MATHEMATICS COLLEGE

Does anybody know about this I'm stuckes it's about angles

Answers

Answer 1

Answer:

Answer:

the answer is 25 degrees

Answer 2

Answer:

Answer:

alpha = 25°

Step-by-step explanation:

The picture indicates a rectangle.

Alpha is in a straight corner of 90 °, so...

65 + alpha = 90

subtract 65 left and right of the = sign.

65 - 65 + alpha = 90 - 65

0 + alpha = 90 - 65

alpha = 25°

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Points F (0,0), G (9,0), and H (9,12) are the vertices of a triangle.What is the distance from point F to point H?A. 9B. 12C. 15D. 21

Sharon has a new beaded necklace. 72 out of the 80 beads on the necklace are blue. Whatpercentage of beads on Sharon's necklace are blue?
Write your answer using a percent sign (%).

Answers

Answer:

90%

Step-by-step explanation:

Step 1:

72/80 = x /100 Proportion

Step 2:

80x = 7200 Multiply

Step 3:

x = 7200 ÷ 80 Divide

Answer:

90%

Hope This Helps :)

Answer:

Sharon bought a necklace with 90% blue beads.

Step-by-step explanation:

We are given that Sharon's necklace has 80 beads. We are also given that of those 80 beads, 72 of them are blue.

Therefore, we can set up a ratio of blue beads to total beads in order to find out the relationship.

$\displaystyle (72)/(80)=(36)/(40)=(18)/(20)=(9)/(10)$

Then, using the fraction we receive as a result, we can convert this to a decimal.

$\displaystyle (9)/(10) = 0.9$

After we complete this calculation, we can multiply our decimal by 100 in order to obtain the relationship in percentage form.

$0.9 * 100 = 90\%$

Of the 80 beads, 90% were blue beads.

5. MAPPING Ben and Kate are making amap of their neighborhood on a piece of
graph paper. They decide to make one
unit on the graph paper correspond to
100 yards. First, they put their homes
on the map as shown below.

a. How many yards apart are Kate's and Ben's homes?

b. Their friend Jason lives exactly halfway between Ben and Kate. Mark the location of Jason's home on the
map. if my answers are wrong, correct me. i just used a pdf and idk if they’re right. ty ❤️

Answers

Answer:

a. 1,000 yards

b. (2, -1)

Step-by-step explanation:

Coordinates of Ben's House = (6, 2)

Coordinates of Kate's House = (-2, -4)

a. Number of yards between Kate and Ben's House using instance formula, $d = √((x_2 - x_1)^2 + (y_2 - y_1)^2)$ .

$d = √((6 -(-2))^2 + (2 -(-4))^2)$

$d = √((8)^2 + (6)^2)$

$d = √(64 + 36)$

$d = √(100)$

$d = 10 units$

1 unit = 100 yards

Therefore, 10 units = 1,000 yards.

Kate and Ben's House are 1,000 yards apart.

b. Since Jason's home is halfway between Ben and Kate's House, therefore, Jason's location is the midpoint between Ben and Kate's House. Use the midpoint formula to calculate the coordinates of Jason's location on the map, using (6, 2) and (-2, -4).

$M((x_1 + x_2)/(2), (y_1 + y_2)/(2))$

Plug in the values

$M((6 +(-2))/(2), (2 +(-4))/(2))$

$M((4)/(2), (-2)/(2))$

$M(2, -1)$

126314 tickets have been sold to a concert. On average, each ticket holder throws away 942grams of rubbish. The rubbish will be taken away in trucks that must not carry more than 575 kilograms each. Estimate the number of trucks that will be needed?

Answers

So, there are 118,987,788 grams of rubbish in total, which is equal to 118,987.788 kg of rubbish (as there are 1000g to a kilogram). Therefore, there are 118,987.788/575 = 206.94 trucks required, and thus 207 trucks will be required to carry the rubbish, as you can't have 0.94 of a truck.

The figure has line(s) of symmetry. What type(s) of symmetry does the figure have?

Answers

Answer:

i domisa

Step-by-step explanation:

Determine whether and are parallel, perpendicular, or neither. W(–4, 5), X(8, –1), Y(6, –2), Z(1, –7)

Answers

Answer: The question is that of Line WX and YZ are parallel or perpendicular, not WZ and XY unlike the other given answer.

THE ANSWER IS NEITHER

Step-by-step explanation:

See moc up i made. The two lines don't even intersect, I.E the answer is neither!

Answer:

You have not mentioned the joining points so I have joined the points WZ and XY and plotted in the graph. It seems that the lines WZ and XY are perpendicular.

Find the real value of x,y if

(1/(x^2+y^2))+(1/(x+yi))=1

Answers

It sounds like $x,y$ are supposed to be real numbers. If so, then we can do the following.

$\frac1{x^2+y^2}+\frac1{x+yi}=1$

Multiply the second term's numerator and denominator by the conjugate of the denominator:

$\frac1{x^2+y^2}+(x-yi)/((x+yi)(x-yi))=1$

$\frac1{x^2+y^2}+(x-yi)/(x^2+y^2)=1$

$(x+1-yi)/(x^2+y^2)=1$

Since the left hand side is equal to 1, this means it has no imaginary part, so that $y=0$ . Then the real parts of both sides of the equation give us