Mathematics College

Solve 47-x^2=-2 plz I will give Brainlyest plz do lol

Answers

Answer 1

answer and explanation are in the picture.

Solve 47-x^2=-2 Plz I Will Give Brainlyest Plz Do Lol

Answer 2

47-x^2=-2 the answer is 7

Related Questions

An electronics hobbyist has three electronic parts cabinets with two drawers each.
One cabinet has NPN transistors in each drawer, while a second cabinet has PNP transistors in each drawer. The third cabinet has NPN transistors in one drawer and PNP transistors in the other drawer. The hobbyist selects one cabinet at random and withdraws a transistor from one of the drawers.
a) What is the probability that an NPN transistor will be selected?
b) Given that the hobbyist selects an NPN transistor, what is the probability that it came from the cabinet that contains both types?
c) Given that an NPN transistor is selected what is the probability that it comes from the cabinet that contains only NPN transistors?

Answers

Answer:

a) 0.5 = 50% probability that an NPN transistor will be selected.

b) 0.3333 = 33.33% probability that it came from the cabinet that contains both types

c) 66.67% probability that it comes from the cabinet that contains only NPN transistors

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)}[/tex]

In which

P(B|A) is the probability of event B happening, given that A happened.

[tex]P(A \cap B)[/tex] is the probability of both A and B happening.

P(A) is the probability of A happening.

a) What is the probability that an NPN transistor will be selected?

1/3 probability that the first cabinet is chosen. This cabinet has two transistors, both of which are NPN, so 100% probability of selecting a NPN transistor.

1/3 probability that the second cabinet is chosen. This cabinet has two transistors, both of which are PNP, so 0% probability of selecting a NPN transistor.

1/3 probability that the second cabinet is chosen. This cabinet has two transistors, one of which is NPN, so 50% probability of selecting a NPN transistor.

[tex]p = \frac{1}{3}*1 + \frac{1}{3}*0 + \frac{1}{3}*0.5 = \frac{1}{3} + \frac{1}{6} = \frac{2}{6} + \frac{1}{6} = \frac{3}{6} = 0.5[/tex]

0.5 = 50% probability that an NPN transistor will be selected.

b) Given that the hobbyist selects an NPN transistor, what is the probability that it came from the cabinet that contains both types?

Here we use the conditional probability formula.

Event A: NPN transistor

Event B: From the third cabinet.

50% probability that an NPN transistor will be selected, so [tex]P(A) = 0.5[/tex].

1/6 probability that it is from the third cabinet and NPN, so [tex]P(A \cap B) = \frac{1}{6}[/tex]

The desired probability is:

[tex]P(B|A) = \frac{\frac{1}{6}}{0.5} = 0.3333[/tex]

0.3333 = 33.33% probability that it came from the cabinet that contains both types.

c) Given that an NPN transistor is selected what is the probability that it comes from the cabinet that contains only NPN transistors?

Either it comes from the cabinet with only NPN transistors, or it comes from the cabinet with both types of transistors. The sum of the probabilities of these outcomes is 100%. So

x + 33.33 = 100

x = 66.67

66.67% probability that it comes from the cabinet that contains only NPN transistors

Hello, happy Friday, I am just here with some geometry questions.

Please only answer this if you know the answer. If you have a comment, please add it to the comment box. Only answer the question if you can explain your answer and why you think it is accurate. Thanks, good luck!

Like normal, explain your answer and work.

Answers

Answer:

A. AB/BC = FE/ED

Step-by-step explanation:

Parallel lines divide the transversals proportionally.

Correct choice is A only, the other options concern the parallel lines themselves:

A. AB/BC = FE/ED

The angles of a triangle add up to 180 degrees.

The second angle is 20 degrees larger than the smallest angle.

The third angle is 3 times as big as the smallest angle.

