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alex41 [277]
3 years ago
15

Plz help solve this question thxxx

Mathematics
1 answer:
dexar [7]3 years ago
5 0

Step-by-step explanation:

replace × in the expression with - 4 and solve it

like

2(-4)^4-(-4)^2+1

512-16+1

= 497 remainder

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The drama club sold 65 fewer adult tickets at $5 each than they did student tickets for $3 each. The total value of all the tick
dolphi86 [110]

Answer:

adults ticket sold= 60

student tickets =125

Step-by-step explanation:

So we need to make a system of equations. Lets say the variable a stands for adults tickets and the variable s stands for student tickets. Our first equation is going to be

s-a=65

that is because there are 65 more student tickets than adults.

the second equation is going to be

3s+5a=675

that is because the tickets will add up 675.

Now we have to make sure one of the variable cancels out when we add them together. So we have to multiply the first equation by 5.

5[s-a=65]

3s+5a=675

So then we end up with

5s-5a=325

3s-5a=675

We need to add them together and we end up with.

8s=1000

We need to divide by 8

s then equals 125.

So there are 125 students tickets.

We now plug 125 back into one of the equations. To make things easy lets to the first equation.

s-a=65

125-a=65

move the 125 over

-a=-60

multiply by a negative

a=60

So you have 60 adults tickets

4 0
3 years ago
A man selling computer parts realizes that when
jenyasd209 [6]
The seller must charge a one-time fee:
y=one-time fee
x=profit for each computer part
we would have to compute the following system of equations:
y+16x=$1700
y+56x=$4300

We can solve this system by substitution method

y+16x=$1700     ⇒y=$1700-16x
<span>y+56x=$4300
</span>($1700-16x)+56x=$4300
40x=$4300-$1700
40x=$2600
x=$2600/40
x=$65

we find out the value of "y"

<span>y=$1700-16x
</span>y=$1700-16($65)
y=$1700-$1040
y=$660
if we would sell 30 computers parts the profit would be: 30x+y
profit if the man sells 30 computers parts=30($65)+$660=$2610

answer: his earning will be $2610

7 0
3 years ago
Find the missing side. It’s trigonometry, and I’ve tried this 5 times.
GenaCL600 [577]
That triangle's upside down but the usual rules hold.

We know the side opposite the 39 degree angle is 10 m and we're asked for the adjacent side.  The unlabeled side is the hypotenuse.

That's tangent:

\tan 39^\circ = \dfrac{10}{x}

x = \dfrac{10}{\tan 39^\circ} \approx 12.35 \textrm{ m}

Answer B

4 0
3 years ago
Is it true w is the set of (s,w,n,t,c)
umka21 [38]

Answer:

{w} is the SUBSET of   {s,w,n,t,c}

Step-by-step explanation:

SUBSET: Any set  P is called a SUBSET of a set Q is ALL ELEMENTS of P are in the set Q.

i.e P ⊂ Q

Here, the given set  Q  =  {s,w,n,t,c}

Also, set P = {w}

Now,as the element w of set P is also an element of set Q.

⇒ P is the SUBSET of  Q

⇒ P ⊂ Q

⇒  {w} ⊂  {s,w,n,t,c}

Hence,   {w} is the SUBSET of   {s,w,n,t,c}.

5 0
4 years ago
The mass of a bacterial culture doubles every 4 days. If the initial sample is 5 mg: a) How much will you have after one week (7
jeyben [28]

Answer:

For me i got this.  A) = 16.846mg B) 24 days I am also in summer school for toronto schoolboard.  I used the formula like how it said so should be good.

Step-by-step explanation:

A)

P(t) = Po(2)x^\frac{t}{d} \\=5(2)^\frac{7}{4} \\=16.817mg

B)

320=5(2)^\frac{t}{4}\\ 64=2^\frac{t}{4}\\2^6=2^\frac{t}{4}\\6=\frac{t}{4}\\(4)6=t \\t=24 days

8 0
3 years ago
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