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zaharov [31]
3 years ago
10

Which statements are true? Select all that apply.

Mathematics
1 answer:
ohaa [14]3 years ago
5 0

Answer:

Two of these statements are true.

The function equals x^2 over the interval −∞ < x ≤ 0.

The function equals √x over the interval 0 ≤ x < ∞.

Step-by-step explanation:

If we look at the parent function of x^{2} we see that x^{2} function looks like a U shaped graph and in your graph we see it is the same as your graph from the interval (-∞,0).

If we look at the parent function of \sqrt{x}  we see that the

\sqrt{x} function looks like your graph from the interval (0,∞).

Suggestion:

I suggest memorizing every graph of parent functions that is introduced to you in math. This can help you visually with many problems in mathematics, and help you conceptualize material better. I also suggest looking up the definition of every word that may be unfamiliar to you like "interval" and "parent function". This will help you understand more advanced math notations and vocabulary in the future.

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A number p multiplied by - 4 is no more than 12
frez [133]

Answer:

-4p\leq12

Step-by-step explanation:

4 0
3 years ago
Markel has a discount card that reduces the price of his purchases at GameStop by 7%. If c represents the cost of Markel's purch
AnnZ [28]

Answer:

0.93c is the expression that represent Markel's bill.

Step-by-step explanation:

We are given the following in the question:

Discount card provides a discount of 7%.

Let c be the cost of Markel's purchases, then,

Discount given to Markel =

=\dfrac{7}{100}\times c\\\\=0.07c

Markel's bill =

= Cost price - Discount

= c - 0.07x\\=c(1-0.07)\\=0.93c

is the expression that represent Markel's bill.

3 0
4 years ago
If the circumference is 40 what's the diameter
Anna71 [15]

Answer:

12.73

Step-by-step explanation:

hdhd

C/D = 2πR / 2R = π

8 0
4 years ago
PLZ HELP, GIVING BRAINLIEST!!
Alex

Answer: the diameter of the circle is 226 cm

Step-by-step explanation:

The formula for determining the length of an arc is expressed as

Length of arc = θ/360 × 2πr

Where

θ represents the central angle.

r represents the radius of the circle.

π is a constant whose value is 3.14

From the information given,

Length of arc = 88π

θ = 140 degrees

Therefore,

88π = 140/360 × 2 × π × r

88π = 140/360 × 2 × π × r

Dividing both sides of the equation by π, it becomes

88 = 140/360 × 2r

88 × 360 = 140 × 2r = 280r

280r = 31680

r = 31680/280

r = 113 cm

Diameter = radius × 2

Diameter = 113 × 2 = 226 cm

4 0
4 years ago
Solve for x and y then find angle ABE
Soloha48 [4]

Answer:  x  is 9° ,  y is 21°. The measure of angle ABE is 48°.

Step-by-step explanation:

First we will solve for x.  

The variable x appears in the angle 8x + 18   and that angle is a right angle.

Right angles have the measure of 90 degrees so we will set the angle equal 90  and solve for x.

8x + 18 = 90    Subtract 18 from both sides

      - 18   -18  

8x = 72     divide both sides by 8

x = 9  

y is also on the right side and the combination of both angles has to also equal 90 degrees because they form a right angle.

Since we already know x is 9 we will input it into the left side for x and solve for y.

y + 3(9) + 2y = 90

3y + 27= 90

    -27     -27

3y = 63

 y = 21  

Now we need to find the measure of angle ABE.

ABE is represented by  y + 3x  so since we know the value of y and x we will input it into the expression and solve for the angle.

21 + 3(9) = m∠ABE

21 + 27= m∠ABE

48 = m∠ABE

This means the measure of angle ABE is 48°

5 0
3 years ago
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