For what value of p, (-4) is a zero of the polynomial x2 – 2x - (7p+3)

Answers

Answer 1

Answer:

p = 3

Step-by-step explanation:

Given that x = - 4 is a zero then p(- 4) = 0, that is

p(x) = x² - 2x - (7p + 3), then

(- 4)² - 2(- 4) - 7p - 3 = 0, that is

16 + 8 - 7p - 3 = 0

21 - 7p = 0 ( subtract 21 from both sides )

- 7p = - 21 ( divide both sides by - 7 )

p = 3


Related Questions

answer the following this is reading!!

Answers

Answer:

A I assume

Step-by-step explanation:

I was between A and D ( The first one and the last) but I think a makes more sense

calculate the surface area of each solid
with explanation ​

Answers

Answer:

602.88

Step-by-step explanation:

The two lids

Area = pi * r^2

d = 12

r = d/2

r = 12/2

r = 6 cm

Area = 3.14 * 6^2

Area = 3.14 * 36

Area =  113.04

Both Lids =                                           226.08

Cylinder Body

Circumference =  2*pi*r*h

Circumference = 2*3.14 *6 * 10           376.8

Total Area =                                         602.88

Find C. Leave your answer in simplified radical form.

Answers

9514 1404 393

Answer:

  7√2

Step-by-step explanation:

The triangle is a "special triangle", an isosceles right triangle. The side lengths of this triangle have the ratios 1 : 1 : √2. Multiplying these ratio values by 7, the length of the leg, you find ...

  c = 7×√2

  c = 7√2

_____

If you like, you can go through the Pythagorean theorem and/or trigonometry to find the same thing.

  7/c = sin(45°)

  c = 7/sin(45°) = 7/(1/√2) = 7√2

Or ...

  c² = 7² + 7² = 98 . . . . using the Pythagorean theorem*

  c = √98 = 7√2

__

* This requires you recognize the triangle is isosceles, so the other leg is also 7. Of course, you know that as soon as you see a 45° acute angle in a right triangle.

Please help due in 5 minutes !

Answers

It’s 8:1 hope this help

One inch equals 2.54cm.A ribbon 100in.long is how many cmlong?​

Answers

Answer:

fesgqwa

Step-by-step explanation:

Answer:

254 cm

Step-by-step explanation:

multiply the 100 by the 2.54

What is the solution of the system of equations?
x + 3y= -4
3x + 9y = –12
A. (-1,-1)
B. no solution
C. infinely many solutions
D. (1,3)

Answers

The answer for your question is B. There is no way of solving this that would come out to a full answer of just a number.

In 2011, a professional climber scaled the outside of the Burj Khalifa, making it all the way to 828 meters (the highest point on which a person can stand) in 6 hours.

Answers

Answer:

276 meters in the first 2 hours

Step-by-step explanation:

Given that,

Professional climbers climb 828 meters in 6 hours.

Let us assume we need to find how far did they climb in the first 2 hours.

6 hours = 828 m

⇒ 1 hour = 138 m

So, in 2 hours,

2 hours = 138 × 2 m

= 276 m

So, the climber climb 276 meters in the first 2 hours

Salma is going to build a large wooden box. The box will be in the shape of a rectangular prism.... check photos,
40 points.

Answers

Answer:

162

Step-by-step explanation:

7x3 is 21 21x6 is 126

that’s the area

we don’t need it lol

7x3 is 21

7x6 is 42

3x 6 is 18

all of these together plus 2 make 162

PLEASE HELP PLEASEEE!!!!

Answers

In first diameter=8,In second diameter=2/3,

What things are important to keep in mind when you are trying to find a sample to use for data collection?

Answers

Answer:

Keep you  mind straight.

Step-by-step explanation:

Whats the answer to this i can't figure it out can someone help.

Answers

Answer:

D!

Step-by-step explanation:

TRUST ME :) SINCE IT'S A RIGHT ANGLE YOU DO 90 DEGREES MINUS THE NUMBER IT GIVES, 38 TO GET 52. THEN YOU DIVIDE 52 BY 2 BECAUSE THERE'S OLP AND NLO :))) you get 26 after that. I hope I helped!

