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noname [10]
3 years ago
6

On a given morning the temperature was 71°F. The temperature dropped 5°F and then rose 8°F. How much does the temperature need t

o rise or fall to return to the initial temperature of 71°F?
Mathematics
2 answers:
professor190 [17]3 years ago
7 0

Answer:

Step-by-step explanation:

Temperature needs to fall by 3 degrees

morpeh [17]3 years ago
4 0

Answer:

  fall 3°

Step-by-step explanation:

To return to the same value, the sum of rises must be the same as the sum of falls. The temperature must fall 3 °F for the total of falls to be 8 °F, the same as the rise.

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on Monday you buy two apples and three oranges for a total of $14 on Tuesday you buy four apples and five oranges for $24 what d
exis [7]
Equation=2a+3b=$14
=4a+5b=$24

Multiply the first equation by 4 and the second by 2 to get the value of b....
8a+12b=56 -
8a+10b=48
2b=8
b=$4
If the price of an orange is $4 we can now find the price of an apple by
.................2a+(3*$4)=$14
............2a+12=14........2a=2
a=1
So the cost of an apple is $1 and that of an orange is $4
......Hope it helps you
4 0
3 years ago
Please help! enter a range of values for x:
myrzilka [38]

Answer:

Step-by-step explanation:

using sine formula

let ∠ADB=y

then ∠CDB=180-y

∠DAB =180-(35+y)

\frac{AB}{sin~y} =\frac{12}{sin ~35}} \\AB=\frac{12 sin y}{sin 35} \\\frac{BC}{sin(180-y)} =\frac{4x-4}{sin 20 } \\\frac{BC}{sin y} =\frac{4x-4}{sin 20} \\BC=\frac{(4x-4)sin y}{sin 20} \\But~AB=BC (given)\\\frac{12 sin y}{sin 35} =\frac{(4x-4)sin y}{sin 20} \\\frac{4x-4}{sin 20} =\frac{12}{sin 35} \\4(x-1)=\frac{12 sin 20}{sin35} \\x-1=\frac{3 sin 20}{sin35} \approx 1.789\\x \approx 2.789

3 0
3 years ago
a builder finds some unlabeled dimensions on a blueprint, and no scale is shown. A 15-ft wall that has already been built measur
garri49 [273]

it would be a 25 ft wall

6 0
3 years ago
Compare the functions shown below:<br><br> Which function has the greatest maximum y-value?
solmaris [256]
Answer: It's a tie between f(x) and h(x). Both have the same max of y = 3

The highest point shown on the graph of f(x) is at (x,y) = (pi,3). The y value here is y = 3.

For h(x), the max occurs when cosine is at its largest: when cos(x) = 1. 
So,
h(x) = 2*cos(x)+1
turns into
h(x) = 2*1+1
h(x) = 2+1
h(x) = 3
showing that h(x) maxes out at y = 3 as well

--------------------------------

Note: g(x) has all of its y values smaller than 0, so there's no way it can have a max y value larger than y = 3. See the attached image to see what this graph would look like if you plotted the 7 points. A parabola seems to form. Note how point D = (-3, -2) is the highest point for g(x). So the max for g(x) is y = -2

3 0
3 years ago
Read 2 more answers
For the right triangle shown, which expression represents the length of CA?
Nataly [62]

Answer:

  b. 5tan(25°)

Step-by-step explanation:

The tangent function gives the ratio between the side opposite and the side adjacent to the angle. That is ...

  tan(25°) = ?/5

Multiplying by 5 solves the equation:

  ? = 5·tan(25°)

6 0
3 years ago
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