All categories

3 years ago

Solve the inequality and express your answer in interval notation. x + 8x-7 <0

Mathematics

1 answer:

earnstyle [38]3 years ago

3 0

Answer:

x<7/9

Step-by-step explanation:

You might be interested in

Please need help thank you

jenyasd209 [6]

Answer:

q.4 is 24 pages

q.5 is 27 yrs. old

7 0

3 years ago

Use 2 unit multipliers to convert 4 square feet to square inches

allochka39001 [22]

Answer:

4 square feet is equal 576 square inches

Step-by-step explanation:

to convert 4 square feet to square inches

Now, We know that 1 feet = 12 inches

∴ $1^{2} \ feet = 12^2 \ inches\\1\ square\ feet= 144 \ square \ inches\\$

Now we need to find 4 square feet

$4 \times 1\ square\ feet= 4\times 144 \ square \ inches\\4 \ square\ feet= 576 \ square \ inches$

5 0

3 years ago

A plane intersects the center of a sphere with a volume of about 113.1 m3. What is the area of the cross section? Round to the n

ivolga24 [154]

Answer:

Step-by-step explanation:

$if ~radius=r \\volume =\frac{4}{3} \pi r^3\\113.1=\frac{4}{3} \pi r^3\\113.1 \times \frac{3}{4 \pi } =r^3\\\frac{339.3 }{4 \times 3.14} =r^3\\r^3=\frac{339.3}{12.56} \approx 27\\r=3\\area =\pi r^2=\pi *3^2=9\pi =9*3.14=28.26 \approx 28.3 ~m^2$

5 0

3 years ago

The area of the trapezoid is 9 square centimeters.

Lana71 [14]

Answer:

Height : 3 cm

Step-by-step explanation:

The formula for a trapezoid is

<u> a+b</u> ×height

Rearrange for formula :

$2 \times \frac{area}{ base + base }$

$2\frac{9}{ 4 + 2 } = 3cm$

7 0

2 years ago

Read 2 more answers

Which Roman numeral is equivalent to the number below?

mafiozo [28]

I believe LX is the answer.

5 0

3 years ago