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
mamaluj [8]
2 years ago
9

Please help asap!!!! (BRAINILIST TO THE FIRST PERSON TO ANSWER AND HAVE IT RIGHT!!!!!)

Mathematics
2 answers:
makkiz [27]2 years ago
8 0

Answer:

a??

Step-by-step explanation:

him pretty sure its a, cause ur dividing the bigger number by the smaller number, and 21/4 is just a simplified version of 5 1/4. sorry if its incorrect, im not very smart,, good luck though!!! i hope you pass your test

zubka84 [21]2 years ago
6 0

Answer:

21/4 / 7/8

Step-by-step explanation:

5 1/4=21/4

Hope this helps

You might be interested in
The expression below is a sum of cubes. 125x3 + 169
diamong [38]
125x^3 = (5x)^3
125x^3 is the cube of 5x.

169 = 13^2
169 is the square of 13, but not the cube of a rational number.

The statement is false.

7 0
3 years ago
Read 2 more answers
How do I find x?? It’s in french by the way.
DENIUS [597]

Answer:

The answer is 108

Step-by-step explanation:

The angle is obtuse and the only obtuse answer is 108.

5 0
3 years ago
Read 2 more answers
ABC and EDC are straight lines. EA is parallel to DB. EC = 8.1 cm. DC = 5.4 cm. DB = 2.6 cm. (a) Work out the length of AE. cm (
harkovskaia [24]

By applying the knowledge of similar triangles, the lengths of AE and AB are:

a. \mathbf{AE = 3.9 $ cm}\\\\

b. \mathbf{AB = 2.05 $ cm} \\\\

<em>See the image in the attachment for the referred diagram.</em>

<em />

  • The two triangles, triangle AEC and triangle BDC are similar triangles.
  • Therefore, the ratio of the corresponding sides of triangles AEC and BDC will be the same.

<em>This implies that</em>:

  • AC/BC = EC/DC = AE/DB

<em><u>Given:</u></em>

EC = 8.1 $ cm\\\\DC = 5.4 $ cm\\\\DB = 2.6 cm\\\\AC = 6.15 $ cm

<u>a. </u><u>Find the length of </u><u>AE</u><u>:</u>

EC/DC = AE/DB

  • Plug in the values

\frac{8.1}{5.4} = \frac{AE}{2.6}

  • Cross multiply

5.4 \times AE = 8.1 \times 2.6\\\\5.4 \times AE = 21.06

  • Divide both sides by 5.4

AE = \frac{21.06}{5.4} = 3.9 $ cm

<u>b. </u><u>Find the length of </u><u>AB:</u>

AB = AC - BC

AC = 6.15 cm

To find BC, use AC/BC = EC/DC.

  • Plug in the values

\frac{6.15}{BC} = \frac{8.1}{5.4}

  • Cross multiply

BC \times 8.1 = 6.15 \times 5.4\\\\BC = \frac{6.15 \times 5.4}{8.1} \\\\BC = 4.1

  • Thus:

AB = AC - BC

  • Substitute

AB = 6.15 - 4.1\\\\AB = 2.05 $ cm

Therefore, by applying the knowledge of similar triangles, the lengths of AE and AB are:

a. \mathbf{AE = 3.9 $ cm}\\\\

b. \mathbf{AB = 2.05 $ cm} \\\\

Learn more here:

brainly.com/question/14327552

3 0
2 years ago
A company rents water tanks shaped like cylinders. Each tank has a radius of 3 feet and a height of 2 feet. The cost is $4 per c
vivado [14]

Answer:

Cost to rent one tank=226.08 Dollars

Step-by-step explanation:

Radius of the cylindrical tank=3 feet

Height of the tank= 2 feet

Cost to rent one tank= Volume of one tank * cost to rent one cubic feet of volume

Volume of the cylindrical tank:

                                         =\pi r^2

As,  \pi =\frac{22}{7}=3.14

Putting the values in the formula:

Volume of the tank:

                                    =3.14*(3*3)*2\\\\=3.14*9*2\\\\=3.14*18\\\\=56.52feet^3

Cost to rent one cubic feet= 4 Dollars

Cost to rent 56.52 Cubic feet of one tank;

   = 4*56.52

=226.08 Dollars

5 0
3 years ago
Please help please and thank you
Katyanochek1 [597]

Step-by-step explanation:

\text{We know:}\\\\\sin(-\alpha)=-\sin\alpha\\\\\sin(\alpha\pm k\cdot360^o)=\sin\alpha\\\\===============================\\\\\sin(360^o-\theta)=\sin\bigg(-(\theta-360^o)\bigg)=-\sin(\theta-360^o)=-\sin\theta

3 0
2 years ago
Other questions:
  • A survey of adults who typically work full-time from home recorded their current education levels. The results were Degree 37 So
    7·1 answer
  • A base angle of an isosceles triangle measures 30, and the length of one of the legs is 12. What is the length of the altitude d
    10·1 answer
  • 28. Simplify the following expression: 10 (2 + 3) - 8x3<br> D a) 126<br> Ob) 74<br> d) 18<br> c) 26
    6·1 answer
  • A recipe calls for 3 pints of milk, but you only have a 1-cup measuring cup. How many cups do you have to fill in order to get a
    5·1 answer
  • Using a_n=a_1r^{n-1}, what is the 10th term in this geometric sequence? <img src="https://tex.z-dn.net/?f=0.2%2C1%2C5%2C25%2C125
    8·1 answer
  • One angle of a right triangle measures 19∘. What is the measure of the other angle?
    5·1 answer
  • What is the slope of a line parallel to the line who se equation is 6x -3y= 63
    11·1 answer
  • 2(q–8)&lt; – 10 solve for q
    12·1 answer
  • N<br> What is the range of the function f(x) = -2(6") + 3?
    9·1 answer
  • What is x equal for x-2/3 = -6
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!