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NikAS [45]
3 years ago
11

Need help asap plzzz

Mathematics
2 answers:
Rashid [163]3 years ago
8 0
For a triangle the area is given as:
A=\frac{bh}{2}

Re-arrange / solve for 'h':
h=\frac{2A}{b}

Substitute known values:
h=\frac{2(60m^{2})}{15m}

Compute:
h=\frac{120m^{2}}{15m}
h=8m 

Nuetrik [128]3 years ago
8 0
The area of a triangle is the base times half the height. 
If we reverse that, half the height is 60 / base, ie., 60/15 = 4.
This means the height is twice that, 8m.
You might be interested in
What is the square root of four
xz_007 [3.2K]

Answer:

It is +2 or since (+2)*(+2 ) gives. If you think that it would be (-2) also then you are wrong because root of a positive rational number is always positive number.

Step-by-step explanation:

Let the square root of four be ‘k’.

Then we have

(4)^1/2=k

(Squaring both sides)

4=(k)^2

=>(k)^2–4=0

=>(k)^2-(2)^2=0

=>[k+2][k-2]=0 {since (a)^2-(b)^2=(a+b)(a-b)}

if product of two numbers is 0 then either of one must be zero.

If k+2=0 then k=-2

If k-2=0 then k=2

From here we got two answers but -2 should be omitted because when we square an equation we add “root extra”which means that when we square an equation one root is added.

3 0
3 years ago
Line ET is tangent to circle A at T, and the measure of Arc TG is 70°.
ziro4ka [17]
<span>Line ET is tangent to circle A at T
</span>
∴ ET ⊥ TN 
∴ ∠ ETN = 90
<span>the measure of Arc TG = 70
</span>
∠ TNG = half <span>the measure of Arc TG = 0.5 *70 = 35
</span>
<span>Δ ETN ⇒ The sum of all angles = 180
</span>
<span>∴∠ GET = ∠ NET = 180 - (90 + 35 ) = 55
</span>

∴ The correct answer is option <span>A. 55°</span>


4 0
3 years ago
Read 2 more answers
What can you times by 9 to 1296 <br> What can you multiply by 9 to get 1296
Bingel [31]

Answer:

144

Step-by-step explanation:

1296 divided by 9 = 144

9 times 144 = 1296

4 0
3 years ago
A hotel rents 210 rooms at a rate of $ 60 per day. For each $ 2 increase in the rate, three fewer rooms are rented. Find the roo
lidiya [134]

Answer:

r=$14,400

The hotel should charge $120

Step-by-step explanation:

Revenue (r)= p * n

where,

p = price per item

n = number of items sold

A change in price leads to a change in number sold

A variable to measure the change in p and n needs to be introduced

Let the variable=x

Such that

p + x means a one dollar price increase

p - x means a one dollar price decrease

n + x means a one item number-sold increase

n - x means a one item number-sold decrease

for each $2 price increase (p + 2x) there are 3 fewer rooms are rented (n-3x)

know that at $60 per room, the hotel rents 210 rooms

r = (60 + 2x) * (210 - 3x)

=12,600-180x+420x-6x^2

=12,600+240x-6x^2

r=2100+40x-x^2

= -x^2 +40x+2100=0

Solve the quadratic equation

x= -b +or- √b^2-4ac / 2a

a= -1

b=40

c=2100

x= -b +or- √b^2-4ac / 2a

= -40 +or- √(40)^2 - (4)(-1)(2100) / (2)(-1)

= -40 +or- √1600-(-8400) / -2

= -40 +or- √ 1600+8400 / -2

= -40 +or- √10,000 / -2

= -40 +or- 100 / -2

x= -40+100/-2 OR -40-100/-2

=60/-2 OR -140/-2

= -30 OR 70

x=70

The quadratic equation has a maximum at x=70

p+2x

=60+2(30)

=60+60

=$120

r= (60 + 2x) * (210 - 3x)

={60+2(30)}*{(210-3(30)}

r=(60+60)*(210-90)

=120*120

=$14,400

7 0
3 years ago
What does the letter c stand for in the formula a2 +b=c??
Travka [436]

Answer:

The answer is C

3 0
3 years ago
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