Please help me with 3 more questions ill give good ratings please!

Answer:

First one is (d)

Second one is (c)

Third is (a)

Fourth is (21)

Answer:

6.25%

Step-by-step explanation:

Percent error is calculated by taking the difference of measured value and correct value divided by correct value and multiplied by 100%.

Mathematically,

Percent error = (correct value - measured value)/correct value  * 100%

_________________________________________________

in the problem given

measured value = 75 degrees Celsius

correct value = 80 degrees Celsius ( as given in reference book)

thus,

Percent error = (80 - 75)/80 * 100%

Percent error = (5/80 )* 100% = 6.25%

Percent error calculated by him is  6.25%.

We will see that the percent error in Joshua's measure is:

Pe = 6.25%

The percent error for a measure is computed as:

[tex]P_E = (\frac{A - M}{A})*100 \%[/tex]

Where A is the accepted value and M is the measured value.

Here we have:

A = 80°C

M = 70°C

Replacing that we get:

[tex]P_E = (\frac{80 \°C - 75 \°C}{80 \°C})*100 \% = 6.25 \%[/tex]

So we can conclude that the percent error is 6.25%

If you want to learn more about percent error, you can read:

https://brainly.com/question/5493941

Answer:

400

Step-by-step explanation:

75%=0.75

300/0.75 = 400

Answer:

400

Step-by-step explanation:

75/100 of x = 300

75x/100 = 300

Cross multiplying

75x = 30000

Dividing the both by 75

x = 400

Solve the following equation : 2x+3x= 40

then, multiply the value of "x" by 2.

Hope it helps

Answer:

220 meters=22000 centimeters

Step-by-step explanation:

Hope this helps!!! :)

Answer:

140 yd³

Step-by-step explanation:

The volume (V) of the triangular prism is calculated as

V = Ah ( A is the area of the triangular face and h is the depth )

A = [tex]\frac{1}{2}[/tex] bh ( b is the base and h the perpendicular height )

   = 0.5 × 5 × 8 = 20 yd² , thus

V = 20  × 7 = 140 yd³

Answer:3,-7

Step-by-step explanation:

Answer:

About 2.38 square feet of extra fabric: 1.25 of dark blue and 1.13 of light blue

Need $13.75 to complete template for white fabric

Step-by-step explanation:

Template requires 18 square feet of white, 20 square feet of light blue and 21 square feet of dark blue.

She has more than enough for both shades of blue fabric.

She needs 5.85 square feet more of white fabric

Since it is $2.35 per square feet of white fabric, 2.35 * 5.85 = $13.75.

It will cost her $13.75 for more white fabric

Hope this helps!

Answer:

1/4

Step-by-step explanation:

3 and 6 are both multiples of 3, so there is a 2/8 chance of spinning a multiple of 3, which can be simplified to 1/4.

Answer:

0.04=1/25

Step-by-step explanation:

0.04=0.04*100/100=4/100=1/25

Answer:

Step-by-step explanation:

the two given lines are parallel.

Hence they do not intersect.

or they have no solution.

Answer:

V≈4021.24

Hope this helps!

Answer:

1004.8

Step-by-step explanation:

The volume of a cone is [tex]\pi r^2*\frac{h}{3}[/tex]

r = 8

h = 15

64π * 5 = 320π

320 * 3.14 = 1004.8

Answer:

100 (+1) x 2^t     = 100 (+2et) as we plus and we multiply before squaring the years.

Step-by-step explanation:

You cna now work this out as +1 represents the 100% + 200% sum.

Answer:

C) [tex] A = 100e^{2t} [/tex]

Step-by-step explanation:

Continuous growth:

[tex] A = Pe^{rt} [/tex]

r = rate as a decimal

r = 200% = 2

P = initial value = 100

[tex] A = 100e^{2t} [/tex]

Answer:

5 Tons

Step-by-step explanation:

Or 7,858.35 Pound sterling In Money Standards

Answer:

b is (4,55). c is correct I believe.

