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Anastaziya [24]
2 years ago
7

What is the size of angle x ? And give a reason

Mathematics
1 answer:
Serggg [28]2 years ago
8 0

Answer:

x = 75°

Reason:

m∠EFG and m∠ABC are supplementary angles

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Be-1 where on the boat are registration numbers placed?
Neko [114]
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</span><span>The sequence of the numbers must be written </span>to both sides of the vessel<span> in a sequence such that it can be read from left to right. The mirror-reading on the vessel is not allowed.
</span>Now the numbers must be Displayed on the front portion of the boat that is the forward half of the vessel.
6 0
3 years ago
If m∠EBF = 6x + 4 and m∠CBF = 7x – 2, find m∠EBF.
olganol [36]

Answer:

78

Step-by-step

I hope it's helped

6 0
2 years ago
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In a video game, a bird is flung on a sling shot and follows a parabolic path. The path of the bird can be modeled by the equati
Novay_Z [31]

Answer:

The bird will take 0.88 seconds to reach a height of 40 feet in the air for the first time

Step-by-step explanation:

we have

h=-16t^2+55t+4

This is a vertical parabola open downward

The vertex represent a maximum

where

h is the height of the bird

t is the amount of time, in seconds, the bird had been in the air

For h=40 ft

substitute in the quadratic equation

40=-16t^2+55t+4

-16t^2+55t+4-40=0

-16t^2+55t-36=0

The formula to solve a quadratic equation of the form

ax^{2} +bx+c=0

is equal to

x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}

in this problem we have

-16t^2+55t-36=0

so

a=-16\\b=55\\c=-36

substitute in the formula

x=\frac{-55\pm\sqrt{55^{2}-4(-16)(-36)}} {2(-16)}

x=\frac{-55\pm\sqrt{721}} {-32}

x=\frac{-55+\sqrt{721}} {-32}=0.88\ sec

x=\frac{-55-\sqrt{721}} {-32}=2.56\ sec

therefore

The bird will take 0.88 seconds to reach a height of 40 feet in the air for the first time

3 0
3 years ago
Using addition rules, show how to add the two real numbers. 7 + (-14)
Debora [2.8K]
Hello there! Using the rules of addition, we can identify that when adding a positive to a negative number, the result shifts toward the positive side but takes the sign of the greater number. It will be demonstrated in this problem to simplify how problems like this are solved:

Step 1: Rewrite the problem

-14 + 7 = ?

Step 2: Since we’re adding 7 to a negative number, that means the negative number decreases by the quantity it’s being added by.

This means we would have to really subtract 7 from 14 to get 7.

Step 3: Keep the sign of the greater number

Since 14 is greater than 7, we will keep the negative sign in accordance.

Step 4: Simplify

-14 + 7 = -7

Using the rules of addition, we will find that -14 + 7 = -7. If you need additional help, let me know and I will gladly assist you.
5 0
1 year ago
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Someone Help me please
OLEGan [10]

Answer:

-1/2

Step-by-step explanation:

3 0
3 years ago
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