explanation:

Answer:

February is the answer

Step-by-step explanation: hope this helps.

Evaluate using the order of operations. Enter the answer in simplest form.
3/5+1/7÷3

Answers

Answer:

0.64761904761

Step-by-step explanation:

3/5+1/7 x 1/3 = 3/5+1/21
Your answer is 68/105

The daily high temperatures in a vacation resorts in approximately normal, with a mean temperature of 75 Fahrenheit and a standard deviation of 6 degrees. What percentage of days have a high temperature between 66 and 88?
A.17.01%
B.35.62%
C.64.37%
D.72.99%

Answers

Should be B I think

How do we shift the graph of y=f(x) to get the graph of y = f(x) +5?
A Move the graph down by 5 units.
B Move the graph up by 5 units.

Answers

Answer:

B, Up 5 units

Step-by-step explanation:

because of the +

The variable y is directly proportional to the variable x. If y = 32 when x = 20, what is the value of x when y = 40?

Answers

Answer

25

Step-by-step explanation:

20/32 = 0.625

40 x 0.625 = 25

You can check by doing 25/40 and see if you get the same proportion (x/y)

25 is the correct answer 32/20 is 1.6 and 40/25 is also 1.6

Whats the mean of 62,78,59and 89

Answers

[tex] \huge \tt \underline \orange {Question}[/tex]Mean of 62,78,59,89?

[tex]\huge {\mathcal{\purple{A}\green{N}\pink{S}\blue{W}\purple{E}\green{R}\pink{!}}}[/tex]

As we know that ,

⠀⠀⠀⠀Mean= sum of all numbers/ total number of numbers

[tex] \longrightarrow [/tex] Mean= 62+78+59+89/4

[tex] \implies [/tex] Mean = 288/4

[tex] \implies [/tex] Mean= 72

[tex]\huge\boxed{\fcolorbox{purple}{yellow}{Answer\:= \:72}}[/tex]

Answer:

72

Step-by-step explanation:

62 + 78 + 59 + 89 = 288

then count how many data you have

288 / 4  = 72

(x² + 4x – 22) + (x + 6)

Answers

Answer:

12

Step-by-step explanation:

The photo is the answer

if f(x) = 6(x - 2)3 + 5, what is the y- intercept?​

Answers

Answer:

y= (0, -31)

Step-by-step explanation:

Hope this helps

What’s the rule it’s algebra 1

Answers

Answer:

An algebraic rule is a mathematical expression that relates two variables and is written in the form of an equation. There are many constant algebraic rules, such as area = length x width. You can also create your own rule when given a set of variables

Step-by-step explanation:

2(x + 7) + 3x = 12 (given)
2x + 14 + 3x - 12 (?)
5x + 14 - 12 (simplify)
5x = -2 (subtraction)
x = -2/5(division)
What is the missing reason?
A)
Addition
B)
Subtraction
c)
Reflexive Property
D)
Distributive Property

Answers

It’s distributive because you multiplied the 2 to the x and the 7.

What is the inverse of the function f(x) = 1/4x – 12?

h(x) = 48x – 4
h(x) = 48x + 4
h(x) = 4x – 48
h(x) = 4x + 48

Answers

Answer:

h(x)=4x+48

Step-by-step explanation:

f(x) = 1/4x – 12

x=1/4y-12

x+12=1/4y

4x+48=y

h(x)=4x+48

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