Let x be the number of hours that Chaya studies for a test and let y be the number of points she receives on the test. For one test, Chaya studied for 5 hours and received 14 points. Select all the equations that could describe Chaya’s grades and her study time.

Answer:

scientific notation: 1.71568627×10^11

Step-by-step explanation:

look up math-way and click on the calculator if that is not what you are looking for :)

c 1.72×10^2;172 homie

Answer: What is the question-? :D

Step-by-step explanation:

Answer:

x = -4

Step-by-step explanation:

Since P is a straight vertical line, We know that the answer has to be about the x axis

Therefore, since the line is placed on -4 the equation will be

x = -4

Hope this helped :D

Answer:

X = 14

Step-by-step explanation:

For me, I did was add 12 and 16 which equals 28 then I divide it by the 2 sides and that how I got my answer

Hope it helps

Answer:

Hmm i don't know is A B C D

CBA should be hmm 90 degrees I think

Then you should be able to calculate

it's so easy

Step-by-step explanation:

Answer:

D. x = 18; ∠DBC = 54

Step-by-step explanation:

m∠ABD + m∠CBD = 90°

2x + 3x = 90°

5x = 90°

x = 18°

m∠DBC = 3x

m∠DBC = 3(18°)

m∠DMC = 54°

Answer:

Let x = # of hours Sophia spends ironing shirts

Let y = # of hours London spends ironing shirts

Equations: x + y = 11 and 40x + 25y= 365

Step-by-step explanation:

If Sophia and London worked a combined 11 hours, then one of our equations is : x + y = 11

They also note that Sophia and London both ironed 365 shirts, and Sophia irons 40 shirts per hour while London can iron 25 shirts per hour. Our next equation is : 40x + 25y= 365

Answer:

0

Step-by-step explanation:

Answer:

80

Step-by-step explanation:

Answer:

19x I believe

Step-by-step explanation:

Added 10 and 9, left the x

Answer:

10+9x can't be combined to make a number

Step-by-step explanation:

This is because the 10 doesn't have the variable x so we can't combine them together

If the 10 had an x beside it, it would've become 19x, but it doesn't so it stays as is

Sorry if this is incorrect!!!!!

Bella was here :)

Answer:

23.0 ft to nearest 1./0.

Step-by-step explanation:

By Pythagoras:

34^2 = h^2 + 25^2      where h = the height of the building

h^2 = 34^2 - 25^2 = 531

h = 23.04 ft.

Answer:

4939.22 feet cubed.  

Step-by-step explanation:

The formula for the volume of a cylinder is V=3.14*r^2*h

First we square the raidus, which is 11 in this problem.  11 squared is 121.

Next we multiply everything together.

3.14*121 is 379.94.  Then, 379.94 * the height, which is 13, is 4939.22.

Since our answer is already rounded to the nearest hundredth, the answer to this problem is 4939.22

Answer:

56 and 7 its going by 5

Step-by-step explanation:

Answer:

It would be A

Step-by-step explanation:

2,320÷120

Hoped this helped! lmk!!

Answer:

C. 97

Step-by-step explanation:

What if did was:

2,320/120 = approx. 19

19 • 5

97

Hopefully this is correct! Good luck

Trinomial

Step-by-step explanation:

T[tex]ri \: means \: three.[/tex]

Answer:

My father

Step-by-step explanation:

1. Say hi

2. Say hello

3. Be polite

4. Be humble

5. Now you got money from you father

Answer:

5×3 =15

15×4=60

3×3=9

9×2=18

60+18=78

Answer:

Step-by-step explanation:

Area is + 111.6 square meters

Formula : A/ 3.14 / 2

111.6 / 3.14 = 35.54

35.54 is the radius so multiply by 2 to get diameter .

35.54 / 2 = 17.77

Hope that’s right:)

Everytime your X goes up by 1, your Y goes up by 4

making the space between 6 and 14 = 10

the exponential factor equation would look something like this

g(x)=3^x

meaning every time x goes up by 1, your exponential factor gets multiplied by 3, making 14y have an exponential factor of 1.

Answer:

The given polynomial x(x -3)(x +6)(x -7)= 0 is of degree 4. Therefore, it has 4 zeros as follows. So, x = 3 is the second zero. So, x = -6 is the third zero.

Step-by-step explanation:

Answer:

1384.74cm squared

Step-by-step explanation:

A= πr²

Answer:

you are correct :)

Step-by-step explanation:

complementary angels equal 90 degrees so you do 90-52

supplementary angels on the other hand, equal 180 degrees

Answer:

Option 3

Step-by-step explanation:

We want to work out the surface-area

This is a cylinder and the formula for the surface area of a cylinder is :

2πrh+2πr^2

^ means to the power of

The radius is 15

The length is 18

2(3.14)(15)(18) + 2(3.14){15}^2

Part 1:

(6.28)(15)(18)

(6.28)(270)

1695.6

Part 2:

First, we do the exponents,

15^2 = 225

(6.28)(225)

1413

Part 3:

1695.6 + 1413 = 3108.6

Answer: 3108.6

Hope this helps :)

Answer:

sd sad a

Step-by-step explanation:

Answer:

It's called a Diophantine Equation, and it's sometimes known as the “summing of three cubes”: Find x, y, and z such that x³+y³+z³=k, for each k from 1 to 100. One answer is x = 1, y = -1, and z = 2.

Step-by-step explanation:

Answer:

<B = 110°

Step-by-step explanation:

The interior angles formed by the sides of pentagon sum up to 540°.

So <A + <B + <C + <D + <E = 540°

130° + (x - 5)° + (x + 30)° + 75° + (x - 35)° = 540°

3x + 130 + 30 + 75 - 5 - 35 = 540

3x + 195 = 540

3x = 345

x = 115°

<A = 130°

<B = x - 5 = 115 - 5 = 110°

<C = x + 30 = 115 +30 = 145°

<D = 75°

<E = x - 35 = 115 - 35 = 80°

Hope it helps......

Answer:

64

Step-by-step explanation:

length(l)=8cm

breadth(b)=2cm

height(h)=4cm

volume=l×b×h

=8cm×2cm×4cm

=64cm³

Answer:

[tex]f(x)=x+5[/tex]

Step-by-step explanation:

The rate of change (slope) is 1 which is more than function 2 and less than function 1

Answer:

f(x) = x+5

Step-by-step explanation:

Answer:x=8 so 60 for both aswers

Step-by-step explanation:10x-7x = 4+20 -> 3x=24 -> x=8