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2 years ago

What is the value of -3+(-4+7(2) -28 -3 3 15

Mathematics

1 answer:

aleksandrvk [35]2 years ago

7 0

The answer is 7 bro is that a option ?

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Solve x^2 +14x=15 by completing the square

ivanzaharov [21]

Answer:

x = -15 and x = 1

Step-by-step explanation:

Since we have to use the complete the square method, we first need to rewrite the equation in the form $x^{2}+2ax+a^{2}=(x+a)^{2}$ .

This results in $x^{2} + 14x + 7^{2} = 15 + 7^{2}$ .

Next, we simplify the equation to get $x^{2} +14x+7^{2} = 64$ .

Factoring the left side gives us $(x+7)^{2} = 64$ .

Finally we solve the equations: $x+7=\sqrt{64}$ and $x+7=-\sqrt{64}$ .

This gives us x=1, and x=-15

6 0

3 years ago

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The LATERAL Surface Area for the shape below is ____________. (assume the bases are the larger faces on the top and bottom.)

Zolol [24]

Answer:

$LA=210\ cm^2$

Step-by-step explanation:

we know that

The lateral area of the figure is given by

$LA=Ph$

where

P is the perimeter of the base (larger faces)

h is the height

Find the perimeter of the base P

$P=2(11+10)=42\ cm$

we have

$h=5\ cm$

substitute in the formula of lateral area

$LA=42(5)=210\ cm^2$

3 0

3 years ago

Maya drew a scale drawing of her room where 1.5 cm represented 4 ft. If the room was actually 16 ft by 12 ft what were the dimen

Butoxors [25]

If 1.5cm = 4ft

1.5÷4 =0.375

0.375cm= 1ft

16×0.375=6
12×0.375=4.5

hopefully this is correct and helped! ♡

7 0

3 years ago

What is the measure of angle 2?

Anit [1.1K]

Answer:

137

Step-by-step explanation:

38 + 48 = 86

86/2 = 43

180 - 43 = 137

5 0

3 years ago

Umm I need a lot pf help here im lost

OleMash [197]

Answer:

51.39 units³

Step-by-step explanation:

The volume (V) of the prism is calculated as

V = area of base × height

Here area of base = 5.71 and height = 9, thus

V = 5.71 × 9 = 51.39 units³

7 0

3 years ago

Read 2 more answers