Solve for t in 2^t²- t= 4​

Answers

Answer 1

Answer:

t= -1/2 ,t=4

Step-by-step explanation:

2t^2- t -4 =0

2t^2 - 8t+t -4=0

(we have to find the factor here. I have used The Product Sum method of factorization)

2t( t-4) + 1( t-4)=0

(2t+1) (t-4)=0

t= -1/2 ,t=4


Related Questions

When converted to a household measurement, 9 kilograms is approximately equal to a) 9000 grams. b) 9000 ounces. c) 19.8 ounces. d) 19.8 pounds.

Answers

Answer:

a) 9000 gam

Step-by-step explanation:

Answer:

a) 9000 grams

Step-by-step explanation:

1 kg=1000 g

9*1000=9000

There are 5 roses and 6 daisies in a vase.

Answers

Answer:

11 flowers

Step-by-step explanation:

Find the difference and express your answer in scientific notation.
(8.9 x 10^-6) - (6.7 x 10^-8)
Difference:

Answers

12 jasjjsisiaiaiiiiiiiiiiii it’s wrong oops

How much greater is [tex]8.9*10^8[/tex] than [tex]1.6*10^6[/tex]? Express your answer using either standard notation or scientific notation.

[tex]8.9*10^8 - 1.6*10^6[/tex]

[tex]890,000,000-1,600,000[/tex]    Convert to standard notation

[tex]888,400,000[/tex]    Standard Notation

[tex]8.884*10^8[/tex]     Scientific Notation

Evaluate the expression. −3(−15−2(−9))2 What is the value of the expression? Enter your answer in the box.

Answers

-3(-15-2(-9))2= -3(-15+18)2= -3(3)2= (-9)2= -18

please mark this answer as brainlist

The value of the numerical expression −3[−15 − 2(−9)]² will be negative 27.

What is the value of the expression?

When the relevant factors and natural laws of a mathematical model are given values, the outcome of the calculation it describes is the expression's outcome.

The expression is given below.

⇒ −3[−15 − 2(−9)]²

Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction are all part of the PEMDAS formula. To answer the problem properly and accurately, this rule must be followed.

⇒ −3[−15 − 2(−9)]²

⇒ −3[−15 + 18]²

⇒ −3[3]²

⇒ −3 × 9

⇒ −27

The value of the numerical expression −3[−15 − 2(−9)]² will be negative 27.

More about the value of the expression link is given below.

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There was 5/8 of a pie in the fridge. Daniel ate 1/4 leftover. How much of a pie did he have

Answers

Answer:

Therefore, 15 / 32 of the pie is left in the fridge.

Please help will mark brainliest PLZZZZZZzzz

Answers

Answer:

see explanation

Step-by-step explanation:

The reciprocal of a number n is [tex]\frac{1}{n}[/tex]

(a)

1 [tex]\frac{6}{7}[/tex] ← change to an improper fraction

= [tex]\frac{13}{7}[/tex]

Then its reciprocal is [tex]\frac{1}{\frac{13}{7} }[/tex] = [tex]\frac{7}{13}[/tex]

(b)

The reciprocal of [tex]\frac{7}{13}[/tex] is [tex]\frac{1}{\frac{7}{13} }[/tex] = [tex]\frac{13}{7}[/tex] = 1 [tex]\frac{6}{7}[/tex]

(c)

Each is the reciprocal of the other

Which equations are correct?

Select each correct answer.




6a^5(6a^5)=36a^25

6b^4(−3b^4)=−18b^8

5x^4(4x^2)=20x^6

3z^7(4z^2)=12z^9

Answers

6a^5(6a^5)=36a^25 Answer

Whats 1 and 2
true
false
true/false

Answers

Answer:false true

Step-by-step explanation:

A coat usually sells for $62.95. It is on sale for 10% off.
What is the sale price?

Answers

Answer:

Hii, okay so the sale price is $56.66, Hope this helps

Step-by-step explanation:

1. If the measures of two angles of a triangle are 19° and 80°, find the measure of the third angle.​

Answers

19+80=180

99=180

180_99

81

Check all solutions to the equation. If there are no solutions, check 'None."
x2=-4

Answers

Answer:

-2 is the only answer

Step-by-step explanation:

You know the answer can't be a positive number because a positive multiplied by a positive is a positive number. It is not 0 because 0 X anything is 0. -16 x 16 is way to high. But, -2 x 2 = -4

There are no real solutions

Option F is correct.

What is an imaginary number?

An imaginary number is a number that, when squared, has a negative result. Essentially, an imaginary number is the square root of a negative number and does not have a tangible value.

Given equation

[tex]x^{2} =-4[/tex]

Apply square root on both sides of the equation

[tex]\sqrt{x^{2} } =\sqrt{-4}[/tex]

[tex]x=2i[/tex]

2i is imaginary number.

There are no real solutions

Hence, Option F is correct.

