If it is 14 degrees outside and the
tempature will drop 22 degrees in the next ten hours how cold will it get

Answer:

Step-by-step explanation:

If k is any integer then 2k is even number and 2k+1 is odd number.

The next odd number to 2k+1 would be: 2k+1+2=2k+3

the sum is 104 so:

2k+1 + 2k+3 = 104

4k + 4 = 104

4k = 100

k = 25

2k+1 = 2•25+1 = 51

2k+3 = 2•25+3 = 53

Check:

51 + 53 = 104

Answer:

(3x +   7) (x +  1 )

Step-by-step explanation:

3x^2+10x+7

first : 3x² is 3x*x

(3x       ) (x        )

the sign of the constant is positive so it is either (plus *plus or minus*minus)

since the sign of the middle is plus (+10x) and 7 is prime number so it has to be (7*1)

(3x +   7) (x +  1 )

check : multiply 3x(x+1)    and 7(x+1)

3x*x +3x*1

          7*x    +1*7

____________________ add

3x²+ 10x   +7   (correct)

Answer:

3x^2 + 10x + 7

1. 3x^2 + 3x + 7x +7

2. 3x(x +1) 7(x+1)

3. (3x + 7)(x+1)

Step-by-step explanation:

- to factor by grouping, you need an even amount of terms, so to do this you have to split up the middle term, 10x, into two terms. (see step 2)

-to get these numbers, you multiply the coefficents of the first and second term, in this case it would be 3 and 7. When you multiply 3 and 7, you get 21, then you want to find 2 numbers that multiply to 21, but also add up to 10. In this case, it is 7 and 3 again. but it won't always be the originial numbers.  ( see step 1)

-then you look at the first two terms, and pull out the common factor, in this case it is 3, you then see what is left over and put it in the parenthesis.

- repeat this again for the second two terms, in this case it is 7. (see step 2)

- you know you have done it right when the numbers in the parenthesis are the same, if they aren't you did it wrong. (see step 2)

- then take the set of numbers in the parenthesis, and the two numbers you are multiplying by, in this case 3x and 7, and those are your factors. (see step 3)

Answer: 20.442 seconds

Step-by-step explanation:

From the question, we are informed that Amy ran a race in 20.7 seconds and that Katie finished the race 0.258 second before Amy.

To know how long it took Katie to run the race, we subtract 0.258 seconds from 20.7 seconds. This will be:

= 20.7 - 0.258

= 20.442 seconds

Answer:

(-1,5)

Step-by-step explanation:

(2+(-4))/2=-1

(9+1)/2=5

Answer: natural; whole; integer; rational; real

Step-by-step explanation:

16/4=4

Natural: numbers that are greater than 0.

4 is greater than 0

Whole: numbers that are equal or greater than 0

4 is equal or greater than 0

Integer: numbers that have no decimal points

4 has no decimal points

Rational: numbers that can be written as fraction

4=16/4 which is fraction

It is already rational, so it will not be irrational.

Real: all number you can name are real number

4 is four

The function h(x) has a maximum at 4,the vertix is 4,3

Answer:

5.0587

Step-by-step explanation:

First, you have to count to the fourth number after the decimal;

That number is 7, the number after it is the one that will help you round.

Since that number is 0 you round down to 7.

Answer:

5.0587

Step-by-step explanation:

So we look at 5.05870

we count to four after the decimal place and land on the seven, next we look at the digit behind to seven to determine if we can round (remember 5 or more round the score, four or less let it rest).

Answer:

100 minutes

Step-by-step explanation:

Sprints = $39.99 +&0.45

Verizon= $44.99+$0.40

Step 1: Equate the values

[tex]39.99 + 0.45m = 44.99 + 0.40m[/tex]

Step 2 :Collect like terms and simplify

[tex]0.45m - 0.40m = 44.99 - 39.99 \\ 0.05m = 5[/tex]

Step 3 :Divide both sides of the equation by 0.05

[tex] \frac{0.05m}{0.05} = \frac{5}{0.05} [/tex]

Step 4 :Simplify

[tex]m = 100 \\ = 100 \: minutes[/tex]

Answer:

129 divided by 12

Step-by-step explanation:

itll get the amount of feet

Answer:

a) (-3/2,0), (0,-10)

Step-by-step explanation:

y = mx + b

Change the equation to y intercept form.

