Evaluate the expression: -4a2 + 3ab - (2a + 3b) if a = 1/4 and b = -12
Enter answer as a decimal.

Answers

Answer 1

Answer:

Value of equation = 26.25

Step-by-step explanation:

Given:

Equation given

-4a² + 3ab - (2a + 3b)

Given value of a = 1/4

Given value of b = -12

Find:

Value of equation

Computation:

-4a² + 3ab - (2a + 3b)

By putting value of a and b

-4(1/4)² + 3(1/4)(-12) - [2(1/4) + 3(-12)]

-4(1/16) - (36/4) - [2/4 - 36]

-4/16 - 36/4 - [-142/4]

- 0.25 - 9 + 142/4

-0.25 - 9 + 35.5

Value of equation = 26.25


Related Questions

find x

help please, asap.

Answers

Answer:

X=58 degrees

Step-by-step explanation:

So We can start by finding the angle thats supplementary to 109.

Well 109 and another unknown angle (which will be Y for this scenario) would form a straight line which is 180 degrees.

109+y=180

Solve that by isolating the y and you would get 71 as the missing side.

Now we have 2 sides, 71 and 51. We’re trying to find x or the angle vertical to the thrid interior angle of the triangle.

Vertical is basically equal so we really just gotta find the third side. A triangle is equal to 180 degrees and if you add em up.

71+51+x=180

Combine like terms

122+x=180

Isolate the X

x=58

So x is 58 degrees.

Answer:

x = 180 - 51 - 71 = 58°

A city mayor plans to build two new
parks. Each park will cover 1.45 acres.
How many acres will the new parks
cover altogether? Explain.
Most
represe

Answers

Answer: 2.90 acres.

Step-by-step explanation:

1.45x2 or 1.45 + 1.45  

Please help, test due in 2 hours! Will give good review and brainliest.

Answers

Answer:

B. Ellipse

...............................................

PLEASE HELP FAST I WILL GIVE YOU BRAINLIEST
AABC - AQRS
Find the missing side length, n.
R
B.
12.5
5
2
А-
-C
4
10
n = [?]
Enter

Answers

Answer:

5

Step-by-step explanation:

yoy need to find hue multiplying factor, this is done by dividing one of the sides in QRS, by one in ABC. you can divide 10 by 4 to give you 2.5, and then multiply that by 2 to get 5


Look at the two quadrilaterals shown below.
Which one of the following statements about these quadrilaterals Is FALSE?
Both quadrilaterals have four equal angles.
Both quadrilaterals have four equal sides.
Both quadrilaterals have opposite parallel sides.
Both quadrilaterals have four right angles. The two shapes are a square and a rectangle

Answers

Answer:

"Both quadrilaterals have four equal sides."

Step-by-step explanation:

This statement is only true for a square since as we all know it has four equal sides, but a rectangle has two parallel sides that are equal to each other but on the other two parallel sides, they must differ in length.

Answer:

"Both quadrilaterals have four equal sides." is the false statement

Step-by-step explanation:

Put the lowest number on the left 2 0 -3 -4

Answers

Answer:

-4, -3, 0, 2

Step-by-step explanation:

Answer:

-4,-3,0,2 :p ...........

REAL LIFE ISSUE!

HELP PLEASE I NEED TO KNOW IF IM GOING TO BE HELD BACK!!!
What grade point average would I have if I had 3 A's, 1 B, 1 D, and 1 F.

Answers

Answer:

You are doing good I would say! Your average grade would be a B- Or just a normal B Somewhat around there.

Step-by-step explanation:

I hope this helps you and good luck! Bye!

Grade scale:

A → 100-90

B → 89-80

C → 79-70

D → 70

F <70

That being said to see your grade, add all your grades up then divide it by how many grades you have.

That being said, if you add all your grades then divide it by how many grades you have, you should have a 85.6 as your average.

Hence, your average is a B.

whats

455
x 6
-----------

Answers

Answer:

2730

Step-by-step explanation:

Answer:

2730................:)))))))))))))

Shelia's measured glucose level one hour after a sugary drink varies according to the normal distribution with μ = 132 mg/dL and σ = 11.3 mg/dL. what is the level L such that there is probability only 0.01 that the mean glucose level of 5 test results falls above L?

Answers

Answer:

134.6

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula. This is X when Z has a p-value of 1-0.01 = 0.99. So it is X when Z = 2.325.

The level is L = 134.6

The Central Limit Theorem estabilishes that, for a random variable X, with mean  and standard deviation, large sample size can be approximated to a normal distribution with a mean and standard deviation

you pick a card at random 4,5,6,7 What is p(5)

Answers

Answer:

1/4

Step-by-step explanation:

probability of picking 5 is 1/4

the number of 5 in the set is 1 and the total is 4

hence 1/4

Answer:

1/4 or 25% chance

Step-by-step explanation:

There are 4 cards in total

There is only 1 5 card.

