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Solnce55 [7]
2 years ago
6

Solve the following: 1) The original cost of an umbrella was $28 but is now on sale for $21. Find the percent of the discount.​

Mathematics
2 answers:
frutty [35]2 years ago
7 0

Answer:

7%

Step-by-step explanation:

Alex73 [517]2 years ago
4 0
It’s a 4% discount off the original cost
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Given right triangle ABC with right angle C, and sin A = ¼. Which of the following expressions are also equal to ¼?
BaLLatris [955]

Answer:

cos(A)

Step-by-step explanation:

5 0
2 years ago
Recent studies indicate that the average surface temperature of the
andreev551 [17]

Answer:

Slope : The rate of increase of temperature on the earth's surface is 0.02°C per year since 1900.

T-intercept : 8.5 represents the temperature in °C of the earth's surface in the year 1900.

Step-by-step explanation:

The average surface temperature of Earth rising steadily. Scientists have modeled the temperature by the equation, T = 0.02t + 8.50 where t represents years since 1900 and T is the temperature in ◦C.

Now, the slope of the model equation is 0.02 which means the rate of increase of temperature on the earth's surface is 0.02°C per year since 1900.

Again, the T-intercept i.e. 8.5 represents the temperature in °C of the earth's surface in the year 1900. (Answer)

7 0
3 years ago
Please please help me out
mihalych1998 [28]

Answer:

A trinomial of degree 5

Step-by-step explanation:

A monomial has only 1 term

A binomial has 2 terms

A trinomial has 3 terms

4x^{5} + 3x³ - 7x ← has 3 terms and is therefore a trinomial

The degree of a polynomial is determined by the largest exponent of the variable in the expression

4x^{5} is the term with the largest exponent in the expression

Hence a polynomial of degree 5

6 0
3 years ago
What is the radius of a circle with an area of 78.5 cubic inches? Use 3.14 for pi. Enter your answer in the box.
UkoKoshka [18]

\bf \textit{area of a circle}\\\\ A=\pi r^2~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ A=78.5 \end{cases}\implies 78.5=\pi r^2\implies \cfrac{78.5}{\pi }=r^2 \\\\\\ \sqrt{\cfrac{78.5}{\pi }}=r\implies 4.9987\approx r

5 0
3 years ago
Read 2 more answers
Need help with this problem.
drek231 [11]

\cfrac{6^3\cdot 15^3}{(7^0)^3}\implies \cfrac{(6\cdot 15)^3}{(1)^3}\implies \cfrac{90^3}{1}\implies 729000

6 0
1 year ago
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