Find the length of an altitude of an equilateral triangle with sides of 4 cm.

Answers

Answer 1

Answer:

c.

Step-by-step explanation:

Altitude of Equilateral Triangle h = (1/2) * √3 * a. Angles of Equilateral Triangle: A = B = C = 60° Sides of Equilateral Triangle: a = b = c.


Related Questions

Which of the following are equivalent to 80 1/2

Answers

Answer:

Sorry but what are the answer choices?

If anything just divide or multiply 80 1/2 by any number and it will give you something equivilent

Step-by-step explanation:

2√20 is the equivalent expression of the value  [tex]80^\frac{1}{2}[/tex].

What is Number system?

A number system is defined as a system of writing to express numbers.

The given expression is [tex]80^\frac{1}{2}[/tex]

We have to find the equivalent expression of  [tex]80^\frac{1}{2}[/tex]

[tex]80^\frac{1}{2}[/tex] can be written in radical form which is √80

80 can be written as 4 times of 20

√4×20

The square root of 4 is 2

So 2√20

Hence, 2√20 is the equivalent expression of the value  [tex]80^\frac{1}{2}[/tex].

To learn more on Number system click:

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ANSWER THIS PLZ I NEED HELP

Answers

Hey! Part a is: 3x+4=22
Part b is: x=6 because you multiply the 3x and x is 6.
3(6)+4=22
18+4=22
22=22
Hope this helped

Answer:

a) 3x+4

b) 6×3+4

Step-by-step explanation:

She counted the money and found out she has $14.90 in the jar. How many dimes and quarters does she have?

Answers

Answer:

There're too much possibilities of the answer.

help me pleaseeeeee!!!!!

Answers

Answer:

The triangle is an isosceles triangle

Isosceles. In geometry, an isosceles triangle is a triangle that has two sides of equal length. The lines indicate that the two sides are equal.

I NEED HELP WITH THIS!!!!

Answers

Answer:

-6r+6

Step-by-step explanation:

1) Remove parentheses

8-6r-2

2) Collect like terms

-6r+(8-2)

3) Simplify

-6r+6

7.602 neastest whole number

Answers

Answer:

8

Step-by-step explanation:

since it's 7.6, the rule of rounding is if it's five or more go up, and 4 or less stays the same. since it's 6, you go up to the nearest whole number, which is 8

V = 5x + 2y
x= 3
y=-4
a) Work out the value of V
b) Expand 3p(p + 5)
c) Solve 4(k - 6) = 20

Answers

Answer:

a.7

b.

[tex]3 {p }^{2} + 15p[/tex]

c.k=11

Step-by-step explanation:

a.V=5x + 2y ,x=3,y= -4

V=5(3)+2(-4)

=15+(-8)

=15-8

=7

b.3p(p + 5)

=

[tex]3 {p}^{2} + 15p [/tex]

c.4(k-6)=20

4k-24=20

4k-24+24=20+24

4k=44

4k/4=44/4

k=11

hope it's helpful ❤❤❤❤

THANK YOU.

#

An uses they equation y= 8.25x to calculate the total cost y in dollars for x posters. How much did she spend on 6 posters?

Answers

well if the equation is y=8.25x it means that you would multiply 8.25 x 6 to get the total cost of the posters.

8.25 x 6 = 49.50

49.50 would be the total cost! I hope this helps!

Jamie need to earn more than $4,000 to pa his monthly bills. he earns a monthly salary of $2,500 plus an extra $75 for every electronic device he sells. Write an inequality to determine the minimum number of electronic devices Jamie needs to sell each month in order to have enough money to pay his monthly bills. Let d represent the number of electronic devices Jamie needs to sell each month. Help plz.

Answers

Answer:

hi

Step-by-step explanation:

hi

please help (URGENT) (im slow)

Answers

Answer:

x=8

Step-by-step explanation:

What is the quotient?
- -2

Answers

Answer: You need 2 terms so there isn't one

The term "quotient" is most commonly used to refer to the ratio of two quantities and , where. . Less commonly, the term quotient is also used to mean the integer part of such a ratio.