To find the probability of getting 5:

1/4 = 25%

21
х
15
X
(Round to the nearest tenth)

Answers

Answer:

that would be 6

x = 6

Step-by-step explanation:

Which graph is defined by the function given below?
y = (x + 2)(x + 7)
118
10
A. Graph A
B. Graph B
C. Graph C
D. Graph D

Answers

Answer:

Graph A

Step-by-step explanation:

the zeros of the function are

0=x+2  x=-2

and

0=x+7  x=-7

so the graph where the function crosses those two points at y=0

3/4(5x - 3) + 8 = 17.

Answers

Answer:

x=3

Step-by-step explanation:

Dos puntos en matematicas

Answers

Answer:

eso no es una pregunta

Step-by-step explanation:

having trouble on this ixl

Answers

Answer:

1/2

Step-by-step explanation:

Since they sold 3 cupcakes of each section, it would be a 50/50 chance that the next one would be either.

Math\Angles
Find the missing angle


Answers

Answer:

x = 180° - 72° = 108°

Because x and 72 degrees are supplementary angles.

Look at the attached screenshot for my answer!!! Hope this helps!! Have a wonderful life now!!!

45 people in a certain company can work together to finish a project in 15 days. For a project of the same workload, the
company decided to use 15 people. Assume all people have the same level of productivity.
In how many days can this project be completed?
SELECT ONLY ONE
5 days
10 days
22.5 days
45 days

Answers

Given:

45 people will accomplish the given task in 15 days.

To find:

Days taken by 15 people to complete the same task.

Solution:

Since, 45 people of a company can finish a work in 15 days

Therefore, 1 person can accomplish the task in days = [tex]15\times45[/tex]

                                                                                        = [tex]675[/tex] days

15 people will accomplish the same task in number of days = [tex]\frac{675}{15}[/tex]

                                                                                                    = [tex]45[/tex]

Therefore, number of days taken by 15 people to accomplish the same task will be 45 days.

Learn more about the inverse relation,

https://brainly.com/question/9286901

I need help pls pls pls

Answers

Answer:

e. 55 miles hope that helped

Kira rode 20 miles. You can see on the hours 3-4 it starts from 35 and goes to 55 which is 20 miles :)
Hope this helps

The sampling distribution for the ANOVA test is
a. the Z distribution.
b. the t distribution.
c. the F distribution.
d. None of the answer choices

Answers

Answer:

The F distribution

Mrs. Smith is shopping for a toy chest to go
in her kids' playroom. She looks at the options
shown.


How much floor space will toy chest A take up?

Answers

Answer: 20ft

Step-by-step explanation:

floor space is only worried about the area of the base, so A would be 4*5 or 20

Answer:

20

Step-by-step explanation:

la expecion del volumen​

Answers

Answer:

no hay imagen lo siento

Step-by-step explanation:

Need help!! ASAPP!

With number #4


thx <3

Answers

Answer:

Clean and Bright

Step-by-step explanation:

For soapy suds, you would do 13×12, would would give you only 156 sq inches. However, with Clean and Bright, you would do 9×13×8 since it is three dimensional. This would give you 936 cubic inches, meaning it holds the most detergent.

The product of a number and 3 increased by 9 is less than -42


TRANSLATE

Answers

Answer:

3x+9 < - 42

Step-by-step explanation:

giving brainliest!! *easy*

Answers

Answer:

370 square millimeters

Step-by-step explanation:

2x9x5=90

2x10x5=100

2x10x9=180

90+100+180=370 square millimeters

Answer

450mm^3

Step-by-step explanation:

the picture has the workings

A=l×w×h

A=10mm×9mm×5mm

A=450mm^3

Find the sector area.

Answers

Answer:

D

Step-by-step explanation:

I think the awnser for this should be d

3. A savings account has a 3% interest rate. (a) Complete the ratio table shown. Show your work. Deposit ($) 100 50 300 Interest ($) 3 12 6 36 (b) How much more interest would you have if you deposited $200 than if you deposited $150? Show your work.

Answers

Answer:

Wait what

Step-by-step explanation:

Describe the figure that is created with the points ( -2, -3) ( - 2, 5, (1, -3), and (1, 5)

Answers

Answer:

Hi! The answer to your question is Rectangle

Step-by-step explanation:

↗✧*☆*: .。..。.:*☆♪↗✧*☆*: .。..。.:*☆♪

☆Brainliest is greatly appreciated!☆

Hope this helps!!

Stay Safe!!!

- Brooklynn Deka

Dulce the dog loves to go on walks. Each morning she walks for 45minutes.She also goes for a 20 minute walk at lunch, and an evening stroll for 1 hour and 30 minutes. How long does she walk each day?

Answers

Answer:

2 hour and 35 minutes

Step-by-step explanation:

45 +20 = hour and 5 minutes

65+90=155 or 2 hour and 35 minutes

2 hrs and 35 minutes

The algebraic expression for the sum of 5 and g?

Answers

Answer:

5 + g

Step-by-step explanation:

The sum of 5 and g,

5 + g

Which of the points (s, t) is not one of the vertices of the shaded region of the
set of inequalities shown below?
ss 20 -0.5t
s 12-t
ss 24-t
S>O
t>0

Answers

Answer:

24,0

Step-by-step explanation:

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