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2 years ago

In a small class there are 5 students:

Mathematics

1 answer:

skelet666 [1.2K]2 years ago

6 0

This confused me because there’s 7 students ?? but is it Abe because it starts with and a and is 3 letters???

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What is the length of DF?

AlexFokin [52]

Answer:

7.06

Step-by-step explanation:

17/8 = 15/DF

DF = 7.06

6 0

3 years ago

Read 2 more answers

Circle A has a radius of 9 centimeters and Circle B has a diameter of 19 centimeters. What is the relationship between the circu

IRISSAK [1]

Answer:

18:19

Step-by-step explanation:

Given that,

The radius of circle A = 9 cm

The diameter of circle B = 19 cm

We know that,

Radius = diameter/2

The radius of circle B = 19/2 cm

The circumference of circle A is :

$C_A=2\pi r_A$ ....(1)

And that of circle B is :

$C_B=2\pi r_B$ ....(2)

Dividing equation (1) and (2) :

$\dfrac{C_A}{C_B}=\dfrac{2\pi r_A}{2\pi r_B}\\\\=\dfrac{r_A}{r_B}\\\\=\dfrac{9}{\dfrac{19}{2}}\\\\\dfrac{C_A}{C_B}=\dfrac{18}{19}$

Hence, the ratio of circumferences of Circle A and Circle B is 18:19.

7 0

3 years ago

1x+1y=5 graph and y-intercept form

Stels [109]

If x+y=5, let y = 0 to find the x-intercept: x=5. The x-int. is at (5,0).
Let x = 0 to find the y-int: y=5. The y-int is (0,5).

Plot (5,0) and (0,5), and then draw a straight line thru both points.

If x+y=5, solving for y results in y = -1x + 5
Comparing this to y = mx + b, m=-1 and b= 5. Again, the y-int. is (0,5).

7 0

3 years ago

Suppose a homeless shelter provides meals and sleeping cots to those in need. A rectangular cot measures 6 feet long by 3 ½ feet

hjlf

Answer:

6.95 feet

Step-by-step explanation:

The shape of the cot is rectangular. A diagonal of the rectangle divides the rectangle into two Congruent Right Angled triangles. The length and width of the rectangle become the legs of the right triangle and the diagonal is the hypotenuse of the right triangle.

In order to find the length of the hypotenuse which is the diagonal in this case we can use the Pythagoras Theorem. According to the theorem, square of hypotenuse is equal to the sum of square of its legs. So for the given case, the formula will be:

$\textrm{(Diagonal)}^{2}=\textrm{(Length)}^{2}+\textrm{(Width)}^{2}\\\\ \textrm{(Diagonal)}^{2}=6^{2}+3.5^{2}\\\\ \textrm{(Diagonal)}^{2}=48.25\\\\ \textrm{(Diagonal)}=\sqrt{48.25}=6.95$

Thus, rounded of to nearest hundredth foot, the diagonal distance from corner to corner is 6.95 feet

6 0

4 years ago

My dad was painting our living room. He started with 5/9 of a can of paint.

SpyIntel [72]

Answer:

0.2 rounded up or 1/5 (also rounded up)

8 0

3 years ago