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3 years ago

The complement of an acute angle is an obtuse angle. A.) True B.) False

2 answers:

8 0

Your answer is False because obtuse angles are wide acute angles are right in the like this:^ but turn it to the west a right angle is like an L so your answer is False.

Your answer is False or B.

trasher [3.6K]3 years ago

6 0

True because they would go together to get to 180 degrees

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Isabella spends $4.87 on paintbrushes and paint. How many of each item does she buy? Explain how you found your answer. Paint br

Lelechka [254]

The complete question in the attached figure

Let
x-----------------> number of paintbrushes----------- > $0.95 each
y---------------- > number of jar of paint-------------- > $0.99 each

we know that
0.95x+0.99y = $4.87

using a graph tool

the solution will be a pair of coordinates that are whole numbers -- > see the attached figure

the solution is the point (2,3)

x=2---------------------- > number of paintbrushes
y=3---------------------- > number of jar of paint

the answer is
number of paintbrushes=2
number of jar of paint=3

8 0

3 years ago

Roberta has $10,540 to invest. She plans to invest her money in certificates of deposit (CDs) that have 2.1% interest, a stock p

ira [324]

Answer:

The amount invested in CDs is $1,340

The amount invested in the stock portafolio is $6,900

The amount invested in the saving accounts is $2,300

Step-by-step explanation:

Let

x ---->the amount invested in CDs at 2.1%

y ---> the amount invested in the stock portfolio at 2.5%

z ---> the amount invested in the savings account at 1.5%

$x+y+z=10,540$ ----> equation A

$z=\frac{1}{3}y$ ----> equation B

substitute equation B in equation A

$x+y+\frac{1}{3}y=10,540$

$x+\frac{4}{3}y=10,540$

$x=10,540-\frac{4}{3}y$ ----> equation C

we know that

The total interest earned by the three amount must be equal to $231.69

$0.021x+0.025y+0.015z=231.69$ ----> equation D

substitute equation B and equation C in equation D

$0.021(10,540-\frac{4}{3}y)+0.025y+0.015(\frac{1}{3}y)=231.69$

solve for y

$221.34-0.0315y+0.025y+0.005y=231.69$

$0.0015y=231.69-221.34$

$0.0015y=10.35$

$y=\$6,900$

Find the value of x

$x=10,540-\frac{4}{3}(6,900)$

$x=\$1,340$

Find the value of z

$z=\frac{1}{3}(6,900)$

$z=\$2,300$

7 0

3 years ago

What is the base of the triangle if the area is 56 square meters and the height is 7 m?

attashe74 [19]

Answer:

the answer is b

Step-by-step explanation:

the answer is B 16 m

5 0

2 years ago

I need help with 3 and 4

inn [45]

Simply divide the whole by the two HCF, Such as 5 and 3, and 7 and 3.

3 0

3 years ago

Read 2 more answers

Find the average rate of change of the function

8090 [49]

The average rate of change from an interval from $x_1$ to $x_2$ is the change in the value of the function divided by the change in x.

$\dfrac{f(x_2)-f(x_1)}{x_2-x_1}$

Let's find the values of $f(x_1)$ and $f(x_2)$

$f(x_1)=4^2+3(4)=28$
$f(x_2)=9^2+3(9)=108$

$\dfrac{f(x_2)-f(x_1)}{x_2-x_1}$

$=\dfrac{108-28}{9-4}=\boxed{16}$

Your answer is 16. I hope this helps and have an awesome day! :)

4 0

3 years ago

Read 2 more answers