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LiRa [457]
3 years ago
9

Bianca is styling hair and makeup for the upcoming dance at her high school. She charges $51 for hair and $35 for makeup. Identi

fy the expression that can be used to represent this situation. (2 points)
86hm
51h(35m)
51h + 35m
Mathematics
2 answers:
Anestetic [448]3 years ago
7 0
51h + 35m

Explanation:
For the first option, you can’t combine two different terms. Both would have to be represented by h or by m to put the two together.

On the second option, you wouldn’t multiply the two together either because in the problem, Bianca is doing hair AND makeup which is a keyword for adding.

The third and final option is the correct one because it’s leaving the two values separate and still adding them together.
Hatshy [7]3 years ago
7 0

Answer:

51h + 35m :)

Step-by-step explanation:

The variables represent how many people she styles, with h for hair and m for makeup

Hope this helps!

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Sammy is making a bacon wrapped pizza for dinner. She is wrapping 47.1 inches of bacon around the outside edge of the pizza. Wha
yKpoI14uk [10]

Answer:

Approx. 1.8 in.²

Step-by-step explanation:

Circumference of a circle (the pizza) = 2πr

Area of a circle = πr²

Set 2πr = 4.71 (because that's the length of bacon around the pizza) and solve for the radius "r". Then plug that "r" into the area equation πr² to find the area. You should get 1.8 square inches if I plugged them in correctly.

5 0
3 years ago
A model for the surface area of a human body is given by S = 0.1091w0.425h0.725, where w is the weight (in pounds), h is the hei
saveliy_v [14]

Answer:

2.3%

Step-by-step explanation:

Surface area of a human body is given by -

S = 0.1901* w^{0.425}* h^{0.725}\\

Taking integral on both sides, we get -

In S = 0.425 ln w + 0.725 ln h + ln 0.1091\\\frac{dS}{S} = 0.425\frac{dw}{w} + 0.725\frac{dh}{h}\\

Since, the at most error in the surface area of a human body is 2%

Substituting this in above equation, we get -

\frac{dS}{S} \leq [0.425*0.02 + 0.725*0.02]\\\frac{dS}{S} \leq0.023\\

Thus, the maximum error is surface area is equal to

0.023 * 100\\= 2.3%

6 0
3 years ago
Is a triangle with sides 7 feet, 12 feet, and 14 feet a right, acute or obtuse triangle?
tresset_1 [31]

Answer:

Acute

Step-by-step explanation:

This should be an acute triangle because if this was a right angle, then the three sides should be figured out by the Pythagorean Theorem.

An obtuse angle wouldn't be right either, you need an angle to be over 90.

7 0
2 years ago
Which numbers are necessary to solve this problem?
Bad White [126]
Hello there.

<span>Which numbers are necessary to solve this problem? 

Brian goes to the gym 3 times a week. He exercises for 45 minutes each visit. Fifteen of those minutes are spent on weights and the rest are spent on the treadmill. 

How much time does Brian spend on the treadmill in 4 weeks?

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5 0
3 years ago
Read 2 more answers
16 - x = -2 solve for x
poizon [28]

Answer:

16 - x = -2

16 + 2 = x

x = 18

hope it helps!

4 0
2 years ago
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