-3x - 2y = 20

Isolate -2y by adding 3x on both sides.

-2y = 3x +20

Divide everything by -2

y = [tex]-\frac{3}{2}x[/tex] - 10

If you have a ti 84 plus calculator put it in the calculator:

go to y =

then press 2nd graph

then press graph

you will be at the (x,y) table  

look at what (x,y) value match your choices.

Another way to solve this equation is to substitute.

a) is the correct choice

Step-by-step explanation:

tan30° = Height of person / (Distance away from river bank + river's width) = 1/√3.

Therefore 1.6m / (2m + x) = 1/√3

By cross multiplication, 1.6√3 = 2 + x.

Hence, x ≈ 0.77m.

Answer:

width  = 11, len = 19

Step-by-step explanation:

length = 2w - 3

l = length

w = width

2(length) + 2(width) = perimeter

2(2w - 3) + 2(w) = 60

6w -6 =60

w = 11

len = 2(11) - 3

The length of the rectangle is 19 inches and the width is 11 inches

The perimeter of a rectangle is given as 2(l+w)

Now

Given that the Perimeter is 60 inches

Let the width be w

So that the Length is 2w -3

Putting the values into the equation , we have

Perimeter = 2(l+w)

Perimeter =2L + 2w  

Putting the values

Perimeter =2(2w -3) + 2w

Perimeter =4w -6 + 2w

60=6w-6

60+6=6w

66=6w

w  =66/6  =11inches

Since the width is 11 inches,

The length will be  2w -3 = (2x11)-3=19 inches

See similar question here:https://brainly.com/question/17865272

Answer:

3. x = 17

4. a. m<NMP = 48°

b. m<NMP = 60°

Step-by-step explanation:

3. Given that <BAM = right angle, and

m<BAM = 4x + 22, set 90° equal to 4x + 22 to find x.

4x + 22 = 90

Subtract 22 from both sides

4x + 22 - 22 = 90 - 22

4x = 68

Divide both sides by 4

4x/4 = 68/4

x = 17

4. a. m<NMQ = right angle (given)

m<PMQ = 42° (given)

m<PMQ + m<NMP = m<NMQ (angle addition postulate)

42 + m<NMP = 90 (substitution)

m<NMP = 90 - 42 (subtracting 42 from each side)

m<NMP = 48°

b. m<NMQ = right angle (given)

m<NMP = 2*m<PMQ

Let m<PMQ = x

m<NMP = 2*x = 2x

2x + x = 90° (Angle addition postulate)

3x = 90

x = 30 (dividing both sides by 3)

m<PMQ = x = 30°

m<NMP = 2*m<PMQ = 2*30

m<NMP = 60°

Answer:

$4.47

Step-by-step explanation:

Price if 1 pound of bananas=$1.49

Price if 3 pounds of bananas=3x$1.49

=$4.47

Answer: B

Step-by-step explanation:

Answer:

8n - 14 = 4n + 3 is the equation

and

n = 4.25

Step-by-step explanation:

hope this helped a little bit :))

Hey there! I'm happy to help!

In a mixed number, we keep the whole number the same.

For the decimal, we have .38 which is 38/100.

We can simplify this by dividing the numerator and denominator by 2, giving us 19/50.

We combine the whole number and fraction, giving us -40 19/50.

Have a wonderful day! :D

Answer:

Between 6-7

Step-by-step explanation:

The square root of 47 is in-between 6 (36) and 7 (49), and is closer to 7 than to 6.

*Formatting is a little off, so apologies if this isn't the exact answer you're looking for

Answer:173/10

Step-by-step explanation:

Answer:

x= 17.3

Step-by-step explanation:

-10(x-17) = -3                 equation

-10x + 170 = -3             multiply -10 to everything in parenthesis

-10x = -173                   subtract 170 from both sides of the equation

[tex]\frac{-10x}{-10} =\frac{-173}{-10}[/tex]                  divide -10 from both sides

x= 17.3

Answer:

7[tex]x^{5}[/tex] + 18x³ + 8x

Step-by-step explanation:

Each term in the second factor is multiplied by each term in the first factor, that is

7x³(x² + 2) + 4x(x² + 2) ← distribute both parenthesis

= 7[tex]x^{5}[/tex] + 14x³ + 4x³ + 8x ← collect like terms

= 7[tex]x^{5}[/tex] + 18x³ + 8x

Answer:

f^-1 (x) = x/2 - 1

ps the ^ means to the power of so its f to the power of -1.

hope it helps!!

