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Lady bird [3.3K]
3 years ago
14

please help please help please please please please please please please please please please please please please please please

please please please please please please please please please please please please please please please please please please please please please please please don't wanna fail my test please help please help please​

Mathematics
1 answer:
7nadin3 [17]3 years ago
3 0
Answer:
1) -10^3 (-10 to the power of 3)
2) r^5 (pie to the power of 5)
3) 1/2^2 + x^3 (1/2 to the power of 2 + x to the power of 3)
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Solve Each Equation PLS SHOW WORK <br><br> |5k-8| / 10 = 2 <br><br> |5k-8| / 10 is a fraction btw
Shtirlitz [24]

Answer:

The maximum value of k = 5 ³/₅ and the minimum value of k = -2 ²/₅

Step-by-step explanation:

Given;

\frac{|5k-8|}{10} = 2\\\\|5k-8| = 20

Simplifying further;

5k - 8 = 20 ------- (1)

5k - 8 = -20------(2)

Solving equation (1)

5k - 8 = 20

5k = 28

k = 28 /5 = 5 ³/₅

Solving equation (2)

5k - 8 = -20

5k = -20 + 8

5k = -12

k = -12 / 5  = -2 ²/₅

Thus, the maximum value of k = 5 ³/₅ and the minimum value of k = -2 ²/₅

8 0
3 years ago
Gas mileage is the number of miles you can drive on a gallon of gasoline. A test of a new car results in 440 miles on 10 gallons
kkurt [141]
First you divide 440 by 10 to see the amount of miles you can drive on one gallon, which is 44, then multiply by 75 so 44*75= 3300

Your answer is 3300 miles


8 0
3 years ago
Which statements about mass are true?
viva [34]

Answer:

1=false 2=false 3=true 4=true 5=false 6=false

Step-by-step explanation:

5 0
2 years ago
Anyone can help me with math for solving for a side in the right triangles for khan academy
Elden [556K]

Answer:

7.45

Step-by-step explanation:

We are given a right triangle with one side length known and an angle know so we can use some trigonometry.

You need to find the hypotenuse so you are going to use either sine or cosine.

Since the adjacent from the angle is given (SOH-CAH-TOA) we can use cosine so,

cos(20) = 7/h

=>h = 7/cos(20)

=> 7.44924

=> 7.45

6 0
3 years ago
Given the function y = x2 + 2x - 8, what are the values of x when y = 3?
katen-ka-za [31]

Answer:

x =  - 1 + 2 \sqrt{3}

x =  - 1 - 2 \sqrt{3}

Step-by-step explanation:

{x}^{2}  + 2x - 8= 3

{x}^{2}  + 2x = 11

Complete the square

(\frac{2}{2} ) {}^{2}  = 1

so

{x}^{2}  + 2x + 1 = 11 + 1

{x}^{2}  + 2x + 1 = 12

( x + 1) {}^{2}  = 12

x + 1 =   \sqrt{12}

x =  - 1 +  \sqrt{12}

or

x + 1 =  -  \sqrt{12}

x =  - 1 -  \sqrt{12}

If you want it simplified, you could say

6 0
3 years ago
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