Find the measure of the smallest angle (in degrees)

Answers

Answer: 32 degrees

Step-by-step explanation:

small angle : x

middle angle: x + 20

large angle: 3x

Form an equation: 5x + 20 = 180

5x = 180 - 20

5x = 160

x = 160/5

x = 32

Help help this is 10 points

Answers

Answer:

The anwser you are looking for is number 2

Step-by-step explanation:

Solve m+7=8
What dose m =

Answers

1 bru just making this up bend

i need help with this down below

Answers

Answer:

hi the answer is elven twelths or 11/12

Step-by-step explanation:

first you multiply 1/8 x 2/3 which is 1/12 +5/6= 11/ 12. because you cant simplify it anymore

hope this help

an electric wire which is 0.12 m long is cut into 3 pieces of the same length.How long is each pieces?

Answers

Answer:

0.04m

Step-by-step explanation:

0.12/3=0.04

Answer:

Step-by-step explanation:

Total length of a wire = 0.12 m

If the wire is divided into 3 equal pieces then

Length of each piece

= 0.12 / 3

= 0.04 m

hope it helps :)

Paisley has an action figure collection. She keeps 72 of the action figures on her wall,
which is 45% of her entire collection. What is the total number of action figures in
Paisley's collection?
Answer pls I will mark brainliest

Answers

Answer:

160

Step-by-step explanation:

Which of the following states the conditions that the graph meets?
OX2
Ox22
Oys2
Oy22

Answers

B is correct
I just took it

Camille has already baked 1 cake, and she can bake 2 cakes with each additional stick of butter she buys. Write an equation that shows the relationship between the number of additional sticks of butter and the number of cakes y

Answers

Answer:

1+2x=y

Step-by-step explanation:

X: Number of sticks

Y= number of cakes

There is already one cake, so you must add one to the equation. You multiply x by two since 1 stick of butter (x) makes two cakes.

Solve 15 < 4x on a number line

Answers

Answer:

that shall answer 15 < 4x on a number line

Step-by-step explanation:

view image for more clarity

please look at the photo below or above

Answers

Answer:

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

Step-by-step explanation:

Given

[tex]Number = \frac{4}{5}[/tex]

Required

Determine its opposite

To get the opposite of a number, we simply subtract it from 0.

So, we have:

[tex]Opposite =0 - \frac{4}{5}[/tex]

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

Hence, the opposite is -4/5

9(2+2p) show distributive property

Answers

Answer:

9(2+2p)

9 x2 + 9 x 2p

18 +18p

Write the word sentences as an equation. Then solve the equation.

13 subtract from a number w is 15

An equation that represent this word sentences is ?

The solution is w = ?

Answers

the equation would be w-13=15

w=28

Find the value of x in the following parallelogram: 3 5x - 6 3x-2 x = [?] Enter

Answers

Answer:

Step-by-step explanation:

Answer: x=2

Step-by-step explanation:

Find the missing side lengths. Leave your answers as radicals in simplest form
30°
X
10V3
y

Answers

Answer:

x=20

y=10

Step-by-step explanation:

so as you can see this is a 30-60-90 triangle this means that y is opposite the 30 degree angle so it is 10 root three divided by root three so it is ten and x is 2y=20

help me please I need this done I've been stuck on it for a while!

Answers

Answer:

Step-by-step explanation:

5 * 2^2*5 + 2^4

5^2*2^2+2^4

answer is B

m∠FDC=124°; m∠EAB=2x, m∠ACG=4x. Find: x, m∠ACD

Answers

Answer:

x=28 degrees

Step-by-step explanation:

4x = 28*4 = 112

180 degrees - 112 = 68

ACD = 68

Help need to do this in 10 min

List the integers that satisfy both these inequalities.
2x + 5 < 0
x>-8

Answers

Answer:

no satisfied

Step-by-step explanation:

because of the rules

estimate the product of 26.4×2.7

Answers

Answer:..

Step-by-step explanation:

Answer:

Step-by-step explanation:

okay, 26.4*2.7 = 26*3 (when estimated)

26*3=78(or just somewhere around 70)

help me plis What is the exact measurement of the line segment? A. B. C. D.