Find out more information about imaginary solution here

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Compute and simplify.
17/1/12/29

Answers

Answer:

0.049

Step-by-step explanation:

17÷1=17

17÷12=1.42

1.42÷29=0.049

An ice cream factory makes 170 quarts of ice cream in 5 hours. How many
quarts could be made in 36 hours? What was that rate per day?

Answers

The amount of quarts which will be made in 36 hours and the production rate per day is :

1224 quarts on 36 hours 816 quarts in a day

Given the Parameters :

Time taken to make 170 quarts = 36 hours

Number of quarts made in 36 hours using the proportional relationship :

170 = 5

p = 36

Cross multiply :

5p = 170 × 36

5p = 6120

p = 6120 / 5

p = 1224 quarts

The production rate per day :

Number of hours in a day = 24 hours

170 = 5

p = 24

Cross multiply

5p = 170 × 24

5p = 4080

p = 4080/5

p = 816

Therefore, the production rate per day is 816 quarts

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A notice of use and disclosure is required for a) patients whose personal health information the doctor intends to disclose. b) every patient a doctor treats. c) patients treated for sensitive conditions, such as substance abuse or mental illness. new patients, but not established patients.
heelp me pls pls

Answers

Answer:

b

Step-by-step explanation:

EVALUATE THE FUNCTION REQUESTED. WRITE YOUR ANSWER AS A FRACTION IN LOWEST TERMS
I WILL GIVE BRAINLIEST I NEED THIS ANSWER ASAPP!

Answers

Answer:

• From trigonometry ratios:

[tex]{ \boxed{ \rm{ \sin(A) = \frac{opposite}{hypotenuse} }}} \\ [/tex]

opposite → 28hypotenuse → 35

[tex]{ \rm{ \sin(A) = \frac{28}{35} }} \\ \\ { \boxed{ \boxed{ \rm{ \: \sin(A) = \frac{4}{5} \: }}}}[/tex]

1111111111111111111111111111111111111111111111freepoints

Answers

Answer:

thank youuuuuu

Step-by-step explanation:

Answer:

thank

Step-by-step explanation:

Plato!!! Please help ~_~
Type the correct answer in the box. If necessary, use / for the fraction bar.
A solid wooden block in the shape of a rectangular prism has a length, width, and height of 3/8 centimeter, 1/8 centimeter, and 5/8 centimeter,
respectively,

The volume of the block is (——)
cubic centimeter.
The number of cubic wooden blocks with a side length of 1/8 centimeter that can be cut
from the rectangular block is(—)

Answer goes in the (—)

Answers

Answer:

V = 3/8 * 1/8 * 5/8 cm^3 = 15 / 512 cm^3

Since all sides are evenly divisible by 1/8 and v = (1 / 8)^3 = 1 / 512 cm^3

N = V / v = (15 / 512) / (1 / 512) = 15 blocks

Example: cut 1/8 by 5/8 into 5 blocks

Cutting 1/8 by 5/8 could be done 3 times for a total  of 15 blocj\ks

what is 5+6? Show your work

Answers

Answer:

11

Step-by-step explanation:

2+2+1(5)+3+3(6) =11

WILL GIVE BRAINLIEST, EXTRA POINTS, THANK YOU, AND STARS!!!

Answers

Answer:

162kph (i think, sorry if im wrong)

Which means 486km in 3 hours....

Step-by-step explanation:

Hope this helps!

-3/5-2/10= para ahorita plsss

Answers

Answer:

-0.8     GL HEHHEHHEHEHEHEHEHEHEHHEHEHEHHEHEH

en un triangulo rectangulo abc rectos en b a) hallar el angulo a si c=2a b) hallar el angulo en c se a=4b+10

Answers

answer

The side

b

is

4√2

unit.

Explanation:

in right triangle

C=900,a=2,c=6c

is

the side opposite to the right angle, so it is hypotenuse,

a

and

b

are the adjacent sides of the right angle .

We know in right triangle

,a2+b2=

c2∴22+b2=62

or

b2=36−4=32∴

b=√32

or

b=4√2

unit. The side

b is 4√2

unit [Ans]

A 26 ft ladder leaning against a wall begins to slide. How fast is the top of the ladder sliding down the wall at the instant of time when the bottom of the ladder is 10 ft from the wall and sliding away from the wall at the rate of 3 ft/sec?

Answers

Answer:

The top of the ladder is sliding down at a rate of -1.25 ft/s.

Step-by-step explanation:

From the Pythagorean Theorem:

[tex]\displaystyle a^2 + b^2 = c^2[/tex]

(Where a is the height, b is the distance between the bottom of the ladder and the wall, and c is the length of the ladder itself.)

Note that the hypotenuse c is a constant value at 26 feet. Substitute:

[tex]\displaystyle a^2 + b^2 = (26\text{ ft})^2 = 676 \text{ ft}^2[/tex]

We want to determine how fast the top of the ladder is sliding down the wall at the instant of time when the bottom of the ladder is 10 feet from the wall and sliding away from the wall at the rate of 3 ft/s.

