Which expression is equal to 420−−√−345−−√?




115√

−115√

5√

−5√

Answers

Answer 1

Answer:

[tex]-\sqrt{5}[/tex]

I hope that this helps anyone in the future! I took the test and got a good grade thanks to the anwser above


Related Questions

A 10 ft long ladder has one end that leans against a wall and another that rests on the ground 6 feet from the wall. To find out how high on the wall the ladder rests, which of the following formulas would be used?
Distance Formula
Slope Formula
Pythagorean Theorem
None of these choices are correct.

Answers

Answer:

Pythagorean Theorem

Step-by-step explanation:

A 10 ft long ladder has one end that leans against a wall and another that rests on the ground  - hypotenuse

6 feet from the wall - one leg

how high on the wall the ladder rests - second leg.

We have a right triangle, we need to find a leg,

so we have to use

Pythagorean Theorem.

Caelan has $ 7,500 in an account that earns 3.2% compounded interest annually. If she doesn't touch the money, how much will it be after 5 years?

Answers

7500(1+0.032)5=

1.032 to the power of 5= 1.171

7500x 1.171=8,782

Consider circle H below.
Y
If XY = 78 miles and mXY = 70°, then determine the radius of circle H.
Use 3.14 for pi and round your answer off to the nearest hundredths place if necessary. Type in the
number only; do not enter units.
Blank 1:

Answers

We have been given a circle H, in which length of arc XY is 78 miles and measure of arc XY is 70 degrees. We are asked to find the radius of circle.

We will use arc length formula to solve our given problem.

[tex]\text{Arc length}=2\pi r\cdot \frac{\theta}{360^{\circ}}[/tex], where,

r = Radius of circle,

[tex]\theta[/tex] = Central angle corresponding to arc.

We know that the measure of central angle that corresponds to arc XY will be equal to measure of arc XY.

[tex]78=2\cdot 3.14\cdot r\cdot \frac{70^{\circ}}{360^{\circ}}[/tex]

[tex]78=2\cdot 3.14\cdot r\cdot \frac{7}{36}[/tex]

[tex]78= 3.14\cdot r\cdot \frac{7}{18}[/tex]

[tex]78= r\cdot \frac{21.98}{18}[/tex]

[tex]r\cdot \frac{21.98}{18}=78[/tex]

[tex]r\cdot \frac{21.98}{18}\cdot \frac{18}{21.98}=78\cdot \frac{18}{21.98}[/tex]

[tex]r=63.8762511373[/tex]

Upon rounding to nearest hundredth, we will get:

[tex]r\approx 63.88[/tex]

Therefore, the radius of circle H is approximately 63.88 miles.

The value of x 3y, for x = -2 and y = 3, is -24. True False

Answers

Answer:

true

Step-by-step explanation:

x^3 y when x = -2 and y = 3

(-2)^3  * 3

-8 *3

-24

This is true

Students in grade 7 and 8 were asked which food they liked best the results are shown in the table below?

Answers

Answer:

55% if the students like hotdods

Answer:

55%

Step-by-step explanation:

The rule T5, -0.5 oR 0, 180(x,y) is applied to triangle FGH to produce triangle F’G’H’. What are the coordinates of vertex F’ of triangle F’G’H’?

Answers

Answer:

Step-by-step explanation:

Rule for the transformations has been given as,

[tex]T_{(5, -0.05)o\text{R}(0, 180)}(x,y)[/tex] defines the rules as the translation by 5 units right and 0.5 units down followed by rotation of the triangle by 180° about the origin.

In other words,

Rule for translation:

F(x, y) → F"(x + 5, y - 0.5)

Followed by the rotation of 180° about the origin,

Rule of rotation,

F"(x', y') → F'(-x, -y)

Following these rules coordinates of the new triangle F'G'H' can be obtained.

A. (4, -1.5).............

18. Find " y " when x = -4.25
y = 20x - 16x²​

Answers

Answer:

204

Step-by-step explanation:

Plug it into a calculator

or

20 multiplied by -4.25 then subtracted by 16 times -4.25 squared.

Please help it’s timed

Answers

Answer:

y=45

x=90

Step-by-step explanation:

x is a right angle, y is vertical from 45 degrees making it congruent to it.

Answer:

C: x=90 y=45

Step-by-step explanation:

The place where x is is obviously a right angle therefore, it is 90. Then here is a diagonal line cutting through the 90 degrees in half. 90/2=45.

f(x) = 5x^2 - x + 8
g(x) = 9x - 1

Answers

Answer:

Step-by-step explanation:

But there is not a question?

There is a population of 1,000 bacteria in a colony. If the number of bacteria doubles every 4 minutes, what will the population be 8 minutes from now? Please help me I might Fail Algebra.

