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
Georgia [21]
3 years ago
9

A square has a side length of 10cm. Work out the length of a diagonal of the square.​

Mathematics
2 answers:
GarryVolchara [31]3 years ago
8 0

d=√2

a=√2.10 ≈14.14214cm

=14.14cm

Vitek1552 [10]3 years ago
5 0

Answer: Let x = the length of a side of the square

a2 + b2 = c2

x2 + x2 = 102

2x2 = 100

x2 = 50

x = √50

x = 5√2 cm

Step-by-step explanation:

You might be interested in
Calculate the unit rate<br> Frosted Flakes 14 oz for $1.80
Vanyuwa [196]

Answer:

The unit rate is 13 cents per ounce.

Step-by-step explanation:

Given that:

Weight of Frosted Flakes = 14 oz

Cost of Frosted Flakes = $1.80

Unit rate = Cost / Weight

Unit rate = 1.80 / 14

Unit rate = $0.13 per ounce

Or the rate can also be written in terms of cents.

Unit rate = 13 cents per ounce

Hence,

The unit rate is 13 cents per ounce.

8 0
3 years ago
Two scientists are running experiments on the same type of bacteria in different control groups. The results are shown in the gr
Usimov [2.4K]

Answer:

d

Step-by-step explanation:

7 0
3 years ago
Employees from A and company B receive annual bonuses. What information would you need to test the claim that the difference in
lyudmila [28]

Answer:

1. The required information are

The average annual bonuses, \bar {x}_1 received by employees from company A

The average annual bonuses, \bar {x}_2 received by employees from company B

The standard deviation, σ₁, of the average annual bonuses for employees from company A

The standard deviation, σ₂, of the average annual bonuses for employees from company A

The number of employees in company A, n₁

The number of employees in company B, n₂

2. The null hypothesis is H₀: \bar {x}_1 - \bar {x}_2 ≤ 100

The alternative hypothesis is Hₐ: \bar {x}_1 - \bar {x}_2 > 100

Step-by-step explanation:

1. The required information are

The average annual bonuses, \bar {x}_1 received by employees from company A

The average annual bonuses, \bar {x}_2 received by employees from company B

The standard deviation, σ₁, of the average annual bonuses for employees from company A

The standard deviation, σ₂, of the average annual bonuses for employees from company A

The number of employees in company A, n₁

The number of employees in company B, n₂

2. The null hypothesis is H₀: \bar {x}_1 - \bar {x}_2 ≤ 100

The alternative hypothesis is Hₐ: \bar {x}_1 - \bar {x}_2 > 100

The z value for the hypothesis testing of the difference between two means is given as follows;

z=\dfrac{(\bar{x}_{1}-\bar{x}_{2})}{\sqrt{\frac{\sigma_{1}^{2} }{n_{1}}-\frac{\sigma _{2}^{2}}{n_{2}}}}

At 0.5 level of significance, the critical z_\alpha = ± 0

The rejection region is z > z_\alpha and z < -z_\alpha

Therefore, the value of z obtained from the relation above more than or less than 0, we reject the null hypothesis, and we fail to reject the alternative hypothesis.

7 0
3 years ago
Cindy had 18 cats and 4 dogs, and 2 sheep at her family farm. What percentage of her animals are dogs and sheep?
denpristay [2]

Answer:

25%

Step-by-step explanation:

FIrst, take the total of all the animals. Then add the number of dogs and sheep together. Divide the number of dogs and sheep by the total number of animals. Then multiply by 100 to get the answer in percent form.

Brainliest please

Happy holidays

7 0
3 years ago
What level does macroeconomic focus on
Lubov Fominskaja [6]
In macroeconomics, a variety of economy-wide phenomena is thoroughly examined such as, inflation, price levels, rate of growth, national income, gross domestic product and changes in unemployment.( It focuses on trends in the economy and how the economy moves as a whole)
7 0
3 years ago
Other questions:
  • Six and nineteen hundredths in expanded form
    6·2 answers
  • Evelyn bought 8.4 gallons of gas for $23.94. Which equation can be used to determine the price of each gallon of gas? 8.4x = 23.
    15·2 answers
  • Slove 3x+9=2x+24<br> must show work!
    11·1 answer
  • Let y = safe load in pounds and x = length in feet of a horizontal beam. A constant of proportionality k exists such that y=k/x
    14·1 answer
  • Yori has 14.25 cups of cupcake batter. If each cupcake uses 0.75 cup of batter, how many cupcakes can Yori make?
    15·1 answer
  • I will give brainliest!
    6·1 answer
  • 48 is 214% of what number ?
    9·1 answer
  • Factorise fully 18e^2f^3-12e^2f
    5·1 answer
  • Add. 6 5/6 +(-6 1/5) Enter your answer as a simplified fraction in the box.​
    8·1 answer
  • A+5/-4=-3<br> Please help this due tomorrow
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!