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
IrinaK [193]
3 years ago
8

A triangle has a base of 10 cm its other sides are both 13cm long calculate the area

Mathematics
2 answers:
earnstyle [38]3 years ago
7 0

Answer:

60 cm^2

Step-by-step explanation:

defon3 years ago
7 0
Answer: 60cm^2

Explanation:

Since both sides are 13cm it tells us that it is an isosceles triangle.

And we can find the height by using Pythagorean’s theorem.

If we cut the isosceles triangle into 2 same right triangles, we can take one of the right triangle and we can work out the height.

I added a picture, please check it out.

You might be interested in
Given m||n, find the value of x.<br><br> (2x+9)<br> (7X+24)
motikmotik

<em>Given, 9−7x=5−3x</em>

<em>Given, 9−7x=5−3xPut x terms on one side and constants on another side.</em>

<em>Given, 9−7x=5−3xPut x terms on one side and constants on another side.⇒9−5=7x−3x</em>

<em>Given, 9−7x=5−3xPut x terms on one side and constants on another side.⇒9−5=7x−3x⇒4=4x</em>

<em>Given, 9−7x=5−3xPut x terms on one side and constants on another side.⇒9−5=7x−3x⇒4=4x⇒x= </em><em>4</em><em>/</em><em>4</em><em> </em><em> =1</em>

<em> =1Hence, required solution is x=1.</em>

<em> </em><em>p</em><em>lease </em><em>mark </em><em>me</em><em> a</em><em> </em><em>brainlist</em><em> answer</em><em> </em><em>I </em><em>need </em><em>only </em><em>1</em><em> </em><em>ok</em>

8 0
2 years ago
A student solved for the radius of a circle with a circumference of 12π
padilas [110]

Answer:

Step 4 is incorrect  he did not divide correctly from step3 to step 4

Step-by-step explanation:

The circumference of a circle is

C = 2 * pi *r

We know the circumference is 12 pi

12pi = 2 pi *r

Divide each side by 2 pi

12 pi/2pi = 2pi r/ 2pi

6 = r

From step 3 The student did not cancel the pi in the top and the bottom on the right hand side to isolate r

In step 4 he got 6 =pi r  instead of pi

3 0
3 years ago
HELLO!! I NEED HELP! Please show full Solutions. I will mark brainliest for the best answer. Thank you and god bless.
Greeley [361]
((x+2)(x+2))-((x-5)(1))=A

x^2+4x+4-x+5=A

x^2+3x+9=A
8 0
3 years ago
Explain the reasoning please
Svet_ta [14]

Step-by-step explanation:

Something to keep in mind is that anything greater than 0 is positive and anything less than 0 is negative

a is to the right of 0 and 1 making it a positive number

b is to the left of 0 making is a negative number

A. a is greater than 1 and b is a negative number

negative number * positive number = negative number

We already know that a is greater than 1 so ab has to be much less than -1 making ab+1 a negative expression

B. Looking at the number line, you can tell that the distance between 1 and a is a bit less than the distance between 0 and 1

This means that a= 1.x not 2

Because of this, a-2 is negative

C. -b

b is a negative number which means that -b would be positive

D. a+b

Looking at the number line, you can tell that the distance between 0 and a is less than the distance between 0 and b

Therefore, a+b is negative

E. a-b

Since b is already negative, the expression would simplify to two positive numbers being added

This means that a-b can't be negative

F. a-1

The number line shows us that a is greater than 1, therefore, a minus 1 would be positive

I hope this helps in some way or another

7 0
3 years ago
Read 2 more answers
100 points if you can answer this whole page!!! Pls with an explanation
uysha [10]

Answer:

you didnt attach the picture or assignment

6 0
2 years ago
Other questions:
  • Which answer choice below correctly identifies the 202nd term in the sequence 5, 10, 15, 20, 25 …?
    14·1 answer
  • A single year on Saturn is equal to 29.4 years on earth. About how many Earth-years are equal to 3 years on Saturn
    14·1 answer
  • How many 3-letter combinations can be made from this set if no letter can be repeated?
    9·1 answer
  • Ryan earned x number of dollars babysitting his little brother in July. His older
    6·1 answer
  • Isaac records the following temperatures (in degrees Fahrenheit) at noon during one week:
    8·1 answer
  • I need help! ill give brainliest!
    9·1 answer
  • Find the average rate of change from x = 2 to x = 6 for the function f(x) = 3^x and select the correct answer below.
    13·1 answer
  • ‼️‼️‼️‼️‼️‼️<br> PLEASE HELP <br> FIRST ANSWER GETS BRAINLIEST <br> NO LINK NO LINKS OR BANNED
    10·1 answer
  • $7.95 lunch; 15% tip
    13·2 answers
  • The length of a rectangular garden is 30 yards more than the width. The perimeter is 300 yards. Find the length and width
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!