MATHEMATICS HIGH SCHOOL

Help asap plz and thanks

Answers

Answer 1

Answer:

Answer:

-49

Step-by-step explanation:

I checked with a calculator so it should be right

Answer 2

Answer:

Answer:

-49

Step-by-step explanation:

my calculator confirmed it.

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During her first year of college, Sara put $2000 in the bank to save for a trip to Italy after graduation. The money earned 3% simple annual interest. After 4 years, how much money did she have in the bank for her trip?

Answers

Answer:

2,240

Step-by-step explanation:

Sara will have US$ 2,251.02 in the bank after 4 years for her trip to Italy.

Step-by-step explanation:

1. Let's review the data given to us for solving the question:

Investment of Sara during her 1st year of college = US$ 2,000

Duration of the investment = 4 years

Annual interest rate = 3%

2. Let's find the future value of this investment after 4 years, using the following formula:

FV = PV * (1 + r) ⁿ

PV = Investment of Sara during her 1st year of college = US$ 2,000

number of periods (n) = 4

rate (r) = 3% = 0.03

Replacing with the real values, we have:

FV = 2,000 * (1 + 0.03) ⁴

FV = 2,000 * (1.03) ⁴

FV = 2,000 * 1.12550881

FV = 2,251.02

Sara will have US$ 2,251.02 in the bank after 4 years for her trip to Italy. Later you round the answer and that gives you 2,240

plz mark me brainliest

a lotStep-by-step explanation:

Determine if triangle XYZ with coordinates X(1, 1), Y(5, 6), and Z(6, 2) is a right triangle.

Answers

Answer:

Yes.

Step-by-step explanation:

If you graph it you can see that they all the points match up to the perfect right triangle. You may have to rotate it to see it though. Point Z is the angle of the triangle that is the corner of the 90 degree triangle.

How do you solve -8+3x <-17x+17 for graphing?

Answers

-8+3x < -17x+17
-17x
___________
-8+(-14x) < 17
-8
________________
-14x < 9

    -8 + 3x < -17x + 17
   + 17x + 17x
-8 + 20x < 17
+ 8    + 8
      20x < 25
   20    20
      x < 1.25
      x > 1.25

Are points A, B, and E are collinear if No why if Yes Why

Answers

Its No because they dont fall on the same line.

Step-by-step explanation:

Find the slope of the line contain the given pair of points (-6,4) and (1,0)

Answers

$(-6,4) \nx_1=-6 \ny_1=4 \n \n(1,0) \nx_2=1 \ny_2=0 \n \n\hbox{the slope}=(y_2-y_1)/(x_2-x_1)=(0-4)/(1-(-6))=(-4)/(1+6)=-(4)/(7)$

The slope is -4/7.

$m = ( y_(2) - y_(1))/( x_(2) - x_(1))$
$m = (0 - 4)/(1 - (-6))$
$m = (0 - 4)/(1 + 6)$
$m = (-4)/(7)$

Identify the percent of change as an increase or decrease. Then find the percent of change, rounding to the nearest tenth of a percent, if necessary.60 cars to 24 cars

Answers

Answer:

-60% decrease

Step-by-step explanation:

60 is the old value and 24 is the new value.

percent change = $(new - old)/(|old|)$ x 100%

so for this problem, you can substitute the values given in the formula:

percent change = $(60-24)/(|60|)$ x 100% = $(-36)/(60)$ x 100% =

-60% (decrease)