3 years ago

Hopefully someone can help me with this question

Mathematics

1 answer:

Ksenya-84 [330]3 years ago

4 0

This is kinda hard for me sorry, at least I get points

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Select the statement that describes the following expression 6 x (2 + 7) − 9. (4 points)

stiv31 [10]

Answer:

Add all of them together

Step-by-step explanation:

You have to add the numbers and that gives you the sum

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3 years ago

What is the value of the expression |-7+ |-4/?

KonstantinChe [14]

Answer:

Step-by-step explanation:

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3 years ago

If m∠XWY = 20°, m∠XWZ = 40°, and XY = 16, what is the value of YZ?

Jobisdone [24]

YZ = 16. The triangles are congruent. This would be AAS so YZ = 16 because of CPCTC.

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3 years ago

Can someone please help me with this question? Thank you!

Goryan [66]

Answer: A

<u>Step-by-step explanation:</u>

$\stackrel\frown{XY}$ ≅ $\stackrel\frown{YZ}$

⇒ ∠XOY ≅ ∠ZOY

$\overline{XO}$ ≅ $\overline{ZO}$ since they are both a radius

$\overline{OY}$ ≅ $\overline{OY}$ based on reflexive property

∴ ΔXOY ≅ ΔZOY by SAS

So, $\overline{XY}$ ≅ $\overline{ZY}$ by CPCTC

ZY = 10.2 is given

so, XY = 10.2 by substitution property

4 0

4 years ago

In ΔFGH, f = 960 inches, g = 380 inches and h=820 inches. Find the measure of ∠F to the nearest degree.

WARRIOR [948]

Answer:

$m\angle F\approx 100^{\circ}$

Step-by-step explanation:

For any triangle, the Law of Cosines is given by $c^2=a^2+b^2-2ab\cos C$ , where all three variables are interchangeable.

Therefore, we have:

$f^2=g^2+h^2-2gh\cos F,\\960^2=380^2+820^2-2(380)(820)\cos F,\\\cos F=-\frac{131}{779},\\F=\arccos(-\frac{131}{779})\approx \boxed{100^{\circ}}$

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3 years ago