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ch4aika [34]
3 years ago
9

Guys, please help me.

Mathematics
1 answer:
yulyashka [42]3 years ago
3 0

Triangle ABC is similar to XYZ

Therefore, c times a scale factor is equal to z

Since c is 12 and z is 18, and we are trying to find the value of a, which is in the smaller figure, the scale factor from big to small is 12/18 or 6/9, Since I want to minimize x's value to get a, the scale factor must go from big to small, which is why the scale factor has to be 12/18 or 6/9. From there, to find a's value, i multiply 27 by 6/9 which is equal to 18. Therefore a=18

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17 points: Answer the question in the picture provided. Please hurry.
KatRina [158]
PEMDAS
yo might be tricked to do 2(-7) but that's multiplcation

so expoments
(-6)^2=36

now we have
36/12-2(-7)
mulitipictioan or division whicever comes first
division
36/12=3
multiplcation 2(-7)=-14
now we have
3-(-14)
3+14
17
answer is 17
8 0
3 years ago
What is this!!!!!!!!!!!!
Karo-lina-s [1.5K]

Answer:

MARK ME BRAINLIEST!! THANKS BOO!!!!!!!!!!!

Step-by-step explanation:

7 0
3 years ago
The sides of a cube are measured in whole centimeters. Which of the following could not be the cube's volume?
laila [671]
A: 100 cm³
This is because the others can be multiplied by something 3 times to get it, but A can not.

6 0
3 years ago
Read 2 more answers
How many solutions does the system have?<br> y=-2x -4 <br> y=3x + 3
baherus [9]

Answer:

x=−7/5and y=−6/5

Step-by-step explanation:

Step: Substitute−2x−4foryiny=3x+3:

y=3x+3

−2x−4=3x+3

−2x−4+−3x=3x+3+−3x(Add -3x to both sides)

−5x−4=3

−5x−4+4=3+4(Add 4 to both sides)

−5x=7

−5x

−5

=

7

−5

(Divide both sides by -5)

x=−7/5

7 0
3 years ago
A central angle theta in a circle of radius 7 m is subtended by an arc of length 8 m. Find the measure of theta in degrees. (Rou
gogolik [260]

Answer: In degrees , The measure of \theta=65.5^{\circ}

In radians , the measure of  \theta =\dfrac{8}{7}\text{ radians}.

Step-by-step explanation:

We know that the formula for length of arc is given by :-

l=\theta r

, where \theta = Central angle subtended by arc.

r= radius of the circle.

As per given , we have

Radius of circle : r=7 m

Length of arc : l=  8 m

Substitute these values in the above formula , we get

8=\theta (7)\\\\\Rightarrow\ \theta =\dfrac{8}{7}\text{ radians}

Hence, the measure of \theta =\dfrac{8}{7}\text{ radians}.

To convert it into degrees we multiply it with \dfrac{180^{\circ}}{\pi}

The measure of \theta =\dfrac{8}{7}\times\dfrac{180^{\circ}}{\pi}

=(\dfrac{8\times180}{7\times3.14})^{\circ}=65.5141037307^{\circ}

\approx65.5^{\circ}

Hence, the measure of \theta=65.5^{\circ}

8 0
3 years ago
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