In other words, we want to find da/dt given that b = 10 ft, and db/dt = 3 ft/s.

First, we can differentiate both sides with respect to t, where a and b are both functions of t:

[tex]\displaystyle \frac{d}{dt}\left[ a^2 + b^2\right ] = \frac{d}{dt}\left [ 676 \text{ feet}^2\right ][/tex]

Implicit differentiation yields:

[tex]\displaystyle 2a \frac{da}{dt} + 2b \frac{db}{dt} = 0[/tex]

Next, since we know that b = 10 ft, we can find a:

[tex]\displaystyle \begin{aligned} a^2 + b^2 & = 676\text{ ft}^2 \\ \\ a^2 +(10 \text{ ft})^2 & = 676\text{ ft}^2 \\ \\ a & = 24\text{ ft} \end{aligned}[/tex]

Substitute and solve for da/dt:

[tex]\displaystyle \begin{aligned} 2a \frac{da}{dt} + 2b\frac{db}{dt} & = 0 \\ \\ 2(24 \text{ ft}) \frac{da}{dt} + 2(10 \text{ ft})(3 \text{ ft/s}) & = 0 \\ \\ 48 \text{ ft} \cdot \frac{da}{dt} & = -60 \text{ ft$^2$/s} \\ \\ \frac{da}{dt} & = -1.25 \text{ ft/s} \end{aligned}[/tex]

Since the ladder is sliding down the wall, da/dt is expected to be negative.

In conclusion, the top of the ladder is sliding down at a rate of -1.25 ft/s.

7. What is the value of z in the solution to the systems of linear equations shown below?
-x+ 2y + 2z= -4
4x +y-3z=13
x- 5y +z = -23

Answers

Step-by-step explanation:

[tex]1) \: \: - x + 2y + 2z = - 4 \\ 2z = - 4 + x - 2y \\ z = \frac{ - 4 + x - 2y}{2} \\ \\ 2) \: \: 4x + y - 3z = 13 \\ - 3z = 13 - 4x - y \\ z = \frac{13 - 4x - y}{ - 3} \\ \\ 3) \: \: x - 5y + z = - 23 \\ z = - 23 - x + 5y \\ [/tex]

#11 help please !!!!!!!

Answers

Answer:

Step-by-step explanation:

300/100 = 3 = 1%

if 3 = 1% then 3/2 or 1.5 = 0.5%

5 x 3 = 15 = 5%

15 + 1.5 = 16.5 = 5.5%

Martha Stewart has developed a new perfume. She decides to test its side effects by spraying the perfume in 31 randomly chosen houses. She records the level of antigens that create an allergic response. If the antigen level is high enough, the person will go into anaphylactic shock. The mean of her sample is a lot bigger than the median, but Martha hopes that a 90% confidence interval will contain zero. Her confidence interval is (0.116, 1.884). Disappointed, she offers you $144 to find an acceptable, realistic way to change the confidence interval to contain zero. What could you say to earn the money

Answers

The acceptable and realistic ways to to change the confidence interval to contain zero are;

Martha should decrease x-bar by providing medicine to treat shock to the perfume users.Decrease sample size than 30Increase the confidence level, till the interval contains zero

Reasons:

The confidence interval is given by the following formula;

[tex]CI=\bar{x}\pm t_{\alpha/2} \cdot \dfrac{s}{\sqrt{n}}[/tex]

When the mean, [tex]\overline x[/tex], is positive and large, both values, [tex]\bar{x}+ t_{\alpha/2} \cdot \dfrac{s}{\sqrt{n}}[/tex], and [tex]\bar{x} -t_{\alpha/2} \cdot \dfrac{s}{\sqrt{n}}[/tex], will be positive.

Therefore, Martha has to either intervene to reduce the mean also known as x-bar

Increasing the confidence level will increase the allowable error such that [tex]\bar{x} < t_{\alpha/2} \cdot \dfrac{s}{\sqrt{n}}[/tex], and the interval will contain zero

Therefore;

Martha should decrease x-bar, [tex]\overline x[/tex], by providing medicine to treat shock to the perfume usersUse a much smaller sample size, n, such that [tex]t_{\alpha/2} \cdot \dfrac{s}{\sqrt{n}} > \bar{x}[/tex]

Increase the confidence level to 95% or 99%, thereby increasing the error bound

Learn more here:

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What is the lcm of the numbers below will give you brainleist

Answers

i took this exam and the answer is c.25,200

how do you prove that vertical angles are ⩭

Answers

Answer:

congruent

Step-by-step explanation:

If two angles are vertical angles, then they're congruent

hope it helps

mark me brainliest

If a pair pf shoe is was discounted from an original price of 5,000 to 2800 what is the percent discount

Answers

44% discount

(2200 is 44% of 5000)

Find the difference 701 and 413

Answers

Answer:

I believe its 288 I might be wrong but it's worth a shot

What kind of fraction is 14/6

Answers

It is an Improper fraction

Yes, It is an improper fraction

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