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sukhopar [10]
3 years ago
10

What is the area of an equilateral triangle with sides of 10 inches and height of 7 inches? A. 70 sq. in. B. 35 sq. in. C. 20 sq

. in. D. 44 sq. in.
Mathematics
2 answers:
erastovalidia [21]3 years ago
8 0

Answer:

the correct answer is 35

Step-by-step explanation:


Ahat [919]3 years ago
5 0
We are given the sides of an equilateral triangle of 10 inches length of the sides and 7 inches as the height of the triangle. The area of the triangle is 0.5*b*h equal to 35 square inches. The answer is 35 square inches in this problem. 
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Felicity set the thermostat of her refrigerator to 37°F. The refrigerator temperature t in degrees Fahrenheit h hours after the
kirill115 [55]

Answer:

Period=6

Step-by-step explanation:

Given:

t=1cos(1.05h)+37

Using acos(bx-c)+d to find the period of the given function

amplitude= a

period= 2π/Bb

phase shift=c (positive is to the left)

vertical shift=d

comparing with t=1cos(1.05h)+37, we get

a=1

b=1.05

c=0

d=37

period= 2π/b

          =2π/1.05

          =5.983

          =6

Period of function is 6, after every 6 hours the refrigerator sensor will reach its maximum temperature and the cycle will move towards reducing temperature i.e it'll reach the minimum temperature then again the cycle will move upwards raising the temperature to maximum and so one period will be completed!

5 0
3 years ago
Read 2 more answers
Please help . I’ll mark you as brainliest if correct.
MariettaO [177]

Answer:

[4, positive infinity]

Step-by-step explanation:

since f(4) exists, the interval starts at 4, and continues to infinity.

3 0
3 years ago
Which is greater, 3/4 or 11/16? How can you be sure?
Aleksandr-060686 [28]
3/4 because if you multiply to get the LCM (16)  it becomes 12/16 which is greater than 11/16
4 0
3 years ago
Rounded to the nearest hundredth, what is the positive solution to the quadratic equation 0 = 2x2 + 3x – 8? Quadratic formula: x
OleMash [197]

ANSWER



x=1.39 to the nearest hundredth.



EXPLANATION



We have the equation,



0=2x^2+3x-8



Which can be rewritten as



2x^2+3x-8=0

The question demands the use of the quadratic formula.

Comparing this to the general quadratic equation;

ax^2+bx+c=0


a=2,b=3,c=-8


The quadratic formula is given by;


x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}


We now substitute all the values in to the formula;


x=\frac{-3\pm\sqrt{(3)^2-4(2)(-8)}}{2(2)}

We simplify to obtain;

x=\frac{-3\pm\sqrt{9+64}}{4}


x=\frac{-3\pm\sqrt{73}}{4}


We now split the plus or minus sign to obtain;


x=\frac{-3-\sqrt{73}}{4}


This implies that;


x=-2.89

Or

x=\frac{-3+\sqrt{73}}{4}


This will evaluate to;


x=1.39

Hence, the positive solution rounded to the nearest hundredth is

x \approx 1.39

6 0
4 years ago
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Draw a model that shows 1.7
Ne4ueva [31]
This is how it would look like, hope that this is not too late to help you yet! Have a great day!

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