PLEASE HELP ASAP!! DUE SOONNN PLEASE SHOW THE STEPS ILL GIVE BRAINLIEST HELPPP

question: turn the following system of equations into slope intercept form. (y=mx+b)

5x - 2y = -10
3x + 6y = 66

Answers

Answer:

y = 5/2x + 5

y = -1/2x + 11

Step-by-step explanation:

5x -2y = -10

-2y = - 5x -10

y = 5/2x + 5

3x + 6y = 66

6y = -3x + 66

y = -1/2x + 11

what is the answer for this question ?:A set of multiples of 5 less than 30​

Answers

Answer:

A = {5,10,15,20,25}

Step-by-step explanation:

A class used cars and vans to go on a field trip because all of the buses were already in use. They Used 10 vehicles to go on the trip. Each car holds 5 students and each van holds 13 students. If 82 students went on the trip, then how many of each type of vehicle did the class use?

Answers

Answer:

4 vans, 6 cars

Step-by-step explanation:

6 cars , 4 vans hope it helped

Which one is the correct answer please please.

Answers

Answer:

option 1

plz mark as brainiest

Step-by-step explanation:

Answer:

1/2 (option 1)

Step-by-step explanation:

the equation is in y=mx+b form (slope-intercept form)

y: y-axis

m: slope

x: variable

b: y-intercept

Points a and b both on line y=3x+7 work out the missing y coordinate for a and the missing x coordinate for b

Answers

Answer:

Missing [tex]y[/tex] coordinate for [tex]a[/tex] is [tex]3x+7[/tex]

Missing [tex]x[/tex] coordinate for [tex]b[/tex] is [tex]\frac{b-7}{3}[/tex]

Step-by-step explanation:

Given: Equation of a line is [tex]y=3x+7[/tex]

To find: missing [tex]y[/tex] coordinate for [tex]a[/tex] and the missing [tex]x[/tex] coordinate for [tex]b[/tex]

Solution:

First find missing [tex]y[/tex] coordinate for [tex]a[/tex]

Put [tex]x=a[/tex] in [tex]y=3x+7[/tex]

[tex]y=3(a)+7=3a+7[/tex]

Now find the missing [tex]x[/tex] coordinate for [tex]b[/tex]

Put [tex]y=b[/tex] in [tex]y=3x+7[/tex]

[tex]b=3x+7\\3x=b-7\\\\x=\frac{b-7}{3}[/tex]

Amanda bought tickets for a concert for $218. Jamie bought tickets to the same concert but paid 14% less than Amanda. What were the price of Jamie's tickets?

Answers

Answer:

Jamie's tickets = $187.48

Step-by-step explanation:

The amount for which Amanda bought tickets = $218

Jamie bought tickets to the same concert but paid 14% less than Amanda.

Jamie's tickets = [tex]218-14\%\ of\ 218[/tex]

We can solve it as follows :

[tex]218-14\%\ of\ 218=218-\dfrac{14}{100}\times 218\\\\=218-30.52\\\\=\$187.48[/tex]

So, the price of Jamie's tickets is $187.48.

Someone please help me?

Answers

Answer:

Option 2 (open circle at 6 with arrow going to the right.

Step-by-step explanation:

Open circle means "excluding that number". Since x>6, x cannot be 6 so we have an open circle at 6. x>6 also means x has to be greater than 6, so we have the arrow going to the right since 7 is greater than 6, 8 is greater than 6, and so on so forth.

Marcus purchased 4 1/2 pounds of rice on Monday and 2 1/3 pounds of rice on Tuesday, What was the total weight, in pounds, of rice purchased by Marcus in the two-day period?
A. 6 1/6
B. 6 2/5
C. 6 1/3
D. 6 5/6
E. 7 5/6​

Answers

Answer:

he would have bought 6 5/6 pounds of rice.

Step-by-step explanation:

4 1/2 + 2 1/3 = ?

First, you want to get common dominaters. And the closest number is 6

4 3/6 + 2 2/6 = 6 5/6

This can not be simplifyed so that would be your answer.

The total weight, in pounds, of rice purchased by Marcus in the two-day period is [tex]6\frac{5}{6}[/tex] pounds.

Addition of fraction:

It is given that,

Amount of rice purchased on Monday = [tex]4\frac{1}{2} pounds[/tex]

Amount of rice purchased on Tuesday[tex]=2\frac{1}{3} pounds[/tex]

the total weight, in pounds, of rice purchased by Marcus in the two-day period is computed as;

                            [tex]=4\frac{1}{2}+2\frac{1}{3} \\\\=\frac{9}{2} +\frac{7}{3} \\\\=\frac{27+14}{6} \\\\=\frac{41}{6}\\ \\=6\frac{5}{6} pounds[/tex]

Therefore, the total weight of rice is [tex]6\frac{5}{6}[/tex] pounds.

