Find the value of f(x)= 3x to the power of 2 - x +23 for x=-4

Answer:

d

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Just took the Semester exam and had this question on it, I got it right

Answer:Person on top is wrong its

Step-by-step explanation:

D =0.30

Hey there! I'm happy to help!

Let's look at each spot in the line from left to right and see how many choices they are.

In spot 1, we have 4 choices. Let's say that we choose the student who doesn't want to stand next to to the other student. This means that in the next slot, there are only 2 choices because he cannot stand by the other student. Now when we move to spot number three, there are only two choices left, and then there is 1.

4×2×2×1=16

So, there are 16 different ways the students can stand in a straight line if two of the students refuse to stand next to each other.

Have a wonderful day! :D

Answer:

16

Step-by-step explanation:

Answer:

See below

Step-by-step explanation:

[tex] In\: \triangle AKL, \:\\ AK = 9,\: \\m\angle K = 90\degree, \: \\m\angle A= 60\degree \\

\therefore m\angle L = 30\degree\\

By \:30°-60°-90° \:\triangle \:theorem:\\

AK = \frac{1}{2} \times AL\\(SIDE\: OPPOSITE \:TO \:30\degree) \\\\

9 = \frac{1}{2} \times AL\\\\

AL = 9\times 2\\\\

\huge\red{AL = 18}\\\\

KL = \frac{\sqrt 3}{2} \times AL\\(SIDE\: OPPOSITE \:TO \:60\degree) \\\\

KL = \frac{\sqrt 3}{2}\times 18\\\\

KL = 9\times \sqrt 3\\\\

\huge\purple{KL = 9\sqrt 3}\\\\

P(\triangle AKL) = AK + KL + AL\\

P(\triangle AKL)= 9 + 9\sqrt 3+18\\

\huge\orange{P(\triangle AKL)=(27 + 9\sqrt 3) \: units} \\\\

A(\triangle AKL) = \frac{1}{2} \times KL\times AK\\

A(\triangle AKL) = \frac{1}{2} \times 9\sqrt 3\times 9\\

A(\triangle AKL) = \frac{81\sqrt 3}{2} \\

\huge\pink{A(\triangle AKL) = 40.5\sqrt 3\: units^2} [/tex]

Answer: $2400

Step-by-step explanation:

Based on the question above, a will be the percentage of tickets that were sold while b will be tickwt sales. Therefore,

a = 75%

b = 75% × $3,200

= 0.75 × $3200.

= $2400

Based on the information above, the amount of tickets sales is $2400

Answer:

You should ALWAYS do everything by the same value for using the tables Step-by-step explanation:

if one side gets multiplied so should the other, so let's say you had 2:4 if you are multiplying the 4 by 3, you should also multiply the 2 by 3.

Comparing ratios:

In order to compare a ratio you must have a number that is constant, basically in other words a common number. A number that almost is always the multiplied, or divided by the same amount.

Please. give brainliest I did my best.

[tex] \sf \dfrac{6x+4}{3} = \dfrac{5x-5}{8}[/tex]

By cross multiply, we get

[tex] \sf : \implies (6x+4) \times 8 = (5x-5) \times 3[/tex]

[tex] \sf : \implies 48x+32 = 15x-15[/tex]

[tex] \sf : \implies 48x+32 - 15x + 15= 0[/tex]

[tex] \sf : \implies 33x + 47 = 0[/tex]

[tex] \sf : \implies 33x = -47[/tex]

[tex] \sf : \implies x = \dfrac{- 47}{33}[/tex]

Therefore, answer is [tex] \sf x = \dfrac{- 47}{33}[/tex]

ANSWER:

x=-47/33

EXPLANATION:

[tex]\frac{6x+4}{3} =\frac{5x-5}{8} \\\\24(\frac{6x+4}{3} =\frac{5x-5}{8})\\\\48x+32=15x-15\\\\48x+32-32=15x-15-32\\\\48x-15x=-47+15x-15x\\\\33x=-47\\\\x=-\frac{47}{33}x[/tex]

Answer:

4√5

Step-by-step explanation:

The length=√(3--1)²+(-3-5)²

l=√(4)²+(-8)²

l=√16+64

l=√80=4√5

Answer:

5

Step-by-step explanation:

Answer:

Rewrite the expression= 5^2

Step-by-step explanation:

With the same base number of 5, one adds the exponents.

In this case 5^-2*5^-4*5^8    8-6=2 as the exponent

Answer:

146

Step-by-step explanation:

Answer:

Yes; they are congruent

SSS

Step-by-step explanation:

Here, we want to check if the given triangles are congruent

From what we have, we can see that all three sides are marked for both triangles

So the sides of the triangles are income

So therefore, the triangles are congruent by SSS

its too late but 23.08 so I'm sorry I took so long

Answer:

2

Step-by-step explanation:

Answer:

-24

Step-by-step explanation:

Answer: 225

Step-by-step explanation:

Answer:

3, 4, and 5

Step-by-step explanation:

Given: We're looking for x, x+1, and x+2

Requirements: (x+1)+(x+2)=3(x)

Solve equation:

x+1+x+2=3x

2x+3=3x

3=x

This means the three consecutive integers are 3, 3+1, and 3+2 which is the same as 3, 4, and 5

Answer:

$442

Step-by-step explanation:

Multiply the sales price by the discount percentage. This is the total discount that was taken off.

$520 x 15% = $78.

