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3 years ago

Find the lengths, if needed round to the nearest tenth

Mathematics

1 answer:

Elis [28]3 years ago

7 0

Answer:

Step-by-step explanation:

Triangle ABC is a right angle triangle that is made up of 2 right angle triangle.

To determine y, we would apply Pythagoras theorem which is expressed as

Hypotenuse² = opposite side² + adjacent side²

15² = y² + 12²

225 = y² + 144

y² = 225 - 144 = 81

y = √81 = 9

To determine z,

20² = z² + 12²

400 = z² + 144

z² = 400 - 144 = 256

z = √256 = 16

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Rzqust [24]

Answer:

A=(b^2)h/2

Step-by-step explanation:

7 0

2 years ago

Evaluate the expression (x + 3)(y - 2) , if x = -2, and y= 6

Butoxors [25]

Answer:

The answer is 4

Step-by-step explanation:

Given,

$x=-2,\,y=6$

Now, the expression

∴ $(x+3)(y-2)\\=>(-2+3)(6-2)\\=>(1)(4)\\4$

hope you have understood this...

pls mark my answer as the brainliest

6 0

3 years ago

What is the rate of change? X у 2. 0 3 0 4 0

Nimfa-mama [501]

Answer:

$m=0$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Slope Formula: $m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Find points from chart.

Point (2, 0)

Point (3, 0)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m. Rate of change and slope are identical.

Substitute [SF]: $m=\frac{0-0}{3-2}$
Subtract: $m=\frac{0}{1}$
Divide: $m=0$

7 0

3 years ago

Emma drank three 8 ounce cups of coffee. Each cup of coffee contains 130 mg of caffeine. Emma's body elimantes 13% of the caffei

Alekssandra [29.7K]

So ok

reduced by 13% each times 100-13=87 so 87 % of previous

so

t=time elapsed
I=initial amount
C=future amount
C=I(percentrate)^t

so
$C=130(0.87)^t$

8 0

3 years ago

Show all work for full credit.

SSSSS [86.1K]

Answer:

−1,−4,−9,−14,-19,-24,-29,-34,-39,-44,-49,-54

Step-by-step explanation:

Sum is 3 then 5

4 0

2 years ago