WILLLLLLLLLLLL MARK BRAINLISTTTTTTT

WILLLLLLLLLLLL MARK BRAINLISTTTTTTT

Answers

Answer 1

Answer:

f (8) = ( -161 )

Step-by-step explanation:

[tex]f(x)=-3x^{2} +3x+7[/tex]

To find f(8) sub 8 for x in the equation and simplify:

[tex]f(8)=-3(8^{2} )+3(8)+7[/tex]

= -192 + 24 + 7

= -168 + 7

= -161

so f(8) = -161


Related Questions

find the finance charge for a $25,000, three year loan with a 9.25% apr. How much interest is paid

Answers

Answer:

$6,937.50

Step-by-step explanation:

Interest = Principal x Rate x Time

I = 25000(.0925)(3)

Solve for x in the diagram
A)38
B)16
C)20
D)42

Answers

Answer:

D) 42

Step-by-step explanation:

48 x 2= 96

180 - 96 = 84

84/2 = 42

At the market, potatoes cost 1.15 per pound.Imagine you bought 3.45 worth of potatoes. How many pounds of potatoes did you buy? Explain a strategy you could use to solve this problem.

Answers

Answer:

You brought 3 lbs of  potatoes

Step-by-step explanation:

divide 3.45 by 1.15

Answer:

3 (three)

Step-by-step explanation:

You have to divide 3.45 by 1.15 and you will get 3, you can also do the inverse which means the opposite 3 x 1 = 3 and 3 / 1 = 3.  

The difference in means is about ____ times the mean absolute deviations

Answers

Answer:

A little more than 3 times

Step-by-step explanation:

2x-y=60
6y=x
Solve the system using substitution. Check your solution.

Answers

Answer:

[tex]x = \frac{360}{11} [/tex]

[tex]y = \frac{60}{11} [/tex]

Step-by-step explanation:

Since 6y=x plug 6y in for x on the top equation.

[tex]2(6y) - y = 60[/tex]

[tex]12y - y = 60[/tex]

[tex]11y = 60[/tex]

[tex]y = \frac{60}{11} [/tex]

Plug y=60/11 into 6y=x

[tex]6( \frac{60}{11} ) = x[/tex]

[tex] \frac{360}{11} = x[/tex]

Plug 360/11 into 2x-y=60

[tex]2( \frac{360}{11} ) - \frac{60}{11} = 60[/tex]

[tex] \frac{720}{11} - \frac{60}{11} = 60[/tex]

[tex] \frac{660}{11} = 60[/tex]

The identity is true

In ΔKLM, the measure of ∠M=90°, the measure of ∠K=83°, and KL = 74 feet. Find the length of MK to the nearest tenth of a foot.

Answers

Answer:

9

Step-by-step explanation:

For the triangle it is given that AE2 + EB2 = 9 and BE2 + EC2 = 16
Find AC =

Answers

Answer:

Step-by-step explanation:Given :  right triangle ABC  ,  AE^2 + EB^2 =9 and BE^2 + EC^2 = 16

To find : AC

Solution:

BE ⊥  AC

∠AEB = 90°

=> ΔAEB is right angled

=> AB² = AE² + EB²

=> AB² =  9

∠BEC = 90°

=> ΔBEC is right angled

=> BC² = BE² + EC²

=> BC² =  16

∠ABC = 90°

=> AC² = AB² + BC²

=> AC² = 9 + 16

=> AC² = 25

=> AC = 5

AC = 5

The length of AC is 5 units.

What is a Triangle?

Any three-sided polygon having three edges and three vertices is referred to as a triangle in geometry. The most important attribute of a triangle is that its internal angles sum to 180 degrees. The triangle's angle sum attribute is what is known as.

As per the given data:

We are given the diagram of ΔABC which is right-angled.

BE is perpendicular to AC.

AE² + EB² = 9 ...(i)

BE² + EC² = 16 ..(ii)

By using the Pythagoras theorem in ΔABE:

AE² + EB² = AB²

From comparing with eq (i)

AB² = 9

AB = √9 = 3 units

By using the Pythagoras theorem in ΔCBE:

BE² + EC² = BC²

From comparing with eq (ii)

BC² = 16

BC = √16 = 4 units

By using the Pythagoras theorem in ΔABC:

AB² + BC² = AC²

AC² = 3² + 4²

AC² = 9 + 16 = 25

AC = 5 units.

The length of AC is 5 units.

Hence, The length of AC is 5 units.

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find the HCF and LCM of: x^3+27,2x^3-6x^2+18x,x^2-3x+9​

Answers

Answer:

hcf:3x^3-6x^2+y^2-3x+54

lcm:2(x+3)(x^2-3x+9)(x^3-3x^2+9)(y^2-3x+9)

Two similar figures have sides in the ratio of 23. If a side of the smaller triangle has a length of 7, what is the length of
the corresponding side of the other triangle?
A. 10/12
B. 14
C. 21
D. 4 2/3

Answers

A. 2 parts is 7, so 7/2 is 3.5 = 1 part, then multiply by 3 to make the corresponding side which is 10.5 or 10 1/2

Plz help fast will mark brainliest

Answers

Answer: -270

Step-by-step explanation:

First, simplify the exponent

[tex]-6*(25+20)[/tex]

Then, distribute

[tex]-150+-120[/tex]

Then, subtract(add a negative)

[tex]-270[/tex]

Hope it helps <3 :)

-6(-5^2+20)

You’ll first need to evaluate the exponent

-6(-25+20)

Now you need to calculate the additional numbers

-6*-5

30, 30 is your answer. Therefore the value of the expression is 30

inequalities!! please help!!

