What is the equivalent of 4 times the square root of five? answer all that apply. The rest of the answers are:
2 times the square root of ten
AND
3 times 5 and 1/2

Answers

Answer 1

Answer: So the selected answer would be 2√20 because that comes out to about 8.94
And 4√5 comes out to 8.94 as well but I could be wrong but yeah that's what I think

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What is the product (2x-1)(x+4)

Answers

Answer: $2x^2+7x-4$ .

Step-by-step explanation:

To find : The product of $(2x-1)(x+4)$

Using distributive property : $a(b+c)=ab+ac$ , we have

$(2x-1)(x+4)\n\n= (2x-1)x+(2x-1)4$

Again , using distributive property : $(b+c)a=ba+ca$ , we have

$(2x-1)x+(2x-1)4=2x\cdot x+(-1)x+2x\cdot 4+(-1)4\n\n=2x^2-x+8x-4\n\n= 2x^2+7x-4$

Hence, The product of $(2x-1)(x+4)$ is $2x^2+7x-4$ .

2x(x+4)-1(x+4)
2x^2+8x-x-4
2x^2+7x-4

How do you solve 3(m + 5 + 9m)

Answers

Answer:

30m+15

Step-by-step explanation:

First, collect the like terms: 3(10m+5)

Next, multiply the numbers inside the brackets with 3:

3*10m=30m

3*5=15

So the answer is 30m+15

Answer:30m+5

Step-by-step explanation:

3(m+5+9m)

3m+15+27m

30m+5

1/3 to the 3rd power

Answers

Answer:

I believe the answer to this question is: 1/27.

Finding KLM in this problem, if you could also explain it, that would be nice :)

Answers

The measure of angle KLM is 37°.

Solution:

Given data:

m(ar JN) = 140° and m(ar KM) 66°

To find the angle KLM:

If two secants intersect outside a circle, then the measure of angle formed is one half of the difference of the measures of the intercepted arcs.

$$\Rightarrow\angle KLM=(1)/(2)(m(ar \ JN)-m(ar \ KM))$

$$\Rightarrow\angle KLM=(1)/(2)(140^\circ-66^\circ)$

$$\Rightarrow\angle KLM=(1)/(2)(74^\circ)$

$$\Rightarrow\angle KLM=37^\circ$

The measure of angle KLM is 37°.

A 10-foot ladder is leaning against a tree. The bottom of the ladder is 4 feet away from the bottomof the tree
Approximately how high up the tree does the top of the ladder reach?

2.4 feet
6.0 feet
9.2 feet
10.8 feet

Answers

Answer:

the answer is 9.2 took a test on it got 100%

Step-by-step explanation:

Answer:

Step-by-step explanation:

10. A small plane was scheduled to fly from Atlanta to Washington, D.C. The plane flies at a constant speed of 230 miles perhour. However, the flight was against a head wind of 10 miles per hour. The threat of mechanical failure forced the plane to
turn back, and it returned to Atlanta with a tail wind of 10 miles per hour, landing 2.3 hours after it had taken off.
Complete parts a through b.
a. How far had the plane traveled before turning back?
The plane had traveled
(1)
before turning back.
(Type an integer or decimal rounded to two decimal places as needed.)
b. What was the plane's average speed?
The plane's average speed was
(2) -
(Type an integer or decimal rounded to two decimal places as needed.)
(1)
(2)
O miles
miles per hour
O hours
miles per hour
hours
miles.

Answers

Answer: The plane had traveled about 264 miles before turning back. The average speed was 230 mph

Step-by-step explanation: 230 - 10 = 220 speed outgoing

230+10 = 240 speed returning

Average speed (220+240)÷2= 460/2 =230 mph (needless to calculate!) Multiplied by total time 2.3 hours = 529 miles total distance.

Traveling the entire distance at 220mph would take about 2.4 hours. Traveling the entire distance at 240mph would take about 2.2 hours, a difference of .20 hours. Cut those times in half:

Traveling at 220mph for 1.2 hours would cover about 264 miles.

Traveling at 240mph for 1.1 hours would cover about 264 miles.

It adds up to 528 miles. The plane can't turn instantly, so figure the turn took the missing mile!

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