MATHEMATICS HIGH SCHOOL

-z2-z-19
Z=-7 what is the answer please

Answers

Answer 1
Answer: put\ the\ value\ of\ z=-7\ to\ the\ expression\ -z^2-z-19:\n\n-(-7)^2-(-7)-19=-49+7-19=\boxed{-61}
Answer 2
Answer: -z² - z - 19
-(-7)² - (-7) - 19
-(49) + 7 - 19
-49 + 7 - 19
-42 - 19
-61

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In a right triangle, find the length of the side not given, if a=8 and b=15

Answers

to find the length of a missing side of a right triangle you have to use the Pythagorean theorem. so 8*8=64 15*15=225 so to find side c you add the two answers 225+64 and the answer is and find the square root which is 17. Hope this helps
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(8)² + (15)² = c²
   64 + 225 = c²
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             17 = c

What is a proportional relationship

Answers

The relationship between two datas which are proportional to each other in some manner is called "Proportional Relationship".

For example, oranges are sold in a bag of 5 for $2.The ratio of oranges to their cost is 5:2 or . If I bought 20 oranges, Icould set up a proportion to determine my cost.

HELP ME PLZ1 The ratio of teachers to students is 1 to 26. Find all equivalent ratios. *
a. 52 to 2
b. 11 to 286
c. 26 to 1
d. 5 to 130
e. 0.25 to 6.5
f. 1/2 to 19 1/2.

Answers

B,D, E
B because 11*26=286 and 1*11=11
D because 5*26=130 and 1*5=5
E because 26*.25=6.5 and 1*.25=.25
It isnt a or c because 1:26 does not equal 26:1

the formula for the area of a rectangle is a=lw , where a is the area, l is the length, and w is the width . a rectangular garden has a length of 10 ft. its width is 6 ft less than its length. what is the area of the garden? 14 ft² 16 ft² 40 ft² 60 ft²

Answers

a=lw
l=10, w=6
a=10x6
a=60ft^2

so, the answer is 60ft^2

Two sides of a triangle are 15 mm and 10 mm. The perimeter of the triangle is 35 mm. What's the third side?

Answers

35mm-10mm-15mm=10mm
The third side is therefore 10mm in length

Once Isabel rented the warehouse space, she decided to post ads on several social media sites to advertise her online bookstore. Let m represent the number of months the ads have been posted. Isabel finds that the function below describes the number of books sold as a function of the number of months her ads have been posted. f(x) = 1000(∛x) + 1000 How many books were sold after 8 months? (3 points)



Graph the function. (10 points)

Answers

The solution is 3000 books

The number of books sold after 8 months is given by the equation

f ( 8 ) = 3000 books

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is

f ( x ) = 1000 ∛( x ) + 1000   be equation (1)

Let the number of months be represented as x

Now , the number of books sold by Isabel for 8 months is given by the equation ,

when x = 8

Substitute the value of x = 8 in the equation , we get

f ( x ) = 1000 ∛( x ) + 1000

f ( 8 ) = 1000 ∛8 + 1000

f ( 8 ) = 1000 ( 2 ) + 1000

f ( 8 ) = 2000 + 1000

f ( 8 ) = 3000 books

Therefore , the value of f ( 8 ) is 3000 books

Hence , the number of books sold is 3000 books

To learn more about equations click :

brainly.com/question/19297665

#SPJ2
1. Number of books that were sold after 8 months:
f(8)=1000 \sqrt[3]{8}+1000 f(8)=1000 * 2 + 100 = 2000+1000=3000
Answer: 3000 books
2. Graph of the function is in attachment.
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