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
andreyandreev [35.5K]
3 years ago
15

#6.

Mathematics
1 answer:
Kamila [148]3 years ago
7 0

Answer:

x = 2

Step-by-step explanation:

Since the triangles are similar then corresponding sides are in proportion, that is

\frac{AB}{DE} = \frac{BC}{EF} , substitute values

\frac{7x}{7} = \frac{4}{x} ( cross- multiply )

7x² = 28 ( divide both sides by 7 )

x² = 4 ( take square root of both sides )

x = \sqrt{4} = 2

You might be interested in
Mars is extremely far from the Earth. Scientists estimate that it could take astronauts 245​​​​​​​ days to travel from Earth to
Ksivusya [100]

Answer:

Step-by-step explanation:

We would liken the given scenario to distance speed and time relationship. The formula for determining average speed is

Total Distance/ total time

Since the distance between Earth and Mars is 108 million miles(108 × 10^6) the trip takes 245 days, then on average, the number of miles that the astronauts would travel each day would be

108 × 10^6/245 = 440816 miles per day

Writing in powers of 10, it becomes 4.4 × 10^5 miles per day

Rounding to the nearest whole number, it becomes 4 × 10^5 miles per day

3 0
2 years ago
4xsquared 12x 10 is less than or equal to 0 (or what multiplies to get 40 and adds to get 12)
g100num [7]
It either x=5 or x=-2 not sure which on 

5 0
2 years ago
When a certain valve is open, 281 gallons go through it in one hour. The number of gallons that would go through in 94 hours is?
yarga [219]
281 gallons/ 60 min= 4.683 gallon per min
4.683 gallon per min * 94 hours= 440.23 gallons

Answer: 440.23 Gallons
8 0
2 years ago
WILL MARK BRAINIEST
PIT_PIT [208]

Answer:

Read this,it should help!

The standard form of a quadratic function is y = ax 2 + bx + c. where a, b and c are real numbers, and a ≠ 0. Using Vertex Form to Derive Standard Form. Write the vertex form of a quadratic function. y = a(x - h) 2 + k. Square the binomial. y = a(x 2 - 2xh + h 2) + k. y = ax 2 - 2ahx + ah 2 + k

4 0
3 years ago
Read 2 more answers
1. Find the midpoint of AB<br> given A(-3, -4) and B(1,6)
emmainna [20.7K]

Answer:

-1,1

Step-by-step explanation:

because if you plot the points that is half.

7 0
3 years ago
Other questions:
  • manny plans to save 1/12 of his salary each week. if his salary is$375, find the amount he will save each week
    10·2 answers
  • Which property is used in the first step to solve this equation?
    11·1 answer
  • What are the solutions of the equation c​
    7·1 answer
  • Elisa withdrew $20 at a time from hermano account and withdrew a total of $140. Francis withdrew $45 at a time from his bank acc
    11·1 answer
  • Please help!!
    6·2 answers
  • VOCABULARY
    12·1 answer
  • Solve for x
    11·1 answer
  • Help me pls! PLS PLS PLS I NEED IT<br><br>20 points<br>options are x, x^9, x^4, and x^6
    9·1 answer
  • What angles are Adjacent to angle 4 below?​
    12·2 answers
  • Unknown angle problems (with ale<br> Solve for I in the diagrarn below.<br> (24 + 45)<br> f<br> TE
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!