5(7 − 4)2 ÷ 3 + 11 (the 2 is an exponent btw)

Answers

Answer 1

Answer: P.E.M.D.A.S
First subtract 4 from the 7 to give you 3.
3 with an exponent of 2 would equal 9. 5 times 9 equals 45 divided by three equals 15 plus 11 equals...

The answer: 26

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Please help, I don’t get it

Answers

Answer:

28°

Step-by-step explanation:

The angles in a triangle add up to 180°.

180 - 118 - 34 = 28

The distance an object falls when dropped from a tower varies directly as the square of the time it falls. If the object falls 144 feet in 3 seconds, how far will it fall in 17 seconds?

Answers

Direct variation:
$y=kx^2$
y - the distance, x - the time

The object falls 144 feet in 3 seconds.
$144=k * 3^2 \n144=9k \nk=(144)/(9) \nk=16 \n \Downarrow \n y=16x^2$

The object falls y feet in 17 seconds.
$y=16 * 17^2 \ny=16 * 289 \ny=4624$

In 17 seconds the object will fall 4624 feet.

Question

This is a relatively close question, and I have tried multiple times. Can you help?

The distance an object falls when dropped from a tower varies directly as the square of the time it falls. If the object falls 144 feet in 3 seconds, how far will it fall in 18 seconds?

Answer: The one below is correct.

Help now pls thank u

Answers

Answer:

120 inches of strands

Step-by-step explanation:

finding the diagonal

= $√((100+576))$

= 26 inches

perimeter of the window = 2(10+24)

= 68 inches

total strands needed to be purchased = [(2×26)+68] inches

= 120 inches of strands

A scientist needs 10 litera of a 20% acid solution for an experiment but she has only 5% solution and a 40% solution. To the nearest tenth of a liter, how many liters of the 5% and the 40% solutions should she mix to get the solution she needs?

Answers

x = liters of 5% solution

y = liters of 40% solution

The scientist wants 10 L total of a 20% solution, so

x + y = 10

0.05 x + 0.40 y = 0.20 (x + y) = 2

From the first equation,

y = 10 - x

Substitute this into the second equation and solve for x :

0.05 x + 0.40 (10 - x) = 2

0.05 x + 4 - 0.40 x = 2

2 = 0.35 x

x ≈ 5.714 L

Solve for y :

y = 10 - x

y ≈ 4.286 L

Given: ABCD ∥gram, BK ⊥ AD , AB ⊥ BD AB=6, AK=3 Find: m∠A, BK, Area of ABCD

Answers

1. Consider right triangle ABK. In this triangle AB is the hypotenuse, BK and AK are legs. By the Pythagorean theorem,

$AB^2=AK^2+BK^2,\n\n6^2=3^2+BK^2,\n\nBK^2=36-9=27,\n\nBK=3√(3)\ un.$

2. Use the definition of $\cos \angle A:$

$\cos \angle A=\frac{\text{adjacent leg}}{\text{hypotenuse}}=(AK)/(AB)=(3)/(6)=(1)/(2).$

Then $m\angle A=60^(\circ).$

3. Consider right triangle ABD. In this triangle AD is the hypotenuse, AB and BD are legs. Since $m\angle A=60^(\circ),$ then

$m\angle BDA=180^(\circ)-90^(\circ)-60^(\circ)=30^(\circ).$

The leg that is opposite to the angle of 30° is half of the hypotenuse, so

$AD=2AB=12\ un.$

4. The area of parallelogram aBCD is

$A_(ABCD)=AD\cdot BK=12\cdot 3√(3)=36√(3)\ sq. un.$

The box plots below show the lifespan, in months, of laptop batteries manufactured by two companies:Based on the data, which company's batteries have the smallest median lifespan?

Company A
Company B
Company C
Company D

Answers

Company: minimum Q1 Median Q3 maximum
A 19 19.5 23 23.5 24
B 21 22 24 25 26
C 20 21 22 24 28
D 19 20 22.5 23.5 27

The company that has the smallest median life span is Company C. Its battery only has a lifespan of 22 months.

Company C is the correct answer!

Other Questions

The boundary of a park is shaped like a circle. The park has a rectangular playground in the center and 2 square flower beds, one on each side of the playground. The length of the playground is l and its width is w. The length of each side of the flower beds is a. Which two equivalent expressions represent the total fencing material required to surround the playground and flower beds? Assume that the playground and beds do not overlap. The total fencing material required to fence the playground and both flower beds is

4m + 9 + 5m - 12 = 42

What is the length of BC?A. 9 unitsB. 11 unitsC. 15 units D. 16 units

Kyoki will accept lawn mowing jobs that take him less than 1 hour or more than 4 hours. 1. Write two inequalities to describe the jobs Kyoki will take.