Could someone help me with these.

Answers

Answer 1

Answer: #4-5, all you're doing is plugging in whatever they give you. Ex: 2(-3+2) to the 2nd power. Go to y= in the calculator and see how the graphing looks. #1-2, you can cheat a lil (lol) using your calculator, but you have to know which one's which like where the axis of symmetry, vertex, etc is.

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Pls help asap find the inequality represented by the graph
3x2 − y3 − y3 − z if x = 3, y = −2, and z = −5.

Megan invested in ten bonds of total face value of $1.000, issued by Zen Corporation. The bonds paid 10 percer semiannual (5% every 6 months) interest till the maturity date, which of the following is the value of interest earned in the first installment on a single bond? A) $50 B) $100 C) $500 D) $90 E) $75

Answers

Answer:

$50 is the value of interest earned in the first installment on a single bond

Step-by-step explanation:

Applying Interest earned in the first installment on a single bond ;

= PRT/100

P = $1.000

R = 5%

T = 1

Plugging the values in the equation ;

Interest = 1000 x 5 x 1 /100

= $50, hence option A is the correct one.

solve the equation 5 x - 14 = x - 7. in your final answer, be sure to state the solution and include all of your work.

Answers

5x-14=x-7
+14 +14

5x=x+7
-x -x

4x=7
/4 /4

x=1.75

You can Drive your car 21.75 miles with 1 gallon of gasoline how many miles can you drive with 13.2 miles of gasoline

Answers

21.75miles=1gallon
xmiles=13.2gallons
easy, multiply the first equaiton by 13.2 to get the galons to match

21.75*13.2=287.1 miles=13.2 gallons
answer is 287.1 miles

You can drive 287.1 miles with 13.2 miles of gasoline

A metal sphere of radius 9 is melted and transformed into three identical spheres. What are the radii of these spheres?

Answers

Radius of identical spheres = 6.24

Step-by-step explanation:

Here volume remains constant.

Volume of big sphere = Volume of 3 identical small spheres.

Let r be the radius of small sphere,

We have

$(4)/(3)\pi * 9^3=3* (4)/(3)\pi * r^3\n\n3r^3=9^3\n\nr^3=243\n\nr=6.24$

Radius of identical spheres = 6.24

Jermaine buys T-shirts for $6 each and marks up the price by 45%.How much does Jermaine charge for each T-shirt (with the mark-up)?

Answers

Answer:

8.7

Step-by-step explanation:

6*1.45=8.7

40 = 90^2/16 sinx cosx find x

Answers

Answer:

x = 4.545

Step-by-step explanation:

Given the expression

$40=(90^2)/(16) sinxcosx\n\nCross\ multiplying;\n\n16*40 = 90^2 sinxcosx\n\n640 = 90^2 sinxcosx\n\n(640)/(8100) = sinxcosx\n from\ trig\ identity, sin2x = 2sinxcosx\nsinxcosx = sin2x/2\n$

$Hence, \ (640)/(8100) = (sin2x)/(2) \n\n(2*640)/(8100) = sin2x\n \n(1280)/(8100)=sin2x\n \n0.158 = sin2x\n\n2x = sin^(-1) 0.158\n\n2x = 9.09\nx = 9.09/2\nx =4.545$

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Three restaurants sell turkey sandwiches in a small town: Delicious Deli, Garden Fresh, and Uptown Eatery.Delicious Deli sells 5 turkey sandwiches for $20.00.Garden Fresh sells 2 turkey sandwiches for $8.50.Uptown Eatery sells 3 turkey sandwiches for $13.50. The graph shows Delicious Deli’s turkey sandwich sales, where x represents the number of turkey sandwiches sold, and y represents the total cost.