Answers

Answer: where is the line segment

Step-by-step explanation:

Answer:

Step-by-step explanation:

All I want to know is the formula and I will do the rest...pls someone help me with the formula...

Answers

Hey in this type of questions there's no formula, you need to use your logic.

#Note that the full degree or a triangle is 180°

#The L in triangle is 90°

I see that you want to try to do it by yourself, i will give you the tips. to get the <BAD

#since <DAC is 90°, The ADB is 90° (180°-90°)

<BAD = 180° - 90° - 25° = 65°

Now, try to find <BCA yourself.

Tell me if you give up, i will tell you lol.

3. An exponential expression is point
considered in its simplest form
when the following are met
EXCEPT one, which is it? *
O A. No parentheses appear.
B. No powers are raised to powers.
O c No positive exponents appear
.
O D. Each base occurs only once.

Answers

Answer: C Powers doesn't have to be negative for it to be simplified example 3^5 is simplified we don't need it to be (1/3)^(-5), its simply unnecessary.

The answer is c no positive exponits

Hello pls help me with two of these questions;)

Answers

Answer:

1-A-15

2-C

Step-by-step explanation:

7-21 is an increase by 3 times, so 5*3=15

The second is kinda blurry, so it's a little hard to explain.

the three angles of a triangle are in the ratio 1:3:5 find the angles

Answers

Answer:

The ratio 1:3:5 by doubling each number is the same as 2:6:10 and the big one 10 is 10/(2+6+10) = 10/18 of the total, so multiplying top and bottom by 10 gives 100/180, so the biggest angle is 100° since the sum of all angles must be 180°.

PLEASE HELP SOLVE THIS WUESTION SOLVE FOR y

Answers

Answer:

y = 5

Step-by-step explanation:

12^2 + y = 13^ 2

144 + y = 169

169 - 144 = 25

sqrt of 25 = 5

y = 5

Answer:

A, y=5

Step-by-step explanation:

I just did it right now

I need help with this

Answers

Answer:

5√2

Step-by-step explanation:

With reference angle 45°

perpendicular (p) = 5

hypotenuse (h) = x

sin 45 ° = p / h

1/√2 = 5 / x

x = 5√2

Juan and his sister collected 108 shells while at the beach. Of the shells they collected, 79 were white. Write and solve an equation that can be used to find how many white shells Juan and his sister collected.

Answers

Answer:

108-79=29

Step-by-step explanation:

Answer:

it literally says that 79 of dem were white lol

Step-by-step explanation:

Fill in the missing values:
a) 17 out of 85 = ? %
b) ? out of 90 = 17%
c) 1026 out of ? = 54%
d) 8.1% of 90 = ?
e) ? % of 50 = 90
f) 88% of ? = 154

Answers

a. 20%

b. 15.3

c. 1900

d. 7.29

e. 180

f. 175

Way to do

a. 17 out of 85 how many percentage?

17/85 × 100 = 20%

b. what is 17% of 90?

? /90 × 100 = 17? /90 = 17 : 100? /90 = 0.17? = 90 × 0.17 ? = 15.3

c. 1026 out of ? = 54%

1026/? × 100 = 541026/? = 0.54? = 1026 : 0.54? = 1900

d. 8.1% of 90 = ?

90 × 8.1/100 = 7.29

e. ?% of 50 = 90

50 × ?/100 = 90?/100 = 90:50?/100 = 9/5? = 9/5 × 100? = 180

f. 88% of ? = 154

? × 88/100 = 154? = 154 : 88/100? = 175

For moderators who see this

#Moderators please don't be mean, dont delete my answers just for approval from your senior or just to get the biggest moderation daily rank. This answer is long, how can you just instanly delete it? :(

A person is walking at a rate of 9 feet every 4 seconds.
(b) Given the rate in (a), how far would this
person travel in 14 seconds

Answers

Answer:

31.5 feet

Step-by-step explanation:

2.25 feet every second

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