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Novay_Z [31]
3 years ago
5

-404 find the reference angle

Mathematics
1 answer:
Montano1993 [528]3 years ago
7 0
I think it is -44 degrees
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For which nonnegative value of x is the expression 5+x/25-x^2
erica [24]

Answer:

Step-by-step explanation:

\frac{5+x}{25-x^2} >0\\=\frac{5+x}{(5+x)(5-x)} \\=\frac{1}{5-x} >0\\if~5-x>0\\or~5>x\\or x

8 0
3 years ago
Write the equation of the line that passes through (3, 4) and (2, −1) in slope-intercept form. y = 3x − 7 y = 3x − 5 y = 5x − 11
babymother [125]
Find the slope of the line first using \frac{y2 - y1}{x2 - x1}
(3, 4), (2, -1)
\frac{-1 - 4}{2 - 3}
\frac{-5}{-1} = 5

Now use y - y1 = m(x - x1) to make an equation in slope-intercept form. Plug the numbers into the formula.

y - (-1) = 5(x - 2)
y + 1 = 5x - 10
y = 5x - 11

The equation of the line in slope-intercept form would be y = 5x - 11.
3 0
3 years ago
Read 2 more answers
#20, what is this answer ?
Charra [1.4K]

Answer:

b = 2A/h

b = 6 inches

Step-by-step explanation:

A = \frac{1}{2} bh \\  \\ 2A =bh \\  \\  \purple{b =  \frac{2A}{h}}  \\  \\ plug \: A = 12 \: and \: h = 4 \\  \\ b =  \frac{2 \times \cancel{12}}{ \cancel4}  \\  \\ b = 2 \times 3 \\  \\ b \:  = 6  \: in

8 0
3 years ago
A $5000 principal is invested in two accounts, one earning 1% interest and the another earning 6% interest. If the total interes
algol [13]

Answer: in the 1% account we have $2600 and in the 6% account we have $2400.

Step-by-step explanation:

We have two amounts A and B such that:

Where A is the amount invested in the 1% earning interest account and B is the amount invested in the 6% earning interest account.

A + B = $5000,

If the interest is yearly, then we have that, after one year, the interest is:

A*(1%/100%) + B*(6%/100%) = $170

A*0.01 + B*0.06 = $170

So we have two equations:

A + B = $5000

A*0.01 + B*0.06 = $170

In the first equation we can isolate A and get:

A = $5000 - B

and replace it in the other equation:

($5000 - B)*0.01 + B*0.06 = $170

$50 + B*0.05 = $170

B*0.05 = $120

B = $120/0.05 = $2400

Then A = $5000 - $2400 = $2600.

4 0
3 years ago
Jay's mean score for four quizzes is 99. ​ ​His scores for the first three quizzes are 88 , 55 , and 99. ​ ​What is Jay's score
Katarina [22]

Answer: 154

Step-by-step explanation:

The mean is calculated by adding up all the numbers and dividing by the number of observations added up.

The above can therefore be expressed as:

(88 + 55 + 99 + x) / 4 = 99

242 + x = 99 * 4

242 + x = 396

x = 396 - 242

x = 154

6 0
3 years ago
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