The length of one of the equal sides of an isosceles triangle is 4 cm. If its base is 2 cm, then what is its area?​

Answers

Answer 1

Answer:

A = 1/2bh

b = 2cm

h will be found using the side of the triangle with Pythagoras theorem

h² + 1² = 4²

h² = 15

h = √15 cm

then,

A = 2*√15

2

A = √15cm²


Related Questions

pls help i’m crying

Answers

Answer: I think the answer is 81, but I don’t have a good explanation.

Step-by-step explanation: if you can find the angle next to 12x-3 (D), and the angle of 8+15x they should equal 180 degrees.

The Triangle Exterior Angle Postulate states that the measure of an exterior angle of a triangle is equal to the sum of the measures of the remote interior angles.

In the given problem, the exterior angle is < JDC, and its measure is equal to the sum of the measures of < (12x -3)° and < 32°.

We can set up the following equality statement to solve for the value of x, and find out the measure of < JDC:

m < JDC° =  < (12x -3)° + < 32°

< (8 + 15x)° = < (12x -3)° + < 32°

Subtract 8 from both sides:

8 - 8 + 15x = 12x - 3 + 32 - 8

15x = 12x + 21

Subtract 12x from both sides:

15x - 12x = 12x - 12x + 21

3x = 21

Divide both sides by 3 to solve for x:

3x/3 = 21/3

x = 7

To verify whether the value for x is correct, substitute x = 7 into the equality statement:

m < JDC° =  < (12x -3)° + < 32°

< (8 + 15x)° = < (12x -3)° + < 32°

[8 + 15(7)]° = [12(7) - 3]° + 32°

8° + 105° = 81° + 32°

113° = 113° (True statement). Therefore, the correct value for x = 7.

Therefore, the correct answer is C) m < JDC = 113°.

Please mark my answers as the Brainliest, if you find this helpful :)

the price of an item is $45.00. After a discount, the price is $38.25. What is the percent of the discount?
If you answer correctly ill give the brainliest.

Answers

Answer:

92.5% before discount 100% after discount is 92.5%

What are the values of s and t?

Answers

Answer:

the value of s=75°

and the value of t=30°

Answer:

s = 75°

t = 30°

Step-by-step explanation:

Since VW = VX,

s = 75

Since all angles in a triangle add upto 180,

75 + s + t = 180

75 + 75 + t = 180

150 + t = 180

t = 30°

Hope this helps and be sure to have a wonderful time ahead at Brainly! :D

PLZZZ HELPP REALLLY QUICKKK I WILL GIVE SOMEONE BRAINLEST PLZZ HELLPPP AND EXPLAINNNN PLZZZ EXPLAINNN

Answers

Hi there!

The ratio of the base to the height is 4:1, so:

12 cm : x cm

12/4 = 3, which is the scale. Thus, x = 3 cm.

Find the area using the equation A = b × h

A = 3 × 12 = 36 cm²

Can someone please help me

Answers

Answer: im not sure but it should be 5 that symbol then 3

Step-by-step explanation: ez dubs and also i love pizza this is for the points XD

Using Pythagorean theorem

[tex]\\ \sf\longmapsto H^2=P^2+B^2[/tex]

[tex]\\ \sf\longmapsto H^2=(5√3)^2+5^2[/tex]

[tex]\\ \sf\longmapsto H^2=75+25[/tex]

[tex]\\ \sf\longmapsto H^2=100[/tex]

[tex]\\ \sf\longmapsto H=10[/tex]

Done

after a 60% reduction, you purchase a new soft drink machine on sale for $200. what was the original price of the soft drink

Answers

your answer is 740 {:

Step-by-step explanation:

let x be the original price

then we write our equation

x-60%x=200 (x=100%x)

100%x-60%x=200

40%x=200

(40/100)x=200

x=(200*100)/40

x=20000/40=500

so the original price was $500

Find the distance between (1, 1) and (3, 4).
A. (2,2.5)
B.3
C.
[tex] \sqrt{13} [/tex]
Or D.
[tex] \sqrt{26} [/tex]