Answers

Answer:

x=24

Step-by-step explanation:

$;$"+";$;";";'+$-$$+$+$+_+

Que es una Progresión Aritméticas

Answers

Una progresión aritmética o secuencia aritmética es una secuencia de números tal que la diferencia entre los términos consecutivos es constante. Por ejemplo, la secuencia 5, 7, 9, 11, 13, 15 ... es una progresión aritmética con una diferencia común de 2

help me iv been trying from this morning

Answers

Answer:

i did the first

Step-by-step explanation:

1st way

Standard form: a(X-h)²+k = ( -2/3X² -16/3X -32/3) +32/3 -17/3 = -2/3(X +4)² +5

y = -2/3*X^2-16/3*X-17/3

X = -4 ±√( 15/2) = -6.7386, or -1.2614

Axis of symmetry: X= -4; Vertex (maximum)=(h,k)=( -4, 5); y-intercept is (0,-5.66666666667)

two real roots: X=-1.2613872124776866 and -6.738612787477313

Answer:

b) y = -2/3(x + 4)² + 5c) y = 1/2(x + 8)² - 5d) y = 3/8(x + 7)² - 2

Step-by-step explanation:

Vertex form is:

y = a(x - h)² + k

Vertex of the function is point (h, k)

b) Congruent to y = 2/3x² and opens down means:

a = -2/3

Maximum value at (-4, 5) means:

h = -4, k = 5

The function is:

y = -2/3(x + 4)² + 5

c) Congruent to y = 1/2x² and has minimum value y = -5 at x = -8:

a = 1/2, h = -8, k = -5

The function is:

y = 1/2(x + 8)² - 5

d) Vertex (-7, -2) and passes through the point (-3, 4)

y = a(x + 7)² - 2

Substitute coordinates and find a:

4 = a(-3 + 7)² -26 = 16aa = 3/8

The function is:

y = 3/8(x + 7)² - 2

Help me out here I don’t feel like doing the math on my own right now

Answers

Answer:

5n-3

Step-by-step explanation:

hope i am right

I believe the answer is 5n-3...

One angel of an isosceles triangle is 120 degrees. What is the measure of the other two angles

Answers

Answer:

30 degrees

Step-by-step explanation:

180 - 120 = 60

60 / 2 = 30

Hope that helps!

Answer: 30°

Step-by-step explanation: because math

Help pls i will mark brainliest

Answers

Answer:

15

Step-by-step explanation:

5*6=30

8*4=32

30*16=480

480/32=15

Find the next two terms of each geometric sequence (show work)
1. -15, -30, -6, __, __

2. 90, 30, 10, __, __

3. 1/4, 3/8, 9/16, __, __

Answers

Answer:

[tex]\huge\boxed{1.\ -120,\ -240}\\\boxed{2.\ \dfrac{10}{3},\ \dfrac{10}{9}}\\\boxed{3.\ \dfrac{27}{32},\ \dfrac{81}{64}}[/tex]

Step-by-step explanation:

[tex]\text{if}\\a_1,\ a_2,\ a_3,\ ...\text{is a geometric sequence}\\\text{then}\\\\\dfrac{a_2}{a_1}=\dfrac{a_3}{a_2}=\dfrac{a_4}{a_3}=...=\dfrac{a_n}{a_{n-1}}=const.=r\\\\a_n=a_{n-1}r[/tex]

[tex]1.\\-15,\ -30,\ -6\\\\\dfrac{-30}{-15}=-2;\ \dfrac{-6}{-30}=\dfrac{1}{5}[/tex]

it,s not a geometric sequence...

I think it should be:

[tex]-15,\ -30,\ -60,\ ...\\\\\dfrac{-30}{-15}=2;\ \dfrac{-60}{-30}=2\\\\next\\\\-60\cdot2=-120\\-120\cdot2=-240[/tex]

[tex]2.\\90,\ 30,\ 10,\ ...\\\\\dfrac{30}{90}=\dfrac{1}{3};\ \dfrac{10}{30}=\dfrac{1}{3}\\\\next\\\\10\cdot\dfrac{1}{3}=\dfrac{10}{3}\\\\\dfrac{10}{3}\cdot\dfrac{1}{3}=\dfrac{10}{9}[/tex]

