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Zarrin [17]
2 years ago
6

The temperature today was 81F and at night it went down 11F. Which statement is

Mathematics
2 answers:
NikAS [45]2 years ago
8 0

Answer:

the last one is correct 81+(-11)

it would equal 70 degrees F

Georgia [21]2 years ago
8 0
The answer should be -81+(-11)
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triangle MNO is an equilateral triangle with sides measuring 16 units What is the height of the triangle?
fiasKO [112]

see the attached figure to better understand the problem

we know that

The equilateral triangle has three equal sides

so

in the equilateral triangle ABC

AB=BC=AC=16 units

the height of the triangle is the segment BD

in the right triangle BCD

Applying the Pythagorean Theorem

BC^{2} =BD^{2}+DC^{2}

solve for BD

BD^{2}=BC^{2}-DC^{2}

substitute the values

BD^{2}=16^{2}-8^{2}

BD^{2}=192

BD=\sqrt{192}\ units

therefore

<u>the answer is</u>

the height of the triangle is \sqrt{192}\ units


7 0
3 years ago
Read 2 more answers
Determine whether each sequence is a geometric sequence. If yes, then state the common ratio.
Snezhnost [94]

Answer:

This is a geometric sequence with a common ratio of -4

Step-by-step explanation:

Take the second term and divide by the first term

-4/1 = -4

Take the third term and divide by the second term

16/-4 = -4

Take the fourth term and divide by the third

-64/16 = -4

This is a geometric sequence with a common ratio of -4

3 0
3 years ago
In ΔDEF, the measure of ∠F=90°, the measure of ∠E=32°, and FD = 9.6 feet. Find the length of EF to the nearest tenth of a foot.
NeX [460]

Answer:

EF=15.4\ ft

Step-by-step explanation:

we know that

In the right triangle DEF

tan(E)=\frac{FD}{EF} ----> by TOA (opposite side divided by adjacent side)

substitute the given values

tan(32^o)=\frac{9.6}{EF}

solve for EF

EF=\frac{9.6}{tan(32^o)}=15.4\ ft

6 0
3 years ago
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kogti [31]
9.461*10^15 or 9,461,000,000,000,000 meters.
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3 years ago
Find an exact value. (2 points) cos 15°
aalyn [17]

Answer:

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3 0
3 years ago
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