Answers

Answer:

the population will be 16,000

Identify the 5th term in the sequence assuming that the sequence is either arithmetic or geometric:
94.5, 95.8, 97.1, 98.4,....

Answers

Answer:99.7

Step-by-step explanation:

An architect created a scale model of a building that was to be built.
Using a scale factor, how tall will the actual building be?
15 ft
60 ft
105 ft
135 ft

Answers

The scale factor is 15 because the width of the actual building is 15 times bigger than the model building.

So the length will be...

7*15 = 105 ft

answer: 105 ft

105 ft is your answer

Need Help Please, Stressing out :( and Thank you:)

Answers

Answer:

please don't be stressed :)

2. c

Step-by-step explanation:

2. if 1,000 is one kilogram then 1,412 = 1.412.

sorry i could only answer 1 but hope this helps

I think it is C, if I’m wrong, I’m really sorry !

PLEASE HELP!! (two questions, will give brainliest to best answer)
(Image below)

c) Millennium Park has an outdoor concert theater. Before a concert, the area reserved for special seating is roped off in the shape of a triangle as shown below. How can the converse of the Pythagorean theorem help you determine whether the roped off area is in the shape of a right triangle? (2 points)

d) The front of the stage, side C, is 50 feet long. A 40-foot rope runs along the side of square B. A 30-foot rope runs along the side of square A. Is the roped off area, triangle ABC, a right triangle? Explain. (2 points)

Answers

Answer:

yes, the corner is at a 90 angle

Step-by-step explanation:

Answer:

It is a right triangle.

Step-by-step explanation:

We know that 5, 4 and 3 is a Pythagorean Triple. In this instance, however, the Hypoteneus is 50, with the other sides being 40 and 30. This is simply the Pythagorean triple but ×10 larger.

You can also check this by:

50²= 30²+40²

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

Therefore, if the side-lengths is a Pythagorean triple, then the figure is a right triangle.

what is the measurement of RST

A: 40°
B: 50°
C: 60°
D: 70°

Answers

You’re answer is “D”

if the relationship is proportional, what is the missing value from the table?
A 8
B 9
C 12
D 14​

Answers

Answer:

C 12

Step-by-step explanation:

16 × 6 ÷ 8 = 12

check answer: 24 × 12 ÷ 16 = 18

The radius of a circle is 1 millimeter. What is the circle's area?

Answers

Answer:

The circle's area is pi

Step-by-step explanation:

A=πr2=π·12≈3.14159...

In the figure below, APE and EPD are congruent.
What is the arc measure of BAD on circle P in degrees?

Answers

Answer:

arc BAD = 244°

Step-by-step explanation:

The sum of the angles around the centre of the circle = 360°, thus

∠APD = 360° - (136 + 74 + 42)° = 360° - 252° = 108°

The angle at the centre is equal to the arc that subtends it, thus

arc BAD = arc BA + arc AD = 136° + 108° = 244°

The requried measure of arc BAD on circle P is given as  244°.

What are the angle?

Orientation of the one line with respect to the horizontal or other respective line is known as a measure of orientation and this measure is known as the angle.

The Arc of the whole circle measures, 2π = 360°,
Angle ∠APD is given as

∠APD = 360° - (136 + 74 + 42)°
∠APD   = 360° - 252° = 108°

The angle at the center is equal to the arc that subtends it, thus

Arc BAD = Arc BA + Arc AD
Arc BAD = 136° + 108° = 244°

Thus, the requried measure of arc BAD on circle P is given as  244°.

Learn more about Angles here:
https://brainly.com/question/13954458

#SPJ2

The figure shows the front side of a purse in the shape of a trapezoid.

What is the area of this trapezoid?

110 in²

121 in²

130 in²

220 in²

Answers

Answer:

110in2

Step-by-step explanation:

Area = (base1 + base2 ) * height /2

        = ( 9 + 13) *10 /2 = 110in2

Answers:

110in^2

Step-by-step explanation:

area pf rectangle=l×w

=9in×10in

=90in^2

area of 1st triangle

A=bh/2

=2in×10in/2

=20in^2/2

=10in^2

area of 2nd triangle=10in^2

Area of trapezoid =90in^2+10in^2+10in^2

=11in^2

The picture is up there thank you!

Answers

Answer:

4

Step-by-step explanation:

because it is the most # of pictures

What is the range of the data? ​

Answers

20
Explanation: 24(maximum)-4(minimum)=20

PLEASE HELP WILL MARK BRAINLIEST

Denise and Jacqueline are training for a swimming and running race.
• Jacqueline swims for 30 minutes. Then she runs 3.2 miles at a constant
pace. Her total training time is 54 minutes. • Denise swims for 24 minutes.
She runs at a constant pace of 8 minutes per mile. Her goal is to train for at
least 60 minutes. *
Part A: Write an equation or inequality to represent the pace, in minutes per mile, that Jacqueline
runs. Define all variables used. At what pace, in minutes per mile, does Jacqueline run? Show your
work. Respond in the space provided.

