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dezoksy [38]
2 years ago
8

I need to find x can someone please help

Mathematics
2 answers:
Anit [1.1K]2 years ago
6 0
87 degrees is the right answer
PIT_PIT [208]2 years ago
4 0

Answer:

\boxed{\boxed{\tt x=87^{\circ}}}

Step-by-step explanation:

We know that a triangle has 3 sides, A triangle's interior angles add up to 180 degrees.

Now, let's write this as an equation:

\tt x^{\circ}+37^{\circ}+56^{\circ}=180^{\circ}

The missing angle is 180° minus the sum of the other two angles.

\tt x^{\circ}=180^{\circ}-56^{\circ}-37^{\circ}

Subtract the numbers:

\tt 180^{\circ}-56^{\circ}-37^{\circ}=87^{\circ}

\tt x=87^{\circ}

<u>________________________________</u>

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Find the equation of a parabola with a vertical axis and its vertex at the origin and passing through the point (-2, 3).
jonny [76]

Answer:

y=\frac{3}{4}x^2

Step-by-step explanation:

Hi there!

Because we're given the vertex of the parabola, we can determine its equation in vertex form:

y=a(x-h)^2+k where the vertex is (h,k)

Plug in the vertex (0,0)

y=a(x-0)^2+0\\y=a(x)^2\\y=a(x-0)^2+0\\y=ax^2

Now, we must solve for a. Plug in the given point (-2,3) and solve for a:

3=a(-2)^2\\3=4a\\\frac{3}{4} =a

Therefore, the value of a is \frac{3}{4}. Plug this back into y=ax^2:

y=\frac{3}{4}x^2

I hope this helps!

5 0
3 years ago
I am very not smart so can ya'll help me out on this one?
laila [671]

Answer:

H is not a solution

Step-by-step explanation:

plug each point into the equation and see which one does not work.

F(-3,6): 4(-3) + 3(6) = 6, -12 + 18 = 6, 6=6

G(0,2): 4(0) + 3(2) = 6, 6=6

H(1,-2): 4(1) + 3(-2) = 6, 4 - 6 =6, -2=6

J(3,-2): 4(3) + 3(-2) = 6, 12 -6 = 6, 6=6

H is not a solution

5 0
3 years ago
Plz help will be marked BRAINLIEST <br> Thanks!
Black_prince [1.1K]
We know that a = b and c = 30

Since b + 30 = 90, we know b = 60.
That means a = 60

a = 60
b = 60
c = 30
8 0
3 years ago
Read 2 more answers
Solve for x:<br><br> -42 = -7x
DENIUS [597]

Answer:

x=6

Step-by-step explanation:

-7x= -42

x= -42/-7

x=6

5 0
3 years ago
Read 2 more answers
Question 1 Hannan wants to estimate the number
Mama L [17]

Answer:

2000 eels

Step-by-step explanation:

Let us represent the total estimate of the eels = x

She returns the 50 eels to the lake.

The next day Hannah catches 400 eels, of these 400 eels, 10 are ringed.

To solve the above question, we have the following:

50/x = 10/400

Cross Multiply

10x = 50 × 400

x = 50 × 400/10

x = 2000 eels

Therefore, the total estimate of the eels in the lake = 2000 eels

4 0
3 years ago
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