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2 years ago

Can someone help me with these questions, don’t mind the answers written already

Mathematics

1 answer:

Rina8888 [55]2 years ago

8 0

Answer:

a) x value is -2, min is -3(if thats y)

b) x value is 3, max is 21(if thats y)

Step-by-step explanation:

yes you do quadratic formula and such :)

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The formula for a trapezoid relates the area A, the two bases, a and b, and the height, h. A=(a+b)/2 h Solve for a.

yKpoI14uk [10]

Answer:

$a=\frac{2A}{h}-b$

Step-by-step explanation:

Hello, I think I can help you with this.

According to the information provided in the problem, the area of a trapezoid is given by

$A=\frac{a+b}{2} *h\\$

Step 1

solve for a, it means isolate a

$A=\frac{a+b}{2} *h\\divide\ both\ sides\ by\ h\\\\\frac{A}{h}= \frac{\frac{a+b}{2} *h}{h} \\\frac{A}{h}=\frac{a+b}{2}\\\\Now, multiply\ both\ sides\ by\ two\\\\ 2*\frac{A}{h}=2*\frac{a+b}{2}\\2*\frac{A}{h}=a+b\\\frac{2A}{h}=a+b\\\\subtract\ b\ for\ both\ sides\\\frac{2A}{h}-b=a+b-b\\a=\frac{2A}{h}-b$

Have a good day.

5 0

3 years ago

A rectangular parking lot is enclosed by concrete barriers 5 feet long. There are 160 barriers in total. Determine the maximum a

LuckyWell [14K]

Well you just multiply 5 by 160 and get 800ft

6 0

3 years ago

Compare the fractions. Which fractions is larger? (Your answer should be

lord [1]

Answer:

4/7

Step-by-step explanation:

4/7 = 36/63 - bigger

5/9 = 35/63

5 0

3 years ago

For each pair of numbers below, which is the number that is greater? Estimate how many times greater.

Ugo [173]

Answer:

17*10^8, about 4 times

7.839*10^6, about 4 times

8.5*10^8, about 2 times

6 0

3 years ago

Given no other restrictions, what are the domain and range of the following funtction? f(x)=x^2-2x+2

STALIN [3.7K]

Answer: Domain of the given function is all real numbers.

Range of the given function is {y | y>=1}

Step-by-step explanation:

The given function is a polynomial and the domain of any polynomial is all the real numbers because for any value of x, the function will have some value.

Hence, the domain will be all real numbers.

Range is the set of y values for which the function is defined.

This is a polynomial and to find the range, we will simplify the polynomial.

$f(x)=x^2-2x+2\\f(x)=(x-1)^2+1$

Therefore, for any value of x, f(x) ≥ 1

Hence, the range becomes {y | y ≥ 1}

8 0

3 years ago

Read 2 more answers