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3 years ago

MZQRS = [?] HELP PLEASE !!

Mathematics

1 answer:

motikmotik3 years ago

6 0

Answer:

m∠QRS = 49°

Step-by-step explanation:

Complementary angles are angles that add up to 90°. So m∠ABC + m∠QRS = 90°. When you simplify you get 41° + m∠QRS = 90°. So m∠QRS = 49°.

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Find the possible values of c such that the line with equation y = 2x + c twice intersects the parabola with equation y = x^2 +

Maru [420]

Answer:

C>-1/4

Step-by-step explanation:

Two have intersection it must be:

2x+c= x^2+3x, i.e,

x^2+x-c=0

Solution of its equation is:

$x_{1,2}=\frac{-1+-\sqrt{1^2+4c}}{4c}$

If we we want two solution we must have that:

1+4c>0

So c>-1/4.

4 0

3 years ago

Read 2 more answers

Find the perimeter and area of the figure shown in the picture.

Nookie1986 [14]

Answer:

52 units

Step-by-step explanation:

Perimeter = sum of it sides =

15 + 8 + 6 + 17 + 6

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2 years ago

Evaluate, and round your answer to the nearest hundredth.

VashaNatasha [74]

Answer:

(d) -1.83

Step-by-step explanation:

The explicit expression for the sum is ...

S = (-11/5)×(1 -(-1/5)^10)/(1 -(-1/5)) = -2.2(1 -1.024×10^-7)/1.2

S = -1.8333331456

The sum is approximately -1.83.

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<em>Additional comment</em>

For a sum of a sequence with multiplier 'a' and common ratio r, we find ...

$\displaystyle S=\sum_{n=1}^{10}ar^n=ar+ar^2+ar^3+\dots+ar^{10}\\\\rS=ar^2+ar^3+\dots+ar^{10}+ar^{11}\\\\S-rS=ar+(ar^2-ar^2)+(ar^3-ar^3)+\dots+(ar^{10}-ar^{10})-ar^{11}\\\\S=\dfrac{ar-ar^{11}}{1-r}=ar\dfrac{1-r^{10}}{1-r}$

A calculator or spreadsheet can also find the sum for you.

7 0

3 years ago

Ms. Jones is baking a cake for her students. She needs 2/3 cup of brown sugar to make the cake. Right now, she has 3/4 cup of br

ch4aika [34]

2/3= 0.6667 which you can figure out by 2÷3
3/4= 0.75 which you can figure out by 3÷4
because 0.75 is greater than 0.6667 she has enough to make the cake.

5 0

3 years ago

The set of order pairs (-1, 8), (0,3) (1,2) and (2, -7) represent a function. What is the range of the function?

goldfiish [28.3K]

Answer: The range is the set {8, 3, 2, -7} which can be sorted to get {-7, 2, 3, 8}

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Explanation:

The range is simply the set of possible y values. All you have to do is list all the y coordinates and surround the values in curly braces. The curly braces indicate a set. Every point is of the form (x,y). The y coordinate is the second value listed of each ordered pair.

8 0

3 years ago