Answers

Answer:

45

Step-by-step explanation:

−8⋅f(0)+4⋅g(−8)=
Please help

Answers

Answer:

-32

Step-by-step explanation:

Look at the attachment

Functions can be represented as equations and graphs.

The value of [tex]\mathbf{-8\cdot f(0)+4\cdot g(-8)}[/tex] is -32

From the graph, we have the following values.

[tex]\mathbf{f(0)= 1}[/tex]

[tex]\mathbf{g(-8)= -6}[/tex]

So, we have:

[tex]\mathbf{-8\cdot f(0)+4\cdot g(-8)= -8 \times 1 + 4 \times -6}[/tex]

Simplify

[tex]\mathbf{-8\cdot f(0)+4\cdot g(-8)= -8 -24 }[/tex]

[tex]\mathbf{-8\cdot f(0)+4\cdot g(-8)= -32 }[/tex]

Hence, the value of [tex]\mathbf{-8\cdot f(0)+4\cdot g(-8)}[/tex] is -32

Read more about functions and equations at:

https://brainly.com/question/3468890

Jack ran 13.5 miles in 1.5 hours. What was his speed in miles per minute?

Answers

Answer:

9

Step-by-step explanation:

13.5 / 1.5 = 9

Answer:

[tex] \boxed{Speed = 0.15 \: miles \: per \: minute} [/tex]

Given:

Distance travelled = 13.5 miles

Time taken = 1.5 hours = 1.5 × 60 = 90 minutes

Step-by-step explanation:

[tex]Speed = \frac{Distance \: travelled}{Time \: taken} \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = \frac{13.5}{90} \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 0.15 \: miles \: per \: minute[/tex]

Each question Sandra answers incorrectly changes her overall score by - points. Sandra's

overall score was -4 points, and then she answered the last question incorrectly. What

was Sandra's final score?

Answers

Answer: -5

Step-by-step explanation:

For each question Sandra answered incorrectly her overall score was changed by -1 point.

Her overall score was -4 before she attempted her last question incorrectly. Since a wrong answer gives her -1 point and her overall is -4

We add her overall and her point from last question which sums up to -5.

So sandras final score is -5

Answer:-5 1/4

Step-by-step explanation:

Can someone please help me with these problems?

Answers

Answer:

number 1 is 5 inches

Step-by-step explanation:

it fits in the 15 inches 3 times.

5*3=15

In an orchard, there are 15 apple trees, 30 orange trees, and a cherry tree. What is the ratio of apple trees to cherry trees?

Answers

Answer:

15:1

Step-by-step explanation:

15 apples trees: 1 cherry tree

The McPhearson family went fishing. They caught 7 fish. The weights of the fish were 15, 16, 15, 13, 19, 20, and 21 pounds. What is the mean weight of these fish? Answer options with 4 options A. 15 B. 16 C. 17 D. 18

Answers

Answer:

C. 17

Step-by-step explanation:

The mean weight can be calculated by adding the numbers 15 + 16 + 15 + 13 + 19 + 20 + 21 divided by the number 7, which is the amount of numbers you just added.

(15 + 16 + 15 + 13 + 19 + 20 + 21)/7

the outcome = 17 which corresponds to answer C.

Answer: The answer is C.17

Step-by-step explanation:

What is the completely factored form of p4 – 16? (p – 2)(p – 2)(p + 2)(p + 2) (p – 2)(p – 2)(p – 2)(p – 2) (p minus 2) (p + 2) (p squared + 2 p + 4) (p minus 2) (p + 2) (p squared + 4)

Answers

Answer:

(p-2) (p+2) ( p^2+4)

Step-by-step explanation:

p^4 – 16

p^2^2 - 4^2

This is the difference of squares

(a^2 - b^2) = (a-b)(a+b)

(p^2 -4) (p^2+4)

Rewriting

(p^2 -2^2) (p^2+4)

We have another difference of squares

(p-2) (p+2) ( p^2+4)

Answer:

D

Step-by-step explanation:

on edg 2020!
































Item 12
Find the circumference of the object. Use $3.14$ or 22/7
for pi . Round to the nearest hundredth if necessary.

A cymbal with a radius of 7 inches.

circumference: about
in.

Answers

Answer: about 14pi inches

Explanation:

7 * 6.28319 = 43.9823

43.9823 / 3.14159 = 14.0000127324

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