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3 years ago

Given vectors a=(-1,-2), b=(-2,3), c=(3,-1), d=(-3,2) find the dot product of b and d.

Mathematics

1 answer:

goldfiish [28.3K]3 years ago

6 0

hope it helps u.........

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If there are 135 revolutions in 180 seconds how many revolutions in 40 seconds?

BartSMP [9]

Answer:

53.3 rotations

Step-by-step explanation:

135/180=x/40

solve by cross multiply

7 0

2 years ago

Three friends collected aluminum cans from the neighborhood to recycle in total they receive 300 cans many collected 90 Jim coll

spin [16.1K]

Given

Total cans = 300

Manny= 90

Jim =100

Bob=110

Now their percentage

Manny percentage

$\begin{gathered} manny=\frac{90}{300}\times100\text{ \%} \\ \\ Manny\text{ percentage=}\frac{90}{3}\text{ \%} \\ \\ Manny\text{ percentage =30 \%} \end{gathered}$

Jim Percentage

$\begin{gathered} Jim=\frac{100}{300}\times100\text{ \%} \\ Jim\text{ percentage=}\frac{1}{3}\times100\text{ \%} \\ Jim\text{ percentage=33.333\%} \end{gathered}$

Bob percentage

$undefined$

6 0

1 year ago

Katrina deposited $500 into a savings account that pays 4% simple interest. How much interest will she earn in 3 years if she ma

Dovator [93]

Answer: the amount of interest after 3 years is $60

Step-by-step explanation:

The formula for determining simple interest is expressed as

I = PRT/100

Where

I represents interest paid on the amount of money deposited.

P represents the principal or amount of money deposited.

R represents interest rate on the deposit.

T represents the duration of the deposit in years.

From the information given,

P = $500

R = 4%

T = 3 years

Therefore,

I = (500 × 4 × 3)/100

I = $60

4 0

3 years ago

Read 2 more answers

2 * 2 * 4 * 5 * 6 * 2 * 2 * 5 * 7 * 5 = ? will mark brainliest!

BaLLatris [955]

Answer:

336,000

Step-by-step explanation:

2 × 2 = 4 x 4 = 16 × 5 = 80 × 6 = 480 x 2 = 960 x 2 = 1920 × 5 = 9600 x 7 = 62700 × 5 = 336,000

3 0

2 years ago

5y-21=14<br><br>please help me I need the full method

SSSSS [86.1K]

5y-21=14

or, 5y = 14+21

or, 5y = 35

or, y = 35/5 = 7

Answer is 7.

7 0

2 years ago