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3 years ago

I don't understand these questions, could someone please help??

Mathematics

1 answer:

Vlad [161]3 years ago

8 0

Answer:

1. 1. c=75 b=105 d=105

1. 2. b=104 a=76 c=76

2. 1. c=62 b=118 d=118

2. 2. d= 120 a=60 c=60

4. 1. a= 90 b= 45

4. 2. c=90 b=15

I do not know the last one.

Step-by-step explanation:

You do the first four equations by knowing that the number that you do know across from it is going to be the same. Then you add them and subtract it from 360 and multiply that number by 2 and get the number for the other spots.

Four the 4 questions, you know that the box in the conure means that it is 90, so whatever other number you know plus 90 minces 180 is the number for b.

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Billy and I Angie are selling gift baskets at a craft fair their cost are $75 for the table and $12 per baskets they sell each b

dolphi86 [110]

20-12=8

8 divided by 75= 72

3 0

3 years ago

Read 2 more answers

Someone please help me to solve this questions......

wlad13 [49]

Answer:

1) Event A = 2/3

Event B = 1/2

2) 1/2

Step-by-step explanation:

Event A :

No. we need on dice = 4

Total numbers on dice = 6

Hence sample space of the event = 6

P( getting 4) = 4/6 = 2/3

Event B :

A coin has a head & a tail.

Hence sample space of the event = 2

But as we need tail only ,

P ( getting Tail ) = 1/2 [ if only tossed once ]

Total numbers on a die = 6

Total no. of odd numbers on die = 3 (∵ 1 , 3 & 5 are odd )

Sample space of this event = 6

P (getting an odd number) = 3/6 = 1/2

6 0

4 years ago

The right expression to calculate how much money will be in an investment account 14 years from now if you deposit $5,000 now an

Svet_ta [14]

Answer:

The expression to compute the amount in the investment account after 14 years is: <em>FV</em> = [5000 ×(1.10)¹⁴] + [3000 ×(1.10)⁸].

Step-by-step explanation:

The formula to compute the future value is:

$FV=PV[1+\frac{r}{100}]^{n}$

PV = Present value

r = interest rate

n = number of periods.

It is provided that $5,000 were deposited now and $3,000 deposited after 6 years at 10% compound interest. The amount of time the money is invested for is 14 years.

The expression to compute the amount in the investment account after 14 years is,

$FV=5000[1+\frac{10}{100}]^{14}+3000[1+\frac{10}{100}]^{14-6}\\FV=5000[1+0.10]^{14}+3000[1+0.10]^{8}$

The future value is:

$FV=5000[1+0.10]^{14}+3000[1+0.10]^{8}\\=18987.50+6430.77\\=25418.27$

Thus, the expression to compute the amount in the investment account after 14 years is: <em>FV</em> = [5000 ×(1.10)¹⁴] + [3000 ×(1.10)⁸].

4 0

3 years ago

Select the polynomial that is a perfect square trinomial.

Alina [70]

Answer:

16x^2 -8x +1

Step-by-step explanation:

The square of a binomial expands as ...

(a +b)^2 = a^2 +2ab +b^2

So, you need to look for a trinomial with first and last terms that are perfect squares and a middle term that is double the product of the roots of those terms.

This pattern matches ...

16x^2 -8x +1 = (4x -1)^2

6 0

3 years ago

Find the perimeter and area of the figure.

Slav-nsk [51]

Answer:

P=2 (a+b)=2•(7+15)=44
A= b h= 15•5=75

3 0

2 years ago