Step-by-step explanation:

You need to find where the lines cross on the graph. You see that at point (4,55)

Answer:

BBBBBBBBBB is the anwser!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Step-by-step explanation:

Answer:

i) x= -0.25, x=1.25

ii)x=1.5, x= -0.5     (notice the negative signs)

Step-by-step explanation:

So, to simply solve this(or estimate), notice what the equations say at the end of them!

0 and 2, and also notice the equations are exactly the same as the graph's.

This means, by substitution, we are look for the x-values at y=0, and at y=2

(because they are exactly the same, in those instances, we can just replace the equation with the value of 0, or 2 because they are equal)

Then all we have to do is imagine the lines of y=0(x-axis) and y=2, and find where the parabola intersects those lines.

And so, just find where they intersect, and you have got it!

Hope this helps!

Answer:

(-5 1/9, -4)

Step-by-step explanation:

Add the equations

5y=-20

y=-4

-9x+8(-4)=22

-9x-32=22

-9x=46

x= - 5 1/9

Answer: 9852.034562

Step-by-step explanation:

Answer:

  =9847.04

Step-by-step explanation:

The diameter is 112

The radius is 1/2 of the diameter

r = d/2 = 112/2 =56

The area of a circle is

A = pi r^2

  = 3.14 (56)^2

  =9847.04

Answer:

19.8

Step-by-step explanation:

You have to first put the numbers into ascending order:

8.4, 9.3, 11.4, 18.5, 19.6, 20, 26.1, 32.3, 44.1, 46.41.

Because there is an even amount of numbers, you end up with 19.6 and 20.

The in between of 19.6 and 20 is 19.8.

(You can work this out by adding the two numbers together and then dividing by two if you have to.)

Step-by-step explanation

The first answer is 7.85m²

the second answer would be 25.71m²

Answer:

1/3

Step-by-step explanation:

there's 6 total marbles and 2 are yellow so this can be expressed as 2/6 which can be simplified to 1/3.

hope it helps!

Answer:

1/3

Step-by-step explanation:

The total number of marbles

3 red marbles, 2 yellow marbles, and 1 blue marble = 6 marbles

P( yellow) = yellow / total

                 = 2/6

                 = 1/3

"When the sides are congruent (same direction and size), and the two opposite sides are parallel, the angles are the same. In an isosceles triangle, two angles are congruent, because two sides are congruent."

Someone else's answer, heres the link

https://brainly.com/question/3884042

Answer:

4

Step-by-step explanation:

the correct answer is number 4

if X = 2 ==> 2x -5 = 2(2) -5 = 4 - 5 = -1

Answer:

The answer is D.

Step-by-step explanation:

Given that Larry wrong 5% of the questions and he correct the remaining 95%. So in order to find how many questions he correct, first, you have to convert the percentage to decimal by dividing it by 100 :

[tex]95\% = \frac{95}{100} = 0.95[/tex]

Next, you have to multiply by the total number of questions :

[tex]0.95 \times 80 = 76 \: questions[/tex]

Answer:

28%

Step-by-step explanation:

Express 14 as a fraction of 50 and multiply by 100%, that is

[tex]\frac{14}{50}[/tex] × 100% ( cancel 50 and 100 by 50 )

= 14 × 2 %

= 28%

Answer:

L*b

6*4

24cm

L*b*h

14.6m *1.2cm *8.4cm

=147.168

Answer:

This is the answer to No 1.

Volume= 48√5

Answer:

3.5

Step-by-step explanation:

35% is only 0.35

Answer:

3.5

Step-by-step explanation:

Answer:

(0, ♾️ ) is the range of function y=sqrtx+5.

Answer:

B. It is a relation but not a function of x.

Step-by-step explanation:

I just took the quiz on edge

Answer:

B. It is a relation but not a function of x

Step-by-step explanation: