Given that
a = -2, b = 5 and c = -5
work out
2b - 3ac

Answers

Answer 1

Answer:

- 20

Step-by-step explanation:

Given the expression

2b - 3ac ← substitute given values for a, b and c

= 2(5) - (3 × - 2 × - 5)

= 10 - 30

= - 20

Answer 2

Answer:

-20 is the required answer

Step-by-step explanation:

2b-3ac

=2×5-3×-2×-5

=10-30

=-20


Related Questions

Write an equation in slope-intercept form perpendicular to the given equation through the given point
Y = -3x + 4
(6,-2)

Answers

Answer:

The equation in slope-intercept form perpendicular to the given equation [tex]y = -3x + 4[/tex] through the given point (6,-2) is [tex]\mathbf{y=\frac{1}{3}x}[/tex]

Step-by-step explanation:

We need to write an equation in slope-intercept form perpendicular to the given equation through the given point

y = -3x + 4

(6,-2)

The general equation in slope intercept form is: [tex]y=mx+b[/tex] where m is slope and b is y-intercept.

We need to find slope and y-intercept.

Finding slope:

The given line is perpendicular to required line, so there slopes are opposite

The slope of given line [tex]y = -3x + 4[/tex] is m = -3, (By comparing it with general equation y=mx+b, we get m = -3)

The slope of required line is: [tex]m = \frac{1}{3}[/tex]

Finding y-intercept:

y-intercept can be found by using slope [tex]m = \frac{1}{3}[/tex] and the point(6,-2)

[tex]y=mx+b\\-2=\frac{1}{3}(-6)+b\\-2=-2+b\\b=-2+2\\b=0[/tex]

So, we get y-intercept b =0

Equation of required line:

So, the equation of required line having slope [tex]m = \frac{1}{3}[/tex] and y-intercept b =0 is:

[tex]y=mx+b\\y=\frac{1}{3}x+0\\y=\frac{1}{3}x[/tex]

So, the equation in slope-intercept form perpendicular to the given equation [tex]y = -3x + 4[/tex] through the given point (6,-2) is [tex]\mathbf{y=\frac{1}{3}x}[/tex]

I need help I dont understand

Answers

Answer:

5

Step-by-step explanation:

Slope intercept form is where y= mx + B where M is the slope and B is the y-intercept

The hanger image below represents a balanced equation.
a
9.1
4
Write an equation to represent the image.

Answers

Answer:

2x = 3 hope that helps

Step-by-step explanation:

Tomas wants to spend less than $100 for a new soccer ball and
shoes. The ball costs $ 24 . Write an inequality that gives the
amount that Tomas can spend on shoes.

Answers

Answer:

x+24<100

Step-by-step explanation:

Select the proper unit multiplier to use when converting 6 ounces to pounds. PLEASE PICK ONE AND ILL GIVE BRAINLIEST

16 oz / 1 lb

16 lb / 1 oz

1 oz / 16 lb

1 lb / 16 oz

none of the above.

Answers

Answer:

16oz / 1 lb

Step-by-step explanation:

3 ........:..:..zzz

what is the greatest common factor of 20 and 36?​

Answers

your answer would be 4 :)

Answer:

4

I just know this, theres no explanation.The greatest common factor (GCF) of a set of numbers is the largest factor that all the numbers share.

ABCD shows the original location of a shape. FGHI shows the shape reflected across a
vertical line. If the length of side AB is 5.8 units, and the length of side CD is 8.1 units,
what is the length of side FG?
B
D
O A 5.8 units
OB. 8.1 units
OC. 11.3 units
OD
13.9 units

Answers

Answer:

A. 5.8

Step-by-step explanation:

if ABCD was reflected to FGHI means that A became F and B became G so AB became (was mapped to ) FG after reflection.

the length ( or distance) after reflection is is preserved ( does not change) so

if AB = 5.8 units then FG =5.8 units.


Could you please explain how you got your answer

Answers

Answer:

2) 44°

Step-by-step explanation:

CA and CB are perpendicular to OA and OB, so the angles A and B are right angles.

Angles AOB and ACB sum to 180°

3x + 10 + 38 = 1803x = 180 - 483x = 132x = 132/3x = 44

Correct option is 2) 44°

3) This decimal is colored to show
1

Answers

i believe it’s the first one. i’m very sorry if it’s wrong

12a+10 find the algebraic expression

Answers

Answer:

2(6a+5)

Step-by-step explanation:

Factor 12a+10

12a+10

=2(6a+5)

Answer:

2(6a+5)

Step-by-step explanation:

A hotdog costs $3 and a corndog costs $1.5 . If was collected, write a mathematical sentence to represent this information.

Answers

Answer:

4.5

Step-by-step explanation:

3+1.5=4.5

4.5 bro it is the answer

I need your help please!!

**the answer choices are in the pictures as well**

Answers

Answer:

The line test is the third graph that shows a vertical line with two points plotted.

Step-by-step explanation:

A line test is used to determine if a graph is a function. Every input should only have one output. Since when she inputs 1.5 she gets two different answers it is not a function.

What's the "x" in -3x + 17 = -4?

Answers

Answer:

What's the "x" in -3x + 17 = -4?

Step-by-step explanation:

What's the "x" igcugxxugutdffifiyfiyfiyfuydutdtuuffufuyfufutyfufufutfuyfufutfuttfuuffufuufugfiyfygugutuyuggiygiyyfiygiufiyfiyfiyin -3x + 17 = -4?

Answer:

x=7

Step-by-step explanation:

-3x + 17 = -4

-3x=-4-17

-3x=-21

x=7

the ratio of PHP 600 to 12 hours​

Answers

Answer:

50:1

Step-by-step explanation:

600/12

1 hour for every 50 PHP

In the diagram, the measure of angle 9 is 85°.
GO
1
2
516
4
3
8
7
910
13/14
1211
16/15
Which angle must also measure 85°?
22
0_5
_11

Answers

Answer:

angle 11 they are vertically opposite.

∠11 must also be 85 degrees.

What are vertically opposite angles?

Angles that are vertically opposed to one another at a certain vertex are formed by two straight lines intersecting. Angles that are vertically opposed to one another are equal. They are referred to as vertical angles at times.

As per the given data:

∠9 = 85°

From the diagram, ∠9 and ∠11 are vertically opposite angles.

∴ ∠9 = ∠11

∠11 must also measure 85°.

To learn more on Angles, click:

brainly.com/question/28451077

#SPJ7

How many 5/6 are in 2/3

Answers

Answer:

The amount is 4/5 of 5/6 is in 2/3.

Step-by-step explanation:

There 4/5 is 5/6 in the fraction 2/3 which is determined by the division operation.

What is the division operation?

In mathematics, divides left-hand operands into right-hand operands in the division operation.

For example 4/2 = 2

We have to determine how many 5/6 are in the fraction 2/3.

The numbers are given in the question below

2/3 and 5/6

According to the given question, the required solution would be as:

⇒ 2/3 ÷ 5/6

⇒ (2/3) / (5/6)

Reciprocal the terms of the numerator in the above expression

⇒ (2/3) × (6/5)

Apply the multiplication operation,

⇒ 12 / 15

Reduce the fraction in the simplest form,

⇒ 4/5

Therefore, there 4/5 is 5/6 in the fraction 2/3.

To learn more about the division operation click here :

brainly.com/question/25870256

#SPJ2

(4p-4)+(-7p-7)
I need HELP ON THIS PLEASE FAST!!

Answers

Answer:

The correct answer is number 2

-3p - 11

I'm 1000000% sure...

Sheila was given $20.00 for her birthday and spent $14.79 on a CD. How much was her change?
A. $5.21
B. $6.31
C. $16.31
D. $34.79

Answers

Answer:

the answer would be A because when u subtract it the answer is $5.21

Please I need help...

Answers

Answer:

(2,-2)

I hope this helps:

Please help parts b and c

Answers

Answer:

a = 2

b = 4

c = 8

Step-by-step explanation:

Remember the relationship:

[tex](a^{x})^{y} = a^{x*y}[/tex]

First, in "a" we have:

a) [tex]8^{1/3} = \sqrt[3]{8} = 2[/tex]

then in the next ones, we can use the result that we obtained in the part a:

b) [tex]8^{2/3} = (8^{1/3})^2 = (2)^2 = 4[/tex]

Now we can do exactly the same in c:

c) where first we need to know that:

2*2*2*2 = 4*4 = 16

then:

2^4 = 16

then:

[tex]\sqrt[4]{16} = 16^{1/4} = 2[/tex]

Now let's solve the problem:

[tex]16^{3/4} = (16^{1/4})^3 = (2)^3 = 2*2*2 = 8[/tex]


4. Kiran says "If I walk 3 miles per hour toward you, and you walk 3.4 miles per hour toward me,
it's the same as if you stay put and I jog 6.4 miles per hour.” What do you think Kiran means
by this? Is he correct?

Answers

Answer:

0.0000000000000000..00000000000000000000000

Step-by-step explanation:

The diagram shows a circle inside a square.
a O
16 cm
Work out the area of the circle.

Answers

Answer:

perimeter of circle=2πr

16=2πr

r=16/2π=8/πcm

now.

area of circle=πr²=π(8/π)²=π×64/π²=64/(22/7)=64×7/22=20.36cm²

A building is 200 feet high. One end of a wire is attached to the top of the building.
The other end is attached to the group 150 feet away from the base of the building. How
long is the wire?

Answers

Answer:

250 feet

Step-by-step explanation:

If you draw out this situation, you would get a right triangle with a height of 200 (feet) and a base of 150 (feet). The wire is the missing length, or the 'hypotenuse' of this right triangle. You use the pythagoras thingie, and the formula is a^2 + b^2 = c^2.

a= 200

b= 150

c= ?

