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olga nikolaevna [1]
3 years ago
12

Stuck on two. Plz help. Pre-all is hard

Mathematics
2 answers:
marissa [1.9K]3 years ago
7 0

#1. The square root of a number is 9 and -9

√(81) = 9 or -9

#2. Take the square root of 4,840 yards²

√(4840) = 69.57 yards

It's B, between 69 and 70 yards

aliina [53]3 years ago
5 0

\bf 1)~\hspace{7em}
\begin{array}{|l|ll}
\cline{1-1}
~\hfill \sqrt{x}=9~\hfill \\
\cline{1-1}\\
\pm \sqrt{x}=9\\\\
\sqrt{x}=\mp 9\\\\
~\hfill \text{\huge -9}~\hfill\\\\
\cline{1-1}
\end{array}
\\\\[-0.35em]
\rule{34em}{0.25pt}


\bf 2)
\\\\\\
\textit{area of a square}\\\\
A=s^2~~
\begin{cases}
s=length~of\\
\qquad a~side\\[-0.5em]
\hrulefill\\
A=4840
\end{cases}\implies 4840=s^2\implies \sqrt{4840}=s
\\\\\\
69.57\approx s~\hspace{5em}\boxed{69}\rule[0.35em]{7em}{0.25pt}\stackrel{\sqrt{4840}}{69.57}\rule[0.35em]{9em}{0.25pt}\boxed{70}

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OlgaM077 [116]
The correct answer is:
measurement of one angle and length of one side
8 0
3 years ago
The ordered pairs model an exponential growth function. (−1,21.875), (0,35), (1,56), (2,89.6) What is the function equation? f(x
Karolina [17]

Answer:

Given the ordered pairs, the exponential growth function would be represented by f(x)=35(1.6)^x.

Step-by-step explanation:

Exponential growth functions are represented by the following equation: f(x)=ab^x, where 'a'=initial value; 'b'=rate of growth; 'x'=independent value or time.  Given the points, we see that the values of 'x' increase by 1 each time and dividing two 'y' values (35/21.875; 56/35; 89.6/56) gives us a change of 1.6.  Rate is the change in y/the change in x, or 1.5/1, which is the value of 'b'. When 'x' is equal to 0, the value of 'y' is 35, so this represents the initial value, or 'a'.  Plugging in these values will give us the final equation f(x)=35(1.6)^x.

5 0
3 years ago
Geometry: fill in the blanks (ASAP!! It’s urgent)
stepladder [879]

5. m∠C = 95°

6. m∠C = 70°

7. The other acute angle in the right triangle = 70°

8. m∠C = 70°

9. m∠C = 60° [equilateral triangle]

10. Measure of the exterior angle at ∠C = 110°

11. m∠B = 70°

12. m∠Z = 70°

<h3>What are Triangles?</h3>

A triangle is a 3-sided polygon with three sides and three angles. The sum of all its interior angles is 180 degrees. Some special triangles are:

  • Isosceles triangle: has 2 equal base angles.
  • Equilateral triangle: has three equal angles, each measuring 60 degrees.
  • Right Triangle: Has one of its angles as 90 degrees, while the other two are acute angles.

5. m∠C = 180 - 50 - 35 [triangle sum theorem]

m∠C = 95°

6. m∠C = 180 - 25 - 85 [triangle sum theorem]

m∠C = 70°

7. The other acute angle in the right triangle = 180 - 90 - 25 [triangle sum theorem]

The other acute angle = 70°

8.  m∠C = 180 - 55 - 55 [isosceles triangle]

m∠C = 70°

9. m∠C = 60° [equilateral triangle]

10. Measure of the exterior angle at ∠C = 50 + 60

Measure of the exterior angle at ∠C = 110°

11. m∠B = 115 - 45

m∠B = 70°

12. m∠Z = 180 - 35 - 75

m∠Z = 70°

Learn more about triangles on:

brainly.com/question/25215131

#SPJ1

8 0
2 years ago
The pencil is 10 cm long and the cup is 8 cm tall. Find the diameter of the base of the cup?
vlada-n [284]
80 because when u do 10 times 8 it’s 80
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Plz help .......................
Makovka662 [10]
\frac{ 6\sqrt{2}}{ \sqrt{3} }

Multiply the square root of 3 by the square root of 2 and itself.
The 3 cancels itself out and then you get A
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3 years ago
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