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Gnom [1K]
3 years ago
9

WHERE DID CAROLYN MESS UP?

Mathematics
1 answer:
Anuta_ua [19.1K]3 years ago
6 0

Answer:

line 2 of her working

Step-by-step explanation:

when multiplying the brackets out it is a negative times posative so she should have wrote -4 not +4

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Z1 and Z2 are complementary. The mZ1 = 25°. What is the mZ2?​
Elina [12.6K]

Answer:

<h2>65°</h2>

Step-by-step explanation:

Complementary means that the two angles add to 90 degrees. Since we know the measure of one angle, we will subtract 25 from 90 to get 65 degrees for angle 2.

3 0
3 years ago
PLEASE HELP!!! ASAP!!!
pishuonlain [190]

Answer:

28 units²

Step-by-step explanation:

→ Work out the size of the triangle if it was a full rectangle

Height = 4 and Base = 2

→ Work out area of triangle

0.5 × Height × Base ⇒ 0.5 × 4 × 2 ⇒ 2 × 2 ⇒ 4

→ Minus the area of the triangle from the "imaginary full' rectangle

Area of rectangle = Length × Width ⇒ 8 × 4 ⇒ 32

32 - 4 = 28

3 0
3 years ago
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If a pound of ham costs $5.25, what is the approximate cost of 7
stiks02 [169]
The answer is B.$36.75
7 0
3 years ago
What is 8.7495980 rounded to the hundreds
devlian [24]

Answer:

8.75

Step-by-step explanation:

Because the thousandths place is over five, you round up to the next number (:

4 0
3 years ago
What principal invested at 8% compounded continuously for 4 years will yield $1190?
zhuklara [117]
For continuously compounded interest:

Amount = Principle * e^(rate * time)

A rate of 8% converted to a decimal value: r=0.08
With time t=4
and amount 1190

Plug all these values in,

1190 = Principle * e^(0.08 * 4)

And use your calculator to solve for the principle.
Maybe we'll call it P to make things easier.

1190 = P * e^(0.08 * 4)
1190 = P * 1.377

The principle is being multiplied by this 1.377,
divide by 1.377 to undo the multiplication.

864.11735 = P

7 0
3 years ago
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