Answers

Answer:

no entiendo lo que dices

Step-by-step explanation:

inteta explicarte mejor para poder ayudarte bien

Which equation has infinitely many solutions? Lesson 2-4
__
3/4x + x − 5 = 10 + 2x
​3x − 2.7 = 2x + 2.7 + x
9x + 4.5 − 2x = 2.3 + 7x + 2.2
1/5x − 7 =3/4 + 2x − 25 3/4

Answers

Answer:

9x + 4.5 − 2x = 2.3 + 7x + 2.2

Step-by-step explanation:

if you simplify then you get 7x+4.5=7x+4.5 which mean 0=0

Find the train fares. Assume one half of adult fare for children 1-12. Children
under 1 ride free.

Adult fare: $260

Adults: 2

Children:
4 mo.
2 yr.
4 yr.
6 yr.
7 yr.

Answers

Answer:

(D) 6yr

Step-by-step explanation:

Ans: 1040 (520+520)
4mo is free
Children under 12 yrs fare equals to $130 (260/2) (130 x 4 = 520)
Adult: (260 x 2 = 520)

Two jars of sweets have the same amount of sweets inside.
25% of the sweets in jar A are orange.
2 fifths of the sweets in jar B are orange.
10 sweets in jar A are orange. How many are orange in jar B?

Answers

Answer:

4 sweets are orange in jar B

Step-by-step explanation:

The figure below has what type of symmetry?

Answers

Answer:

c both point and line symmetry.

make x the subject
h=4(x+3y)+2

Answers

Answer:

x=(h-12y-2)/4

Step-by-step explanation:

h=4x+12y+2

4x=h-12y-2

x=(h-12y-2)/4

Jean gets a commission of 20% on bread sold. In one week, Jean’s commission was $45,000.00.how much bread did he sell during that week?

Answers

Answer: 9,000

Explanation: .20%*45,000=

9,000

Someone plz help me :(

Answers

Answer:

C

Step-by-step explanation:

Answer:

C. (1, 3) & (6, 3)

Step-by-step explanation:

A is incorrect as the points are only 1 unit apart on the x-axis. (3 - 2 = 1)

B is incorrect as the points are only 2 units apart on the x-axis. (3 - 1 = 2)

C is correct as the points are 5 units apart on the x-axis (6 - 1 = 5)

D is incorrect as the points are 4 units apart on the x-axis (5 - 1 = 4)

Hope this helped! You can also plot the points on graph paper and find the distance that way.

Answers?..............​

Answers

The first one is 1
The second one is 1
The third one is 1
Their all 1, because any power with a base of 1, will equal 1. It’s like doing 1x1x1= 1. 1 multiplied to itself will equal 1.

Which expression describes 10−7?

Answers

Unless we are missing more information (which I think we may be as this is a simpler question)

10 - 7 = 10 - 7 = 3

If you need it in words:

Ten minus seven

- or -

Seven subtracted from ten


Find the equation of the line passing through points (6,0) and (-1,14)

will give brainliest

Answers

Answer:

Step-by-step explanation:

Step 1. Find the slope:

[tex]slope = m = \frac{y_{2} - y_{2} }{x_{2} - x_{1} }[/tex]

point 1, ([tex]x_{1} y_{1} \\[/tex])

point 2, ([tex]x_{2} , y_{2} \\[/tex])

Heyy, can someone please help me?? Step by step explanation, please. I WILL GIVE BRAINIEST!!

question attached below :))

Answers

Answer:

I think it's 2,4 and 4,8 maybe I'm not so sure

scale the numerator and the denominator up by a factor of 5 (multiply) to write a
fraction equivalent to 3/10.

Answers

Answer:

15/50

Step-by-step explanation:

5*3=15

5*10=50

so 15/50.

