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babymother [125]
3 years ago
13

Do it for a brainly. (AND GE IT RIGHT) Please. Thank you.

Mathematics
1 answer:
Sauron [17]3 years ago
8 0
Opposite angles are equal so:
4x=5x-30
Solve this equation:
4x=5x-30
-x=-30
x=30 degrees
So 4x And 5x-30 is 120 degrees
You might be interested in
The ratio of bous to girls in the school is 1 to 4. If there are 20 girls, how many boys are there?
anyanavicka [17]

if there's 1 boy to every 4 girls, there's going to be 5 boys for every 20 girls

6 0
4 years ago
Read 2 more answers
–9.45 + 5.4d + 9.01 = –0.1d + 0.66
bulgar [2K]

Answer:

1.838181818181818

Step-by-step explanation:

5.4d + 0.1d = 0.66 + 9.45

5.5d = 10.11

d = 10.11 / 5.5

d = 1.838181818181818

7 0
3 years ago
Read 2 more answers
A box of fruit has three times as many nectarines as grapefruit. Together there are 64 pieces of fruit. Write the equation that
Basile [38]

Answer:

4g = 64

Step-by-step explanation:

Let n = the number of nectarines

and g = the number of grapefruit

We have two conditions that must be satisfied to represent the situation:

(1)         n = 3g

(2) n + g = 64

If you need one equation, we can substitute (1) into (2) and get

4g = 64

7 0
3 years ago
Please help i need this as soon as possible
masya89 [10]
It's a quadratic so the parent function will be
y = x ^{2}
We can see that it has been shifted to the right 5 units, which gives us a new function
y = (x - 5) ^{2}
It has also been shifted up 9 units:
y = (x - 5) ^{2}  + 9
But it has also been flipped across the y-axis which makes this the final change we need to do:
y =  - (x - 5) ^{2}  + 9
8 0
4 years ago
Why did I get this question wrong?
lord [1]

Step-by-step explanation:

∫₀³⁰ (r/V C₀ e^(-rt/V)) dt

If u = -rt/V, then du = -r/V dt.

∫ -C₀ e^u du

-C₀ ∫ e^u du

-C₀ e^u + C

-C₀ e^(-rt/V) + C

Evaluate between t=0 and t=30.

-C₀ e^(-30r/V) − -C₀ e^(-0r/V)

-C₀ e^(-30r/V) + C₀

C₀ (-e^(-30r/V) + 1)

I got the same answer.  Try changing the lowercase v to an uppercase V.

4 0
3 years ago
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