Learn more about the fraction here:

https://brainly.com/question/78672

Leila bought lunch at school. She had a sandwich and a shake that cost her $8. Her shake cost
$3.75. Solve the equation 8 =s +3.75 to find the cost of Leila's sandwich, s.

Answers

Answer: I think that the sandwich is $4.25 (I'm not sure)

Answer:

s=4.25

Step-by-step explanation:

look at the screenshot for the steps! :)

*HELP ASAP*
The total length of two ships is 2341 feet. The difference in their lengths is 13 feet.
a. Find the length of each ship.
b. If a football field has a length of 100 yards, determine the length of the longer ship in terms of football fields.

Answers

3 feet in a yard

2341/3= 780.333

100 yards per field

780.333/100

Answer: 7 football fields and 80 yards
7 8/10 football fields (improper fraction)

Answer:

The smaller ship is 1,164 ft

The larger ship is 1,177 ft

The larger ship is 3.923 football fields

Step-by-step explanation:

A. Find the length of each ship

x + x + 13 = 2,341 ft

2x + 13 = 2,341 ft

2x = 2,328 ft

x = 2,328/2

x = 1,164 ft ( This is the length of the smaller ship)

1,164 + 13 = 1,177 ft (length of the larger ship)

B)If a football field has a length of 100 yards, determine the length of the longer ship in terms of football fields.

1,177/3ft= 392.3 yards

392.3 yards /100 yards = 3.923 football fields

4,688÷87
pls Answer in steps

Answers

Answer:

53.88 or [54.0]

Step-by-step explanation:

53.88 or 53.8 i think x


AB is parallel to DC.
AB = 5p DC = p DA = 2q-p
a) Find CB in terms of q and p.
Simplify your answer.
CB = 3p + 29
b) Pis the midpoint of AD.
AQ: QB = 2:3
Show that PQ is parallel to CB.
Please help im stuck on this questionnn

Answers

Answer:

PA = Q - 0.5

AQ = 2P

PQ = 1.5P + Q

CB = 3P + 2Q

LINES CB AND PQ ARE SCALAR MULTIPLES

Step-by-step explanation:

7th grade and 30 points
i have to show work

Answers

Answer:

Step-by-step explanation:

amount of discount = $10

percentage discount = $10/$39.99 ≅ 0.25 = 25%

amount of sales tax = $1.95

sales tax rate = $1.95/$29.99 ≅ 0.065 = 6.5%

cost of jeans × 1.60 = $39.99

cost of jeans = $39.99/1.60 ≅ $24.99

discounted selling price = $29.99

markup = $29.99/$24.99 ≅ 1.20 = 20%

Which of the following occurs within the solution process for sqrt 3(5x-2)- sqrt 3 (4x) = 0 asquaring both sides once
squaring both sides twice
cubing both sides once
cubing both sides twice

Answers

Answer:

C

Step-by-step explanation:

cubing both sides once

Answer:

C is correct

Step-by-step explanation:

Jus did it on EDGE!!!!

how to do this ques (x+1)² - 4x​

Answers

I think you have to times x and 1 with 2 and thay answer add them then minus that with 4x
X^2+2X+1-4X

X^2-2X+1

Assuming equation equals zero


Factor

(X-1) (X-1)

X=1

Help me plzzz!!! ASAP

Answers

Answer:

6.0

Step-by-step explanation:

use demos.com it gives you the answers for these type of problems. just put in the equation and boom

Need help pls I’m begging u

Answers

Answer:

D (last one), [tex]x^2+y^2=45[/tex]

Step-by-step explanation:

We need to find the distance between (0,0) and (-3,6). Using the distance formula we get:

[tex]d=\sqrt{\left(x_2-x_1\right)^2+\left(y_2-y_1\right)^2}[/tex]

[tex]d=\sqrt{\left(-3-0\right)^2+\left(6-0\right)^2}[/tex]

[tex]d=3\sqrt{5}[/tex]

Since equation of circle is: [tex]x^2+y^2=r^2[/tex] we have to square the distance we just found, which gives us 45.

Answer:

x^2 + y^2 = 45

Step-by-step explanation:

(x − a ) ^2 + ( y − b ) ^2 =r^2

= (-3-0)^(2)+(6-0)^(2)

=45

I need help please help me

Answers

Answer:

8×3x - 8×y

Step-by-step explanation:

24x-8y this is the answer

PLS HELP BRAINLIEST !!!! BE SERIOUS PLS

dont want to report anyone :((

Answers

I say the answer would be No because the triangles are not the same Width, length or height..

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