2 years ago

X2+8x=-1 complete the square

Mathematics

1 answer:

Sophie [7]2 years ago

6 0

(X+4)^2-15

This is the answer

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Given m LM=130, find m KLM

alisha [4.7K]

Answer:

65 degrees because tangent chord angles are half the size of the arc

7 0

2 years ago

Any help if possible Thank you ❤

Mariana [72]

$v = \frac{1}{3} \pi {r}^{2} h \\ r = 8 \: cm \\ h = 15 \: cm$
From the diagram, we can see that the radius of the cone is 8cm and the height of the cone is 15cm. We then just plug these numbers into the formula and simplify:
$v = \frac{1}{3} \pi {r}^{2} h \\ v = \frac{1}{3} \pi {(8)}^{2} (15) \\ v = 320\pi$
The volume of the cone is approximately 1005.3096 cm^3. With 3 sig figs, this is 1010 cm^3.

3 0

3 years ago

A student needed to find the measure of angle b. She incorrectly said m

devlian [24]

Measure of angle b= 27°

It’s a right angle, so 90-63=27!!!!!

5 0

1 year ago

Read 2 more answers

Which expression can be used to find the area of the square? Question 4 options: 2(6.4+6.4) 6.4² 6.4×2 2(6.4×6.4)

Nimfa-mama [501]

Option 2 => 6.4^2
Because area of a square = side *side or side^2
Hope this helps u..!!!

6 0

3 years ago

Find the 11th partial sum of the summation of negative 7i plus 22, from i equals 1 to infinity.

marta [7]

I think you mean,

$\sum_{i=1}^{\infty}(7i+22)$

You can use the usual formula,

$S_{k}=\frac{k}{2}(a_1+a_k)$

That in this case is,

$S_{11}=\frac{11}{2}(29+99)=704$

Where I have used,

$a_k=7\cdot k +22$

3 0

2 years ago