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Elden [556K]
3 years ago
12

Solve: 51 ÷ [(-15) + (-2)

Mathematics
1 answer:
kari74 [83]3 years ago
3 0
Dude at the top correct
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2x^2 -8x + 1 = 0 solving using quadratic formula round to the nearest 10
Mazyrski [523]

Answer:

x=0.129171

x=3.87083

Step-by-step explanation:

5 0
3 years ago
Which measurement is closest to the measure of segment W Z?
noname [10]
Like XZ divides the cord YV into two congruent parts (YW=5.27 cm=WV), this segment XZ must be perpendicular to the segment YV, then the angle XWY in triangle XWY is a right angle (90°) and the triangle XWY is a right angle.

We can apply the trigonometric ratios in triangle XWY:
Hypotenure: XY
sin 44°=(Opposite leg to 44°)/(hypothenuse)
sin 44°=YW/XY
sin 44°=(5.27 cm)/XY
Solving for XY. Cross multiplication:
sin44° XY=5.27 cm
Dividing both sides of the equation by sin 44°:
sin 44° XY / sin 44° = (5.27 cm)/sin 44°
XY=(5.27/sin 44°) cm
XY=(5.27/0.694658370) cm
XY=7.586462929 cm

This value XY is the radius of the circle, then:
XZ=XY→XZ=7.586462969 cm

tan 44°=(Opposite leg to 44°) / (Adjacent leg to 44°)
tan 44°=YW/XW
tan 44°=(5.27 cm)/XW
Solving for XW. Cross multiplication:
tan 44° XW=5.27 cm
Dividing both sides of the equation by tan 44°:
tan 44° XW / tan 44°=(5.27 cm)/tan 44°
XW=(5.27/tan 44°) cm
XW=(5.27/0.965688775) cm
XW=5.457244753 cm

WZ=XZ-XW
WZ=7.586462969 cm-5.457244753 cm
WZ=2.129218216 cm
Rounded to 2 decimal places:
WZ=2.13 cm

Answer: The <span>measurement is closest to the measure of segment WZ is
2.13 cm</span>
6 0
3 years ago
Use the order of operations to find the value of the following expression.
Maksim231197 [3]
The answer to your question is 2
5 0
3 years ago
Read 2 more answers
HEEEEELLLLLLLPPPP WITHHHHHH MATHHHHH
ale4655 [162]

ANSWER:

∠1 = ∠4 (Vertically opposite angle).

∠1 = ∠5 (Corresponding angle).

∠1 = ∠8 (Alternate exterior angle).

So, ∠4 , ∠5 and ∠8 are congruent to ∠1.

6 0
3 years ago
Read 2 more answers
What is 20 times 4 thousand
s344n2d4d5 [400]

Answer:

80,000

Step-by-step explanation:

Hope I helped. please mark brainiest.

4 0
3 years ago
Read 2 more answers
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