Step-by-step explanation:

Lin's family has completed 80% of a trip. They have traveled 32 miles. How long is the whole trip?

Answers

Answer: 50 miles

Find t:

0.70t = 35. Dividing both sides by 0.70, we get:

35

t = ----------- = 50

0.70

The total trip length is 50 miles.

Identify whether the expressions are equivalent or not equivalent: 7y – 15 + 2y and 9y - 15

Answers

Answer:

Yes, the two expressions are equivalent

The given expression 7y - 15 + 2y and   9y - 15 are equivalent.  

What is equivalent expression?

Two algebraic expressions are said to be equivalent if their values obtained by substituting the values of the variables are same, even they look different.

According to the given question.

We have two expressions

[tex]7y - 15 + 2y ...(i)[/tex]

And, [tex]9y - 15 ...(ii)[/tex]

The expression (i) can be written as

[tex]7y - 15 + 2y[/tex]

[tex]=(7y + 2y)-15[/tex]            (adding the like terms)

[tex]= 9y -15[/tex]    

Hence, the given expression 7y - 15 + 2y and   9y - 15 are equivalent.    

Find out more information about equivalent expression here:

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Explain the slope and the y-intercept

Answers

The slope is -1 because slope= rise/run and it’s going down 1 right 1. The y-intercept is a point that touches the y axis. In this case the y intersept is 225. Hope this helps!

find m<1
33°
28°
42°
47°

Answers

Answer:

it's answer is 33°

Step-by-step explanation:

116° + 31° + m<1 = 180° [being sum of angles of triangle ]

147° + m< 1 = 180°

m<1 = 180° - 147°

m<1 = 33°

[tex]hope \: i t \: will \: help [/tex]

Solve the system of equations using the elimination method and enter the value of y.
4x - 5y = -9
- 4x+y=-7
y =

Answers

i think it is y= 9/5 + 4x/5

Is it possible for two numbers to have a difference of 8, and a sum of -6? If so, what are the two numbers?

Answers

Answer: The two numbers are 1 and -7

1 minus -7 = 1 - (-7) = 1 + 7 = 8 .... difference

1 plus -7 = 1 + (-7) = -6 .... sum

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

Explanation:

Let x and y be the two numbers. Let's say that x > y. Meaning that x is the bigger value.

They have a difference of 8 tells us that

x-y = 8

since "difference" is the result of subtraction. The term "sum" means the result of addition. Having a sum of -6 tells us

x+y = -6

We have this system of equations

[tex]\begin{cases}x-y = 8\\x+y = -6\end{cases}[/tex]

We can add the equations straight down. So we add the x terms to get x+x = 2x. The y terms add to -y+y = 0y = 0, so the y terms go away. The stuff on the right hand side adds to 8+(-6) = 2

After adding the equations straight down, we boil things down to the equation 2x = 2 which solves to x = 1, after dividing both sides by 2.

Then you'll use x = 1 to find y

x-y = 8

1-y = 8

-y = 8-1

-y = 7

y = -7

or

x+y = -6

1+y = -6

y = -6-1

y = -7

Regardless of what equation you pick, you should end up with the same y value. This helps confirm we have the correct x value.

Another way to check is to plug (x,y) = (1,-7) into both equations of the system. You should end up with true statements after simplifying fully.

So the two numbers are x = 1 and y = -7

Find the Percent:
A computer is marked up from last
year's model by 12%. If the cost last
year was $1150.00; What is the cost
of the new model?

Answers

Step-by-step explanation:

First, find 12 percent of 1,150,

12 percent of 1,150 = 138.