40,000 + 22,500 = c^2

62,500 = c^2

c = √62,500

∴ c = 250

WILL MARK BRAINLIEST!!!!!! Which of the following graphs represent a function?

Answers

The first one is a function

Answer:

The second one

Step-by-step explanation:

the semi circle

i'm really getting tired of the questions like these lol

Answers

Step-by-step explanation:

(3x+3)(x+2)=

3x^2+6x+3x+6

=3x^2+9x+6

we get quadratic equation

find discriminant:

D=b^2-4ac=81-72=9

x=(-b±√D)/2a

x1=-6/6=-1

x2=-12/6=-2

one of the x values should be correct.

but why when I try to put values I get zero

. A girl pushes herself up a steep ramp in her
wheelchair. She gains a vertical distance of
25.8 m when she reaches the top of the ramp.
She turns around and coasts back down the ramp.
If the combined mass of the girl and her wheelchair
is 64.6 kg, what would be her coasting speed at the
bottom of the ramp? Show all your work.

Answers

Answer:

32 Joule by 21 secs

Step-by-step explanation:

I hope that's the correct answer. Best of luck

what is the missing term of ..9, __ , 19

Answers

Answer:

The answer could be anything, but if it's an arithmetical sequence, then it's 14.

Step-by-step explanation:

I'm assuming that the added numbers always stay the same, meaning it's linear. If you add 5 to 9, you get 14. If you add 5 again, you get 19. Another way of doing this is (19-9)/2 = 5, then 9+5=14.

Determine the intercepts of the line.

y=8x - 18


y-intercept:

x-intercept:

Answers

Answer:

y-intercept:  -18

x-intercept: 9/4

Step-by-step explanation:

Substitute x = 0, we find that y = -18 i.e. the y-intercept is -18.

Substitute y = 0, we find that x = 9/4 i.e. the x-intercept is 9/4.

The histogram to the right represents the weights​ (in pounds) of members of a certain​ high-school mathmath team. How many team members are included in the​ histogram?

Answers

Answer:

13 team members are included in the​ histogram.

Step-by-step explanation:

Consider the provided information.

The required histogram is shown in the figure.

We need to find the team members included in the histogram.

For this, we will add the frequency or the height of each bar.

2+1+1+5+1+3=13

Hence, 13 team members are included in the​ histogram.

PLEASE HELP
need to know cos(F), sin(F), and tan(F)
WILL GIVE BRAINLIEST

Answers

Answer:

Cos(F) = 5/13  

Sin(F) =  12/13

Tan(F) =  12/5

Step-by-step explanation:

Soh Sine: Opposite(12) over Hypotenuse(13)

Cah Cosine: Adjacent(5) over Hypotenuse(13)

Toa  Tangent: Opposite(12) over Adjacent(5)

Other Questions
Rewrite in simplest terms: -4k - 9(-8k + 6) Does anyone know how to make this a longer sentence? First you have to analyze your problem/question. After you research and collect data. Then you create a hypothesis and see if that might be the answer. Test your hypothesis then use that to come up with a conclusion. need some facts about The Climate change In Arctic, example :like polar bears are not surviving A vegetarian restaurant used 6,680 ounces of spinach last month. This month, with a menu update, it used 10% more than that amount. How much spinach did the restaurant use this month? Solve the system of equations by the substitution method.y=5x+8y=8x+9 Select the correct choice below and, if necessary, fill in the answer box to complete your choice. Determine which line best represents the line of best fit: Line 1 Line 2 Line 3 What became illegal under the Sedition Act? 5.2 divided by what =0.052 and 7,650 divided by what = 7.65 a) Las siglas M. RU significan Find the exact value of each of the remaining trigonometric functions of theta when tan theta = -3/4 Can you help me with this worksheet evaluate the following by writing it as a difference of two squares first : 104^2 - 96^2 Which landform is created when two continental plates are colliding?A.canyonB.mountainsC.rift valleyD.mid-ocean ridge 10. What is the correct order of notes by their value from largest to smallest? A. Eighth Note, Quarter Note, Half Note, Whole Note B. Quarter Note, Half Note, Whole Note, Eighth Note C. Half Note, Whole Note, Eight Note, Quarter Note D. Whole Note, Half Note, Quarter Note, Eight Note Here is an addition sentence:(3 + 4) + 2 = 9Drag the numbers and the parentheses to create an equivalent addition sentence that illustrates the associative property of addition. The fastest flow is on the inside of a meander bend. True or false mujer culonamujer culonamujer culonamujer culonamujer culonamujer culonamujer culonamujer culonamujer culonamujer culona What is the pattern for 784.5, 78.45, 7.845 what comes next 15 points!! Will give brainliest for smartest answer! Ashley has $9.05 in dimes and nickels. If she has a total of 108 coins, how many of each type does she have?