1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
daser333 [38]
4 years ago
9

Evaluate 5x if x= -5

Mathematics
1 answer:
Wittaler [7]4 years ago
5 0
-25

Tell me if you need an explanation
You might be interested in
Sally finds a coin with a radius of 1.5 centimeters and a thickness of 0.25 cm. It has a measured mass of 18.54 grams. How can S
mote1985 [20]

Answer:

Silver

Step-by-step explanation:

Find the volume of the coin

<u>Volume of a cylinder</u>

\textsf{V}=\sf \pi r^2 h \quad\textsf{(where r is the radius and h is the height)}

Given:

  • r = 1.5 cm
  • h = 0.25 cm

Substituting given values into the formula to find the volume:

\sf \implies V=\pi (1.5)^2(0.25)

\sf \implies V=0.5625 \pi \:cm^3

Find the density of the coin given it has a measured mass of 18.54 g

<u>Density formula</u>

\sf \rho=\dfrac{m}{V}

where:

  • \rho = density
  • m = mass
  • V = volume

Given:

  • m = 18.54 g
  • \sf V=0.5625 \pi \:cm^3

Substituting given values into the density formula:

\implies \sf \rho=\dfrac{18.54}{0.5625 \pi}

\implies \sf \rho=10.49149385\:g\:cm^{-3}

Given:

  • \textsf{Density of Lead}=\sf 11.3\:g\:cm^{-3}
  • \textsf{Density of Silver}=\sf 10.49\:g\:cm^{-3}

Therefore, as \sf \rho=10.49\:g\:cm^{-3} the coin is made from silver.

4 0
2 years ago
The plan of terrace is shown at right. the scale is 2 inches: 6 feet.
Orlov [11]
Sorry wish I could help but I need to see the picture to answer the question. Sorry  :-(
5 0
3 years ago
Write the equation in standard form for the circle with radius 9 centered at the origin.
amid [387]
The standard form of the equation of a circle of radius r, with (assuming centre h, k) is given as:

(X-h)^2 + (y-k)^2 = r^2

As we are required to write an equation in standard form for the circle with radius 9 centred at the origin.
Centre(h,k)=(0,0), r=9

Substituting these values into the standard form of the equation of a circle given above:

(X-0)^2 + (y-0)^2 = 9^2
X^2 + y^2 =81

The standard form is x^2 + y^2 =81

I’m pretty sure this is right
8 0
2 years ago
A small submarine starts at –1,080 feet in relation to sea level. Then it descends 8 feet per minute for 11 minutes. What expres
BARSIC [14]

Answer:

-1,080 + (-8)(11)

Step-by-step explanation:Well for one it has to be -1,080 becuase it already starts as a neagtive. So the answer has to -1,080 + (-8)(11) becuase you adding/mutpilying  8 x 11

6 0
4 years ago
PLZ HELP DUE TODAY. I WILL BE SO GRATEFUL 100 POINTS AND BRAINLIEST
motikmotik

Answer:

LCM:

7: 36

8: 6

9: 40

10: 15

GCF:

1: 10, sum is 140

2: 4, sum is 64

3: 14, sum is 84

4: 1, sum is 105

(This picture is hard to read but I am assuming that it is asking for exponents) (^ means exponent):

1: 8^7

2: 4^1

3: 10^4

Evaluating Each expression:

5: 41

6: 2

7: 27

8: 28

Algebraic expressions:

1: 5f-22

2: 48g

3: e/12

4: 3(m+7)

Please give Brainliest Answer! Thanks!

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • Which of the following are solutions to the equation below? Check all that apply. x2 + x - 20 = 0
    7·2 answers
  • Karen has $1.70 in coins. Karen has 8 coins, all of which are quarters or dimes.
    8·1 answer
  • The following graph is f(x) = sin(x), true or false?
    10·2 answers
  • 2 doctors is _______% of 25 doctors
    15·1 answer
  • What is the domain of the function g(x) = 52x? x &gt; 0 x &lt; 0 all real numbers all positive real numbers
    8·2 answers
  • A convertible is traveling at 45 miles per hour, and its wheels have a diameter of 48 inches. How many complete revolutions do t
    7·2 answers
  • Which is the solution set of 6x^2-24=0<br>○(-2,2)<br>○(-2)<br>○(2)
    6·1 answer
  • Need help solving for X
    5·1 answer
  • 16, excursionistas tienen Proviciones Para
    8·1 answer
  • What is 108 as a fraction of 648? Give your answer in its simplest form.
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!