The figure below shows rectangle ABCD:
Rectangle ABCD with diagonals AC and BD passing through point E

The following two-column proof with a missing statement proves that the diagonals of the rectangle bisect each other:


Statement Reason
ABCD is a rectangle. Given
Line segment AB and Line segment CD are parallel. Definition of a Parallelogram
Line segment AD and Line segment BC are parallel. Definition of a Parallelogram
Alternate interior angles theorem
Line segment BC is congruent to line segment AD. Definition of a Parallelogram
∠ADB ≅ ∠CBD Alternate interior angles theorem
ΔADE ≅ ΔCBE Angle-Side-Angle (ASA) Postulate
Line segment BE is congruent to line segment DE. CPCTC
Line segment AE is congruent to line segment CE. CPCTC
Line segment AC bisects Line segment BD. Definition of a bisector


Which statement can be used to fill in the blank space?
A. ∠ABD ≅ ∠DBC
B. ∠CAD ≅ ∠ACB
C. ∠BDA ≅ ∠BDC
D. ∠CAB ≅ ∠ACB

Answers

Answer:

∠ADB ≅ ∠CBD

Step-by-step explanation:

I did the quiz and got an hundred.

What is 1x2 x to the power of 2

Answers

Answer:

(1X2x)^2=4x^2

1X2 = 2, 2^2 = 4

Not sure if you meant to have the 2nd x there or not.

Help me answer this please quickly!

Answers

Answer:

Step-by-step explanation:

When two lines intersect, the non adjacent angles formed are called vertical angles and they are congruent.

∠FZG = ∠HZJ   {Vertical angles are congruent.

∠FZG = 38°

HELPPPPPPPPPPPPPPPPPPPPPP

Answers

Answer:

11

Step-by-step explanation:

1. You could solve this as a way of just knowing that 6+11=17.

2. You could also solve this algebraically by subtracting 6 on both sides and getting y=11 because 17-6=11.

Answer:

y=11

Step-by-step explanation:

6+y=17

y=17-6

y=11

What are the domain and range of this relation

Answers

Answer:  Lower left corner (southwest corner)

Domain = {-2, 0, 1, 2, 5}

Range = {-5, -3, -1, 2, 3}

=============================================================

Explanation:

The domain is the set of allowed x value inputs. We simply list the x coordinates of each point shown on the graph. Those x coordinates are: -2, 0, 1, 2, 5. Use curly braces to indicate we're dealing with a set.

The range is the set of allowed output y values. We list the y coordinates this time and they are -5, -3, -1, 2, 3. These values are also surrounded by a pair of curly braces.

If a snail travels 2/5 of an inch in 2/3 of a minute, then how far can it travel in 1 full minute? ___Inches

Answers

Answer:

4 in / min

^Speed of snail

1min × 60 = 1hour

(4 in / min) × 60 = 240 in / hour

12 in = 1 ft.

240in / 12 = 20ft. every. hour OR 20ft. / h

Step-by-step explanation:

b) Write 25 x 10^6 in standard form​

Answers

Answer:

The final answer is 25000000.

Step-by-step explanation:

Answer:

25000000

Step-by-step explanation:

10^6 = 1000000

25 x 10^6 = 25000000

the sum of three numbers is 131. the third number is 4 times the first. the second number is 5 more than the first. what are the numbers

Answers

Step-by-step explanation:

let the numbers are:

a, b, and c

the equation would be:

a+b+c = 131

c = 4a

b = a+5

=>

a + a+5 +4a = 131

6a +5 = 131

6a = 131-5

6a = 126

a= 126/6

a = 21

b = a+5 = 21+5

b = 26

c = 4a = 4(21)

c = 84

please answer the 5 Question please ASAP

Answers

Answer:

1: C

2: D

3: i am not sure about this one since theres no question

4: D

5: D

f(x)= x² +5x-2
Find the vertex

Answers

Answer:

(-5/2, -33/4)

Step-by-step explanation:

-b/2a

-5/2 = x

f(-5/2) = (-5/2)^2 + 5(-5/2)-2 = -33/4

Find the GCF (Greatest Common Factor) of each pair of numbers:
9 and 36
35 and 42
100 and 120
84 and 42

Answers

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

The Answers are :

9 and 36 [tex]\rightarrow[/tex] 9

35 and 42 [tex]\rightarrow[/tex] 7

100 and 120 [tex]\rightarrow[/tex] 20

84 and 42 [tex]\rightarrow[/tex] 42

Answer:

9 and 36 = 9

35 and 42 = 7

100 and 120 = 20

84 and 42 = 42

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