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skelet666 [1.2K]
4 years ago
10

I need help with all of these plz some one help

Mathematics
1 answer:
Vitek1552 [10]4 years ago
4 0
1. f(5)=-39

2. g(-2)= -21

4. f(7)=19

9. x=7

Please vote my answer brainliest. thanks!
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What is the value of xin the diagram?<br><br> A. 9<br> B. 8<br> C. 7<br> D. 6
RoseWind [281]

Answer:

7

Step-by-step explanation:

The ratio of the similar triangles is

14       49

---- = ------

2          x

Using cross products

14x = 2*49

14x = 98

Divide by 14

14x/14 = 98/7

x =7

7 0
3 years ago
Help me
Komok [63]

Answer:

system of equations are

y=53x + 10, y=55x

Step-by-step explanation:

y=mx+b where x is the number of tickets purchased and y is the total cost.

We need to frame the equation for each option

Option 1: $53 for each ticket plus a shipping fee of $10

1 ticket cost = 53

So x tickets cost = 53x

shipping fee = $10 so b= 10

So equation becomes y=53x + 10

Option 2: $55 for each ticket and free shipping

1 ticket cost = 55

So x tickets cost = 55x

shipping fee =0 so b= 0

So equation becomes y=55x

5 0
2 years ago
Angle x is an acute angle in a triangle. If cos x=4/5, then the sin x=
Pepsi [2]
The answer is 3/5 because u need to find the missing side in order to find sin

8 0
3 years ago
Read 2 more answers
Omgggg help me for brainly what’s 4 x 5 divided by 2
yanalaym [24]

Answer:

10

Step-by-step explanation:

\frac{4 x 5}{2}

4 x 5 = 20

\frac{20}{2} = 10

3 0
3 years ago
Read 2 more answers
Write the quadratic equation whose roots are 3 and -5, and whose leading coefficient is 2.
Rainbow [258]

\begin{cases} x=3\implies &x-3=0\\ x=-5\implies &x+5=0 \end{cases}\qquad \implies\qquad a(x-3)(x+5)=\stackrel{0}{y} \\\\\\ a(\stackrel{F~O~I~L}{x^2+2x-15})=y\implies \stackrel{\textit{leading coefficient of 2}}{2(x^2+2x-15)}=y\implies 2x^2+4x-30=y

Check the picture below.

5 0
2 years ago
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