Subtract the discount amount from the sales price. This gives you the amount that the computer costs after the discount.

$520 - $78 = $442

The computer costs $442.

Answer:

[tex]-\frac{4}{5}[/tex]

Step-by-step explanation:

7/25 ÷ (-0.35) = -4/5 or -0.8

Ace Carlos

Answer:

Step-by-step explanation:

Notice that, the angle QRS is external to the triangle and adjacent to the angle PRQ. According to the theorem of a external/adjacent angle, we have: m∠QRS = m∠PQR + m∠RPQ, where PQR and RPQ are internal angles.

From the hypothesis, we have:

m∠QRS =(10x−12)∘(10x−12)

m∠PQR = (3x+20)∘(3x+20)

m∠RPQ=(3x−8)∘(3x−8)

Using the first equation and replacing the hypothesis:

m∠QRS = m∠PQR + m∠RPQ

(10x−12)∘(10x−12) = (3x+20)∘(3x+20) + (3x−8)∘(3x−8)

Multiplying and applying the remarkable identity:

Then, we use a calculator to find the roots, which are:

In this case, we will see what root is the right one.

Now, we replace it into m∠QRS =(10x−12)∘(10x−12), because we need to find m∠QRS.

m∠QRS =(10x−12)∘(10x−12) = (10(4.7) - 12) (10(4.7) - 12) = (35) (35) = 1225

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

if you are doing deltamath

Answer:

m∠ADC = 132°

Step-by-step explanation:

From the figure attached,

By applying sine rule in ΔABD,

[tex]\frac{\text{sin}(\angle ABD)}{\text{AD}}=\frac{\text{sin}(\angle ADB)}{AB}[/tex]

[tex]\frac{\text{sin}(120)}{35}=\frac{\text{sin}(\angle ADB)}{30}[/tex]

sin(∠ADB) = [tex]\frac{30\text{sin}(120)}{35}[/tex]

                 = 0.74231

m∠ADB = [tex]\text{sin}^{-1}(0.74231)[/tex]

             = 47.92°

             ≈ 48°

m∠ADC + m∠ADB = 180° [Linear pair of angles]

m∠ADC + 48° = 180°

m∠ADC = 180° - 48°

m∠ADC = 132°

Answer: c

Step-by-step explanation:

Answer:

The answer is C

Step-by-step explanation:

Step-by-step explanation:

The formula of a circumference of a circle with radius r:

[tex]C=2\pi r[/tex]

Solve for r:

[tex]2\pi r=C[/tex]     subtitute  [tex]\pi\approx\dfrac{22}{7}[/tex]

[tex]2\cdot\dfrac{22}{7}r=C[/tex]

[tex]\dfrac{44}{7}r=C[/tex]       multiply both sides by 7

[tex]44r=7C[/tex]      divide both sides by 44

[tex]r=\dfrac{7C}{44}[/tex]

Substitute the values of the circumference from your question:

[tex]i.\ C=88cm\\\\r=\dfrac{7\cdot88}{44}=\dfrac{7\cdot2}{1}=12(cm)\\\\=================[/tex]

[tex]ii.\ C=1.4m\\\\r=\dfrac{7\cdot1.4}{44}=\dfrac{9.8}{44}=\dfrac{98}{440}=\dfrac{49}{220}(m)\\\\====================[/tex]

[tex]iii.\ C=16m\\\\r=\dfrac{7\cdot16}{44}=\dfrac{7\cdot4}{11}=\dfrac{28}{11}(m)\\\\=================[/tex]

[tex]iv.\ C=33ft\\\\r=\dfrac{7\cdot33}{44}=\dfrac{7\cdot3}{4}=\dfrac{21}{4}(ft)\\\\=================[/tex]

[tex]v.\ C=5m\\\\r=\dfrac{7\cdot5}{44}=\dfrac{35}{44}(m)\\\\===============[/tex]

[tex]vi.\ C=66m\\\\r=\dfrac{7\cdot66}{44}=\dfrac{7\cdot3}{2}=\dfrac{21}{2}(m)\\\\================[/tex]

Answer:

-7

Step-by-step explanation:

y because i know so

Answer:

Cost = Rs. 6095.95

Step-by-step explanation:

We are given the perimeter as 440m.

Mow,perimeter of a circle is also called circumference.

Formula for circumference of a circle is;

C = 2πR

Thus:

2πR = 440

R = 440/2π

R = 70 m

We are told that A path 1.4m runs inside the park. Thus radius of smaller circle: r = 70 - 1.4 = 68.6 m

Area of larger circle: A1 = πR² = π(70²)

A1 = 4900π

Area of smaller circle: A2 = πr² = π(68.6²)

A2 = 4705.96π

Area of path = A1 - A2

Area of path = 4900π - 4705.96π

Area of path = 194.04π Sq.m

We want to find the cost of gravelling the path at the rate of Rs.100 per square meter.

Thus;

Cost = 100 × 194.04π

Cost = Rs. 6095.95

Answer:

C

Step-by-step explanation:

Trust me on this one

9514 1404 393

Answer:

  Marion is 24, Judy is 12

Step-by-step explanation:

Let j represent Judy's age now. 6 year ago, the relation was ...

  3(j -6) = (2j) -6

  3j -18 = 2j -6 . . . . . eliminate parentheses

  j = 12 . . . . . . . . . . . add 18-2j

  2j = 24 . . . . . . . . . Marion's age now

Judy is 12; Marion is 24.