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koban [17]
3 years ago
12

What two dimensional figure will be created by a horizontal cross section

Mathematics
2 answers:
andre [41]3 years ago
8 0
A.) square pyramid.
notka56 [123]3 years ago
5 0
Square pyramid (a.).
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Find the x-intercept of the parabola with vertex (1,-13) and y-intercept (0,-11).
Advocard [28]
1. find equation

general solutions are:
y = a x^{2} +bx +c \\ \\ \frac{dy}{dx} = 2ax +b

for P(0,-11)

-11 = 0a + 0b +c ⇒c = -11

for p(1,-13)
-13 = 1a + 1b -11 \\ a+b = -2

and

0 = 2a + b \\ b = -2a

solve for a and b:
a - 2a = -2 \\ a = 2 \\ b = -4

the total equation is now:

y = 2 x^{2} -4x -11

To find the x-intercept set y=0 and solve for x

0 = 2 x^{2} -4x-11
4 0
3 years ago
Read 2 more answers
To help solve the trigonometric inequality sec(x/3)+4>2-sec(x/3) which two equations could you graph
geniusboy [140]

Answer:

b. y=sec(x/3) and y=-1

Step-by-step explanation:

sec(x/3) + 4 > 2 − sec(x/3)

2 sec(x/3) > -2

sec(x/3) > -1

Graph y = sec(x/3) and y = -1.

6 0
3 years ago
A recipe uses 1/4 teaspoons of baking soda for every ½ cup of flour. What is the unit rate in cups per teaspoon?
Verizon [17]

Answer:

2 cups per teaspoon, 2 cups/1 tsp

Step-by-step explanation:

to get the teaspoon amount to 1 (you have to for a unit rate), you multiply both sides by 4.

1/2 x 4 = 2

1/4 x 4 = 1

8 0
3 years ago
LA and B are vertical angles. If mZA = then find the value of x. (7x – 27) and m B = (3x + 29)°,
zhuklara [117]

we know that

Vertical angles are congruent angles

that means

substitute the given values

(7x – 27)=(3x + 29)

solve for x

7x-3x=29+27

4x=56

x=14

part b)

We know that

Supplementary angles are angles that their sum is equal to 180 degrees

so

A+B=180

substitute the given values

5x+25+x+17=180

solve for x

6x+42=180

6x=180-42

6x=138

x=23

Find the measure of Angle A

4 0
1 year ago
PLS PLS PLS HELP Honors 9th Grade Math!!!!
netineya [11]

Answer:

21=x ( alternate angles are equal)

3 0
3 years ago
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