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2 years ago

What’s the correct answer for this? Select all the ones that apply

Mathematics

2 answers:

NNADVOKAT [17]2 years ago

7 0

Answer:

C and E

Step-by-step explanation:

ANP = BNP = 90 WILL PROVE THAT CD IS PERPENDICULAR TO AB.

ipn [44]2 years ago

3 0

C & E

Hope this helps!

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Pls help I’ll brainlest and add extra points for the correct answer

Alexandra [31]

Answer:

2x + 8x

10x

Step-by-step explanation:

Open the brackets and multiply x inside.

5 0

2 years ago

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Which ordered pair makes both inequalities true<br> Y<-x+1<br> Y>x

goldfiish [28.3K]

Answer:

x = -1 ; y = 1

Step-by-step explanation:

x = -1

y = 1

Plug in the corresponding numbers to the corresponding variables:

y < -x + 1

(1) < -(-1) + 1

1 < 1 + 1

1 < 2 (True)

y > x

1 > -1 (True).

7 0

2 years ago

A student scored 88 and 97 on her first two quizzes find the possible values for the third quiz to score that will give her an a

Katyanochek1 [597]

Answer: 87, 88, 89, 91, 92, 93, 94, 95, 96, 97, 98

Step-by-step explanation:

You basically try a whole bunch of numbers by taking those two numbers and another then adding them and dividing them by 3.

4 0

3 years ago

Read 2 more answers

1. Bob tried to answer the following question by finding the missing angle and rounding the answer to the nearest degree.

iren2701 [21]

Answer:

Part 1)

Bob's mistake was to have used the cosine instead of the sine

The measure of the missing angle is $53.13\°$

Part 2) The surface area of the pyramid is $288\ cm^{2}$

Step-by-step explanation:

Part 1)

Let

x----> the missing angle

we know that

In the right triangle o the figure

The sine of angle x is equal to divide the opposite side angle x to the hypotenuse of the right triangle

$sin(x)=\frac{16}{20}$

$x=arcsin(\frac{16}{20})=53.13\°$

Bob's mistake was to have used the cosine instead of the sine

Part 2) we know that

The surface area of the square pyramid is equal to the area of the square base plus the area of its four lateral triangular faces

$SA=b^{2}+4[\frac{1}{2}(b)(h)]$

where

b is the length side of the square

h is the height of the triangular lateral face

In this problem

$h=b/2$ -------> by an 45° angle

$b=2h$

$sin(45\°)=\frac{h}{6\sqrt{2}}$

$h=6\sqrt{2}(sin(45\°))=6\ cm$

Find the value of b

$b=2(6)=12\ cm$

Find the surface area

$SA=12^{2}+4[\frac{1}{2}(12)(6)]=288\ cm^{2}$

3 0

3 years ago

The coordinates of the four vertices of the rectangle are (1,-1), (4,-1), (4,1), and (1,1). The perimeter of the rectangle is ho

vlada-n [284]

Answer:

Step-by-step explanation:

4-1=3 (length of base)

-1-1=-2 (absolute value of height is 2)

3+2+2+3=10

5 0

2 years ago