Answer:

the b

Step-by-step explanation:

Answer:

x = 3, y = 150

k = y/x

k = 150/3 = 50

y = 50x....when  x = 4.3

y = 50(4.3) = 215 tons of steel

Answer:

The value of x is 12.

Step-by-step explanation:

Given that perimeter is found when all sides are added together. So we can assume that all side lengths add together will give you 134 imches :

[tex]x + 2x + 5 + 6x - 17 + 3x + 2 = 134[/tex]

[tex]12x - 10 = 134[/tex]

[tex]12x = 134 + 10[/tex]

[tex]12x = 144[/tex]

[tex]x = 144 \div 12[/tex]

[tex]x = 12[/tex]

Answer:

X=12

Step-by-step explanation:

x+2x+5+6x-17+3x+2=134

12x-10=134

12x=144

x=12

Answer:

4

Step-by-step explanation:

edg and i got it right

For the number of hours greater than or equal to 5.4,  it would take for a worker in this factory to reach 100% of her daily noise exposure.

inequality : An inequality is used to make unequal comparisons between two expressions or numbers.

expression : A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.

equation : A mathematical equation is used to equate two expressions.

Given is that the inequality (94 – 3 log2x ≤ 88) describes noise exposure level (in decibels) in terms of the number of hours {x} it takes to reach 100% of a person’s recommended daily noise dose.

The given inequality is -

94 – 3 log(2x) ≤ 88

94 - 88 ≤ 3 log(2x)

6 ≤ 3 log(2x)

log(2x) ≥ 2

log(2) + log(x) ≥ 2

log(x) ≥ 2 - log(2)

log(x) ≥ (2 - 0.31)

log(x) ≥ 1.69

x ≥ 5.41

Therefore, for the number of hours greater than or equal to 5.4,  it would take for a worker in this factory to reach 100% of her daily noise exposure.

To solve more questions on inequality, visit the link below -

https://brainly.com/question/14610360

#SPJ2

Answer:

-30%

Step-by-step explanation:

currently, the perimeter is: 4 + 6 + 4 + 6 = 20 in.

when the width of 4 in is decreased by 3 in, the new width become (4-3) in = 1 in

therefore, the new perimeter is: 1 + 6 + 1 + 6 = 14 in

the change in perimeter is: 20 in - 14 in = 6 in

now, the percent of change in perimeter will be:

[tex]\frac{change- in -perimeter}{original -perimeter} *100 = \frac{6}{20}*100 = 30[/tex]%

BUT because this change is a DECREASE, you have to put a NEGATIVE sign before the value to inducate that it's a decrease, so

change in perimeter = -30%

[tex]\text {Hi! Let's Solve this Equation!}[/tex]

[tex]\text {The First Step is to Simplify the Equation:}[/tex]

[tex]\text {3 becomes 3x. 3*-2=-6 so that becomes -6.}[/tex]

[tex]\text {Add: -6+4=-2}[/tex]

[tex]\text {Your new Problem should be: 3x+-6+4=2x-1}[/tex]

[tex]\text {The Next Step is to Subtract 2x:}[/tex]

[tex]\text {3x-2-2x=2x-1-2x}\\\text {x-2=-1}[/tex]

[tex]\text {The Final Step is to Add 2:}[/tex]

[tex]\text {x-2+2=-1+2}[/tex]

[tex]\text {Your Answer should be:}[/tex]

[tex]\fbox {x=1}[/tex]

[tex]\text {Best of Luck!}[/tex]

[tex]\text {-LimitedX}[/tex]

Answer:

- 1

Step-by-step explanation:

Step 1:

3 ( x - 2 ) + 4 = 2x - 1        Equation

Step 2:

3x - 6 + 4 = 2x - 1      Multiply

Step 3:

3x - 2 = 2x - 1     Combine Like Terms

Step 4:

3x = 2x - 1 + 2   Add 2 on both sides

Step 5:

3x = 2x - 1    Combine Like Terms

Step 6:

x = - 1     Subract 2x on both sides

Answer:

x = - 1

Hope This Helps :)