1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ainat [17]
3 years ago
15

Sarah's sister has two summer jobs. The first job pays her $11 per hour. The second job pays her $14 per hour. In one month, she

works 23 hours at the first job and 18 hours at the second job.
How much money did Sarah's sister earn that month?

Enter your answer in the box.

$
Mathematics
1 answer:
telo118 [61]3 years ago
3 0
$505 . 11 times 23 =253 . 14 times 18=252. When you add them you get $505
You might be interested in
The triangle below is isosceles (two congruent sides). Find the value for x. one side say x + 3.8 and the other says 16 and then
Ugo [173]
The <span>isosceles triangle has two congruent sides

Their lengths are (</span> x + 3.8 ) and  <span>16

Equate them :

x+3.8=16


Solve for x:
3=16-3.8=12.2
</span>
4 0
3 years ago
4. Which of the following represents a function?
Dafna11 [192]
The 3 option
(3,9), (-7,1), (6,12), (-3, -9)
3 0
2 years ago
Using the foil method, multiply the terms of the binomials below. Show your work in the blanks provided. Then, add any like term
aalyn [17]

Answer:

5x^4+7x^3-6x^2

Step-by-step explanation:

(x^{2} +2x)(5x^{2} -3x)\\\= 5x^{4}-3x^{3} +10x^{3}  -6x^{2}\\= 5x^{4}+7x^{3} -6x^{2}

7 0
2 years ago
Which is the simplified form of the expression ((2 Superscript negative 2 Baseline) (3 Superscript 4 Baseline)) Superscript nega
AlekseyPX

Answer:

The option "StartFraction 1 Over 3 Superscript 8" is correct

That is \frac{1}{3^8} is correct answer

Therefore [(2^{-2})(3^4)]^{-3}\times [(2^{-3})(3^2)]^2=\frac{1}{3^8}

Step-by-step explanation:

Given expression is ((2 Superscript negative 2 Baseline) (3 Superscript 4 Baseline)) Superscript negative 3 Baseline times ((2 Superscript negative 3 Baseline) (3 squared)) squared

The given expression can be written as

[(2^{-2})(3^4)]^{-3}\times [(2^{-3})(3^2)]^2

To find the simplified form of the given expression :

[(2^{-2})(3^4)]^{-3}\times [(2^{-3})(3^2)]^2

=(2^{-2})^{-3}(3^4)^{-3}\times (2^{-3})^2(3^2)^2 ( using the property (ab)^m=a^m.b^m )

=(2^6)(3^{-12})\times (2^{-6})(3^4) ( using the property (a^m)^n=a^{mn}

=(2^6)(2^{-6})(3^{-12})(3^4) ( combining the like powers )

=2^{6-6}3^{-12+4} ( using the property a^m.a^n=a^{m+n} )

=2^03^{-8}

=\frac{1}{3^8} ( using the property a^{-m}=\frac{1}{a^m} )

Therefore [(2^{-2})(3^4)]^{-3}\times [(2^{-3})(3^2)]^2=\frac{1}{3^8}

Therefore option "StartFraction 1 Over 3 Superscript 8" is correct

That is \frac{1}{3^8} is correct answer

6 0
3 years ago
Read 2 more answers
Duck #1 lays eggs whose weights are normally distributed with a mean of 70gramsand a standard deviation of 6 grams.Duck #2 lays
Genrish500 [490]

Answer:

26.11% probability that Duck #2’s egg weighs more than Duck #1’s egg

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

If an egg is randomly chosen from each duck, what is the probability that Duck #2’s egg weighs more than Duck #1’s egg?

Duck #2 egg will weigh more if the subtraction of duck's 2 egg by duck's 1 egg is larger than 0.

When we subtract normal distributions, the mean is the subtraction of the means. So

\mu = 65 - 70 = -5

The standard deviation is the square root of the sum of the variances. So

\sigma = \sqrt{6^2+5^2} = \sqrt{61} = 7.81

Now, we have to find 1 subtracted by the pvalue of Z when X = 0. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{0 - (-5)}{7.81}

Z = 0.64

Z = 0.64 has a pvalue of 0.7389

1 - 0.7389 = 0.2611

26.11% probability that Duck #2’s egg weighs more than Duck #1’s egg

4 0
3 years ago
Other questions:
  • Graph the hyperbola with equation (x+1)^2/9-(y-4)^2/25= 1
    13·1 answer
  • If your front lawn is 24.0 feet wide and 20.0 feet long, and each square foot of lawn accumulates 1050 new snow flakes every min
    8·1 answer
  • How do you solve this and what is the answer
    8·1 answer
  • Prove the quotient rule. hint: you can do this directly, but it may be easier to find the derivative of 1/x and then use the cha
    5·1 answer
  • What is the product of 76.3 and 58
    6·1 answer
  • Graph the line y=−3x+b if it is known that the graph goes through point:<br> B(5, 2)
    7·1 answer
  • I'm studying for a test and I need help with percentages I don't understand it at all. for example A pair of shoes was $56 and i
    6·1 answer
  • Need help ASAP please give answer in cm squared
    8·1 answer
  • Sarah is saving to buy a new phone. She needs $150, and she has already saved $63. Write an equation to model this situation. Le
    9·2 answers
  • Write the following numbers in order of size start with the smallest. 0.32 0.4 0.35 0.309
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!