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Cerrena [4.2K]
3 years ago
12

Simplify 7 · 2² ÷ 4 ± 12

Mathematics
1 answer:
Romashka-Z-Leto [24]3 years ago
4 0
I believe the answer is
-5
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Write an equation perpendicular to x-3y=3 passes through (5,-9)
kherson [118]
3y=x-3
y=1/3x-1
Perpendicular slope: -3
y=-3x+b
Plug in the coordinates in the equation:
-9=-3(5)+b
-9=-15+b
4=b
Equation: y=-3x+4
Also, when finding the perpendicular slope you take the reciprocal of the original slope and make it negative if it is positive and make it positive if it’s negative.
8 0
3 years ago
How would you know if these are a positive or a negative 0,1) and (-3,6).
Ipatiy [6.2K]
Negative has the little dash in front of it

Thank you hope this helps
7 0
3 years ago
If VX = WZ = 40 cm and m∠ZVX = m∠XWZ = 22°, can ΔVZX and ΔWXZ be proven congruent by SAS? Why or why not?
Paul [167]

Answer: The ΔVZX and ΔWXZ are not congruent by SAS.

Explanation:

It is given that the VX = WZ = 40 cm and ∠ZVX = ∠XWZ = 22°.

Draw a figure as shown below,

According to the SAS rule of congruence, two triangles are congruent if two sides and their inclined angle is equal.

From the given figure it is easily noticed that in ΔVZX and ΔWXZ,

VX=WZ=40cm       (given)

\angle ZVX=\angle XWZ=22^{\circ}     (given)

XZ=XZ      (common side)

Since we have two sides and one angle is same. but we can not conclude that the ΔVZX and ΔWXZ are congruent by SAS, because the given angle is not the inclined angle of both equal sides.

Therefore, the  ΔVZX and ΔWXZ are not congruent by SAS.

4 0
2 years ago
Read 2 more answers
What is ​ 27/36 ​ as a decimal?<br><br> Enter your answer in the box.
tamaranim1 [39]

Awnser=0.75

You can first reduce this fraction by dividing both the numerator and denominator by the greatest common Factor of 27 and 36 using GFC(27,36)=9.

5 0
3 years ago
Read 2 more answers
A shoe store advertises that all shoes are on sale for 25% off the regular price. find the sale price of a pair of shoes that ha
DENIUS [597]
100-25=75
find 75% of the 85

percent means parts out of 100
75%=75/100=0.75

'of' means multiply

75% of 85 means
0.75 times 85=63.75


sale price is $63.75
4 0
3 years ago
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