[tex]3.\\\dfrac{1}{4},\ \dfrac{3}{8},\ \dfrac{9}{16},\ ...\\\\\dfrac{\frac{3}{8}}{\frac{1}{4}}=\dfrac{3}{8}\cdot\dfrac{4}{1}=\dfrac{3}{2};\ \dfrac{\frac{9}{16}}{\frac{3}{8}}=\dfrac{9}{16}\cdot\dfrac{8}{3}=\dfrac{3}{2}\\\\next\\\\\dfrac{9}{16}\cdot\dfrac{3}{2}=\dfrac{27}{32}\\\\\dfrac{27}{32}\cdot\dfrac{3}{2}=\dfrac{81}{64}[/tex]

What is the lowest common denominator of the following two fractions?
1/4 and 1/6

Answers

Answer:

Step-by-step explanation:

4=2(2), 6=2(3) so the lcd is 2(2)3=12

What is the result when 12x2-7y2 is added by -10x2+y2?
A.2x2-6y2
B.2x2+6y2
C.-2x2-8y2
D.-2x2+8y2​

Answers

Answer:

A

Step-by-step explanation:

12x² - 7y² - 10x² + y² = 12x² - 10x² - 7y² + y²

                                 = (12 - 10)x² + (-7 + 1)y²

                                  = 2x² + (-6y²)

                                  = 2x² - 6y²

can anyone solve this​

Answers

They are equal. It was explained above

Is VUW similar to
VXY? If yes,explain how you know. If no, explain
why not.


Answers

Answer:

Yes, because m<UVW is congruent to m<XVY and m<VUW is congruent to m<VXY

Step-by-step explanation:

How many 3-inch thick bags of mulch should Noemi buy to cover 100 square feet at a depth of 4 inches? The length is 3.2ft and the width is 2.5ft.

Answers

Answer:

Approximately 17 bags.

Step-by-step explanation:

The length of the bag of mulch = 3.2 ft

The width of the bag of mulch = 2.5 ft

The thickness of the bag of mulch = 3 inch = 0.25 ft

Volume of a bag of mulch = length x width x thickness

                                          = 3.2 x 2.5 x 0.25

                                          = 2 cubic feet

So that, the volume of a bag of mulch is 2 cubic feet.

The area to be covered = 100 square feet

The depth of the area = 4 inches = [tex]\frac{1}{3}[/tex] feet

volume of the portion to be covered = area x depth

                                                = 100 x [tex]\frac{1}{3}[/tex]

                                                = 33 [tex]\frac{1}{3}[/tex] cubic feet

The volume of the portion to be covered is 33 [tex]\frac{1}{3}[/tex] cubic feet.

The number of bags of mulch needed = [tex]\frac{33\frac{1}{3} }{2}[/tex]

                                                       = 16[tex]\frac{2}{3}[/tex]

                                                   = 16.6667

The number of bags of mulch needed is 17.

Factor: 3bc-4ad +6ac-2bd
Can you create a rubric for this math question

Answers

Answer:

(3c−2d)(2a+b)

Step-by-step explanation:

3bc−4ad+6ac−2bd

Do the grouping 3bc−4ad+6ac−2bd=(6ac−4ad)+(3bc−2bd), and factor out 2a in the first and b in the second group.

2a(3c−2d)+b(3c−2d)

Factor out common term 3c−2d by using distributive property.

(3c−2d)(2a+b)

WHAT WOULD THIS BEEEEE ANYONEEE!??

Answers

Answer:

64

100

Step-by-step explanation:

8 x 8 = 64

10 x 10 = 100

Answer:8^2= 64 10^2= 100

Step-by-step explanation:

8*8=64: 10*10=100

if the velocity is big, must there be forces on it?

Answers

Answer:

Acceleration and velocity

Newton's second law says that when a constant force acts on a massive body, it causes it to accelerate, i.e., to change its velocity, at a constant rate. In the simplest case, a force applied to an object at rest causes it to accelerate in the direction of the force.

Help me I give crown :--(((

Answers

Answer:

The answer is 170 meters

Step-by-step explanation:

hope it helps :)

7. log a + log b + log c = log (abc). True or False? *
O True
O False

Answers

true it is true uppppppp yup that’s is right

what is 1042755456328946324416+2462542​

Answers

Answer:

1.042755456*10^21

Step-by-step explanation:

If the weight of 90 books is 50kg, what is the weight of 180 such books. In both proportion and unitary method.

Answers

Answer: See explanation

Step-by-step explanation:

From the question, we are informed that the weight of 90 books is 50kg. We need to get the weight of a book first and this will be:

= 50/90

= 5/9

Therefore, the weight of 180 such books will be 5/9 multiplied by 180. This will be:

= 5/9 × 180

= 100kg

25 points

1. There are 34 rose bushes currently in the park. Park workers will plant

more rose bushes today.

When the workers are finished there will be 70

rose bushes in the park. How many rose bushes did the workers plant

today?

34 + 70 = x; x = 104

34 - x = 70 ; x = 36

34 + x = 70; x = 36

70 - 34 = x; x= 36

Answers

Answer:

34 + x = 70 ; 36

Step-by-step explanation:

Given that:

Current amount = 34

Final amount = 70

Number of roses planted by the workers today ;

Current amount + number planted today = final amount

Let number planted today = x

34 + x = 70

x = 70 - 34

x = 36

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