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2 years ago

HELPPPPPP PLEASEEEEEEE

Mathematics

1 answer:

frez [133]2 years ago

5 0

Answer:

It has been a long time since I was even thinking about this, but I got 33 for the first one and I know how you feel, stay strong, you have a long time until you are finished

Step-by-step explanation:

(this might and probobly is wrong)

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The perimeter of a rectangle is 150cm. The length is 15cm greater than the width. Find the dimensions

ANEK [815]

150/4 = 37.5cm. You divide by four because there are four sides on a rectangle. But 37.5 is the cm of a square. Since it says one of the sides is 15cm greater, you subtract 37.5 - 15 = 27.5cm on 2 of the width. While the other 2 lengths are greater than the width by 15 cm, so you add 15 to 37.5 which gives you 52.5cm. So the 2 width are 27.5cm and the length is 52.5cm.

7 0

3 years ago

A business person invested $3600.00 in stock .When he sold the stock he made $30.00 in profit for each share of stock he purchas

Usimov [2.4K]

Given that the total profit is <u>$2400.00</u> and he made <u>$30.00</u> in profit for each share.

Number of shares = $2400 ÷ 30 = 80

Answer: He bought 80 shares

5 0

3 years ago

Which statement is true about the equations –3x + 4y = 12 and x – y = 1?

Firlakuza [10]

-3x + 4y = 12
x - y = 1....x = y + 1

-3(y + 1) + 4y = 12
-3y - 3 + 4y = 12
-3y + 4y = 12 + 3
y = 15

x - y = 1
x - 15 = 1
x = 1 + 15
x = 16

one solution (16,15)

6 0

3 years ago

Using the primary trigonometric formulas you learned in Lesson 1, explain why the equation cos q = 1.4 has no solutions.

AysviL [449]

Answer:

see explanation

Step-by-step explanation:

For the equation to have solutions , then

- 1 ≤ cosq ≤ 1

Since cosq = 1.4 ( out with limits )

Then the equation has no solutions

8 0

3 years ago

You are dealt two cards successively (without replacement) from a shuffled deck of 52 playing cards. Find the probability that t

icang [17]

Answer:

The probability that the first card is a Heart and the second card is a Spade is 0.064.

Step-by-step explanation:

A standard deck of 52 cards is shuffled and two cards are drawn without replacement.

The denominations of the cards are as follows:

Spades (S) = 13

Hearts (H) = 13

Diamonds (D) = 13

Clubs (C) = 13

Compute the probability of selecting a Heart first as follows:

$P(H)=\frac{13}{52}=0.25$

Compute the probability of selecting a Spade second as follows:

$P(S)=\frac{13}{51}=0.255$

Since the two cards are selected without replacement the second draw is independent of the other.

Then the probability that the first card is a Heart and the second card is a Spade is:

$P(1st\ H\cap 2nd\ S)=P(H)\times P(S)$

$=0.25\times 0.255\\=0.06375\\\approx 0.064$

Thus, the probability that the first card is a Heart and the second card is a Spade is 0.064.

4 0

3 years ago