1. A car engine is 25% efficient. How much input energy produces 100 J of useful energy?

Answer:

Area = 6cm^2

Step-by-step explanation:

Pythagorean Theorem = [tex]a^{2} + b^{2} = c^{2}[/tex]

[tex]a^{2} + 3^{2} = 5^{2}[/tex]

or

[tex]a^{2} + 9 = 25[/tex]

Subtract 9 from 25.

25 - 9 = 16

Square root 16 to get 4.

a = 4

Now to find the area.

Area = 1/2(3*4)

12/2 = 6

The unknown side of the right angle triangle is the hypotenuse side of the triangle and the length to the nearest tenth is 20.5 cm.

Right angle triangle are triangle that has one of its angles as 90 degrees. The sides can be found using Pythagoras theorem.

Therefore,

c² = a² + b²

where

Hence,

15² + 14² = x²

225 + 196 = x²

x = √421

x = 20.5182845287

x ≈ 20.5 cm

learn more on right angle triangle here:https://brainly.com/question/3770177

Answer:

I believe the inequality would be: p+2x3<40

Step-by-step explanation:

Not exactly sure if it is correct but p (number of pencils Sarahi has) added too the 2 more she finds, and then x3 (when she triples her amount). This is less then (<) what Damaris has (which is 40) so it would be p+2x3<40.

Again not sure if its completely correct, but i hope it helps :,)

Answer:

Sir your answer is 15

Step-by-step explanation:

Hope this helps luis

Answer:

Anna, Quarters are worth more than dimes

Step-by-step explanation:

While they both have 102 coins, quarters have a higher value than dimes do. Every 4 quarters is a dollar, so 102 divided by 4 is 25.5. Every 10 dimes is a dollar, divide 102 by 10 and you get 10.2.

Answer:

Anna has more money than Jasmine. Anna has $25.50 while Jasmine has $10.20. There is a $15.30 difference.

Step-by-step explanation:

While they both have 102 coins, quarters have a higher value than dimes do. Every 4 quarters is a dollar, so 102 divided by 4 is 25.5. Every 10 dimes is a dollar, divide 102 by 10 and you get 10.2.

Answer:

-4

Step-by-step explanation:

The equation can be rewritten as

37=9-7x

Subtract 9 from both sides

28=-7x

Divide both sides by 7

4=-x

This means that X is equal to -4

Answer:

Simplify x+1-2x+1−2 to x-1x−1.

x-1=4

x−1=4

2 Add 11 to both sides.

x=4+1

x=4+1

3 Simplify 4+14+1 to 55.

x=5

x=5

Add 11 to both sides.

x=2+1

x=2+1

2 Simplify 2+12+1 to 33.

x=3

x=3

Answer:

135 degress

Step-by-step explanation:

Answer:

p plus 6

Step-by-step explanation:

Step-by-step explanation:

[tex] - 20 \: is \: your \: answer[/tex]

To know the solution with Proof

Refer To the above attachment .

Answer:

91

Step-by-step explanation:

We can let the length of the field be l. Then, 2l + 2(55)=292. 2(55)=110, so 2l+110=292, and 2l = 182, so l = 91.

The graph shows the linear function. I hope this helps.

Answer:

Step-by-step explanation:

Multiply the total number of square feet by the cost per square foot of the carpet. If padding isn't included, multiply the cost of the padding by the total number of square feet, and then add the result to the total cost per square foot of the carpet.

108 Sq Ft 12 Sq YdsEstimated Price

$3,240.00 Carpet Cost

$0.00 Padding Cost

$3,240.00 Carpet & Padding Cost

hope that help

Answer:

Answer: y=1/3x-6

Answer:

110

Step-by-step explanation:

there

Let m = slope of the line.

m = delta y/delta x

m = (-70 -(-44)/(-1 -(-2)

m = (-70 + 44)/(-1 + 2)

m = -26/1

m = -26

Understand?

Answer:

$54 = 71%, $22 = 29%

Step-by-step explanation:

54+22=76

54/76 = 0.7105

22/76 = 0.2894

Answer:

550 / 12 = 45.84

45.84 / 4 = approximately 11.46

Answer: 11 11/24

Step-by-step explanation: 550/12 275/6/4/1

(275/6)(1/4)

275/24

11 11/24

Answer:

Step-by-step explanation:

*From what I'm getting, many of the blanks have multiple numbers that would work.*

No Solutions:

First Blank: 7

Second Blank: Any number but 5

One Solution:

First Blank: Any number but 7

Second Blank: Any number

Infinitely Many Solutions:

First Blank: 7

Second Blank: 5

Answer:

1. SSS

2. SAS

3. SAS

4. 1?

5. SSS

Step-by-step explanation:

Answer:

The answer is A and B

Step-by-step explanation:

y-y=m(x-x)

y-(-3)=m(x-(-5))

y+3=0.4(x+5)

y-y=m(x-x)

y-1=0.4(x-5)

The regular hexagon has 6 reflectional symmetries.

A regular hexagon has 6 congruent sides.

The number of sides of a polygon is the number of reflectional symmetry the polygon have.

Since the number of congruent sides of a regular hexagon is 6, then the regular hexagon has 6 reflectional symmetries.

Read more about reflectional symmetry at:

https://brainly.com/question/24584937

Answer:

It´s 6

Step-by-step explanation: Hope it helps ^w^

Answer:

6H

that was soo hard to find

Step-by-step explanation:

this creates 2 similar triangles.

that means all angles are the same. and all the side lengths of one triangle correlate to the corresponding side lengths of the other triangle by the same multiplication factor.

her shadow is 23.05 - 18.9 = 4.15 m long.

the factor between the shadow lengths is then

4.15 × f = 23.05

f = 23.05 / 4.15 = 5.554216867...

the same factor now applies to the relation of the heights :

1.45 × 5.554216867... = 8.053614458... m

rounded the tree is 8.05 m tall.

[tex]\text{Given that,}\\\\f(x) = 3x^2 -5x +4\\\\\\ \dfrac{f(a+h)-f(a)}{h}\\\\=\dfrac{3(a+h)^2 -5(a+h) +4 - (3a^2 -5a +4)}{h}\\\\=\dfrac{3(a^2 +2ah +h^2) -5a-5h+4-3a^2+5a-4}h\\\\=\dfrac{3a^2 +6ah +3h^2 -5a-5h-3a^2+5a}h\\\\=\dfrac{3h^2 +6ah -5h}h\\\\=\dfrac{h(3h+6a-5)}h\\\\=3h+6a-5[/tex]

Answer:

26 1/4

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

You add up both fractions, sorry for the lazy explanation

Answer:

I think the answer is 194.6 miles on the third day

Step-by-step explanation:

Answer:

hope it helps you ✨✨✨✨✨✨