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
Fudgin [204]
3 years ago
6

The base of a triangle is 7 cm greater than the height. the area is 60 cm squared. find the height and base of the triangle.

Mathematics
2 answers:
tino4ka555 [31]3 years ago
8 0
Base=x+7 Height=x Area=60. 60=((x+7)(x))/2----->60=(x^2+7x)/2

120=x^2+7x X^2+7X-120=0. QUDRATIC FORMULA: -7+/- SQRT(49+480)/2

(-7+/-23)/2... 8 and -15. -15 ISNT the answer because you cant have a negative length. X=8 Base=8+7---->15 Height=8
Julli [10]3 years ago
4 0
Let height be x and the base will be x+7

so 1/2×b×h=60
= x(x+7)=120
x^2+7x-120=o
so...
solving the eqn .... x=8

therefore height =8 and base = 15 !
You might be interested in
The bear was chosen
cestrela7 [59]

Answer:

it was chosen 9 more times

Step-by-step explanation: i had this on my quiz

6 0
3 years ago
Noah has drawn two triangle △MNO and △M'N'O' on the coordinate plane as shown below. (the image I pasted)
Ber [7]

Answer:

  choice C is correct

Step-by-step explanation:

The clockwise sequence of vertices MNO is the opposite of the counterclockwise sequence of vertices M'N'O', so it seems some sort of reflection is involved.

Length NO is 3 times length N'O', but length NM is only 7/3 times length N'M', so the figures are <em>not similar</em>. (The ratios of side lengths must be the same for the figures to be similar.)

___

Choice D includes only rigid transformations that would ensure congruence. Similar figures may also differ by a dilation factor, so C is the better choice.

4 0
3 years ago
10. Find the measure of angles S and T."
juin [17]

Answer:

S

,

то каково значение

5

m

+

10

(

m

−

1

)Если

m

=

−

3

,

то каково значение

5

m

+

10

(

m

−

1

)VVVЕсли

m

=

−

3

,

то каково значение

5

m

+

10

(

m

−

1

)Если

m

=

−

3

,

то каково значение

5

m

+

10

(

m

−

1

)Если

m

=

−

3

,

то каково значение

5

m

+

10

(

m

−

1

)

6 0
3 years ago
Which type of study best describes the following research most likely to be done? A teacher wants to know how fast all her stude
Yakvenalex [24]

Census

_____________________________________

<em>*100% CORRECT ANSWERS</em>

Question 1

Which type of study best describes the following research most likely to be done?

A researcher is testing out a brand new type of safety suit for fires and is trying to test the maximum threshold of the suit.

Simulation Study  

Question 2

Which type of study best describes the following research most likely to be done?

A test is being conducted on a new medicine that is supposed to heal cuts faster. One group is given the actual medicine in a gel type of ointment to apply to the cuts. The second group is given just regular Vaseline that looks like the medicine but has not benefit to put on the cut. The results are then compared.  

Experimental Study  

Question 3

Which type of study best describes the following research most likely to be done?

A researcher is wanting to research the after effects of plant growth after a nuclear reactor meltdown and decides to study plants within a 50 mile radius of the  power plant that had a catastrophic melt down in 2011.  

Observational Study  

Question 4

Which type of study best describes the following research most likely to be done?

A study is being conducted by an insurance actuary and he wants to determine how often American teen drivers that are on the honor roll get into wrecks.  

Sampling  

Question 5

Which type of study best describes the following research most likely to be done?

A teacher wants to know how fast all her students for a particular period can complete a multiplication quiz to check their mental math abilities. So, all of her students are tested on a computer and the time of each and every student is recorded.  

Census

6 0
3 years ago
What is the circumfrenice of a diamiter of 7 inches
KIM [24]

Answer:

22 in

Step-by-step explanation:

<u>circumference of a circle = 2 π r</u>

where radius (r) = 7/2 in. = 3.5 in

C = 2 π (3.5)

   = 22 in

6 0
3 years ago
Read 2 more answers
Other questions:
  • Pls help 100 points, fast as possible
    10·2 answers
  • What values of x satisfy the inequality 4x &lt;3a + x
    9·1 answer
  • Michelle found a new violin on sale at 30% off. how much would she pay the cashier if it originally sells for $250 in a city tha
    15·1 answer
  • Square root of 324x^4
    12·1 answer
  • How do you write 2x-3y=-15 In slope intercept form?
    11·2 answers
  • How do you do the slope intercept form to P(3,5);y=4
    9·1 answer
  • a ceramic bowl weighs 340 grams when empty. it is then filled with sugar. one tablespoon of sugar weighs 12.5 grams. write an eq
    11·1 answer
  • Someone please helppp!!!
    15·1 answer
  • Find the area of the trapezoid<br><br> A. 168 in^2<br> B. 94.5 ft^2 <br> C. 72 ft^2<br> D. 84 ft^2
    7·1 answer
  • Tracy can jump rope 26 times in<br> 1 minute. How many times can<br> she jump rope in 90 seconds?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!