Now, add 1,150 + 138,

1,150 + 138 = 1,288

Hope I helped, if not, at least I tried.

help me please and thank you!​

Answers

7^6 is the correct answer

i don’t understand.
online school is hard

Answers

Answer:

4. [tex]6\sqrt{3}[/tex]

6. [tex]\frac{2\sqrt{6} }{3}[/tex]

8. 23.78

good at math? & can help!! please :))

Answers

Answer:

D

Step-by-step explanation:

I NEED POINTS AHHHHHHHHHH LOL

Find the slope of a line that passes through (2,4) and (-4,7) ?


a
1/2
b
- 1/2
c
-2
d
2

Answers

Answer:

Step-by-step explanation:

y^2-y^1/x^2-x^1 Formula

7-3/-4-4=4/-8= -1/2

Plez help finding percent change


Answers

Answer:

can't see proprly

Step-by-step explanation:

Write an equation in point slope form that passes through the given point and has the given slope.

Point = (-2, 5)

Slope = 4

Answers

y+2=4(x-5) pretty sure

While testing 10 light bulbs, Harvey finds that 6 of them do not light. Which best describes the fraction of light bulbs that are working? A. number of light bulbs that are not working/total number of light bulbs B. number of light bulbs that are working/number of light bulbs not working C. number of light bulbs that are not working/number of light bulbs working D. number of light bulbs that are working/total number of light bulbs

Answers

Answer:

4/10

Step-by-step explanation:

There is 10 of them, and 6 are not working. So, it is 4/10

A scientist makes $150,000 per year. She deposits 5% of her yearly income in a travel savings account. How much money should she have in her savings account by the the end of the year in dollars and cents?

Answers

Answer:

the answer is $7,500.00 or 7500

plz mark me as brainly

Step-by-step explanation:

complete the algebraic table for y = 2x + 3


given: x ---> -2, -1, 0, 1, 2, 3
y ----> ?, 1, ?, ?,7,?

Answers

Answer:

y ----→  -1 , 1 , 3 , 5 , 7 , 9

Step-by-step explanation:

LINEAR EQUATION GIVEN IN THE QUESTION :-  y = 2x + 3

In the question , some values of variable 'x' are given. Lets put each value of 'x' in the equation.

When x = -2 ;  [tex]y = 2(-2) + 3 = -4 + 3 = -1[/tex]When x = -1 ; [tex]y = 2(-1) + 3 = -2 + 3 = 1[/tex]When x = 0 ; [tex]y = 2(0) + 3 = 0 + 3 = 3[/tex]When x = 1 ; [tex]y = 2(1) + 3 = 2 + 3 = 5[/tex]When x = 2 ; [tex]y = 2(2) + 3 = 4 + 3 = 7[/tex]When x = 3 ; [tex]y = 2(3) + 3 = 6 + 3 = 9[/tex]

Thus , we got all the required values of y.

Mandy paid $9.84 for 3 pounds of ground meat. What is the price per pound?

Answers

Answer:

$3.28 wait for more responses if needed

Step-by-step explanation:

9.84 divided by 3 would be 3.28

Answer:

3.28 per pound

Step-by-step explanation:

All you have to do is divide 9.84 by 3 to see how much Mandy paid per pound.

Hope this helps!!!

need help with this question asap !!!

Answers

Answer:

I think it is B

Step-by-step explanation:

Answer:  D) 12

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

Work Shown:

The smaller angles UVN and NVW add up to the largest angle UVW.

This is due to the angle addition postulate.

(angle UVN) + (angle NVW) = angle UVW

(6x+13) + (46) = 11+10x

6x + 59 = 11 + 10x

6x - 10x = 11 - 59

-4x = -48

x = -48/(-4)

x = 12

----------------

Extra info:

If you're curious about the angles, then we use that x value to find them

angle UVN = 6x+13 = 6*12+13 = 72+13 = 85 degreesangle NVW = 46 degreesangle UVW = 11+10x = 11+10*12 = 11 + 120 = 131 degrees

Note how 85+46 = 131 to show that (angle UVN) + (angle NVW) = angle UVW is a true equation. This confirms our answer for x.

Write an equivalent expression for 5(3h + 2) - 6.

Answers

Answer:

15h + 4

Step-by-step explanation:

5(3h + 2) - 6

Distribute

5 x 3h = 15h

5 x 2 = 10

rewrite equation

15h + 10 - 6

Subract

10 - 6 = 4

Hope This Helps!! :)

15h + 4 that’s the answer to this question.
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