1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
qwelly [4]
3 years ago
11

T ≤ -4 Someone please show me how to do this ​

Mathematics
1 answer:
masya89 [10]3 years ago
6 0
It means t is less than or equal to -4 so it could be -4 or below. Any other questions? :)
You might be interested in
Which math expression means "the quotient of 39 and 13"?
Mkey [24]

Answer:  39.13

Step-by-step explanation:

:)

3 0
2 years ago
Read 2 more answers
In kilometers, the approximate distance to the earth's horizon from a point h meters above the surface can be determined by eval
Maslowich
In kilometers, the approximate distance to the earth's horizon from a point h meters above the surface can be determined by evaluating the expression 

d= \sqrt{12h}

We are given the height h of a person from surface of sea level to be 350 m and we are to find the the distance to horizon d. Using the value in above expression we get:

d= \sqrt{12*350}=64.81

Therefore, the approximate distance to the horizon for the person will be 64.81 km
8 0
3 years ago
In circle D, angle ADC measures (7x + 2)°. Arc AC
Akimi4 [234]

Answer:

The measure of angle ABC is 36° ⇒ 1st answer

Step-by-step explanation:

Let us revise some important facts in the circle

The measure of the center angle is equal to the measure of its subtended arc

The measure of the inscribed angle is equal to half the measure of the central angle subtended by the same arc

The vertex of a central angle is the center of the circle and its sides are radii in the circle

The vertex of an inscribed angle is a point on the circle, and its sides are chords in the circle

In circle D

∵ D is the center of the circle

∵ A and C lie on the circle

- DA and DC are radii

∴ ∠ADC is a central angle subtended by arc AC

∴ m∠ADC = m of arc AC

∵ m∠ADC = (7x + 2)°

∵ m of arc AC = (8x - 8)°

- Equate them to find x

∴ 8x - 8 = 7x + 2

- subtract 7x from both sides

∴ x - 8 = 2

- Add 8 to both sides

∴ x = 10

Substitute the value of x in the measure of ∠ADC

∵ m∠ADC = 7(10) + 2 = 70 + 2

∴ m∠ADC = 72°

∵ AB and BC are two chords in circle D

∴ ∠ABC is an inscribed angle subtended by arc AC

∵ ∠ADC is a central angle subtended by arc AC

- By using the 2nd fact above

∴ m∠ABC =  m∠ADC

∴ m∠ABC =  × 72

∴ m∠ABC = 36°

7 0
3 years ago
How would you solve this? help.
Eddi Din [679]

Answer:

<em>Center: (3,3)</em>

<em>Radius: </em>2\sqrt{5}<em />

Step-by-step explanation:

<u>Midpoint and Distance Between two Points</u>

Given two points A(x1,y1) and B(x2,y2), the midpoint M(xm,ym) between A and B has the following coordinates:

\displaystyle x_m=\frac{x_1+x_2}{2}

\displaystyle y_m=\frac{y_1+y_2}{2}

The distance between both points is given by:

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Point (5,7) is the center of circle A, and point (1,-1) is the center of the circle B. Given both points belong to circle C, the center of C must be the midpoint from A to B:

\displaystyle x_m=\frac{5+1}{2}=\frac{6}{2}=3

\displaystyle y_m=\frac{7-1}{2}=\frac{6}{2}=3

Center of circle C: (3,3)

The radius of C is half the distance between A and B:

d=\sqrt{(1-5)^2+(-1-7)^2}

d=\sqrt{16+64}=\sqrt{80}=\sqrt{16*5}=4\sqrt{5}

The radius of C is d/2:

r =4\sqrt{5}/2 = 2\sqrt{5}

Center: (3,3)

Radius: 2\sqrt{5}

8 0
3 years ago
Bella thinks that the fraction 4/8 is the simplest form of 2/4 find and correct her mistake
Mars2501 [29]
1/2 is the simplest form
6 0
3 years ago
Read 2 more answers
Other questions:
  • If y varies directly as x, and y is 48 when x is 6, give an expression can be used to find the value of y when x is 2?
    5·1 answer
  • Of the new cars in a car dealer's lot, 1 in 6 are white. Today, 4 cars were sold.
    10·1 answer
  • What is the cube root of 3 and 343
    14·1 answer
  • A garden needs 100 feet of fencing . The width needs to be 20 feet what is the length of the garden
    15·1 answer
  • the product of the present ages of Two Sisters is 150. 5 years ago, the elder sister was twice as old as her younger sister find
    13·1 answer
  • Put the following equation of a line into slope-intercept form, simplifying all fractions. 3y - 40 = 9​
    7·1 answer
  • The ages of attendees at two different movies were randomly sampled. The data is presented in the double box plot. Compare the m
    7·1 answer
  • URGENT!!!! BRAINLIEST FOR CORRECT ANSWER!
    8·1 answer
  • What is the value of x?
    11·2 answers
  • 3. What are the roots of the polynomial y = x³ - 8?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!