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boyakko [2]
3 years ago
14

A nurse worked from 8:15 A.M. until 11:30 A.M. and

Mathematics
2 answers:
Juli2301 [7.4K]3 years ago
8 0
The answer is a because 8:15 am to 11:30 am is 3 hours and 15 minutes. 12:30 pm to 4:15 pm is 3 hours and 45 minutes. 45 mins + 15 mins = 60 mins which is an hour. 3 hrs + 3 hrs + 1 hr = 7 hrs
Marina CMI [18]3 years ago
5 0

Answer:

D 8hr

Step-by-step explanation:

I say this because from 8:15

to 11:30 that will give you 2 hours and 45 minutes 12:30  to 4:15 will give you 4 hours and 45 minutes and if you add it all together you will get 8hr

2 hours     45

4 hours     45

6 hours     90 + 90 + 180

<u>                </u>

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Graph the function.<br><br> H(x) = 6 • (4/3)^x
Aloiza [94]

Answer:

Step-by-step explanation:

8 0
3 years ago
Explain the distance formula. Then use it to calculate the distance between A(1,1) and B(7,-7).
Lena [83]
Answer attached, but more letters needed

4 0
3 years ago
Please help me answer all parts of question 3 in the photo.
Nookie1986 [14]
(i.) CA = πrl
CA = π (5*13)
CA = 65π

(ii.) TA = πrl + πr^2
TA = 65π + π (5^2)
TA = 65π + 25π
TA = 90π

(iii.) To get the height of the cone, you have to use the Pythagorean theorem. Plug in the radius for a and the slant height for c.

a^2 + b^2 = c^2
5^2 + b^2 = 13^2
25 + b^2 = 169 Height = 12
b^2 = 144
b = 12

(iv.) v = (1/3)πr^2h
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5 0
2 years ago
Write an equation in point-slope form and in slope-intercept form.
Sever21 [200]

The point-slope form:

y-y_1=m(x-x_1)

The slope-intercept form:

y=mx+b

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

We have the points (1, -5) and (-3, -7). Substitute:

m=\dfrac{7-(-5)}{-3-1}=\dfrac{12}{-4}=-3\\\\y-(-7)=-3(x-(-3))\\\\\boxed{y+7=-3(x+3)}

Rewrite to the slope-intercept form:

y+7=-3(x+3)           <em>use distributive property</em>

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\boxed{y=-3x-16}

3 0
3 years ago
The square below has an area of
Solnce55 [7]

Answer:

8-x meters

Step-by-step explanation:

Both 64 and x^2 are perfect squares, since 64=(8)^2 and x^2=(x)^2.

Additionally, 16x is twice the product of the roots of 64 and x^2, since 16x=2(8)(x).

So we can use h the square of a difference pattern to factor:

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

In this case, a=8 and b=x:

(8)^2-2(8)(x)+(x)^2=(8-x)^2

In conclusion...

64-16x+x^2=(8-x)^2

So the side length of the square is 8-x meters.

3 0
3 years ago
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